Monitoring device for water environment ecological heavy metal pollution

Abstract

The invention relates to the technical field of water sampling, in particular to a water environment ecological heavy metal pollution monitoring device which comprises a caisson, a plugging mechanism, a water pushing mechanism, a cleaning and scraping mechanism, a negative pressure mechanism and an air guide mechanism. The connecting frame drives the two connecting cylinders to descend into the water inlet, so that the two ends of the water inlet are blocked, the consistency and stability of samples in the single sampling process can be guaranteed, and the accuracy of subsequent data analysis is guaranteed as much as possible. A water sample in a water inlet is injected into a water receiving barrel through two push plates, air in the water receiving barrel is conveyed into a connecting groove through a guide pipe, airflow is forced to blow and clean a filter screen through a through hole, the effect of comprehensively cleaning the filter screen is improved, the negative pressure water suction effect is formed through a water inlet channel, and in the reset process of the push plates, the water sample in the water receiving barrel is sucked by the water inlet channel. And water flow filled between the push plate and the connecting cylinder is forced to flush the filter screen through the connecting groove, so that the overall cleaning effect is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of water sampling, and in particular to a monitoring device for ecological heavy metal pollution in water environment. Background Art

[0002] With the rapid development of industry, the pollution problems faced by the natural environment are becoming more and more serious, especially for important natural resources such as water resources. In order to protect and manage the ecological environment, it is usually necessary to monitor the water flow for heavy metal pollution and other aspects. Since heavy metals usually exist in the form of ions in the water flow, they will flow with the flow effect of the water flow. When conducting detection, it is necessary to take samples from the flowing water for random inspection in order to determine the pollution situation of this part of the water. At this time, corresponding sampling equipment is needed to assist in completing the final monitoring work.

[0003] When sampling flowing water, impurities in the water will usually gather near the sampling equipment due to the flowing water, especially the existing sampling work using cannula suction, which has a high probability of blockage and needs to be cleaned manually, otherwise it will affect the subsequent water intake effect. However, the efficiency of manual cleaning is extremely low and due to the particularity of the structure, the cleaning effect cannot be guaranteed and the cleaning process is extremely complicated. In addition, after the impurities on the surface of the water inlet structure are cleaned, the impurities that enter the interior may enter the final collection point due to water absorption again, causing interference in data analysis for the water quality monitoring work after sampling, affecting the objectivity and effectiveness of the final monitoring work. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a monitoring device for heavy metal pollution in water environment ecology.

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

[0006] A monitoring device for heavy metal pollution in water environment ecology, comprising a caisson, both sides of the caisson are fixedly connected with diversion slopes, both ends of the caisson are penetrated with water inlets, the water inlets and the diversion slopes are penetrated, a filter is rotatably connected inside the water inlet, a downpipe is connected at the bottom of the middle of the water inlet, a water injection head is arranged at the bottom of the downpipe, a rotating disk is rotatably connected inside the caisson, a water receiving cylinder is plugged at the top of the rotating disk, and the water injection port can be plugged with the top of the water receiving cylinder, and also includes;

[0007] A plugging mechanism, wherein the plugging mechanism is slidably connected to the interior of the caisson, and the plugging mechanism is slidably connected to the water inlet, and the plugging mechanism is used to plug both ends of the water inlet;

[0008] A water pushing mechanism, the water pushing mechanism is slidably connected to the inside of the blocking mechanism, and is used to push the water flow inside the blocked water inlet;

[0009] A scraping mechanism, the scraping mechanism is rotatably connected to the surface of the filter screen, and the scraping mechanism is used to clean impurities on the surface of the filter screen;

[0010] A negative pressure mechanism, wherein the negative pressure mechanism is arranged inside the caisson, and one end of the negative pressure mechanism is connected to one side of the water inlet, and the negative pressure mechanism is used to flush the filter screen;

[0011] And an air guide mechanism, wherein the air guide mechanism is arranged inside the caisson and is used for blowing and cleaning the filter screen.

[0012] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, the blocking mechanism includes two connecting tubes and two connecting frames, the connecting tubes and the connecting frames are both slidably connected to the inside of the caisson, the connecting tube is located at the top of the water inlet, and the connecting tube can enter the water inlet from the top of the water inlet, the top of the connecting tube is fixedly connected to the connecting frame, a connecting strip is fixedly connected between the two connecting frames, the connecting strip is located above the two connecting tubes, one of the connecting frames is fixedly connected to a cylinder at the bottom, the cylinder is fixedly connected to the inside of the caisson, the inside of the caisson and the two sides of the bottom of the connecting tube are symmetrically slidably connected with closing blocks, the surface of the closing block is fixedly connected to a top spring, and the other end of the top spring is fixedly connected to the inside of the caisson.

