Device for monitoring and evaluating heavy metal pollution risk by utilizing benthic bivalve mollusks

Abstract

The invention provides a device for monitoring and evaluating heavy metal pollution risk by utilizing benthic bivalve mollusks, belongs to the technical field of seawater detection, and solves the technical problem that seawater in a deep sea area is difficult to monitor and evaluate in real time in the prior art. A device for monitoring and evaluating heavy metal pollution risks by utilizing benthic bivalve mollusks comprises a floating frame and a sinking frame arranged at the bottom of the floating frame, a plurality of air bags are fixed to the floating frame, a plurality of winding assemblies are arranged on the floating frame, a plurality of mooring ropes are arranged on the floating frame, the mooring ropes are connected with the corresponding winding assemblies, and the sinking frame is arranged on the floating frame. A connecting rope is connected between the floating frame and the sinking frame, a length adjusting assembly is arranged in the floating frame, and the length adjusting assembly is connected with the connecting rope. The method has the advantage that the heavy metal pollution risk of the deep seawater is evaluated and detected by utilizing the benthic bivalve mollusks.

Description

Technical Field

[0001] The invention belongs to the technical field of seawater detection, and relates to a device for monitoring and evaluating the risk of heavy metal pollution, in particular to a device for monitoring and evaluating the risk of heavy metal pollution using benthic bivalve molluscs. Background Art

[0002] About 80% of the world's coastal waters are polluted, and heavy metal pollution is receiving more and more attention. The discharge of industrial sewage, mining wastewater, the loss of heavy metal pesticides, and the heavy metals released during the combustion of coal and oil are transported into the ocean through the atmosphere, all of which have led to more serious heavy metal pollution in the ocean. It is estimated that more than 3,000 tons of mercury enter the ocean every year due to mineral combustion. In addition, mercury-containing slag and slurry also release some mercury into the ocean. As a result, about 10,000 tons of mercury enter the ocean every year due to human activities, which is equivalent to the annual production of mercury in the world today. Since the use of tetraethyl lead as a gasoline anti-knock agent in 1924, the concentration of lead in the atmosphere has increased rapidly. Lead transported through the atmosphere is an important way to pollute the ocean. The lead, zinc, cadmium, mercury and selenium carried into the open ocean by aerosols are 50% more than the total amount of land input.

[0003] The sea area is polluted by heavy metals, and it is difficult to control. Prevention should be the main measure. Regular monitoring and surveillance of the sea area is an important measure to prevent the sea area from being polluted. Mussel monitoring is a monitoring method that uses the residual amount of pollutants in bivalve mollusks (mainly mussels and oysters) to monitor and evaluate the status of marine chemical pollution and the spatial and temporal distribution trends of chemical concentration fields. Mussels and oysters are nearshore benthic animals widely distributed in the world and are also important marine economic species. They live in the benthic fixed life and have a high accumulation capacity for heavy metals and radioactive elements. They are good indicator organisms for biological monitoring of nearshore marine environmental pollution. By measuring the content of pollutants in their bodies, the pollution status of water bodies and sediments can be effectively indicated.

[0004] After searching, it is found that Chinese patent documents disclose an artificial bionic mussel method and device for detecting heavy metal pollution in seawater [Application No.: 201610860673.3; Publication No.: CN 106370611 A]. An artificial bionic mussel method and device for detecting heavy metal pollution in seawater, the method comprising the following steps: Step S1: prepare a transparent non-permeable organic glass tube; Step S2: suspend 350 mg of suspended matter in a transparent non-permeable organic glass tube with 14 ml of artificial seawater; Step S3: cover both ends of the transparent non-permeable organic glass tube in Step S2 with a layer of gel with a thickness of 1 cm; Step S4: install perforated plastic caps on the top of both ends of the transparent non-permeable organic glass tube in Step S3; Step S5: fix the glass tube obtained in Step S4 in a stainless steel filter screen cylinder; Step S6: seal the filter screen cylinder obtained in Step S5 with a gauze and place it in a seawater sample for monitoring; Step S7: analyze the heavy metal content in seawater by atomic absorption method. Its advantages are: simple production, convenient hanging sampling, not limited by natural conditions, the measured data has higher comparability, good application prospects, and can effectively monitor marine heavy metal pollutants.

[0005] Although this patent is not restricted by natural conditions, the measured data has higher comparability and good application prospects, and can effectively monitor marine heavy metal pollutants. However, the patent's method of adsorbing heavy metals through artificial bionic mussels cannot be directly put into the sea for water quality monitoring. It is necessary to sample seawater from the target sea area for testing, resulting in low monitoring efficiency. In addition, the method of sampling seawater from the target sea area can only detect the heavy metal content of surface seawater, and it is not easy to monitor and evaluate the seawater in deep sea areas in real time. Summary of the invention

[0006] The purpose of the present invention is to address the above-mentioned problems in the existing technology and to propose a device for monitoring and evaluating the risk of heavy metal pollution using benthic bivalve molluscs. The technical problem to be solved by the invention is: how to evaluate and detect the risk of heavy metal pollution in deep seawater using benthic bivalve molluscs.

[0007] The purpose of the present invention can be achieved by the following technical solutions: A device for monitoring and assessing heavy metal pollution risks using benthic bivalve molluscs, comprising a floating frame and a bottom frame arranged at the bottom of the floating frame, a plurality of air bags being fixed on the floating frame, a plurality of winding assemblies being arranged on the floating frame, a plurality of cables being arranged on the floating frame, the plurality of cables being connected to corresponding winding assemblies, a connecting rope being connected between the floating frame and the bottom frame, a length adjustment assembly being arranged in the floating frame, the length adjustment assembly being connected to the connecting rope, a power distribution assembly being arranged in the floating frame, the power distribution assembly being connected to the winding assembly and the length adjustment assembly, The bottom frame is connected with the floating frame, a plurality of launching frames arranged in an annular manner are rotatably provided on the bottom frame, and a stabilizing rod is slidably connected in each launching frame, a launching assembly for launching the corresponding stabilizing rod is provided in each launching frame, an angle adjustment assembly for controlling the rotation of each launching frame is provided in the bottom frame, and a pair of hooks are rotatably connected on each stabilizing rod, and an extension assembly for controlling the extension of two hooks is provided in each stabilizing rod, a breeding cage is fixed on the bottom frame, a fixed plug rod is fixed on the bottom surface of the bottom frame, and a warning light is fixed on the floating frame.

