In-situ collection device for deep-sea microplastics and its integrated detection system

Abstract

The present invention provides an in-situ collection device for deep-sea microplastics and an integrated detection system thereof, and relates to the technical field of seawater microplastic detection devices. The in-situ collection device for deep-sea microplastics and an integrated detection system thereof include a housing and a fixed box, wherein the fixed box is fixedly connected to the top of the housing, the top of the fixed box is fixedly connected to a top plate, a plurality of filter cartridges are fixedly connected inside the housing, a plurality of filter cartridges are fixedly connected inside the water inlet pipe, a connecting plate is fixedly connected inside the housing, the water inlet pipe is connected to the connecting plate, a suction pump is fixedly connected inside the housing, and a filtered water volume detection device, a laser spectrum scanning device, a time series converter and a filter membrane are fixedly connected inside the housing. The in-situ collection device for deep-sea microplastics and an integrated detection system thereof are conducive to preventing the mixing of seawater samples, and blocking large debris to prevent damage to the device.

Description

Technical Field

[0001] The present invention relates to a microplastic collection device, in particular to an in-situ collection device for deep-sea microplastics and an integrated detection system thereof, belonging to the technical field of seawater microplastic detection devices. Background Art

[0002] Microplastics are plastic particles with a diameter of less than 5 mm and are a major carrier of pollution. The small size of microplastics means a higher specific surface area (specific surface area refers to the surface area per unit mass of porous solid materials). The larger the specific surface area, the stronger the ability to absorb pollutants.

[0003] Microplastics are divided into two categories: primary microplastics and secondary microplastics. Primary microplastics refer to plastic particles discharged into the water environment through rivers, sewage treatment plants, etc. Industrial products, such as microplastic particles contained in cosmetics, or plastic particles and resin particles used as industrial raw materials. Secondary microplastics are plastic particles formed by the splitting and volume reduction of large plastic waste through physical, chemical and biological processes.

[0004] At present, the seawater microplastic collection device is generally suitable for surface seawater, and there is no device that can collect in situ at different water depth gradients in the deep sea and detect the abundance of microplastics in situ. When using the collection device commonly used to collect microplastics in deep sea water, it is necessary to dive when sampling seawater. During the dive and surfacing, new seawater is easily introduced into the collection device, resulting in the mixing of the test water body, and it is impossible to obtain accurate data. In addition, the environment in the sea is complex, and the working environment of the collection device is harsh, which is not convenient to use. Fish and aquatic plants have a greater impact on the collection device. At the same time, the recovery and detection system of microplastics is not convenient for graded detection when in use, and the detection data of a single dive is single, and the work efficiency is low. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] The purpose of the present invention is to provide an in-situ collection device for deep-sea microplastics and an integrated detection system thereof in order to solve the above-mentioned problems, so as to solve the problems in the prior art that, when sampling seawater, it is necessary to dive, and new seawater is easily introduced into the collection device during the dive and ascent, resulting in mixing of the detection water body, and it is impossible to obtain accurate data. In addition, the environment in the sea is complex, the working environment of the collection device is harsh, and it is not convenient to use. Fish and aquatic plants have a great impact on the collection device. At the same time, the recovery and detection system for microplastics is not convenient for graded detection during use, the detection data of a single dive is single, and the work efficiency is low.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: an in-situ collection device for deep-sea microplastics, comprising an outer shell and a fixed box, the fixed box is fixedly connected to the top of the outer shell, the top of the fixed box is fixedly connected to a top plate, a plurality of filter cartridges are fixedly connected inside the outer shell, a plurality of filter cartridges are fixedly connected inside the inner parts of the filter cartridges are fixedly connected to a water inlet pipe, a connecting plate is fixedly connected inside the outer shell, the water inlet pipe is communicated with the connecting plate, a suction pump is fixedly connected inside the outer shell, the connecting plate is communicated with the suction pump, a filtered water volume detection device, a laser spectrum scanning device, a time series converter and a filter membrane are fixedly connected inside the outer shell, a water outlet pipe is fixedly connected inside the outer shell, the water outlet pipe is communicated with the water inlet pipe, a pressure sensor is fixedly connected to the top of the outer shell, a fixed plate is fixedly connected to one end inside the outer shell, the fixed plate is communicated with one end of the water inlet pipe, a gear ring is rotatably connected inside the fixed plate, a fixed ring is fixedly connected to one side of the fixed plate, a plurality of positioning rods are fixedly connected inside the fixed ring, and baffles are rotatably connected to the outsides of the plurality of positioning rods.

