Special shipborne device for collecting particles in water

Abstract

The utility model discloses a special shipborne device for collecting particles in water. The special shipborne device is characterized in that a flexible structural design and an intelligent data collection module are combined to realize underwater particle sampling on a ship body. According to the device, convenient inlet water and outlet water recovery of the collecting filter screen is achieved through the turnover supporting rod, the filter screen is in a conical net bag shape and effectively intercepts particulate matter, the water flow velocity sensor monitors the water flow condition in real time, and the sampling accuracy is ensured. A built-in GPS receiver and a data storage module automatically record sampling positions and environmental parameters, and are matched with depth data acquisition of a water depth sensor, so that the data integrity is improved. The manual valve can be used for efficiently collecting samples. In addition, the device supports replacement of filter screens of different specifications, adapts to diversified particulate matter collection requirements, further improves the sampling efficiency through double-side configuration, is suitable for large-range or multi-point sampling tasks, and remarkably improves the flexibility, efficiency and scientificity of sampling work.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental ecological water body sample collection and detection equipment, and is mainly used in the fields of environmental monitoring, water quality analysis, scientific research, etc. Specifically, it is a special device for collecting particulate matter in water on a ship. Background Art

[0002] The technology for collecting particulate matter in water is mainly used in the fields of environmental monitoring, water quality analysis, scientific research, etc. Its purpose is to collect suspended particulate matter of different sizes and properties from water bodies, including suspended solids (SS), plankton, sediment particles, plastic particles, etc., in order to further analyze their composition, distribution and sources. Currently, the sampling method usually intercepts particulate matter in water through physical filtration. The filter screen is usually made of synthetic fibers, wire mesh or special materials. The pore size of the filter screen is determined according to the size of the target particulate matter, and the common pore size range is from a few micrometers to hundreds of micrometers. The filter screen is usually encapsulated in a sturdy frame, which can be circular, square or other shapes to meet different collection requirements. The working principle is to place the filter screen into the water body to be sampled. When water flows through the filter screen, water molecules and dissolved substances can pass through smoothly, while suspended particulate matter larger than the pores is retained on the filter screen. After the collection is completed, the particulate matter on the filter screen will be collected into a container for subsequent analysis and processing. The samples can be used to evaluate the water quality status, monitor the pollution levels in rivers, lakes and oceans, or study the composition, sources and migration patterns of particulate matter in water bodies, and also be used in the wastewater treatment process to monitor and control the particulate matter content of the discharged water. It can be seen that the sampling operation of water body suspended particulate matter is of great significance.

[0003] However, currently in the operation of collecting particulate matter in water, when using a filter screen for sampling, there are several obvious drawbacks: 1. Limited sampling location: Since sampling relies on the natural flow of water through the filter screen, this means that the choice of sampling points may be restricted. For example, if sampling is required under specific depth or flow rate conditions, traditional filter screens may not be easily moved to the ideal position, especially in deep waters or fast-flowing currents.

[0004] 2. Inconvenient installation and maintenance: When the filter screen is fixed on the hull or sampling platform, the installation and disassembly process may be quite cumbersome, especially when installing, maintaining and replacing equipment on a ship's hull, which is time-consuming and inconvenient.

[0005] 3. Difficult to replace the filter screen: Different research or monitoring projects may require the use of filter screens with different pore sizes or types to capture particulate matter of specific sizes or properties. However, replacing the filter screen is often not a simple process and may require downtime, affecting the sampling efficiency.