[0008] The working principle of the present invention is as follows: the floating frame can float on the sea surface, so that the monitoring personnel can understand the position of the present invention in the sea. By placing benthic bivalve molluscs in the breeding cage and throwing the bottom frame to the monitored sea surface, the bottom frame will continue to sink until it sinks to the seabed of the monitored sea area. At this time, the angle adjustment component controls the rotation of multiple launching frames until they are rotated to a suitable angle. At this time, the spring assembly will be triggered, and the stabilizing hanging rod in the launching frame will be ejected from the launching frame and diffuse to the surrounding sea area. When the stabilizing hanging rod is launched, the extension component will control the two hooks in the stabilizing hanging rod to unfold, so as to better snap and fix with the surrounding reefs, corals, mud and other structures to prevent the bottom frame from moving due to tidal movement and other factors, thereby improving the monitoring effect. In the sinking process of the bottom frame, the length of the connecting rope can be controlled by the length adjustment component according to the depth of the seabed, so as to limit the movement range of the floating frame and improve the position of the personnel on the sea surface. The observation accuracy is improved, and a plurality of cables are set up for sea mussels to attach and live, so that in actual use, not only can the seabed pollution risk be evaluated by monitoring and evaluating benthic bivalve mollusks, but also the pollution risk of the sea surface can be evaluated by monitoring and evaluating benthic bivalve mollusks, thereby improving the monitoring range. When collecting mussels on the cable, a net basket for storing mussels can be fixed at the bottom of the floating frame. At this time, the power distribution component is connected to the reeling component to continuously reel in the cable. During the reeling process, the mussels attached to the cable are squeezed into the net basket for storing mussels by the floating frame structure, thereby improving the collection efficiency. When it is necessary to collect benthic bivalve mollusks in the breeding cages, the divers destroy the various stabilizing hanging rods, and then connect the length adjustment component through the power distribution component, and collect the bottom frame to the sea surface through the length adjustment component, so that the personnel can collect and analyze the benthic bivalve mollusks in the breeding cages, thereby completing the assessment and detection of heavy metal pollution risks.

[0009] The power distribution assembly includes a driving sleeve rotatably connected in a floating frame, a guide slide groove is provided in the driving sleeve, and an operating rod is slidably connected in the guide slide groove, and a pair of sliding buckle grooves 1 are provided in the bottom groove wall of the guide slide groove, a pair of sliding buckle blocks are fixed to the bottom end of the operating rod, the two sliding buckle blocks are slidingly matched with the corresponding sliding buckle grooves 1, and a transmission bevel gear 1 is coaxially fixed on the driving sleeve, the transmission bevel gear 1 is connected to the winding assembly, and a transmission gear 1 located directly below the transmission bevel gear 1 is rotatably connected in the floating frame, and a buckle groove is provided on the transmission gear 1, the buckle groove is buckled with the two sliding buckle blocks, and the transmission gear 1 is connected to the length adjustment assembly.

[0010] By adopting the above structure, the operating rod can be pressed down to make the sliding buckle block and the locking groove engage with each other. At this time, rotating the operating rod will drive the transmission gear 1 to rotate, and the rotation of the transmission gear will drive the corresponding length adjustment component to move. When the operating rod is lifted, the sliding buckle block will engage with the sliding buckle groove 1. At this time, rotating the operating rod will drive the transmission bevel gear 1 to rotate, and the rotation of the transmission bevel gear will drive the corresponding winding component to operate, thereby realizing the power distribution capability and improving the overall use efficiency.

[0011] The winding assembly includes four winding chambers opened in the floating frame, and a winding rod rotatably connected in each winding chamber. The floating frame is provided with four winding openings connected to the corresponding winding chambers. Four cables pass through the corresponding winding openings and are fixedly connected to the corresponding winding rods. Four transmission bevel gears 2 are rotatably connected in the floating frame, and the four transmission bevel gears 2 are meshed with the transmission bevel gear 1, and the four transmission bevel gears 2 are coaxially fixedly connected to the corresponding winding rods.

[0012] By adopting the above structure, the transmission bevel gear 1 can drive the four transmission bevel gears 2 to rotate. After the four transmission bevel gears 2 rotate, they will drive the corresponding reeling rods to rotate. After the four reeling rods rotate, they will reel in or release the corresponding cables. When reeling in, the mussels on the cables will be squeezed off, and when releasing the cables, the mussel attachment area will be increased.

[0013] The length adjustment component includes an adjustment cavity opened at the bottom of the floating frame, an adjustment wheel rotatably connected in the adjustment cavity, the top end of the connecting rope is fixedly connected to the adjustment wheel, and a transmission gear 2 is rotatably connected in the floating frame, a transmission toothed belt is connected between the transmission gear 2 and the transmission gear 1, and a transmission worm is coaxially fixedly connected to the transmission gear 2, a transmission worm wheel is rotatably connected in the floating frame, the transmission worm wheel is meshed with the transmission worm, and the transmission worm wheel and the adjustment wheel are coaxially fixedly connected.

[0014] By adopting the above structure, the transmission gear 1 can drive the transmission gear 2 to rotate. When the transmission gear 2 rotates, it will drive the transmission worm to rotate through the transmission belt. When the transmission worm rotates, it will drive the transmission worm wheel to rotate. When the transmission worm wheel rotates, it will drive the adjusting wheel to rotate. When the adjusting wheel rotates, it will reel in or release the connecting rope, so as to adjust the distance between the submerged frame and the floating frame.

[0015] A plurality of adjustment slots are provided on the bottom frame, and the plurality of launch racks are rotatably connected to the corresponding adjustment slots, and a torsion spring is provided on the rotating shaft of the plurality of launch racks, one end of the plurality of torsion springs is fixedly connected to the slot wall of the corresponding adjustment slot, and the other end of the plurality of torsion springs is fixedly connected to the corresponding launching rack rotating shaft, and a trigger block is fixed in each adjustment slot and penetrates into the rotating part of the corresponding launching rack, and the trigger block is connected to the spring-launching assembly.