[0009] Preferably, a plurality of pull rods are hinged on one side of the gear ring, and one end of the plurality of pull rods is respectively hinged to a plurality of baffles, which is conducive to limiting the baffles, thereby driving the baffles to deflect. A waterproof motor is fixedly connected to the rear side of the fixed plate, and a rotating shaft is fixedly connected to the output end of the waterproof motor. A gear is fixedly connected to the outer side of the rotating shaft, and the gear is meshingly connected with the gear ring, so that the waterproof motor starts to drive the rotating shaft to rotate, thereby driving the gear to rotate, and the gear drives the gear ring to rotate.

[0010] Preferably, a filter screen is fixedly connected to the front end of the filter cartridge, and the filter screen fits with the fixing ring, which is conducive to preliminary filtration of seawater and prevents large debris and organisms from entering and causing damage to the detection equipment.

[0011] Preferably, a support plate is fixedly connected inside the fixed box, a rotating rod is rotatably connected inside the support plate, one end of the rotating rod is fixedly connected to a first connecting rod, one end of the first connecting rod is hinged to a second connecting rod, so that rotation of the rotating rod drives the first connecting rod to rotate, and rotation of the first connecting rod drives the second connecting rod to swing.

[0012] Preferably, one side of the support plate is fixedly connected to a fixed block, one side of the fixed block is fixedly connected to a first transmission wheel, one side of the fixed block is rotatably connected to a support rod, the support rod passes through the first transmission wheel and is rotatably connected to the first transmission wheel, one end of the support rod is fixedly connected to a push rod, and the push rod is hinged to the second connecting rod.

[0013] Preferably, one end of the push rod is fixedly connected to a swing rod, one end of the swing rod is rotatably connected to a transverse axis, a second transmission wheel is fixedly connected to the outer side of the transverse axis, a transmission belt is sleeved on the outer sides of the first transmission wheel and the second transmission wheel, one side of the second transmission wheel is fixedly connected to a connecting block, one end of the connecting block is fixedly connected to a saw blade, so that the second connecting rod drives the push rod to swing, and the swing of the push rod drives the swing rod to swing, thereby driving the fixed block to move, driving the transverse axis to move, thereby driving the connecting block and the saw blade to move. At the same time, when the first transmission wheel and the second transmission wheel move, the first transmission wheel limits the transmission belt, so that the transmission belt drives the transverse axis to rotate, and the rotation of the transverse axis drives the connecting block and the saw blade to rotate, which is beneficial to driving away fish and removing suspended matter such as aquatic plants.

[0014] An integrated detection system for in-situ collection of deep-sea microplastics, comprising a remote control terminal, a powered cable, a depth detection and correction module, a lifting module, a layered filtration module, a laser spectrum scanning device, a data detection module, a data storage module and a cloud database, wherein the powered cable is connected to the output end of the remote control terminal, the depth detection and correction module is connected to the output end of the powered cable, the lifting module is connected to the input end of the powered cable, the depth detection and correction module is connected to the output end of the lifting module, the layered filtration module is connected to the output end of the depth detection and correction module, the layered filtration module is connected to the output end of the powered cable, the laser spectrum scanning device is connected to the output end of the layered filtration module, the data detection module is connected to the output end of the laser spectrum scanning device, the data storage module is connected to the output end of the data detection module, the cloud database is connected to the output end of the data storage module, and the cloud database is connected to the remote control terminal.

[0015] Preferably, the depth detection and correction module includes whether the predetermined pressure has been reached, the set pressure has been reached and the set pressure has not been reached. The output end of the pressure sensor is connected to whether the predetermined pressure has been reached, which is conducive to monitoring the seawater pressure. The set pressure output end that has been reached is connected to whether the predetermined pressure has been reached, and the set pressure that has not been reached is connected to the predetermined pressure output end. The lifting module includes a drive motor, and the drive motor output end is connected with stop and run. The stop output end is connected with the elevator pause, and the run output end is connected with the elevator rise and the elevator descent. The set pressure output end that has been reached is connected to stop, and the set pressure output end that has not been reached is connected to run, which is conducive to making the set pressure reach a signal to stop, so that the drive motor is turned off, and the set pressure not reached sends a signal to run, so that the drive motor is turned on, thereby controlling the device to move.