[0013] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, the water pushing mechanism includes a telescopic rod and a push plate, the telescopic rod is fixedly connected to the inside of the connecting tube, the output end of the telescopic rod is penetrated by one end of the connecting tube, and the end of the telescopic rod that penetrates to the outside of the connecting tube is fixedly connected to the push plate, the push plate is slidably connected to the inside of the water inlet, and the radius of the push plate matches the radius of the water inlet, and the two push plates slide in opposite directions.

[0014] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, the scraping mechanism includes a lever, a guide tooth and two guide wheels. The lever is rotatably connected to the surface of the filter screen, the guide tooth is fixedly connected to one side of the lever, and the guide tooth is rotatably connected to the inside of the caisson. The surface of the filter screen is fixedly connected with a gear ring, which meshes with the guide tooth. The two guide wheels are distributed up and down, and the upper guide wheel is fixedly connected to the guide tooth. A servo motor is fixedly connected to the inside of the caisson. Both ends of the servo motor are fixedly connected to the lower guide wheel through a coupling, and the two guide wheels are connected by a belt drive. A cleaning head is fixedly connected to the surface of the connecting cylinder away from the push plate, and a brush plate is provided on the side of the cleaning head close to the filter screen. A through hole is opened on the surface of the brush plate, and the through hole is arranged to penetrate the inside of the cleaning head.

[0015] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, the negative pressure mechanism includes two water inlets and two sealing blocks. The two water inlets are symmetrically opened on both sides of the caisson surface, and one end of the water inlet is penetrated by the water inlet. A connecting groove is opened inside the connecting tube. The two sealing blocks are symmetrically rotatably connected to the inside of the connecting groove. The two ends of the connecting groove are respectively connected to the water inlet and the inside of the cleaning head. A connecting head is fixedly connected to the top of the sealing block, and the connecting head is rotatably connected to the inside of the connecting tube. A coil spring is fixedly connected to one side of the surface of the connecting head, and the other end of the coil spring is fixedly connected to the inside of the connecting tube. A pressure block is elastically rotatably connected to the inside of the water inlet near one end of the water inlet, and the pressure block can block the water inlet.

[0016] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, the air guide mechanism includes a connecting plate and two conduits. The connecting plate is fixedly connected to the bottom of the water injection head, and a telescopic tube is fixedly connected to the top of the connecting plate. The other end of the telescopic tube is connected to the bottom end of the downpipe. The two conduits are symmetrically connected to the two sides of the top of the connecting plate. The two conduits are slidably connected to the interior of the caisson, and the other end of the conduits is connected to the bottom of the water inlet. Vents are provided on both sides of the bottom of the inner wall of the water inlet, and the inside of the vent is elastically rotatably connected with a baffle. A connecting port is provided through the bottom of the inner wall of the connecting groove, and the connecting port is connected to the vent, and the connecting port is located on one side of the sealing block. Two limit blocks are fixedly connected to the inside of the water inlet and the vent, and the two limit blocks are staggered on both sides of the pressure block and the baffle.

[0017] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, a pull rod is hinged in the middle of one of the connecting frames, and a gear rod is hinged at the other end of the pull rod, the gear rod is slidably connected to the inside of the caisson, and a ratchet is fixedly connected to the bottom of the turntable. The surface of the ratchet is unidirectionally meshed with a gear sleeve and is rotatably connected to the inside of the caisson, the gear rod is meshed with the gear sleeve, and a connecting block is fixedly connected to one side of the water injection head, and the other end of the connecting block is fixedly connected to one of the connecting frames.

[0018] In the above-mentioned monitoring device for ecological heavy metal pollution in water environment, a connection box is plugged into one side of the caisson, and a number of cover plates are arranged vertically inside the connection box. An elastic top plate is fixedly connected to the inside of the connection box, and the elastic top plate is slidably connected to the top of the cover plate. Two connecting seats are symmetrically fixedly connected to the surface of the water receiving cylinder, and a spring block is arranged inside the connecting seat, which is clamped with the cover plate after the cover plate and the water receiving cylinder are slid and closed.