[0016] By adopting the above structure, the trigger block can be used to drive the launching assembly to operate during the rotation of the launching frame, and the angle adjustment assembly can be used to realize the ability of automatically launching the stabilizing hanging rod after the bottom frame touches the bottom, and the torsion spring can be used to maintain the storage state when the launching frame is not subjected to external force.

[0017] The angle adjustment assembly includes an adjustment slot opened in the bottom frame, an adjustment slider slidably connected in the adjustment slot, and multiple traction ropes are fixed to the bottom surface of the adjustment slider, the other ends of the multiple traction ropes are fixedly connected to the outer wall of the corresponding launching frame, and a push spring is fixed between the top of the adjustment slider and the slot wall of the adjustment slot, and the top surface of the adjustment slider is fixedly connected to the bottom end of the connecting rope.

[0018] By adopting the above structure, the push spring can be used to push the adjustment slider, so that before the bottom frame touches the bottom, the traction rope will not pull the launching frame to adjust the angle. After the bottom frame touches the bottom, the bottom end of the connecting rope pulls the adjustment slider to lift it, so that the adjustment slider further pulls each traction rope, so that each launching frame rotates, thereby adjusting to a suitable angle and improving the launching effect.

[0019] The launching assembly includes a regulating bevel gear 1 which is rotatably connected in each launching rack and a regulating bevel gear 2 which is fixedly connected to each triggering block. Each regulating bevel gear 1 is meshed with the corresponding regulating bevel gear 2, and a threaded cylinder is coaxially fixed on each regulating bevel gear 1. A limit frame is fixed in each launching rack, and a launching block is guided and slidably connected in each limit frame. The bottom end of each launching block is threadedly connected to the corresponding threaded cylinder, and the top surface of each launching block is in contact with the bottom end of the corresponding stabilizing hanging rod. A pair of elastic ropes are fixed to the top of the inner wall of each launching rack, and the bottom end of each pair of elastic ropes is fixedly connected to the corresponding launching block.

[0020] By adopting the above structure, when the launching frame rotates, since the trigger block remains stationary, the regulating bevel gear 1 rotates as a whole, but the regulating bevel gear 1 is meshed with the stationary regulating bevel gear 2, so that the regulating bevel gear 1 is driven to rotate. Through this rotation, the threaded barrel is driven to rotate. After the threaded barrel rotates, it will be disengaged from the threaded connection with the launching block, so that the launching block loses its restriction. At this time, the elastic rope releases the elastic force to launch the stabilizing hanging rod.

[0021] The extension component includes a stabilizing rope slidably connected in each stabilizing hanging rod, and one end of each stabilizing rope is divided into two thin ropes and fixedly connected to a corresponding pair of hook rotation points, and a storage cavity is opened in each launching frame, and the other end of each stabilizing rope is coiled in the storage cavity and fixedly connected to the inner wall of the storage cavity.

[0022] With the above structure, when the stable hanging rod is elastically launched to the limit of the length of the stable rope, one end of the stable rope pulls the two hooks to unfold, thereby improving the effect of the hook. A pair of pushing cavities are provided in each of the stable hanging rods, and a limiting block is slidably connected in each pair of pushing cavities. A limiting spring is fixed between each pair of limiting blocks and the bottom of the corresponding pushing cavity, and one end of each pair of limiting blocks is limitedly matched with the corresponding hook.

[0023] With the above structure, the limit block can be ejected by the limit spring after the hook is unfolded, so that the limit block and the hook are mutually limited to prevent the hook from retracting after unfolding, thereby maintaining the effect of fixing the hook.

[0024] The gear train is a gear that is engaged with the gears of the control wheel and the control wheel, and the gear train is a gear that is engaged with the gears of the control wheel and the control wheel. The gear train is a gear that is engaged with the gears of the control wheel and the control wheel. The gear train is a gear that is engaged with the gears of the control wheel and the control wheel.

[0025] By adopting the above structure, when the fixed rod contacts the seabed, the weight of the bottom frame and the aquaculture cage can be used to insert the fixed rod into the seabed. At this time, the length of the connecting rope reaches the limit, and the regulating slider is pulled up. During the lifting process of the regulating slider, it contacts the two adjusting wheels and drives the two adjusting wheels to rotate. After the two adjusting wheels rotate, the corresponding transmission bevel gear three will be driven to rotate. After the transmission bevel gear three rotates, the corresponding transmission bevel gear four will be driven to rotate. After the two transmission bevel gears four rotate, the corresponding threaded blocks will be driven to rotate. The threaded blocks are disengaged from the threaded connection with the connecting block. At this time, the gravity block loses its restriction and falls down. During the falling process, it drives the pressure block to be pressed into the pressure groove, so that the two L-shaped plates are squeezed and unfolded, thereby increasing the contact effect between the fixed rod and the seabed.

[0026] Compared with the prior art, the device for monitoring and assessing the risk of heavy metal pollution using benthic bivalve molluscs has the following advantages: 1. The floating frame floats on the sea surface, which makes it convenient for monitoring personnel to understand the position of the present invention in the sea. By placing benthic bivalve molluscs in the breeding cages and throwing the bottom frame to the monitored sea surface, the bottom frame continues to sink until it sinks to the seabed of the monitored sea area. At this time, the angle adjustment component controls the rotation of multiple launch frames until they rotate to a suitable angle. At this time, the spring assembly will be triggered, and the stabilizing hanging rod in the launch frame will be ejected from the launch frame and diffuse to the surrounding sea area. When the stabilizing hanging rod is launched, the extension component will control the two hooks in the stabilizing hanging rod to unfold, so as to better buckle and fix with the surrounding reefs, corals, mud and other structures to prevent the bottom frame from moving due to factors such as tidal movement, thereby improving the monitoring effect.

[0027] 2. During the sinking process of the bottom frame, the length of the connecting rope can be controlled by the length adjustment component according to the depth of the seabed, so as to limit the movement range of the floating frame and improve the accuracy of observation of the personnel's position on the sea surface.

[0028] 3. By setting up multiple cables for sea mussels to attach and live, in actual use, not only can the risk of seabed pollution be assessed by monitoring and evaluating benthic bivalve molluscs, but also the risk of sea surface pollution can be assessed by monitoring and evaluating benthic bivalve molluscs, thereby increasing the monitoring range.