[0016] Preferably, the layered filtration module includes a first filtration pump, a second filtration pump, a third filtration pump and a fourth filtration pump, and the first filtration pump, the second filtration pump, the third filtration pump and the fourth filtration pump are all connected to the output end of the time series converter, which is conducive to enabling the time series converter to control the start time of the first filtration pump, the second filtration pump, the third filtration pump and the fourth filtration pump. The output end of the first filtration pump is connected to a first detection tube, the output end of the second filtration pump is connected to a second detection tube, the output end of the third filtration pump is connected to a third detection tube, and the output end of the fourth filtration pump is connected to a fourth detection tube.

[0017] Preferably, the data storage module includes a detection data backup unit, an automatic data overwriting unit, a detection data deletion unit and whether to delete data. The output end of the detection data backup unit is connected to the automatic data overwriting unit, which is conducive to overwriting previous detection data. The input end of the detection data deletion unit is connected to the detection data backup unit, which is conducive to actively deleting detection data. The output end of the detection data deletion unit is connected to whether to delete data. The output end of the whether to delete data is connected to confirm deletion and cancel deletion.

[0018] The present invention provides an in-situ collection device for deep-sea microplastics and an integrated detection system thereof, which have the following beneficial effects:

[0019] 1. The deep-sea microplastic in-situ collection device and its integrated detection system start the waterproof motor to drive the shaft to rotate, the shaft rotation drives the gear to rotate, the gear rotation drives the gear ring to rotate, so that the gear ring drives multiple pull rods to rotate, and when the multiple pull rods rotate, they drive multiple baffles to deflect, so that the multiple baffles rotate around the positioning rod, so as to open the water inlet pipe, which is conducive to the flow of seawater from the inside of the filter screen into the inside of the water inlet pipe, preventing the mixing of seawater samples, and the filter screen performs preliminary filtration of the seawater, which is conducive to blocking large debris and preventing damage to the device.

[0020] 2. The in-situ collection device for deep-sea microplastics and its integrated detection system allow seawater to flow from the water inlet pipe through the connecting plate and into the same direction as the filter pump. The connecting plate can memorize the volume of filtered seawater, so that the filter pump starts to filter the seawater. The laser spectrum scanning device can detect the number and composition of microplastics in the filtered seawater. The time series converter can set the start time and multiple filtering time periods, and allow seawater to pass through the inside of the filter membrane to filter the microplastics, which is convenient for sampling and subsequent observation.

[0021] 3. The deep-sea microplastic in-situ collection device and its integrated detection system can be connected to the output end of the servo motor through a rotating rod, which drives the rotating rod to rotate and drives the first connecting rod to rotate. The rotation of the first connecting rod drives the second connecting rod to swing. The swing of the second connecting rod drives the push rod to move, so that the push rod drives the swing rod to swing, and when the swing rod swings, the horizontal axis and the second transmission wheel are driven to swing. The first transmission wheel limits the transmission belt, so that when the second transmission wheel moves, the transmission belt limits the second transmission wheel, and rotates when the second transmission wheel moves, so that the second transmission wheel drives the connecting block to rotate, and the rotation of the connecting block drives the saw blade to rotate, which is beneficial to the swing of the swing rod and the saw blade, which is beneficial to driving away marine organisms and preventing the device from being damaged, and can also clean up plants such as seaweed in the sea.

[0022] 4. The in-situ collection device for deep-sea microplastics and its integrated detection system facilitate automatic detection of the diving depth and start working after reaching the specified depth, which facilitates multi-level seawater detection and improves sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a side cross-sectional view of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the filter cartridge of the present invention;

[0026] Figure 4 It is a schematic diagram of the working state of the fixing plate of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the fixing plate of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the swing rod of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the first transmission wheel of the present invention;

[0030] Figure 8 It is a side view schematic diagram of the water inlet pipe of the present invention;

[0031] Fig. 9 This is a schematic diagram of the integrated detection system for in-situ collection of deep-sea microplastics according to the present invention;

[0032] Fig.10 It is a schematic diagram of the connection between the depth detection and correction module and the lifting module of the present invention;

[0033] Fig.11 is a schematic diagram of a depth detection and correction module of the present invention;

[0034] Fig.12 It is a structural schematic diagram of the lifting module of the present invention;

[0035] Fig.13 This is a schematic diagram of the structure of the layered filtration module of the present invention;

[0036] Fig.14 It is a structural schematic diagram of the data storage module of the present invention.