[0019] Compared with the existing technology, the advantages of this monitoring device for heavy metal pollution in water environment ecology are:

[0020] 1. The two connecting tubes are driven down into the water inlet by the connecting frame to complete the blocking of both ends of the water inlet, which can ensure the consistency and stability of the samples during a single sampling process and ensure the accuracy of subsequent data analysis as much as possible;

[0021] 2. Use two push plates to inject the water sample in the water inlet into the water collecting tube, use the conduit to transport the air in the water collecting tube to the connecting groove, and force the air flow through the through hole to blow and clean the filter, thereby improving the effect of comprehensive cleaning of the filter;

[0022] 3. When the two push plates are close to each other, the negative pressure water absorption effect is formed through the water inlet. When the push plates are reset, the water flow filled between the push plates and the connecting tube is forced to flush the filter through the connecting groove, further improving the overall cleaning effect;

[0023] In summary, the present invention drives the two connecting cylinders to descend into the water inlet through the connecting frame, thereby completing the blocking of the two ends of the water inlet, which can ensure the consistency and stability of the samples during a single sampling process and ensure the accuracy of subsequent data analysis as much as possible. The water sample in the water inlet is injected into the water receiving cylinder through two push plates, and the air in the water receiving cylinder is transported to the connecting groove through the conduit, and the air flow is forced to blow and clean the filter through the through hole, thereby improving the effect of comprehensive cleaning of the filter, and forming a negative pressure water absorption effect through the water inlet. In the process of resetting the push plate, the water flow filled between the push plate and the connecting cylinder is forced to flush the filter through the connecting groove, further improving the overall cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the diversion slope of the present invention;

[0026] Figure 3 It is a schematic diagram of the cross-sectional structure of the caisson of the present invention;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the water inlet of the present invention;

[0028] Figure 5 It is a schematic diagram of the cross-sectional structure of the closing block of the present invention;

[0029] Figure 6 It is a schematic diagram of the cross-sectional structure of the downpipe of the present invention;

[0030] Figure 7 The present invention Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0031] Figure 8It is a schematic diagram of the cross-sectional structure of the connection groove of the present invention;

[0032] Fig. 9 The present invention Figure 8 A schematic diagram of the partially enlarged structure at B in the middle;

[0033] Fig.10 It is a schematic diagram of the connection structure of the connection box of the present invention;

[0034] Fig.11 It is a schematic diagram of the cross-sectional structure of the connection box of the present invention;

[0035] Fig.12 It is a schematic diagram of the cross-sectional structure of the connecting seat of the present invention;

[0036] Fig.13 It is a schematic diagram of the cross-sectional structure of the water inlet of the present invention;

[0037] Fig.14 The present invention Fig.13 A schematic diagram of the partially enlarged structure at C in the middle;

[0038] Fig.15 It is a schematic diagram of the cross-sectional structure of a turntable of the present invention.

[0039] In the figure: 1, caisson; 2, diversion slope; 3, water inlet; 4, filter screen; 5, downpipe; 6, water injection head; 7, turntable; 8, water receiving cylinder; 9, blocking mechanism; 901, connecting cylinder; 902, connecting frame; 10, water pushing mechanism; 101, telescopic rod; 102, pushing plate; 11, scraping mechanism; 111, lever; 112, guide tooth; 113, guide wheel; 12, negative pressure mechanism; 121, water inlet; 122, sealing block; 13, air guide mechanism; 131, connecting plate; 132, conduit; 14, connecting strip; 1 5. Cylinder; 16. Closing block; 17. Top spring; 18. Gear ring; 19. Servo motor; 20. Cleaning head; 21. Brush plate; 22. Through hole; 23. Connecting groove; 24. Connecting head; 25. Coil spring; 26. Pressure block; 27. Telescopic tube; 28. Vent; 29. ​​Baffle; 30. Connecting port; 31. Limit block; 32. Pull rod; 33. Gear rod; 34. Ratchet; 35. Gear sleeve; 36. Connecting block; 37. Connecting box; 38. Cover plate; 39. Elastic top plate; 40. Connecting seat; 41. Spring block. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0042] Reference Figure 1-Figure 15 , a monitoring device for ecological heavy metal pollution in water environment, comprising a caisson 1, both sides of the caisson 1 are fixedly connected with a diversion slope 2, both ends of the caisson 1 are penetrated with a water inlet 3, the water inlet 3 and the diversion slope 2 are penetrated, the water inlet 3 is internally rotatably connected with a filter screen 4, the bottom of the middle part of the water inlet 3 is connected with a downpipe 5, the bottom end of the downpipe 5 is provided with a water injection head 6, the caisson 1 is internally rotatably connected with a turntable 7, the top of the turntable 7 is plugged with a water receiving cylinder 8, the water injection port can be plugged with the top of the water receiving cylinder 8, and also includes; a blocking mechanism 9, the blocking mechanism 9 is slidably connected to the inside of the caisson 1, and the blocking mechanism 9 is slidably connected to the water inlet 3, the blocking mechanism 9 is used to block the two ends of the water inlet 3, the blocking mechanism 9 includes two connecting tubes 901 and two connecting frames 902, the connecting tube 901 and the connecting frame 902 are both slidably connected to the inside of the caisson 1, The connecting tube 901 is located at the top of the water inlet 3, and the connecting tube 901 can enter the water inlet 3 from the top of the water inlet 3. The top of the connecting tube 901 is fixedly connected to the connecting frame 902. A connecting strip 14 is fixedly connected between the two connecting frames 902. The connecting strip 14 is located above the two connecting tubes 901. The bottom of one of the connecting frames 902 is fixedly connected to a cylinder 15. The cylinder 15 is fixedly connected to the interior of the caisson 1. The interior of the caisson 1 is symmetrically slidably connected with closing blocks 16 on both sides of the bottom of the connecting tube 901. The surface of the closing block 16 is fixedly connected with a top spring 17. The other end of the top spring 17 ...