[0006] 4. Inaccurate data recording: During the sampling process, key parameters such as water depth, GPS coordinates, and water inflow usually need to be manually recorded. This method is prone to introducing human errors and is inconvenient, and it may not be possible to obtain these data in real time, resulting in a decrease in the accuracy of sampling conditions. Summary of the Invention

[0007] In view of the many defects and deficiencies in the above-mentioned background technology, the inventors have made improvements and innovations. After design and experiments, they finally provided a shipborne device with a delicate structural design, which realizes the collection of waterborne particulate matter during navigation, and integrates key environmental data recording and acquisition during the process, such as speed sensors, water depth sensors, and GPS positioning technology, providing an efficient and convenient means for water pollution monitoring and research. Its structure is reasonable and scientific, easy to operate and use. To solve the above problems and achieve the above-mentioned invention purpose, the present utility model is realized by adopting the following design structure and the following technical solutions: A special device for collecting waterborne particulate matter on a ship, comprising:

[0008] A device base, which is placed and fixed on the bottom plate or table surface on the side wall of the ship body close to the ship side, and a rotating shaft is installed in the middle; and a power module, a GPS receiver, and a data storage module are built in, which are used for the installation and fixation of the whole device and obtaining GPS position signal data during the collection process;

[0009] A turnable support rod, which has a multi-segment curved shape design, and the end is connected and installed on the rotating shaft, and can rotate with the rotating shaft. The other end of the turnable support rod is an installation ring. The axial direction of the rotating shaft is connected to a rotating handle outside the device base, and the rotating handle can be operated to rotate to drive the rotating shaft to rotate, thereby driving the turnable support rod to rotate synchronously along the transverse plane. After rotating down in place, the end where the installation ring is located is screwed into the water from the outside of the ship body and is located below the ship body; when the rotating handle is operated in the reverse direction to make the turnable support rod rotate upwards, the end where the installation ring is located can be lifted from the water surface and is located above the ship body;

[0010] A collection filter screen, which is in the shape of a conical net pocket, and the open end is installed on the installation ring, and the open end faces the traveling direction of the ship body; it is used for intercepting waterborne particulate matter during the navigation of the ship.

[0011] A sample outlet nozzle, which has a conical sleeve-like structure, is installed at the tail end of the collection filter screen and forms a communicating connection. The inner cavity diameter of the sample outlet nozzle gradually narrows from the mouth to the tail end;

[0012] A manual valve, which is installed on the side wall of the sleeve of the sample outlet nozzle and is used to control the opening and closing of the inner cavity channel of the sample outlet nozzle;

[0013] A water flow velocity sensor, installed at the center of the installation ring, is connected to the device base through a first data line, and is used to collect real-time water flow velocity data entering the collection filter screen and transmit it to the data storage module

[0014] The working principle of the present utility model: The device base serves as a housing fixedly installed on the hull, and at the same time serves as the installation housing structure for the rotating mechanism, other components, and the battery. The display screen and operation buttons can be integrally installed on the outside. The flip rod is rotatably installed on the device base, and its structure is installed in such a way that it can rotate outward relative to the lateral direction of the hull. The length and shape of the flip rod are such that it can be submerged in water after rotating downward. An installation ring is installed at its end. This installation ring is an annular structure for fixing and installing the collection filter screen. The opening of the collection filter screen is sleeved and fixed on the installation ring. The installation ring provides a state in which the opening of the collection filter screen is always kept open, and the collection filter screen can rotate with the installation ring and the flip rod. Before sampling, install the collection filter screen of the required specification on the installation ring, and then operate the rotation handle to rotate, driving the flip rod to rotate downward and outward until it is submerged below the water surface. After rotating in place, at this time, the collection filter screen is located at a certain depth in the water below or obliquely below the hull. Then the hull sails at a predetermined speed. During the sailing process, the water body below the hull will enter the collection filter screen through the opening opened by the installation ring. After the particulate suspended matter in the water contacts the collection filter screen, it is isolated on the collection filter screen, and the water molecules are discharged through the collection filter screen, thus achieving the purpose of sampling. During this process, the water flow velocity sensor installed at the opening of the sampling filter screen can collect the current real-time water flow velocity data and transmit it to the necessary circuits in the device base through the first data line. The necessary circuits in the device base are activated and operated due to the power supply of the power module. It can receive the data of the GPS receiver and convert it into position data and send it to the data storage module. These data can be used to assist experiments later and are important sampling-related data. When the sampling is completed, operate the rotation handle in the reverse direction to rotate, driving the flip rod to rotate upward from the outside until it is disengaged from the water surface and is placed above the hull after rotating in place. The operator can collect the sample. When collecting, operate the manual valve on the sample outlet to open, and catch it with a sampling bottle at the outlet. Under the action of gravity, the sample water body suspended particles attached to the sampling filter screen gradually slide into the sampling bottle to achieve the purpose of collection. Then the next sampling can be carried out, or the filter screen specification can be changed to collect another target object.