[0037] In the figure: 1, housing; 2, water inlet pipe; 3, connecting plate; 4, filter pump; 5, laser spectrum scanning device; 6, filter membrane; 7, water outlet pipe; 8, pressure sensor; 9, fixing plate; 10, gear ring; 11, fixing ring; 12, positioning rod; 13, baffle; 14, pull rod; 15, rotating shaft; 16, waterproof motor; 17, gear; 19, filter cartridge; 20, filter screen; 21, fixing box; 22, support plate; 23, fixing block; 24, rotating rod; 25, first connecting rod; 26, second connecting rod; 27, supporting rod; 28, first transmission wheel; 29, pushing rod; 30, swing rod; 31, horizontal axis; 32, second transmission wheel; 33, transmission belt; 34, connecting block; 35, saw blade; 36, remote control terminal; 37, power cable; 38, depth detection and correction module; 381, whether the preset pressure has been reached; 382, ​​the set pressure has been reached; 383 , has not reached the set pressure; 39, lifting module; 391, driving motor; 392, stop; 393, run; 394, lift pause; 395, lift rise; 396, lift descend; 40, layered filtration module; 401, first filtration pump; 4011, first detection tube; 402, second filtration pump; 4022, second detection tube; 403, third filtration pump; 4033, third detection tube; 404, fourth filtration pump; 4044, fourth detection tube; 42, data detection module; 43, data storage module; 431, detection data backup unit; 432, data automatic overwrite unit; 433, detection data deletion unit; 434, whether to delete data; 435, confirm deletion; 436, cancel deletion; 44, cloud database; 45, filtered water volume detection device; 46, time series converter; 47, top plate. DETAILED DESCRIPTION

[0038] The embodiments of the present invention provide an in-situ collection device for deep-sea microplastics and an integrated detection system thereof.

[0039] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8, including a shell 1 and a fixed box 21, the fixed box 21 is fixedly connected to the top of the shell 1, and a top plate 47 is fixedly connected to the top of the fixed box 21, characterized in that: a plurality of filter cartridges 19 are fixedly connected inside the shell 1, a water inlet pipe 2 is fixedly connected inside the plurality of filter cartridges 19, a connecting plate 3 is fixedly connected inside the shell 1, the water inlet pipe 2 is communicated with the connecting plate 3, a suction filter pump 4 is fixedly connected inside the shell 1, the connecting plate 3 is communicated with the suction filter pump 4, a filtered water volume detection device 45, a laser spectrum scanning device 5, a time series converter 46 and a filter membrane 6 are fixedly connected inside the shell 1, a water outlet pipe 7 is fixedly connected inside the shell 1, the water outlet pipe 7 is communicated with the water inlet pipe 2, a pressure sensor 8 is fixedly connected to the top of the shell 1, a fixed plate 9 is fixedly connected to one end of the shell 1, the fixed plate 9 is connected to one end of the water inlet pipe 2, a gear ring 10 is rotatably connected inside the fixed plate 9, and one side of the fixed plate 9 is fixedly connected A fixing ring 11 is connected, and a plurality of positioning rods 12 are fixedly connected inside the fixing ring 11. The outer sides of the plurality of positioning rods 12 are rotatably connected with baffles 13. A plurality of pull rods 14 are hinged on one side of the gear ring 10. One end of the plurality of pull rods 14 is hinged with the plurality of baffles 13 respectively, which is conducive to limiting the baffles 13, thereby driving the baffles 13 to deflect. A waterproof motor 16 is fixedly connected to the rear side of the fixing plate 9, and a rotating shaft 15 is fixedly connected to the output end of the waterproof motor 16. A gear 17 is fixedly connected to the outer side of the rotating shaft 15. The gear 17 is meshed with the gear ring 10, so that the waterproof motor 16 starts to drive the rotating shaft 15 to rotate, thereby driving the gear 17 to rotate, and the gear 17 drives the gear ring 10 to rotate. A filter screen 20 is fixedly connected to the front end of the filter cartridge 19, and the filter screen 20 fits the fixing ring 11, which is conducive to preliminary filtration of seawater to prevent large debris and organisms from entering and causing damage to the detection equipment.