[0043] Among them, the sinking effect of the weight of the caisson 1 is used to ensure that the entire equipment can sink to the middle and bottom of the flowing water, and water is taken in through the water inlet 3. After the water inlet 3 is completely filled with water, the two connecting frames 902 are driven to descend by the cylinder 15. At this time, the two connecting tubes 901 will enter the water inlet 3 from the top of the water inlet 3 and completely block the water inlet 3. At this time, the external water flow will not be mixed with the water flow inside the water inlet 121, which can ensure the stability of water flow sampling and the consistency of the sample as much as possible. When the connecting tube 901 does not enter the water inlet 3, the two closing blocks 16 are pushed by the top spring 17 to contact each other, thereby completing the sealing effect on the top of the water inlet 3. During the descent of the connecting tube 901, the two closing blocks 16 will be pushed away from each other and the top spring 17 will be compressed. After the connecting tube 901 completely enters the water inlet 3, the top spring 17 recovers and drives the two closing blocks 16 to contact again to close the top of the water inlet 3, thereby ensuring that the water inlet 3 is completely closed.

[0044] The scraping mechanism 11 is rotatably connected to the surface of the filter screen 4. The scraping mechanism 11 is used to clean the impurities on the surface of the filter screen 4. The scraping mechanism 11 includes a lever 111, a guide tooth 112 and two guide wheels 113. The lever 111 is rotatably connected to the surface of the filter screen 4. The guide tooth 112 is fixedly connected to one side of the lever 111, and the guide tooth 112 is rotatably connected to the inside of the caisson 1. The surface of the filter screen 4 is fixedly connected with a toothed ring 18, which meshes with the guide tooth 112. The two guide wheels 113 are arranged in an upper and lower manner. The upper guide wheel 113 is fixedly connected to the guide tooth 112, the interior of the caisson 1 is fixedly connected to a servo motor 19, both ends of the servo motor 19 are fixedly connected to the lower guide wheel 113 through a coupling, and the two guide wheels 113 are connected by a belt drive, and a cleaning head 20 is fixedly connected to the surface of the connecting cylinder 901 away from the push plate 102, and a brush plate 21 is provided on the side of the cleaning head 20 close to the filter screen 4, and a through hole 22 is opened on the surface of the brush plate 21, and a through hole 22 and an internal through hole 22 of the cleaning head 20 are provided. The air guide mechanism 13 is arranged inside the caisson 1. The air guide mechanism 13 is used to blow and clean the filter screen 4. The air guide mechanism 13 includes a connecting plate 131 and two conduits 132. The connecting plate 131 is fixedly connected to the bottom of the water injection head 6. The top of the connecting plate 131 is fixedly connected with a telescopic tube 27. The other end of the telescopic tube 27 is connected to the bottom end of the downpipe 5. The two conduits 132 are symmetrically connected to the two sides of the top of the connecting plate 131. The two conduits 132 are slidably connected to the inside of the caisson 1. The other end of the conduit 132 is connected to the bottom of the water inlet 3, and vents 28 are provided on both sides of the bottom of the inner wall of the water inlet 3. The inside of the vent 28 is elastically rotatably connected with a baffle 29. A connecting port 30 is provided through the bottom of the inner wall of the connecting groove 23. The connecting port 30 is connected to the vent 28, and the connecting port 30 is located on one side of the sealing block 122. Two limit blocks 31 are fixedly connected to the inside of the water inlet 121 and the vent 28, and the two limit blocks 31 are staggered on both sides of the pressure block 26 and the baffle 29.

