A towed plankton monitoring device

Abstract

This utility model relates to the field of monitoring equipment technology, specifically a towed plankton monitoring device, including a detection hull. This towed plankton monitoring device features a high-pressure flushing mechanism installed on the hull near the sweeping plate, allowing the high-pressure flushing mechanism to act on the sweeping plate at close range. The high-pressure flushing mechanism includes a micro water pump and two high-pressure nozzles, with the micro water pump being the core power component, pressurizing the water and delivering it to the high-pressure nozzles. The two high-pressure nozzles are respectively inclined, with the inclination angle adapted to the width and surface curvature of the sweeping plate, accurately aligning with both sides of the sweeping plate and covering its entire width. When the micro water pump is activated, the pressurized water is delivered to the two high-pressure nozzles through pipelines, forming a high-pressure water jet that sprays onto both sides of the sweeping plate, flushing and cleaning the surface of sticky algae, oil, and other debris, preventing debris accumulation from affecting the sweeping plate's movement, and ensuring the coordinated operation of the sweeping plate and the detection hull.

Description

Technical Field

[0001] This utility model relates to the field of monitoring equipment technology, specifically a towed plankton monitoring device. Background Technology

[0002] Plankton refers to microscopic biological communities that live in water bodies, cannot actively control their horizontal movement, and can only float with the water flow. They are widely distributed in various types of water bodies such as oceans, lakes, and rivers, and are a fundamental link in aquatic ecosystems. They participate in the global carbon cycle and oxygen balance through photosynthesis and respiration. To monitor the species, quantity, and distribution of plankton, commonly used detection devices include plankton nets, plankton counting frames, and more sophisticated fully automated plankton analyzers. These instruments automatically capture plankton images through image recognition technology, combine them with databases to quickly identify species and count densities, and can efficiently complete large-scale plankton monitoring in water bodies, providing data support for assessing water quality and predicting ecological issues such as red tides.

[0003] A search revealed a Chinese patent (CN220374706U) disclosing a hydrological monitoring unmanned surface vessel (USV), comprising a hull and a drive box fixedly installed at the end of the hull. The drive box and the hull form a cavity. A rotating shaft is inserted into the bottom wall of the cavity, and the upper end of the rotating shaft passes through the drive box and is fixedly connected to a connecting frame. A sweeping plate is detachably installed at one end of the connecting frame. A swing rod is fixedly sleeved on the rotating shaft, and the swing rod has a strip-shaped opening. A base shaft is rotatably inserted into the bottom wall of the cavity, and a turntable is fixedly sleeved on the base shaft. In this invention, by setting a sweeping plate that can swing left and right at the front end of the hull, plankton or debris on the water surface in front of the USV is moved to both sides during the movement of the USV, preventing blockage of the monitoring equipment and ensuring that the monitoring equipment can work normally. Water can still pass through the sweeping plate while the debris is being moved, reducing resistance.

[0004] The aforementioned patent proposes to use a sweeping plate that can swing left and right at the front of the hull to move plankton or debris on the front water surface to both sides, preventing debris from covering the monitoring equipment. However, in actual use, during the long-term process of sweeping plankton and debris, some sticky debris tends to adhere to the surface of the sweeping plate and inside the through holes, causing blockage of the through holes. This not only defeats the design function of reducing water flow resistance, but also increases the load on the motor due to the increased weight and resistance of the sweeping plate, and may even lead to accelerated wear of the transmission components. Therefore, we propose a towed plankton monitoring device. Utility Model Content

[0005] The technical problem to be solved by this application is that during the long-term process of sweeping the plankton and debris, some sticky debris tends to adhere to the surface of the sweeping plate and inside the through holes, causing blockage of the through holes. This not only undermines the design function of reducing water flow resistance, but also increases the load on the motor due to the increased weight of the sweeping plate and the increased resistance, and may even lead to accelerated wear of the transmission components.

[0006] To address the aforementioned technical problems, this application provides a towed planktonic monitoring device, comprising a detection hull, an installation plate rotatably mounted at the rear end of the detection hull, and a sweeping plate rotatably mounted at the end of the installation plate away from the detection hull. The sweeping plate is driven by a drive box inside the detection hull, and a high-pressure rinsing mechanism is also provided on the side of the detection hull near the sweeping plate. The high-pressure rinsing mechanism is used to rinse the two sides of the sweeping plate.

[0007] In some embodiments, the high-pressure flushing mechanism includes support plates disposed on both sides of the inspection hull, a connecting pipe rotatably installed between the two support plates, and extension pipes provided at both ends of the connecting pipe on the side near the sweeping plate, with high-pressure nozzles provided at the ends of the two extension pipes.

[0008] In some embodiments, each of the two high-pressure nozzles is provided with a nozzle, the nozzle of each high-pressure nozzle is inclined to both sides of the sweeping plate, and the nozzle of each high-pressure nozzle is configured as a fan-shaped atomizing nozzle.

[0009] In some embodiments, the high-pressure flushing mechanism further includes a miniature water pump mounted on a mounting plate. The output end of the miniature water pump is provided with a water inlet pipe, and the end of the water inlet pipe away from the miniature water pump is connected to a connecting pipe. One side of the miniature water pump is provided with a water outlet, and the input end of the miniature water pump is provided with a water inlet.

[0010] In some embodiments, the scanning plate has several through holes.

[0011] In some embodiments, a flow guiding mechanism is provided inside each of the plurality of through holes. The flow guiding mechanism includes a flow guiding tube, and a plurality of spiral blades are provided on the inner wall of the flow guiding tube. The spiral blades are evenly distributed on the inner wall of the flow guiding tube.