[0040] Specifically, the waterproof motor 16 is started to drive the rotating shaft 15 to rotate, the rotation of the rotating shaft 15 drives the gear 17 to rotate, the rotation of the gear 17 drives the ring gear 10 to rotate, so that the ring gear 10 drives the multiple pull rods 14 to rotate, and the rotation of the multiple pull rods 14 drives the multiple baffles 13 to deflect, so that the multiple baffles 13 rotate around the positioning rod 12, thereby opening the water inlet pipe 2, which is conducive to the flow of seawater from the inside of the filter screen 20 into the inside of the water inlet pipe 2, and the filter screen 20 performs preliminary filtration of the seawater, which is conducive to blocking large debris and preventing damage to the device.

[0041] Seawater flows from the water inlet pipe 2 through the connecting plate 3 and into the inside of the filtration pump 4 in the same direction. The connecting plate 3 can memorize the volume of filtered seawater, so that the filtration pump 4 starts to filter the seawater. The laser spectrum scanning device 5 can detect the abundance and types of microplastics in the filtered seawater. The time series converter 46 can set the start time and multiple filtering time periods, and allow seawater to pass through the inside of the filter membrane 6 to filter the microplastics, which is convenient for sampling and subsequent observation.

[0042] Please refer again Figure 1 , Figure 2 , Figure 6 and Figure 7 A support plate 22 is fixedly connected inside the fixed box 21, and a rotating rod 24 is rotatably connected inside the support plate 22. One end of the rotating rod 24 is fixedly connected to a first connecting rod 25, and one end of the first connecting rod 25 is hinged to a second connecting rod 26, so that the rotation of the rotating rod 24 drives the first connecting rod 25 to rotate, and the rotation of the first connecting rod 25 drives the second connecting rod 26 to swing. A fixed block 23 is fixedly connected to one side of the support plate 22, and a first transmission wheel 28 is fixedly connected to one side of the fixed block 23. A support rod 27 is rotatably connected to one side of the fixed block 23. The support rod 27 passes through the first transmission wheel 28 and is rotatably connected to the first transmission wheel 28. A push rod 29 is fixedly connected to one end of the support rod 27, and the push rod 29 is hinged to the second connecting rod 26. A swing rod 30 is fixedly connected to one end of the push rod 29, and a transverse axis 31 is rotatably connected to one end of the swing rod 30. A second transmission wheel 32 is fixedly connected to the outer side of 31, a transmission belt 33 is sleeved on the outer sides of the first transmission wheel 28 and the second transmission wheel 32, a connecting block 34 is fixedly connected to one side of the second transmission wheel 32, and a saw blade 35 is fixedly connected to one end of the connecting block 34, so that the second connecting rod 26 drives the push rod 29 to swing, and the swing of the push rod 29 drives the swing rod 30 to swing, thereby driving the fixed block 23 to move, driving the horizontal axis 31 to move, thereby driving the connecting block 34 and the saw blade 35 to move. At the same time, when the first transmission wheel 28 and the second transmission wheel 32 move, the first transmission wheel 28 limits the transmission belt 33, so that the transmission belt 33 drives the horizontal axis 31 to rotate, and the rotation of the horizontal axis 31 drives the connecting block 34 and the saw blade 35 to rotate, which is beneficial to driving away fish and removing suspended matter such as aquatic plants.

[0043] Specifically, the rotating rod 24 can be connected to the output end of the servo motor, driving the rotating rod 24 to rotate and driving the first connecting rod 25 to rotate. The rotation of the first connecting rod 25 drives the second connecting rod 26 to swing. The swing of the second connecting rod 26 drives the push rod 29 to move, so that the push rod 29 drives the swing rod 30 to swing. When the swing rod 30 swings, it drives the horizontal axis 31 and the second transmission wheel 32 to swing. The first transmission wheel 28 limits the transmission belt 33, so that when the second transmission wheel 32 moves, the transmission belt 33 limits the second transmission wheel 32, and rotates when the second transmission wheel 32 moves, so that the second transmission wheel 32 drives the connecting block 34 to rotate, and the rotation of the connecting block 34 drives the saw blade 35 to rotate, which is beneficial to the swing of the swing rod 30 and the saw blade 35, which is beneficial to driving away marine organisms and preventing the device from being damaged, and can clean plants such as seaweed in the sea.