[0015] The beneficial effects of the present utility model compared with the prior art are:

[0016] 1. The device adopts a design of a flip-up rod, which can be adjusted to the lower oblique or lower part of the hull according to actual needs, and is suitable for use on various boats in a variety of water environments. Through the structural design of rotating the flip-up rod, the rapid deployment of the sampling filter body into the water and the rapid recovery of samples are realized. The opening and closing of the sample outlet nozzle are controlled by a manual valve, making the sample collection process simple and direct, reducing the operation complexity; improving the sampling efficiency, flexibility and usability.

[0017] 2. The built-in GPS receiver and data storage module of the device ensure the accurate recording of the sampling location each time, facilitating the tracing of the sampling position during subsequent analysis; at the same time, the acquisition of real-time water flow velocity data is convenient for calculating the water volume corresponding to the sample when processing data in the later stage, enhancing the integrity and scientific nature of the sampling data. The integrated power module ensures the independent operation of the entire device without external power support, enhancing the convenience of field operations.

[0018] 3. The structure of this patent meets the installation and replacement of collection filters of different specifications, meets the collection requirements for particulate matter of different particle sizes, and enhances the versatility and application range of the device; the flip-up rods configured on both sides can achieve simultaneous collection of multiple sampling targets, further improving the breadth and efficiency of sampling, and is suitable for large-scale or multi-point sampling tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further elaborates on the specific implementation manners of the present utility model in conjunction with the drawings, where:

[0020] Figure 1 is a schematic diagram of the installation structure of the special device for collecting particulate matter in water on a ship of the present utility model;

[0021] Figure 2 is a schematic diagram of the rotation mode of the flip-up rod of the present utility model;

[0022] Figure 3 is a three-dimensional structure diagram of the special device for collecting particulate matter in water on a ship of the present utility model;

[0023] Figure 4 is a schematic diagram of the rotation connection structure of the flip-up rod of the present utility model;

[0024] Figure 5 is a schematic diagram of the state when the flip-up rod rotates into the water of the present utility model;

[0025] Figure 6 is a schematic diagram of the use state effect of the movable limit block and the fixed limit block on the device base;

[0026] Figure 7 is a schematic diagram of the use state of the special device for collecting particulate matter in water on a ship of the present utility model;

[0027] Figure 8 It is a schematic diagram of the installation structure of the collection filter screen and the installation ring of the present utility model;

[0028] Figure 9 It is a schematic diagram of the process of collecting samples by the collection filter screen of the present utility model;

[0029] Figure 10 、 11 It is a schematic diagram of the storage method of the special device for collecting particulate matter in water of the present utility model;

[0030] Figure 12 It is a three-dimensional schematic diagram of the structure of Embodiment 2 of the present utility model.

[0031] Among them,

[0032] 1-device base, 11-rotating shaft, 12-rotating handle, 13-groove, 14-connecting ring, 15-cross bar, 16-link rod, 17-movable limit block, 18-fixed limit block;

[0033] 2-flippable support rod, 21-installation ring, 22-fixture, 23-support bar, 24-water flow velocity sensor, 25-first data line, 26-depth external probe, 27-second data line, 28-connecting component;

[0034] 3-collection filter screen, 31-sample outlet nozzle, 32-manual valve. Specific implementation manner

[0035] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the technical solutions of the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0036] Embodiment 1: A special device for collecting particulate matter in water on a ship, comprising:

[0037] The device base 1 is placed and fixed on the bottom plate against the side wall of the ship inside the hull, and a rotating shaft 11 is installed on the top; and a power module, a GPS receiver, and a data storage module are built-in, which are used for the installation and fixation of the whole device and obtaining the GPS position signal data during the acquisition process; the device base 1 can be in the shape of a conical tabletop, and the bottom can be installed on the ship board by screws. The device base 1 is used as the load-bearing main body and needs to be firmly installed with the hull. The power module of the built-in device can include a battery module, and is connected to the GPS receiver and the data storage module through necessary circuit boards, and necessary data transmission jacks and interfaces are set. Its main purpose is also to fixedly install the flip rod 2;

[0038] The flip rod 2 has a multi-segment curved shape design. One side of the end is hinged to the rotating shaft 11, and the other end is an installation ring 21. The end of the flip rod 2 can be operated to rotate horizontally along the rotating shaft 11. After rotating downward in place, the end where the installation ring 21 is located rotates downward into the water from the outside of the hull and is located below the hull; after rotating upward, the end where the installation ring 21 is located can be lifted from the water surface and is located above the hull; the multi-segment curved shape design is to have a corresponding curvature when the flip rod 2 is screwed under the ship bottom, avoiding the ship side plate and placing it under the ship bottom; the end of the flip rod 2 is a rotating handle 12, and the rear part of the rotating handle 12 is hinged to the rotating shaft 11. The hinged part is a conventional hinge connection. Pushing the rotating handle 12 upward can make the front end move downward. The movement direction of the hinge is designed to be horizontal and in the longitudinal direction of the hull, so that the front end rotates downward into the water body from the outside of the ship side plate. After the rotating handle 12 is pushed upward in place, the installation ring 21 at the front end is exactly in the water and below the hull. The installation ring 21 is used to connect and install with the open end of the sampling filter 3, so as to fix the installation form of the sampling filter 3, so that it is below the ship bottom and the opening is facing the traveling direction of the hull. As the ship moves forward, water flow can enter the sampling filter 3 and pass through the sampling filter 3; the sampling filter 3 in the shape of a conical mesh bag has an open end installed on the installation ring 21, and the open end faces the traveling direction of the hull; it is used to intercept particulate matter in the water during the ship's navigation;

[0039] The sampling nozzle 31 is installed at the tail end of the sampling filter 3 and forms a communicating connection. The inner cavity diameter of the sampling nozzle 31 gradually narrows from the mouth to the tail end; a manual valve 32 is installed on the side wall of the sampling nozzle 31, which is used to control the opening and closing of the inner cavity channel of the sampling nozzle 31; after the sample collection process is completed, press down the rotating handle 12, lift the flip rod 2 out of the water surface, and rotate it above the hull. Open the sample bottle, align it with the vertically downward sampling nozzle 31, operate the manual valve 32 to open, and the sample flows into the sample bottle, and the sampling is completed.

[0040] The water flow velocity sensor 24 is installed at the center of the mounting ring 21 of the rotary bracket and is connected to the device base 1 through a data cable. It is used to collect the real-time water flow velocity data entering the collection filter screen 3 and transmit it to the data storage module. The circuit board in the device base 1 can also receive and store the data information sent by the water flow velocity sensor 24. The water flow velocity sensor 24 can be used to assist in calculating the ring opening area of the mounting ring 21 and the water flow velocity during the entire collection process, and simulate and calculate the volume of water entering the collection filter screen 3 for use in subsequent experimental data calculation and analysis.

[0041] Preferably: A slot 13 with an upward opening is provided in the middle of the device base 1. The rotating shaft 11 horizontally penetrates through the slot 13. The rotating shaft 11 is placed in the shaft sleeves inside the two sides of the slot 13 and can rotate within the shaft sleeves. A connecting ring 14 is installed at the area of the rotating shaft 11 located in the slot 13. The connecting ring 14 is in interference connection with the rotating shaft 11. A cross bar 15 is installed on the connecting ring 14. The end of the cross bar 15 can be detachably connected and installed to the flip-up support rod 2 through a connecting piece. The rotating handle 12 includes a connecting rod 16 connected to the rotating shaft 11. The connecting rod 16 is placed outside the device base 1. On the outside of the device base 1, a movable limit block 17 that can extend and retract horizontally and a fixed limit block 18 that cannot move are provided. The fixed limit block 18 is used to limit the maximum movement range of the connecting rod 16, and the movable limit block 17 is used to cooperate with the fixed limit block 18 to clamp the connecting rod 16 to keep it stationary.