[0045] Among them, the servo motor 19 drives the two guide teeth 112 to rotate through the guide wheel 113, thereby driving the lever 111 to rotate on one side of the surface of the filter 4, so as to clean the filter 4, and at this time the filter 4 is in a rotating state. After the connecting cylinder 901 enters the water inlet 3, the brush plate 21 of the cleaning head 20 will slide with the other side of the surface of the filter 4, so as to ensure that the other side of the surface of the filter 4 can be cleaned synchronously, and while the water receiving cylinder 8 receives the water sample, the air inside it will be passed to the vent 28 through the connecting plate 131 and the two conduits 132, and the baffle 29 in the vent 28 will rotate due to the pushing effect of the air pressure, so as to enter the connecting groove 23 and blow the filter 4 through the through hole 22, thereby improving the cleaning effect on the surface of the filter 4.

[0046] A water pushing mechanism 10, which is slidably connected to the inside of the blocking mechanism 9, and is used to push the water flow inside the water inlet 3 after blocking. The water pushing mechanism 10 includes a telescopic rod 101 and a push plate 102. The telescopic rod 101 is fixedly connected to the inside of the connecting tube 901, and the output end of the telescopic rod 101 is penetrated by one end of the connecting tube 901, and the end of the telescopic rod 101 that penetrates to the outside of the connecting tube 901 is fixedly connected to the push plate 102, and the push plate 102 is slidably connected to the inside of the water inlet 3, and the radius of the push plate 102 matches the radius of the water inlet 3, and the two push plates 102 slide in opposite directions. A negative pressure mechanism 12, which is arranged inside the caisson 1, and one end of the negative pressure mechanism 12 is connected to one side of the water inlet 3, and the negative pressure mechanism 12 is used to flush the filter 4. The negative pressure mechanism 12 includes two water inlets 121 and two sealing blocks 122. The two water inlets 121 are symmetrically opened on both sides of the surface of the caisson 1, and one end of the water inlet 121 is penetrated by the water inlet 3. A connecting groove 23 is opened inside the connecting tube 901. The two sealing blocks 122 are symmetrically rotatably connected to the inside of the connecting groove 23. The two ends of the connecting groove 23 are respectively connected to the inside of the water inlet 3 and the cleaning head 20. A connecting head 24 is fixedly connected to the top of the sealing block 122. The connecting head 24 is rotatably connected to the inside of the connecting tube 901. A coil spring 25 is fixedly connected to one side of the surface of the connecting head 24, and the other end of the coil spring 25 is fixedly connected to the inside of the connecting tube 901. A pressure block 26 is elastically rotatably connected to the inside of the water inlet 3 near one end of the water inlet 121, and the pressure block 26 can block the water inlet 121.

[0047] Among them, after the connecting tube 901 follows the connection frame 902 to descend and completely enter the water inlet 3, the water injection port follows the connection block 36 to descend and is plugged into the top of the water injection port, and the two telescopic rods 101 drive the two push plates 102 to approach each other, squeeze the water sample retained in the water inlet 3, and force the water sample to be poured into the water receiving tube 8 through the downpipe 5 and the water injection head 6. Since the water inlet 3 is in a completely closed state at this time, when the water sample inside it is poured into the water receiving tube 8, a negative pressure effect will be generated inside it. At this time, the negative pressure effect will balance the pressure by absorbing water from the outside of the caisson 1 through the water inlet 121. At this time, the pressure block 26 inside the water inlet 121 will rotate due to the pressure, thereby ensuring that the water inlet 121 is in an open state and that the water inlet 121 flows smoothly. The water inlet works smoothly, and the water flow entering the water inlet 3 through the water inlet 121 will be restricted between the push plate 102 and the connecting tube 901. After the water collecting tube 8 completes the work of collecting water samples and the push plate 102 is reset, the pressure block 26 in the water inlet 121 rotates to a state of closing the water inlet 121 due to elastic force, and cannot rotate in the opposite direction due to the limit block 31. At this time, the water flow filled between the connecting tube 901 and the push plate 102 will flow toward the cleaning head 20 through the connecting groove 23. As the water flow in the connecting groove 23 increases and the pressure increases, the connecting head 24 will drive the sealing block 122 to rotate by squeezing the coil spring 25, so as to ensure that the water flow can enter the cleaning head 20 and be sprayed through the through hole 22 to flush the filter screen 4.