[0029] 4. When collecting mussels on the cable, a net basket for storing mussels can be fixed at the bottom of the floating frame. At this time, the reeling assembly is connected through the power distribution assembly to continuously reel in the cable. During the reeling process, the mussels attached to the cable are squeezed into the net basket for storing mussels by the floating frame structure, thereby improving the collection efficiency.

[0030] 5. When it is necessary to collect benthic bivalve molluscs in the breeding cages, the divers will destroy the stabilizing hanging rods, connect the length adjustment assembly through the power distribution assembly, and collect the bottom frame to the sea surface through the length adjustment assembly, so as to facilitate the collection and analysis of benthic bivalve molluscs in the breeding cages, thereby completing the assessment and detection of heavy metal pollution risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention.

[0032] Figure 2 It is a structural schematic diagram of the reeling assembly in the present invention.

[0033] Figure 3 It is a schematic diagram of the structure inside the floating frame of the present invention.

[0034] Figure 4 It is a structural schematic diagram of the angle adjustment component in the present invention.

[0035] Figure 5 It is a structural schematic diagram of the hook storage state in the present invention.

[0036] Figure 6 It is a structural schematic diagram of the hook in the unfolded state in the present invention.

[0037] Figure 7 It is a structural schematic diagram of the firing assembly of the present invention.

[0038] Figure 8 It is a structural schematic diagram of the connection state between the trigger block and the spring assembly in the present invention.

[0039] Fig. 9 It is a structural schematic diagram of the buckle fitting between the sliding buckle block and the buckle slot in the present invention.

[0040] Fig.10 It is a structural schematic diagram of the sliding buckle block and the sliding buckle groove 1 in the present invention.

[0041] Fig.11 It is a structural schematic diagram of the storage state of the limit block in the present invention.

[0042] Fig.12 It is a schematic diagram of the operating structure of the adjusting wheel in the present invention.

[0043] Fig.13 It is a schematic diagram of the structure of the fixed insertion rod inserted into the seabed in the present invention.

[0044] Fig.14 It is a schematic diagram of the structure after the fixed insertion rod of the present invention is inserted into the seabed and unfolded.

[0045] In the figure, 1, floating frame; 2, bottom frame; 3, airbag; 4, cable; 5, connecting rope; 6, launching frame; 7, stabilizing hanging rod; 8, hook; 9, breeding cage; 10, fixed plug rod; 11, driving sleeve; 12, guide slide groove; 13, operating rod; 14, slide buckle groove 1; 15, slide buckle block; 16, transmission bevel gear 1; 17, transmission gear 1; 18, plug buckle groove; 19, rewinding chamber; 20, rewinding rod; 21, rewinding mouth; 22, transmission bevel gear 2; 23, adjusting chamber; 24, adjusting wheel; 25, transmission gear 2; 26, transmission toothed belt; 27, transmission worm; 28, transmission worm wheel ; 29. ​​Adjustment slot; 30. Adjustment slide slot; 31. Adjustment slider; 32. Pull rope; 33. Push spring; 34. Adjustment bevel gear one; 35. Adjustment bevel gear two; 36. Threaded cylinder; 37. Limit frame; 38. Spring block; 39. Elastic rope; 40. Stabilization rope; 41. Storage chamber; 42. Push chamber; 43. Limit block; 44. Limit spring; 45. Warning light; 46. Trigger block; 47. Adjustment wheel; 48. Transmission bevel gear three; 49. Transmission bevel gear four; 50. Threaded block; 51. Connecting block; 52. Gravity block; 53. Pressing block; 54. Pressing slot; 55. L-shaped plate. DETAILED DESCRIPTION

[0046] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0047] like Figure 1-Figure 14 As shown, a device for monitoring and assessing the risk of heavy metal pollution by using benthic bivalve molluscs comprises a floating frame 1, a bottom frame 2 arranged at the bottom of the floating frame 1, a plurality of air bags 3 are fixed on the floating frame 1, a plurality of winding assemblies are arranged on the floating frame 1, a plurality of cables 4 are arranged on the floating frame 1, the plurality of cables 4 are connected to the corresponding winding assemblies, a connecting rope 5 is connected between the floating frame 1 and the bottom frame 2, a length adjustment assembly is arranged in the floating frame 1, the length adjustment assembly is connected to the connecting rope 5, a power distribution assembly is arranged in the floating frame 1, the power distribution assembly is connected to the winding assembly and the length adjustment assembly The bottom frame 2 is connected in rows, and a plurality of launching frames 6 arranged in an annular manner are rotatably provided on the bottom frame 2, and a stabilizing hanging rod 7 is slidably connected in each launching frame 6, and a launching component for launching the corresponding stabilizing hanging rod 7 is provided in each launching frame 6, and an angle adjustment component for controlling the rotation of each launching frame 6 is provided in the bottom frame 2, and a pair of hooks 8 are rotatably connected on each stabilizing hanging rod 7, and an extension component for controlling the extension of the two hooks 8 is provided in each stabilizing hanging rod 7, a breeding cage 9 is fixed on the bottom frame 2, and a fixed plug rod 10 is fixed on the bottom surface of the bottom frame 2, and a warning light 45 is fixed on the floating frame 1.