[0044] See also Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14, an integrated detection system for in-situ collection of deep-sea microplastics, comprising a remote control terminal 36, a powered cable 37, a depth detection correction module 38, a lifting module 39, a layered filtration module 40, a laser spectrum scanning device 5, a data detection module 42, a data storage module 43 and a cloud database 44, wherein the powered cable 37 is connected to the output end of the remote control terminal 36, the depth detection correction module 38 is connected to the output end of the powered cable 37, the lifting module 39 is connected to the input end of the powered cable 37, the depth detection correction module 38 is connected to the output end of the lifting module 39, the layered filtration module 40 is connected to the output end of the depth detection correction module 38, the layered filtration module 40 is connected to the output end of the powered cable 37, and the laser light The spectrum scanning device 5 is connected to the output end of the layered filtration module 40, the data detection module 42 is connected to the output end of the laser spectrum scanning device 5, the data storage module 43 is connected to the output end of the data detection module 42, the cloud database 44 is connected to the output end of the data storage module 43, the cloud database 44 is connected to the remote control terminal 36, the depth detection correction module 38 includes whether the predetermined pressure 381 is reached, the set pressure 382 is reached, and the set pressure 383 is not reached. The output end of the pressure sensor 8 is connected to whether the predetermined pressure 381 is reached, which is conducive to monitoring the seawater pressure, and the output end of the set pressure 382 is connected to whether the predetermined pressure 381 is reached, and the set pressure 383 is not reached. The output end of the pressure 381 is connected, the lifting module 39 includes a driving motor 391, the output end of the driving motor 391 is connected with a stop 392 and a run 393, the output end of the stop 392 is connected with a lift pause 394, the output end of the run 393 is connected with a lift rise 395 and a lift fall 396, the output end of the set pressure 382 that has reached the set pressure is connected to the stop 392, and the output end of the set pressure 383 that has not reached the set pressure is connected to the run 393, which is conducive to the set pressure 382 that has reached the set pressure to send a signal to the stop 392 to turn off the driving motor 391, and the set pressure 383 that has not reached the set pressure to send a signal to the run 393 to turn on the driving motor 391, thereby controlling the device to move, and the layered filtration module 40 includes a first extraction The filter pump 401, the second filter pump 402, the third filter pump 403 and the fourth filter pump 404 are all connected to the output end of the time series converter 46, which is conducive to enabling the time series converter 46 to control the start time of the first filter pump 401, the second filter pump 402, the third filter pump 403 and the fourth filter pump 404. The output end of the first filter pump 401 is connected to the first detection tube 4011, the output end of the second filter pump 402 is connected to the second detection tube 4022, the output end of the third filter pump 403 is connected to the third detection tube 4033, and the output end of the fourth filter pump 404 is connected to the fourth detection tube 4044.The data storage module 43 includes a detection data backup unit 431, a data automatic overwriting unit 432, a detection data deletion unit 433, and whether to delete data 434. The output end of the detection data backup unit 431 is connected to the data automatic overwriting unit 432, which is conducive to overwriting the previous detection data. The input end of the detection data deletion unit 433 is connected to the detection data backup unit 431, which is conducive to actively deleting the detection data. The output end of the detection data deletion unit 433 is connected to whether to delete data 434, and the output end of whether to delete data 434 is connected to confirm deletion 435 and cancel deletion 436.

[0045] Specifically, a signal is sent to the power cable 37 through the remote control terminal 36, and the power cable 37 sends a signal to the depth detection correction module 38. The pressure sensor 8 detects the pressure of the environment and sends a signal whether the predetermined pressure 381 is reached. If the set pressure is not reached, whether the predetermined pressure 381 is reached will send a signal for not reaching the set pressure 383. If the set pressure 383 is not reached, a signal will be sent to run 393 to keep the drive motor 391 started, and a signal is sent to the elevator rising 395 or the elevator descending 396. If the pressure reaches the set value, whether the predetermined pressure 381 is reached will send a signal for reaching the set pressure 382. Having reached the set pressure 382 will send a signal to stop 392, thereby turning off the drive motor 391, thereby sending a signal to pause the elevator 394, stopping the device, so as to facilitate automatic detection of the diving depth and start working after reaching the specified depth.