[0048] A pull rod 32 is hinged in the middle of one of the connecting frames 902, and a gear rod 33 is hinged at the other end of the pull rod 32. The gear rod 33 is slidably connected to the inside of the caisson 1. A ratchet 34 is fixedly connected to the bottom of the turntable 7. A gear sleeve 35 is unidirectionally meshed on the surface of the ratchet 34. The gear sleeve 35 is rotatably connected to the inside of the caisson 1, and the gear rod 33 is meshed with the gear sleeve 35. A connecting box 37 is inserted on one side of the caisson 1. A plurality of cover plates 38 are vertically arranged inside the connecting box 37. An elastic top plate 39 is fixedly connected to the inside of the connecting box 37. The elastic top plate 39 is slidably connected to the top of the cover plate 38. Two connecting seats 40 are symmetrically fixedly connected to the surface of the water receiving tube 8. A spring block 41 is arranged inside the connecting seat 40. The spring block 41 is clamped on the cover plate 38 after the cover plate 38 and the water receiving tube 8 are slidably closed.

[0049] Among them, since the gear sleeve 35 drives the turntable 7 to rotate through the ratchet 34, during the rising process of the connecting frame 902, the gear rod 33 will be driven to slide toward the side close to the cylinder 15 through the pull rod 32. At this time, the rotation of the gear sleeve 35 will smoothly drive the turntable 7 to rotate through the ratchet 34, thereby driving the water receiving cylinder 8 injected with water samples to rotate in the direction away from the water injection head 6, and forcing the water receiving cylinder 8 that has not been injected with water samples to rotate to the bottom of the water injection head 6, thereby completing the work of multiple sampling. During the descent of the connecting frame 902, the gear rod 33 The effect of driving the gear sleeve 35 to rotate does not drive the ratchet 34 to rotate, so the turntable 7 does not rotate at this time. In addition, the water collecting tube 8 injected with water samples will gradually approach the bottom of the connecting box 37 during the rotation process, and force the connecting seat 40 to be plugged into the bottom of the cover. Through the clamping effect of the spring block 41, after the cover plate 38 and the connecting seat 40 are slidably plugged and the top of the water collecting tube 8 is closed, the cover plate 38 is forced to fit tightly and stably on the top of the water collecting tube 8, ensuring that the water sample inside the water collecting tube 8 will not spill.

[0050] The specific working principle and use method of the present invention are explained in detail below: when in use, the first step is to complete water intake through the water inlet 3. After the water inlet 3 is completely filled with water, the two connecting frames 902 are driven to descend by the cylinder 15. At this time, the two connecting tubes 901 will enter the water inlet 3 from the top of the water inlet 3 and completely block the water inlet 3. The two telescopic rods 101 drive the two push plates 102 to approach each other, squeeze the water sample retained in the water inlet 3, and force the water sample to be poured into the water receiving tube 8 through the downpipe 5 and the water injection head 6. At this time, the negative pressure effect will balance the pressure by absorbing water from the outside of the caisson 1 through the water inlet 121. While the water receiving tube 8 receives the water sample, the air inside it will be passed to the vent 28 through the connecting plate 131 and the two conduits 132. The baffle 29 in the vent 28 will rotate due to the top pushing effect of the air pressure, thereby entering the connecting groove 23 and blowing the filter screen 4 through the through hole 22;

[0051] In the second step, the servo motor 19 drives the two guide teeth 112 to rotate through the guide wheel 113, thereby driving the lever 111 to rotate on one side of the surface of the filter screen 4, so as to clean the filter screen 4. At this time, the filter screen 4 is in a rotating state. After the connecting cylinder 901 enters the water inlet 3, the brush plate 21 of the cleaning head 20 will not slide with the other side of the surface of the filter screen 4, so as to ensure that the other side of the surface of the filter screen 4 can be cleaned synchronously;

[0052] In the third step, during the rising process of the connecting frame 902, the pull rod 32 will drive the gear rod 33 to slide toward the side close to the cylinder 15. At this time, the rotation of the gear sleeve 35 will smoothly drive the turntable 7 to rotate through the ratchet 34, thereby driving the water receiving cylinder 8 injected with water samples to rotate in the direction away from the water injection head 6, and forcing the water receiving cylinder 8 that has not been injected with water samples to rotate to the bottom of the water injection head 6, forcing the connecting seat 40 to be plugged into the bottom of the cover, and through the clamping effect of the spring block 41, forcing the cover plate 38 to fit tightly and stably on the top of the water receiving cylinder 8.