[0048] The floating frame 1 can float on the sea surface, which is convenient for monitoring personnel to understand the position of the present invention in the sea. By placing benthic bivalve shellfish in the breeding cage 9 and throwing the bottom frame 2 to the monitored sea surface, the bottom frame 2 continues to sink until it sinks to the seabed of the monitored sea area. At this time, the angle adjustment component controls the rotation of multiple launching frames 6 until they are rotated to a suitable angle. At this time, the spring assembly will be triggered, and the stabilizing hanging rod 7 in the launching frame 6 will be ejected from the launching frame 6 and diffuse to the surrounding sea area. When the stabilizing hanging rod 7 is fired, the extension component will control the two hooks 8 in the stabilizing hanging rod 7 to unfold, so as to better snap and fix with the reefs, corals, mud and other structures in the surrounding environment, prevent the bottom frame 2 from moving due to factors such as tidal movement, improve the monitoring effect, and during the sinking process of the bottom frame 2, the length of the connecting rope 5 can be controlled by the length adjustment component according to the depth of the seabed, so as to limit the movement range of the floating frame 1 and improve the personnel's position observation accuracy on the sea surface. The cable 4 is provided with a plurality of cables 4 for the attachment and habitat of mussels in the sea, so that in actual use, not only can the bottom pollution risk be evaluated by monitoring and evaluating benthic bivalve mollusks, but also the pollution risk of the sea surface can be evaluated by monitoring and evaluating benthic bivalve mollusks, thereby improving the monitoring range. When collecting mussels on the cable 4, a net basket for storing mussels can be fixed at the bottom of the floating frame 1. At this time, the power distribution component is connected to the reeling component to continuously reel in the cable 4. During the reeling process, the mussels attached to the cable 4 are squeezed into the net basket for storing mussels by the floating frame 1 structure, thereby improving the collection efficiency. When it is necessary to collect the benthic bivalve mollusks in the aquaculture cage 9, the divers destroy the various stabilizing hanging rods 7, and then connect the length adjustment component through the power distribution component. The bottom frame 2 is collected to the sea surface through the length adjustment component, so that the personnel can collect and analyze the benthic bivalve mollusks in the aquaculture cage 9, thereby completing the assessment and detection of heavy metal pollution risks.

[0049] The power distribution assembly includes a driving sleeve 11 rotatably connected in the floating frame 1, a guide slot 12 is provided in the driving sleeve 11, and an operating rod 13 is slidably connected in the guide slot 12, and a pair of slide buckle slots 14 are provided on the bottom slot wall of the guide slot 12, a pair of slide buckle blocks 15 are fixed to the bottom end of the operating rod 13, and the two slide buckle blocks 15 are slide-matched with the corresponding slide buckle slots 14, and a transmission bevel gear 16 is coaxially fixed on the driving sleeve 11, and the transmission bevel gear 16 is connected to the winding assembly, and a transmission gear 17 located directly below the transmission bevel gear 16 is rotatably connected in the floating frame 1, and a buckle slot 18 is provided on the transmission gear 17, and the buckle slot 18 is buckled with the two slide buckle blocks 15, and the transmission gear 17 is connected to the length adjustment assembly.

[0050] By adopting the above structure, the operating rod 13 can be pressed down to make the sliding buckle block 15 engage with the locking groove 18. At this time, rotating the operating rod 13 will drive the transmission gear 17 to rotate. After the transmission gear 17 rotates, it will drive the corresponding length adjustment component to move, and the operating rod 13 will be lifted. At this time, the sliding buckle block 15 will engage with the sliding buckle groove 14. At this time, rotating the operating rod 13 will drive the transmission bevel gear 16 to rotate. After the transmission bevel gear 16 rotates, it will drive the corresponding winding component to operate, thereby realizing the power distribution capability and improving the overall use efficiency.

[0051] The winding assembly includes four winding chambers 19 opened in the floating frame 1, and a winding rod 20 rotatably connected in each winding chamber 19. The floating frame 1 is provided with four winding openings 21 connected to the corresponding winding chambers 19. The four cables 4 pass through the corresponding winding openings 21 and are fixedly connected to the corresponding winding rods 20. There are also four transmission bevel gears 22 rotatably connected in the floating frame 1. The four transmission bevel gears 22 are all meshed with the transmission bevel gear 1 16, and the four transmission bevel gears 22 are all coaxially fixedly connected to the corresponding winding rods 20.

[0052] With the above structure, the transmission bevel gear 1 16 can drive the four transmission bevel gears 2 22 to rotate. After the four transmission bevel gears 2 22 rotate, they will drive the corresponding reeling rods 20 to rotate. After the four reeling rods 20 rotate, they will reel in or release the corresponding cables 4. When reeling in, the mussels on the cables 4 will be squeezed off, and when the cables 4 are released, the mussel attachment area will be increased.

[0053] The length adjustment component includes an adjustment cavity 23 opened at the bottom of the floating frame 1, an adjustment wheel 24 rotatably connected in the adjustment cavity 23, the top of the connecting rope 5 is fixedly connected to the adjustment wheel 24, and a transmission gear 2 25 is rotatably connected in the floating frame 1, a transmission toothed belt 26 is connected between the transmission gear 25 and the transmission gear 1 17, and a transmission worm 27 is coaxially fixedly connected to the transmission gear 25, a transmission worm wheel 28 is rotatably connected in the floating frame 1, the transmission worm wheel 28 is meshed with the transmission worm 27, and the transmission worm wheel 28 is coaxially fixedly connected to the adjustment wheel 24.

[0054] By adopting the above structure, the transmission gear 1 17 can drive the transmission gear 2 25 to rotate. After the transmission gear 2 25 rotates, it will drive the transmission worm 27 to rotate through the transmission belt 26. After the transmission worm 27 rotates, it will drive the transmission worm wheel 28 to rotate. After the transmission worm wheel 28 rotates, it will drive the adjusting wheel 24 to rotate. After the adjusting wheel 24 rotates, it will reel in or release the connecting rope 5, so as to adjust the distance between the submerged frame 2 and the floating frame 1.

[0055] A plurality of adjustment slots 29 are provided on the bottom frame 2, and a plurality of launch frames 6 are rotatably connected to the corresponding adjustment slots 29, and a torsion spring 1 is provided on the rotating shaft of each of the plurality of launch frames 6, one end of each of the plurality of torsion springs 1 is fixedly connected to the slot wall of the corresponding adjustment slot 29, and the other end of each of the plurality of torsion springs 1 is fixedly connected to the rotating shaft of the corresponding launch frame 6, and a trigger block 46 is fixed in each of the adjustment slots 29 and penetrates into the rotating part of the corresponding launch frame 6, and the trigger block 46 is connected to the spring assembly.

[0056] By adopting the above structure, the trigger block 46 can be used to drive the launching assembly to operate during the rotation of the launching frame 6, and cooperate with the angle adjustment assembly to realize the ability of automatically launching the stabilizing hanging rod 7 after the bottom frame 2 touches the bottom, and the torsion spring 1 can maintain the storage state when the launching frame 6 is not subjected to external force.