[0046] When the position is reached, a signal is sent to the layered filtration module 40, causing the time series converter 46 to send a signal to the first filtration pump 401, controlling the first detection tube 4011 to filter the seawater. When the detection is completed, the device continues to dive, and when it reaches the second set position, the time series converter 46 sends a signal to the second filtration pump 402, and controls the second detection tube 4022 to filter, and so on. Then, the third filtration pump 403 and the fourth filtration pump 404 are started, and the seawater is filtered through the third detection tube 4033 and the fourth detection tube 4044, so as to facilitate multi-stage seawater detection and improve sampling efficiency.

[0047] When the filtered seawater passes through the laser spectrum scanning device 5, the laser spectrum scanning device 5 detects the abundance and types of microplastics in the seawater filtered by the seawater. The laser spectrum scanning device 5 sends the detected data to the data detection module 42. The data detection module 42 sends a signal to the data storage module 43 after detecting the data. The data storage module 43 enables the detection data backup unit 431 to back up and save the data. If too much data is retained, the detection data backup unit 431 will send a signal to the data automatic overwriting unit 432, so that the data automatic overwriting unit 432 overwrites the previous data. At the same time, the detection data backup unit 431 can be manually controlled remotely to send a signal to the detection data deletion unit 433, so that the data storage module 43 sends a signal on whether to delete the data 434. If a signal is sent to confirm deletion 435, the data will be deleted. If a signal is sent to cancel deletion 436, it will return to the original page, which is convenient for storing and deleting data.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for collecting deep-sea microplastics in situ, comprising a housing (1) and a fixed box (21), wherein the fixed box (21) is fixedly connected to the top of the housing (1), and a top plate (47) is fixedly connected to the top of the fixed box (21), characterized in that: A plurality of filter cartridges (19) are fixedly connected to the interior of the shell (1), and a water inlet pipe (2) is fixedly connected to the interior of the plurality of filter cartridges (19). A connecting plate (3) is fixedly connected to the interior of the shell (1), and the water inlet pipe (2) is connected to the connecting plate (3). A suction pump (4) is fixedly connected to the interior of the shell (1), and the connecting plate (3) is connected to the suction pump (4). A filtered water volume detection device (45), a laser spectrum scanning device (5), a time series converter (46) and a filter membrane (6) are fixedly connected to the interior of the shell (1). A water outlet pipe (7) is fixedly connected to the interior of the shell (1), and the water outlet pipe (7) is connected to the water inlet pipe (2). A pressure A sensor (8), wherein one end of the housing (1) is fixedly connected to a fixing plate (9), the fixing plate (9) is connected to one end of a water inlet pipe (2), a gear ring (10) is rotatably connected to the fixing plate (9), a fixing ring (11) is fixedly connected to one side of the fixing plate (9), a plurality of positioning rods (12) are fixedly connected to the fixing ring (11), a plurality of positioning rods (12) are rotatably connected to the outside of the plurality of positioning rods (12), a swing rod (30) is arranged inside the fixing box (21), and a saw blade (35) is arranged outside the fixing box (21), so that the swing rod and the saw blade are swung, which is beneficial for driving away marine organisms, preventing the device from being damaged, and cleaning plants such as seaweed in the sea.

2. The in-situ collection device for deep-sea microplastics according to claim 1, characterized in that: A plurality of pull rods (14) are hingedly connected to one side of the gear ring (10), and one end of the plurality of pull rods (14) is hingedly connected to a plurality of baffles (13) respectively. A waterproof motor (16) is fixedly connected to the rear side of the fixed plate (9), and a rotating shaft (15) is fixedly connected to the output end of the waterproof motor (16). A gear (17) is fixedly connected to the outer side of the rotating shaft (15), and the gear (17) is meshingly connected to the gear ring (10).

3. The in-situ collection device for deep-sea microplastics according to claim 1, characterized in that: A filter screen (20) is fixedly connected to the front end of the filter cartridge (19), and the filter screen (20) is in contact with the fixing ring (11).

4. The in-situ collection device for deep-sea microplastics according to claim 1, characterized in that: A support plate (22) is fixedly connected inside the fixed box (21), a rotating rod (24) is rotatably connected inside the support plate (22), one end of the rotating rod (24) is fixedly connected to a first connecting rod (25), and one end of the first connecting rod (25) is hinged to a second connecting rod (26).