[0053] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0054] 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 monitoring device for heavy metal pollution in water environment, characterized in that: The invention comprises a caisson (1), both sides of which are fixedly connected to a diversion slope (2), a water inlet (3) is provided through both ends of the caisson (1), the water inlet (3) and the diversion slope (2) are arranged through each other, a filter screen (4) is rotatably connected inside the water inlet (3), a downpipe (5) is connected to the bottom of the middle part of the water inlet (3), a water injection head (6) is arranged at the bottom end of the downpipe (5), a rotating disk (7) is rotatably connected inside the caisson (1), a water receiving cylinder (8) is plugged into the top of the rotating disk (7), and the water injection port can be plugged into the top of the water receiving cylinder (8), and also comprises: A blocking mechanism (9), wherein the blocking mechanism (9) is slidably connected to the interior of the caisson (1), and the blocking mechanism (9) is slidably connected to the water inlet (3), and the blocking mechanism (9) is used to block both ends of the water inlet (3); A water pushing mechanism (10), wherein the water pushing mechanism (10) is slidably connected to the inside of the blocking mechanism (9), and the water pushing mechanism (10) is used to push the water flow inside the blocked water inlet (3); A scraping mechanism (11), the scraping mechanism (11) being rotatably connected to the surface of the filter screen (4), and the scraping mechanism (11) being used to clean impurities on the surface of the filter screen (4); A negative pressure mechanism (12), wherein the negative pressure mechanism (12) is arranged inside the caisson (1), and one end of the negative pressure mechanism (12) is connected to one side of the water inlet (3), and the negative pressure mechanism (12) is used to flush the filter screen (4); and an air guide mechanism (13), wherein the air guide mechanism (13) is arranged inside the caisson (1), and the air guide mechanism (13) is used to blow and clean the filter screen (4).

2. A monitoring device for heavy metal pollution in water environment according to claim 1, characterized in that: The plugging mechanism (9) comprises two connecting tubes (901) and two connecting frames (902). The connecting tubes (901) and the connecting frames (902) are both slidably connected to the interior of the caisson (1). The connecting tube (901) is located at the top of the water inlet (3), and the connecting tube (901) can enter the water inlet (3) from the top of the water inlet (3). The top of the connecting tube (901) is fixedly connected to the connecting frame (902). A connecting strip is fixedly connected between the two connecting frames (902). (14), the connecting strip (14) is located above the two connecting tubes (901), the bottom of one of the connecting frames (902) is fixedly connected to a cylinder (15), the cylinder (15) is fixedly connected to the inside of the caisson (1), and the inside of the caisson (1) and the two sides of the bottom of the connecting tube (901) are symmetrically slidably connected with a closing block (16), the surface of the closing block (16) is fixedly connected to a top spring (17), and the other end of the top spring (17) is fixedly connected to the inside of the caisson (1).

3. A monitoring device for heavy metal pollution in water environment according to claim 2, characterized in that: The water pushing mechanism (10) comprises a telescopic rod (101) and a push plate (102), wherein the telescopic rod (101) is fixedly connected to the inside of the connecting tube (901), the output end of the telescopic rod (101) is interpenetrated with one end of the connecting tube (901), and the end of the telescopic rod (101) that passes through the outside of the connecting tube (901) is fixedly connected to the push plate (102), the push plate (102) is slidably connected to the inside of the water inlet (3), and the radius of the push plate (102) matches the radius of the water inlet (3), and the two push plates (102) slide in opposite directions.