[0057] The angle adjustment assembly includes an adjustment slot 30 opened in the bottom frame 2, an adjustment slider 31 slidably connected in the adjustment slot 30, and a plurality of traction ropes 32 are fixed to the bottom surface of the adjustment slider 31, the other ends of the plurality of traction ropes 32 are fixedly connected to the outer wall of the corresponding launching frame 6, and a push spring 33 is fixed between the top of the adjustment slider 31 and the slot wall of the adjustment slot 30, and the top surface of the adjustment slider 31 is fixedly connected to the bottom end of the connecting rope 5.

[0058] By adopting the above structure, the push spring 33 can push the adjusting slider 31, so that before the bottom frame 2 touches the bottom, the traction rope 32 will not pull the launching frame 6 to adjust the angle. After the bottom frame 2 touches the bottom, the bottom end of the connecting rope 5 pulls the adjusting slider 31 to lift, so that the adjusting slider 31 further pulls each traction rope 32, so that each launching frame 6 rotates, thereby adjusting to a suitable angle to improve the firing effect.

[0059] The spring-firing assembly includes a regulating bevel gear 1 34 rotatably connected to each launch rack 6 and a regulating bevel gear 2 35 fixedly connected to each trigger block 46, each regulating bevel gear 1 34 is meshed with the corresponding regulating bevel gear 2 35, and a threaded tube 36 is coaxially fixed on each regulating bevel gear 1 34, and a limit frame 37 is fixed in each launch rack 6, and a spring-firing block 38 is guided and slidably connected in each limit frame 37, the bottom end of each spring-firing block 38 is threadedly connected to the corresponding threaded tube 36, and the top surface of each spring-firing block 38 is in contact with the bottom end of the corresponding stabilizing hanging rod 7, and a pair of elastic ropes 39 are fixed to the top of the inner wall of each launch rack 6, and the bottom end of each pair of elastic ropes 39 is fixedly connected to the corresponding spring-firing block 38.

[0060] With the above structure, when the launching frame 6 rotates, since the trigger block 46 remains stationary, the regulating bevel gear 1 34 rotates as a whole, but the regulating bevel gear 1 34 is meshed with the stationary regulating bevel gear 2 35, so that the regulating bevel gear 1 34 is driven to rotate. Through this rotation, the threaded barrel 36 is driven to rotate. After the threaded barrel 36 rotates, it will be disengaged from the threaded connection with the ejection block 38, so that the ejection block 38 loses its restriction. At this time, the elastic rope 39 releases the elastic force to eject the stabilizing hanging rod 7.

[0061] The extension assembly includes a stabilizing rope 40 slidably connected in each stabilizing hanging rod 7, and one end of each stabilizing rope 40 is divided into two thin ropes and fixedly connected to the corresponding pair of hooks 8 at the rotating point, and a storage cavity 41 is opened in each launching frame 6, and the other end of each stabilizing rope 40 is coiled in the storage cavity 41 and fixedly connected to the inner wall of the storage cavity 41.

[0062] With the above structure, when the stabilizing hanging rod 7 is released to the limit of the length of the stabilizing rope 40, one end of the stabilizing rope 40 pulls the two hooks 8 to unfold, thereby improving the effect of the hook. A pair of pushing cavities 42 are provided in each stabilizing hanging rod 7, and a limiting block 43 is slidably connected in each pair of pushing cavities 42. A limiting spring 44 is fixed between each pair of limiting blocks 43 and the bottom of the corresponding pushing cavity 42, and one end of each pair of limiting blocks 43 is limitedly matched with the corresponding hook 8.

[0063] With the above structure, the limit block 43 can be ejected by the limit spring 44 after the hook 8 is unfolded, so that the limit block 43 and the hook 8 are mutually limited to prevent the hook 8 from retracting after being unfolded, thereby maintaining the effect of fixing the hook.

[0064] A pair of adjusting wheels 47 are rotatably connected in the bottom frame 2, a part of the wheel surfaces of the two adjusting wheels 47 are fitted with the adjusting slider 31, and the two adjusting wheels 47 are coaxially fixedly connected with a transmission bevel gear three 48, a pair of transmission bevel gear four 49 are rotatably connected in the bottom frame 2, the transmission bevel gear three 48 is meshed with the transmission bevel gear four 49, and a threaded block 50 is coaxially fixed on each transmission bevel gear four 49, a pair of connecting blocks 51 are slidably connected in the bottom frame 2, and the connecting blocks 51 are fixed with the threaded blocks 50. The pattern block 50 is threadedly connected, and a gravity block 52 is slidably connected inside the bottom frame 2, the top of the gravity block 52 is fixedly connected to the two connecting blocks 51, and a pressure block 53 is provided on the bottom surface of the bottom frame 2, the pressure block 53 is fixedly connected to the gravity block 52, and a pressing groove 54 is provided in the fixed plug rod 10, a pair of L-shaped plates 55 are rotatably connected to the fixed plug rod 10, and two torsion springs are provided at the rotating shafts of the two L-shaped plates 55, and the two L-shaped plates 55 are squeezed and matched with the pressure block 53.

[0065] By adopting the above structure, when the fixed rod 10 contacts the seabed, the weight of the bottom frame 2 and the breeding cage 9 can be used to insert the fixed rod 10 into the seabed. At this time, the length of the connecting rope 5 reaches the limit, and the regulating slider is pulled up. During the lifting process of the regulating slider, it contacts the two adjusting wheels 47 and drives the two adjusting wheels 47 to rotate. After the two adjusting wheels 47 rotate, the corresponding transmission bevel gear three 48 will be driven to rotate. After the transmission bevel gear three 48 rotates, the corresponding transmission bevel gear four 49 will be driven to rotate. After the two transmission bevel gears four 49 rotate, the corresponding threaded blocks 50 will be driven to rotate. The threaded block 50 is disengaged from the threaded connection with the connecting block 51. At this time, the gravity block 52 loses its restriction and falls down. During the falling process, it drives the pressing block 53 to be pressed into the pressing groove 54, so that the two L-shaped plates 55 are squeezed and unfolded, thereby increasing the contact effect between the fixed rod 10 and the seabed.