5. The in-situ collection device for deep-sea microplastics according to claim 4 is characterized in that: One side of the support plate (22) is fixedly connected to a fixing block (23), one side of the fixing block (23) is fixedly connected to a first transmission wheel (28), one side of the fixing block (23) is rotatably connected to a support rod (27), the support rod (27) passes through the first transmission wheel (28) and is rotatably connected to the first transmission wheel (28), one end of the support rod (27) is fixedly connected to a push rod (29), and the push rod (29) is hinged to the second connecting rod (26).

6. The in-situ collection device for deep-sea microplastics according to claim 5, characterized in that: The swing rod (30) is fixedly connected to one end of the push rod (29); one end of the swing rod (30) is rotatably connected to a transverse shaft (31); a second transmission wheel (32) is fixedly connected to the outside of the transverse shaft (31); a transmission belt (33) is sleeved on the outside of the first transmission wheel (28) and the second transmission wheel (32); one side of the second transmission wheel (32) is fixedly connected to a connecting block (34); and the saw blade (35) is fixedly connected to one end of the connecting block (34).

7. An integrated detection system for in-situ collection of deep-sea microplastics, applicable to the in-situ collection device for deep-sea microplastics as claimed in any one of claims 1 to 6, characterized in that: The invention comprises a remote control terminal (36), an energized cable (37), a depth detection and correction module (38), a lifting module (39), a layered filtering module (40), a laser spectrum scanning device (5), a data detection module (42), a data storage module (43) and a cloud database (44), wherein the energized cable (37) is connected to an output end of the remote control terminal (36), the depth detection and correction module (38) is connected to an output end of the energized cable (37), the lifting module (39) is connected to an input end of the energized cable (37), and the depth detection and correction module (38) is connected to an input end of the lifting module (39). The output end of the layered filtering module (40) is connected to the output end of the depth detection correction module (38), the layered filtering module (40) is connected to the output end of the power cable (37), the laser spectrum scanning device (5) is connected to the output end of the layered filtering module (40), the data detection module (42) is connected to the output end of the laser spectrum scanning device (5), the data storage module (43) is connected to the output end of the data detection module (42), the cloud database (44) is connected to the output end of the data storage module (43), and the cloud database (44) is connected to the remote control terminal (36).

8. The integrated detection system for in-situ collection of deep-sea microplastics according to claim 7 is characterized in that: The depth detection and correction module (38) includes whether a predetermined pressure (381) has been reached, a set pressure (382) has been reached, and the set pressure (383) has not been reached. The output end of the pressure sensor (8) is connected to whether the predetermined pressure (381) has been reached, the output end of the set pressure (382) has been reached is connected to whether the predetermined pressure (381) has been reached, and the set pressure (383) has not been reached is connected to the output end of whether the predetermined pressure (381) has been reached. The lifting module (39) includes a driving motor (391), the output end of the driving motor (391) is connected to stop (392) and run (393), the output end of the stop (392) is connected to the elevator pause (394), the output end of the run (393) is connected to the elevator rise (395) and the elevator fall (396), the output end of the set pressure (382) has been reached is connected to stop (392), and the output end of the set pressure (383) has not been reached is connected to run (393).

9. The integrated detection system for in-situ collection of deep-sea microplastics according to claim 8 is characterized in that: The layered filtration module (40) comprises a first filtration pump (401), a second filtration pump (402), a third filtration pump (403) and a fourth filtration pump (404); the first filtration pump (401), the second filtration pump (402), the third filtration pump (403) and the fourth filtration pump (404) are all connected to the output end of the time series converter (46); the output end of the first filtration pump (401) is connected to a first detection tube (4011); the output end of the second filtration pump (402) is connected to a second detection tube (4022); the output end of the third filtration pump (403) is connected to a third detection tube (4033); and the output end of the fourth filtration pump (404) is connected to a fourth detection tube (4044).

10. The integrated detection system for in-situ collection of deep-sea microplastics according to claim 9, characterized in that: The data storage module (43) comprises a detection data backup unit (431), an automatic data overwriting unit (432), a detection data deletion unit (433) and a whether to delete data (434); the output end of the detection data backup unit (431) is connected to the automatic data overwriting unit (432); the input end of the detection data deletion unit (433) is connected to the detection data backup unit (431); the output end of the detection data deletion unit (433) is connected to the whether to delete data (434); and the output end of the whether to delete data (434) is connected to a confirmation deletion (435) and a cancellation deletion (436).

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