[0042] In actual use, the installation height of the device base 1 needs to be at a relatively high position, at least such that the height of the slot 13 is higher than the height of the side plate of the hull, and as close as possible to the edge of the hull. The built-in bushing is installed at both ends of the slot 13 in the device base 1 as the function of a bearing seat. The rotating shaft 11 is installed in the bushing and cuts through the slot 13. An interference-fitted connection ring 14 is sleeved on the rotating shaft 11. The connection ring 14 rotates with the rotating shaft 11. The cross bar 15 extends out of the slot 13 and is connected to the vertical connecting rod 16 through a corner structure. There is also a bent cross bar 15 connected to the end of the vertical connecting rod 16. The end of the cross bar 15 turns again to be connected to the mounting ring 21. The design of multiple turns enables the flip-up support rod 2 to avoid the side plate of the hull and extend outwards as much as possible, so that the mounting ring 21 can be immersed in water. During specific use, the length of the vertical support rod can be designed according to the sampling depth requirement, or a telescopic rod structure with adjustable length can be used to ensure that the mounting ring 21 can extend to the required depth after being immersed in water. The stiffness of the rod body and the rotating shaft 11 needs to be able to bear its weight and the resistance during navigation. When the flip-up support rod 2 rotates into place, the rotating handle 12 also rotates into place. At this time, the connecting rod 16 contacts the fixed limit block 18 at the outer end. The operator pulls out the movable limit block 17, and the movable limit block 17 is located above the connecting rod 16. At this time, the connecting rod 16 is fixed between the movable limit block 17 and the fixed limit block 18 and cannot rotate, thus ensuring that the rotating shaft 11 does not rotate, that is, ensuring that during the sampling process, the opening of the sampling filter net always faces the driving direction; after the sampling is completed and needs to be recovered, the operator presses back the movable limit block 17 and then operates the rotating handle 12 to reverse, and the flip-up support rod 2 can be rotated out of the water. After being in place, the movable limit block 17 at the other end is also operated to extend, and the position of the flip-up support rod 2 can be locked at this time. The operator can operate to collect samples with both hands or replace the sampling filter net. The end of the cross bar 15 can be connected and installed to the flip-up support rod 2 through a docking pipe and a fixing bolt, and the fixing bolt can prevent the support rod from rotating. The detachable installation is for the purpose of convenient disassembly, storage and accommodation. Such a design can make the device not occupy space when it is idle, as Figure 10 , 11 shown, it can be installed and used as needed, and the disassembly and assembly are convenient.

[0043] Preferably, on the rod body of the turnable rod 2, a fixture 22 facing the water surface is installed. A depth external probe 26 can be installed inside the fixture 22. The depth external probe 26 is connected to the device base 1 through a second data line 27. A depth gauge module is installed inside the device base 1. The depth gauge module is connected to the depth external probe 26 and the data storage module, and can store the measured depth data into the data storage module. The position and orientation of this fixture 22 are carefully considered to ensure that when the turnable rod 2 rotates downward into the water, the depth external probe 26 inside the fixture 22 can directly point to the water body, so as to accurately measure the underwater depth. The depth external probe 26 is a sensor specifically designed for measuring underwater depth. It uses sonar and optical principles to determine the underwater distance, depending on the type of the probe. In this device, the probe is firmly installed inside the fixture 22 to ensure that it faces the water surface directly, and can collect the depth data information of the corresponding water body during the sampling process. The depth gauge module inside the device base 1 is the core of depth data processing. It uses the existing product technology, can receive the original signal from the depth external probe 26, perform necessary signal processing, and convert it into the actual depth value. This module usually includes electronic components such as signal amplification, filtering, and data conversion, which will not be elaborated in this embodiment. The depth data processed by the depth gauge module will be sent to the data storage module. The data storage module is responsible for storing these data for a long time for subsequent analysis and use. These data are then stored and become part of the sampling report, which is of great value for evaluating water quality conditions, particulate matter distribution, and environmental changes. In addition, combined with the geographical location information recorded by the GPS receiver, a detailed map of the sampling points can be constructed to further enhance the practicality and scientific value of the sampling data. It should be noted that the circuit design in this embodiment belongs to the conventional technical means and can be reasonably connected and designed based on the type of its sensor components. It only involves the transmission and recording of data and does not involve the design and use of computer software programs.