4. The monitoring device for heavy metal pollution in water environment according to claim 1, characterized in that: The scraping mechanism (11) comprises a lever (111), a guide tooth (112) and two guide wheels (113); the lever (111) is rotatably connected to the surface of the filter screen (4); the guide tooth (112) is fixedly connected to one side of the lever (111), and the guide tooth (112) is rotatably connected to the inside of the caisson (1); a toothed ring (18) is fixedly connected to the surface of the filter screen (4); the toothed ring (18) is meshed with the guide tooth (112); the two guide wheels (113) are distributed up and down; the upper guide wheel (113) is fixedly connected to the guide tooth (112); A servo motor (19) is fixedly connected to the interior of the caisson (1), both ends of the servo motor (19) are fixedly connected to the guide wheel (113) below via a coupling, the two guide wheels (113) are connected via a belt drive, a cleaning head (20) is fixedly connected to the surface of the connecting cylinder (901) away from the push plate (102), a brush plate (21) is provided on the side of the cleaning head (20) close to the filter screen (4), a through hole (22) is provided through the surface of the brush plate (21), and the through hole (22) is provided through the interior of the cleaning head (20).

5. The monitoring device for heavy metal pollution in water environment according to claim 1, characterized in that: The negative pressure mechanism (12) comprises two water inlet channels (121) and two sealing blocks (122). The two water inlet channels (121) are symmetrically arranged on both sides of the surface of the caisson (1), and one end of the water inlet channel (121) is arranged to penetrate the water inlet (3). A connecting groove (23) is arranged inside the connecting tube (901). The two sealing blocks (122) are symmetrically rotatably connected to the inside of the connecting groove (23). The two ends of the connecting groove (23) are respectively connected to the water inlet (3) and the cleaning head (20). The interior is connected, a connecting head (24) is fixedly connected to the top of the sealing block (122), the connecting head (24) is rotatably connected to the interior of the connecting tube (901), a coil spring (25) is fixedly connected to one side of the surface of the connecting head (24), the other end of the coil spring (25) is fixedly connected to the interior of the connecting tube (901), and a pressure block (26) is elastically rotatably connected to the interior of the water inlet (121) near one end of the water inlet (3), and the pressure block (26) can block the water inlet (121).

6. A monitoring device for heavy metal pollution in water environment according to claim 5, characterized in that: The air guide mechanism (13) comprises a connecting plate (131) and two conduits (132), wherein the connecting plate (131) is fixedly connected to the bottom of the water injection head (6), the top of the connecting plate (131) is fixedly connected to a telescopic tube (27), the other end of the telescopic tube (27) is connected to the bottom end of the downpipe (5), the two conduits (132) are symmetrically connected to the two sides of the top of the connecting plate (131), the two conduits (132) are slidably connected to the inside of the caisson (1), the other end of the conduits (132) is connected to the bottom of the water inlet (3), and the water inlet Vents (28) are provided on both sides of the bottom of the inner wall of the opening (3), and a baffle (29) is elastically rotatably connected inside the vent (28). A connecting port (30) is provided through the bottom of the inner wall of the connecting groove (23), and the connecting port (30) is communicated with the vent (28), and the connecting port (30) is located on one side of the sealing block (122). Two limit blocks (31) are fixedly connected inside the water inlet (121) and the vent (28), and the two limit blocks (31) are staggeredly distributed on both sides of the pressure block (26) and the baffle (29).

7. A monitoring device for heavy metal pollution in water environment according to claim 2, characterized in that: A pull rod (32) is hinged in the middle of one of the connecting frames (902), and a gear rod (33) is hinged at the other end of the pull rod (32). The gear rod (33) is slidably connected to the inside of the caisson (1). A ratchet (34) is fixedly connected to the bottom of the turntable (7). A gear sleeve (35) is unidirectionally meshed on the surface of the ratchet (34). The gear sleeve (35) is rotatably connected to the inside of the caisson (1). The gear rod (33) meshes with the gear sleeve (35). A connecting block (36) is fixedly connected to one side of the water injection head (6), and the other end of the connecting block (36) is fixedly connected to one of the connecting frames (902).

8. The monitoring device for heavy metal pollution in water environment according to claim 1, characterized in that: A connection box (37) is plugged into one side of the caisson (1), a plurality of cover plates (38) are arranged vertically inside the connection box (37), an elastic top plate (39) is fixedly connected inside the connection box (37), the elastic top plate (39) is slidably connected to the top of the cover plate (38), two connection seats (40) are symmetrically fixedly connected to the surface of the water receiving cylinder (8), a spring block (41) is arranged inside the connection seat (40), and the spring block (41) is clamped with the cover plate (38) after the cover plate (38) and the water receiving cylinder (8) are slidably closed.

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