[0066] The working principle of the present invention is as follows: the floating frame 1 floats on the sea surface, so that the monitoring personnel can understand the position of the present invention in the sea. Then, the benthic bivalve shellfish are placed in the aquaculture cage 9, and the bottom frame 2 is thrown to the monitoring sea surface. The bottom frame 2 sinks continuously until it sinks to the seabed of the monitoring sea area. When the bottom frame 2 touches the bottom, the bottom end of the connecting rope 5 pulls the adjusting slider 31 to lift it, so that the adjusting slider 31 further pulls each traction rope 32, so that each launching frame 6 rotates. When the launching frame 6 rotates, the trigger block 46 remains stationary, and the regulating cone 31 is adjusted at this time. The gear 1 34 rotates as a whole, but the regulating bevel gear 1 34 meshes with the stationary regulating bevel gear 2 35, so that the regulating bevel gear 1 34 is driven to rotate, thereby driving the threaded barrel 36 to rotate through this rotation. After the threaded barrel 36 rotates, it will be separated from the threaded connection with the spring block 38, so that the spring block 38 loses its restriction. At this time, the elastic rope 39 releases the elastic force to spring the stabilizing hanging rod 7. When the stabilizing hanging rod 7 is spring-loaded to the length limit of the stabilizing rope 40, one end of the stabilizing rope 40 pulls the two hooks 8 to unfold, so that This improves the effect of the hook, so that it can be better buckled and fixed with the surrounding reefs, corals, mud and sand structures to prevent the bottom frame 2 from moving due to factors such as tidal movement. When it is necessary to collect the benthic bivalve shells in the breeding net cage 9, the diver will destroy each stabilizing hook 7, and press the operating rod 13 downward to make the sliding buckle block 15 and the buckle groove 18 buckle together. At this time, rotating the operating rod 13 will drive the transmission gear 1 17 to rotate, and the transmission gear 1 17 will drive the transmission gear 2 25 to rotate after the rotation. When the transmission gear 25 rotates, it will drive the transmission worm 27 to rotate through the transmission toothed belt 26. When the transmission worm 27 rotates, it will drive the transmission worm wheel 28 to rotate. When the transmission worm wheel 28 rotates, it will drive the adjusting wheel 24 to rotate. When the adjusting wheel 24 rotates, it will reel in or release the connecting rope 5, so as to adjust the distance between the bottom frame 2 and the floating frame 1, and thereby collect the bottom frame 2 to the sea surface, so as to facilitate personnel to collect and analyze the benthic bivalve molluscs in the breeding cage 9, so as to complete the assessment and detection of heavy metal pollution risks.

[0067] In summary, by floating on the sea surface, it is convenient for monitoring personnel to understand the position of the present invention in the sea, and by placing benthic bivalve molluscs in the breeding cage 9 and throwing the bottom frame 2 to the monitored sea surface, the bottom frame 2 continues to sink until it sinks to the seabed of the monitored sea area. At this time, the angle adjustment component controls the rotation of multiple launching frames 6 until they rotate to a suitable angle. At this time, the spring assembly will be triggered, and the stabilizing hanging rod 7 in the launching frame 6 will be ejected from the launching frame 6 and diffuse to the surrounding sea area. When the stabilizing hanging rod 7 is fired, the extension component will control the two hooks 8 in the stabilizing hanging rod 7 to unfold, so as to better snap and fix with the reefs, corals, mud and other structures in the surrounding environment, prevent the bottom frame 2 from moving due to factors such as tidal movement, improve the monitoring effect, and during the sinking process of the bottom frame 2, the length of the connecting rope 5 can be controlled by the length adjustment component according to the depth of the seabed, so as to limit the movement range of the floating frame 1 and improve the position observation of personnel on the sea surface. Precision, and through the provision of a plurality of cables 4, for the attachment and habitat of mussels in the sea, so that in actual use, not only can the seabed pollution risk be assessed by relying on the monitoring and assessment of benthic bivalve mollusks, but also the pollution risk of the sea surface can be assessed by relying on the monitoring and assessment of benthic bivalve mollusks, thereby improving the monitoring range. When collecting mussels on the cable 4, a net basket for storing mussels can be fixed at the bottom of the floating frame 1. At this time, the power distribution component is connected to the reeling component to continuously reel in the cable 4. During the reeling process, the mussels attached to the cable 4 are squeezed into the net basket for storing mussels by the floating frame 1 structure, thereby improving the collection efficiency. When it is necessary to collect the benthic bivalve mollusks in the aquaculture cage 9, the divers destroy the various stabilizing hanging rods 7, and then connect the length adjustment component through the power distribution component, and collect the bottom frame 2 to the sea surface through the length adjustment component, so that the personnel can collect and analyze the benthic bivalve mollusks in the aquaculture cage 9, thereby completing the assessment and detection of the heavy metal pollution risk.

[0068] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs, comprising a floating frame (1) and a sinking frame (2) arranged at the bottom of the floating frame (1), characterized in that: A plurality of air bags (3) are fixed on the floating frame (1), a plurality of reeling assemblies are arranged on the floating frame (1), a plurality of cables (4) are arranged on the floating frame (1), the plurality of cables (4) are connected to the corresponding reeling assemblies, a connecting rope (5) is connected between the floating frame (1) and the bottom frame (2), a length adjustment assembly is arranged inside the floating frame (1), the length adjustment assembly is connected to the connecting rope (5), a power distribution assembly is arranged inside the floating frame (1), the power distribution assembly is connected to the reeling assembly and the length adjustment assembly, and a plurality of annularly arranged launching frames (6) are rotatably arranged on the bottom frame (2) , and each launching frame (6) is slidably connected with a stabilizing rod (7), each launching frame (6) is provided with a launching assembly for launching the corresponding stabilizing rod (7), and the bottom frame (2) is provided with an angle adjustment assembly for controlling the rotation of each launching frame (6), and each stabilizing rod (7) is rotatably connected with a pair of hooks (8), and each stabilizing rod (7) is provided with an extension assembly for controlling the extension of the two hooks (8), a breeding cage (9) is fixed on the bottom frame (2), and a fixed plug rod (10) is fixed on the bottom surface of the bottom frame (2), and a warning light (45) is fixed on the floating frame (1).

2. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 1, characterized in that: The power distribution assembly comprises a driving sleeve (11) rotatably connected in a floating frame (1), a guide slot (12) is provided in the driving sleeve (11), an operating rod (13) is slidably connected in the guide slot (12), a pair of sliding buckle slots (14) are provided on the bottom slot wall of the guide slot (12), a pair of sliding buckle blocks (15) are fixed at the bottom end of the operating rod (13), and the two sliding buckle blocks (15) are slidably buckled with the corresponding sliding buckle slots (14). The driving sleeve (11) is coaxially fixed with a transmission bevel gear (16), which is connected to the winding assembly, and a transmission gear (17) located directly below the transmission bevel gear (16) is rotatably connected in the floating frame (1), and a buckle slot (18) is provided on the transmission gear (17), which is buckled with the two sliding buckle blocks (15), and the transmission gear (17) is connected to the length adjustment assembly.

3. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 1, characterized in that: The reeling assembly comprises four reeling chambers (19) provided in a floating frame (1), a reeling rod (20) rotatably connected in each reeling chamber (19), four reeling openings (21) communicating with corresponding reeling chambers (19) provided on the floating frame (1), four cables (4) passing through corresponding reeling openings (21) and being fixedly connected with corresponding reeling rods (20), and four transmission bevel gears (22) rotatably connected in the floating frame (1), the four transmission bevel gears (22) being meshed with the transmission bevel gear (16), and the four transmission bevel gears (22) being coaxially fixedly connected with the corresponding reeling rods (20).

4. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 1, characterized in that: The length adjustment component comprises an adjustment cavity (23) provided at the bottom of the floating frame (1), an adjustment wheel (24) rotatably connected in the adjustment cavity (23), the top end of the connection rope (5) being fixedly connected to the adjustment wheel (24), a transmission gear 2 (25) being rotatably connected in the floating frame (1), a transmission toothed belt (26) being connected between the transmission gear 2 (25) and the transmission gear 1 (17), a transmission worm (27) being coaxially fixedly connected to the transmission gear 2 (25), a transmission worm wheel (28) being rotatably connected in the floating frame (1), the transmission worm wheel (28) being meshed with the transmission worm (27), and the transmission worm wheel (28) being coaxially fixedly connected to the adjustment wheel (24).

5. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 1, characterized in that: The sinking frame (2) is provided with a plurality of adjustment slots (29), and the plurality of launching frames (6) are all rotatably connected to the corresponding adjustment slots (29), and a torsion spring is arranged on the rotating shaft of the plurality of launching frames (6), and a trigger block (46) is fixed in each adjustment slot (29) and penetrates into the rotation position of the corresponding launching frame (6), and the trigger block (46) is connected to the spring assembly.

6. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 1, characterized in that: The angle adjustment assembly comprises an adjustment slot (30) provided in the bottom frame (2), an adjustment slider (31) slidably connected in the adjustment slot (30), and a plurality of traction ropes (32) are fixed to the bottom surface of the adjustment slider (31), the other ends of the plurality of traction ropes (32) are fixedly connected to the outer wall of the corresponding launch frame (6), and a push spring (33) is fixed between the top of the adjustment slider (31) and the slot wall of the adjustment slot (30), and the top surface of the adjustment slider (31) is fixedly connected to the bottom end of the connecting rope (5).

7. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 5, characterized in that: The spring-launching assembly comprises a control bevel gear 1 (34) rotatably connected in each launch rack (6), and a control bevel gear 2 (35) fixedly connected to each trigger block (46); each control bevel gear 1 (34) is meshed with a corresponding control bevel gear 2 (35); a threaded barrel (36) is coaxially fixed on each control bevel gear 1 (34); a limit frame (37) is fixed in each launch rack (6); a spring-launching block (38) is slidably connected in each limit frame (37); the bottom end of each spring-launching block (38) is threadedly connected to the corresponding threaded barrel (36); the top surface of each spring-launching block (38) contacts the bottom end of the corresponding stabilizing hanging rod (7); a pair of elastic ropes (39) are fixed to the top of the inner wall of each launch rack (6); the bottom end of each pair of elastic ropes (39) is fixedly connected to the corresponding spring-launching block (38).

8. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 7, characterized in that: The extension assembly comprises a stabilizing rope (40) slidably connected in each stabilizing hanging rod (7), and one end of each stabilizing rope (40) is divided into two thin ropes and fixedly connected to the corresponding pair of hooks (8) at the rotating position, and each launching frame (6) is provided with a storage cavity (41), and the other end of each stabilizing rope (40) is coiled in the storage cavity (41) and fixedly connected to the inner wall of the storage cavity (41).

9. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 8, characterized in that: A pair of push cavities (42) are provided in each of the stabilizing hanging rods (7), and a limiting block (43) is slidably connected in each pair of push cavities (42). A limiting spring (44) is fixed between each pair of limiting blocks (43) and the bottom of the corresponding push cavity (42), and one end of each pair of limiting blocks (43) is limitedly matched with the corresponding hook (8).

10. The device for monitoring and assessing heavy metal pollution risk using benthic bivalve molluscs according to claim 6, characterized in that: A pair of adjusting wheels (47) are rotatably connected in the bottom frame (2), a part of the wheel surfaces of the two adjusting wheels (47) are in contact with the adjusting slider (31), and the two adjusting wheels (47) are coaxially fixedly connected with a transmission bevel gear three (48), a pair of transmission bevel gear four (49) are rotatably connected in the bottom frame (2), the transmission bevel gear three (48) is meshed with the transmission bevel gear four (49), and a threaded block (50) is coaxially fixed on each transmission bevel gear four (49), and a pair of connecting blocks (51) are slidably connected in the bottom frame (2), and the connecting blocks (51) and the threaded blocks are connected to each other. The pattern block (50) is threadedly connected, and a gravity block (52) is slidably connected in the bottom frame (2), the top of the gravity block (52) is fixedly connected to the two connection blocks (51), and a pressure block (53) is provided on the bottom surface of the bottom frame (2), the pressure block (53) is fixedly connected to the gravity block (52), and a pressure groove (54) is provided in the fixed plug rod (10), a pair of L-shaped plates (55) are rotatably connected to the fixed plug rod (10), and two torsion springs are provided at the rotating shafts of the two L-shaped plates (55), and the two L-shaped plates (55) are squeezed and matched with the pressure block (53).

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