[0044] Preferably, the mounting ring 21 is an annular frame body with an inclined surface structure having a taper. The inclination of the frame body corresponds to the inclination of the caliber part of the collection filter screen 3, and the size of the frame body corresponds to the caliber size of the collection filter screen 3. A connecting component 28 for fixing the opening of the collection filter screen 3 is arranged on the frame body, which is used to fixedly connect the annular frame body sleeved in the opening of the collection filter screen 3 with the collection filter screen 3. A plurality of support bars 23 extending towards the center of the ring are further installed on the inner circumferential wall of the mounting ring 21, and the water flow velocity sensor 24 is installed at the intersection of the support bars 23. The water flow velocity sensor 24 can be wirelessly connected to the depth finder module through a wireless module. The annular frame body serves as the support frame of the collection filter screen 3. It surrounds the edge of the filter screen to ensure that the filter screen will not deform or move during the collection process; the taper design can enable the frame body to better cooperate with the interface of the collection device; the connecting component 28 is a special structural design on the annular frame body, aiming to install the sampling filter screen on the annular frame body through a detachable installation solution. Locking and clamping parts such as buckles, clamps or latches can be used to form a firm connection to prevent the filter screen from falling off during the collection process. The support bars 23 are designed to install the water flow velocity sensor 24. The water flow velocity sensor 24 is a commercially available product, which is used to obtain the water body flow velocity entering the sampling filter screen during the sampling process. The corresponding water body volume of the sample can be obtained through later calculation, which is important analysis data.

[0045] Preferably, the installation position of the flippable rod 2 relative to the hull is such that when it is screwed into the water, it is placed obliquely below or below the hull and in front of the thruster.

[0046] Embodiment 2 is an improvement based on Embodiment 1. The on-board devices on the hull include two sets, namely two flippable rods 2, bases and collection filter screens 3, which are respectively installed on the left and right sides of the hull and are respectively used to install filter screens of different specifications. Such a structural design meets the requirement of using two specifications of filter screens during the same voyage to collect different target particulate matters, and can effectively improve the sampling efficiency.

[0047] Finally, it should be noted that the above has clearly and completely described the concept, specific structure and technical effects generated of the present utility model in combination with the embodiments and the drawings to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts all belong to the scope protected by the present utility model. In addition, all the connection and coupling relationships mentioned in the text do not simply refer to the direct connection of components, but refer to the formation of a better coupling structure by adding or reducing coupling accessories according to the specific implementation situation. Each technical feature in the creation of the present utility model can be interactively combined without mutual contradiction and conflict.

Claims

1. A special device for collecting particulate matter in water on a ship, characterized in that Comprising: A device base (1), placed and fixed on the bottom plate or tabletop against the ship's side wall inside the ship, with a rotating shaft (11) installed in the middle; and a power module, a GPS receiver, and a data storage module are built-in, used for installing and fixing the whole device and obtaining GPS position signal data during the acquisition process; A turnable rod (2), designed with a multi-segment curved shape, the end is connected and installed on the rotating shaft (11), can rotate with the rotating shaft (11), the other end of the turnable rod (2) is an installation ring (21), the axial direction of the rotating shaft (11) is connected to a rotating handle (12) outside the device base (1), can operate the rotating handle (12) to rotate and drive the rotating shaft (11) to rotate, thereby driving the turnable rod (2) to rotate synchronously along the transverse plane. After rotating down in place, the end where the installation ring (21) is located rotates downward into the water from the outside of the ship and is located below the ship; operating the rotating handle (12) in the reverse direction, after the turnable rod (2) is lifted upward, the end where the installation ring (21) is located can be lifted from the water surface and is located above the ship; A collection filter (3), in the shape of a conical net bag, the open end is installed on the installation ring (21), and the open end faces the traveling direction of the ship; used for intercepting waterborne particulate matter during the ship's navigation; A sampling nozzle (31), with a conical sleeve-like structure, installed at the tail end of the collection filter (3) and forming a communicating connection, the inner cavity diameter of the sampling nozzle (31) gradually narrows from the mouth to the tail end; A manual valve (32), installed on the side wall of the sleeve of the sampling nozzle (31), used to control the opening and closing of the inner cavity channel of the sampling nozzle (31); A water flow velocity sensor (24), installed at the center of the installation ring (21), connected to the device base (1) through a first data line (25), used for collecting real-time water flow velocity data entering the collection filter (3) and transmitting it to the data storage module.

2. The dedicated device for collecting underwater particulate matter on board a ship according to claim 1, characterized in that, A slot (13) with an upward opening is provided in the middle of the device base (1), the rotating shaft (11) horizontally penetrates through the slot (13), the rotating shaft (11) is placed in the shaft sleeves inside both sides of the slot (13), can rotate in the shaft sleeves, a connecting ring (14) is installed in the area of the slot (13) where the rotating shaft (11) is located, the connecting ring (14) is in interference connection with the rotating shaft (11), a cross bar (15) is installed on the connecting ring (14), and the end of the cross bar (15) can be detachably connected and installed to the turnable rod (2) through a connecting piece.

3. The special device for collecting particulate matter in water on board a ship according to claim 2, characterized in that, The rotating handle (12) includes a connecting rod (16) connected to the rotating shaft (11), the connecting rod (16) is placed outside the device base (1), on the outside of the device base (1), a movable limit block (17) that can extend and retract horizontally and a non-movable fixed limit block (18) are provided, the fixed limit block (18) is used to limit the maximum activity range of the connecting rod (16), and the movable limit block (17) is used to cooperate with the fixed limit block (18) to clamp the connecting rod (16) to keep it stationary.

4. The dedicated device for collecting underwater particulate matter on a ship according to claim 1, characterized in that, On the rod body of the turnable rod (2), a fixture (22) facing the water surface is installed. A depth external probe (26) can be installed in the fixture (22). The depth external probe (26) is connected to the device base (1) through a second data line (27). A depth finder module is installed in the device base (1). The depth finder module is connected to the depth external probe (26) and the data storage module, and can store the measured depth data into the data storage module.

5. The dedicated device for collecting underwater particulate matter on a ship according to claim 1, wherein The mounting ring (21) is an annular frame body with a tapered inclined surface structure. The inclination of the frame body corresponds to the inclination of the diameter part of the collection filter screen (3), and the size of the frame body corresponds to the diameter size of the collection filter screen (3). And a connecting component (28) for fixing the opening of the collection filter screen (3) is arranged on the frame body, which is used to fixedly connect the annular frame body sleeved in the opening of the collection filter screen (3) and the collection filter screen (3) to each other.

6. The dedicated device for collecting underwater particulate matter on board a ship according to claim 4, wherein, Several support bars (23) extending towards the center of the ring are also installed on the inner ring wall of the mounting ring (21). The water flow velocity sensor (24) is installed at the intersection of the support bars (23). The water flow velocity sensor (24) can be wirelessly connected to the depth finder module through a wireless module.

7. The dedicated device for collecting particulate matter in water on a ship according to claim 5, characterized in that, The installation position of the turnable rod (2) relative to the hull is such that when it is screwed into the water, it is placed obliquely below or below the hull and in front of the propeller.

8. The dedicated device for collecting particulate matter in water on board a ship according to claim 7, characterized in that, It includes two sets of turnable rods (2), a base and a collection filter screen (3), which are respectively installed on the left and right sides of the hull and are respectively used to install filter screens of different specifications.

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