[0012] In some embodiments, both ends of the guide tube are provided with arc-shaped sealing rings, and the opposite side of the two arc-shaped sealing rings is in contact with the surface of the sweeping plate.

[0013] This utility model has at least the following beneficial effects:

[0014] 1. In this utility model, a high-pressure flushing mechanism is installed on the hull of the inspection vessel near the sweeping plate, allowing the high-pressure flushing mechanism to act on the sweeping plate at close range. The high-pressure flushing mechanism includes a micro water pump and two high-pressure nozzles, where the micro water pump is the core power component, which can pressurize the water and deliver it to the high-pressure nozzles. The two high-pressure nozzles are respectively inclined, and the inclination angle is adapted to the width and surface curvature of the sweeping plate, so that it can accurately align with both sides of the sweeping plate and cover the entire width range of the sweeping plate. When the micro water pump is started, the pressurized water is delivered to the two high-pressure nozzles through the pipeline, forming a high-pressure water jet that sprays onto both sides of the sweeping plate, washing and cleaning the sticky algae, oil stains and other debris attached to the surface, preventing the accumulation of debris from affecting the swing of the sweeping plate, and ensuring the coordinated work of the sweeping plate and the inspection vessel.

[0015] 2. In this utility model, by opening several through holes in the sweeping plate, water can flow through the through holes when the sweeping plate moves the garbage, reducing the water resistance when the sweeping plate moves. Several guide tubes are set in the through holes, and the guide tubes are fixedly connected to the inner wall of the through holes to ensure that the water can flow through the guide tubes stably. Spiral blades are evenly arranged inside the guide tubes, and the spiral direction of the spiral blades is adapted to the direction of water flow. When water passes through the inside of the guide tube, it will form a vortex water flow under the guidance of the spiral blades. The centrifugal force and scouring force generated by the vortex water flow can clean the fine impurities remaining on the inner wall of the guide tube and avoid blockage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;

[0018] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the sweeping plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the flow guiding mechanism of this utility model.

[0021] In the diagram: 1. Inspection hull; 2. Mounting plate; 3. Sweeping plate; 4. High-pressure flushing mechanism; 41. Support plate; 42. Connecting pipe; 43. Extension pipe; 44. High-pressure nozzle; 45. Water inlet pipe; 46. Miniature water pump; 5. Water outlet; 6. Water inlet; 7. Flow guiding mechanism; 71. Flow guiding pipe; 72. Arc-shaped sealing ring; 73. Spiral blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-5 This utility model provides a technical solution: a towed plankton monitoring device, including a detection hull 1, an installation plate 2 rotatably mounted at the rear end of the detection hull 1, and a sweeping plate 3 rotatably mounted at the end of the installation plate 2 away from the detection hull 1. The sweeping plate 3 is driven by a drive box inside the detection hull 1. A high-pressure rinsing mechanism 4 is also provided on the side of the detection hull 1 near the sweeping plate 3. The high-pressure rinsing mechanism 4 is used to rinse the two sides of the sweeping plate 3. The high-pressure rinsing mechanism 4 includes support plates 41 arranged on both sides of the detection hull 1, and a connecting pipe 42 rotatably mounted between the two support plates 41. The connecting pipe 42 is close to the sweeping plate. Both ends of one side of the broom plate 3 are provided with extension pipes 43, and the ends of the two extension pipes 43 are provided with high-pressure nozzles 44. The two high-pressure nozzles 44 are provided with nozzles. The nozzles of the high-pressure nozzles 44 are inclined towards both sides of the broom plate 3. The nozzles of the high-pressure nozzles 44 are set as fan-shaped atomizing nozzles. The high-pressure rinsing mechanism 4 also includes a micro water pump 46 set on the mounting plate 2. The output end of the micro water pump 46 is provided with a water inlet pipe 45. The end of the water inlet pipe 45 away from the micro water pump 46 is connected to the connecting pipe 42. The side of the micro water pump 46 is provided with a water outlet 5, and the input end of the micro water pump 46 is provided with a water inlet 6.

[0024] A mounting plate 2 is rotatably mounted on the rear end of the detection vessel hull 1. A sweeping plate 3 is rotatably mounted on the end of the mounting plate 2 away from the detection vessel hull 1. The sweeping plate 3 can rotate with the rotation of the mounting plate 2. The sweeping plate 3 is driven to swing by a drive box inside the detection vessel hull 1 to move planktonic organisms or garbage on the water surface. To prevent debris from adhering to the surface of the sweeping plate 3 and affecting its use, a high-pressure washing mechanism 4 is also provided on the side of the detection vessel hull 1 near the sweeping plate 3. The high-pressure washing mechanism 4 is used to wash the two sides of the sweeping plate 3. The high-pressure washing mechanism 4 includes two support plates 41 set on both sides of the detection vessel hull 1. The two support plates 41 are vertically fixed on the detection vessel hull 1 and are at the same horizontal level. A connecting pipe 42 is rotatably installed between the two support plates 41. The connecting pipe 42 can rotate slightly around its own axis to facilitate the adjustment of the angle of subsequent components. Both ends of the connecting pipe 42 near the sweeping plate 3 are integrally formed with extension pipes 43, which are connected to the interior of the connecting pipe 42. The ends of the two extension pipes 43 are fixedly installed with high-pressure nozzles 44 by threads. Both high-pressure nozzles 44 are provided with nozzles, and the nozzles of the high-pressure nozzles 44 are inclined towards the sides of the sweeping plate 3. The inclination angle is adapted to ensure that the nozzles can accurately align with the sides of the sweeping plate 3 without cleaning dead corners. At the same time, the nozzles of the high-pressure nozzles 44 are set as fan-shaped atomizing nozzles, which can expand the water flow coverage and improve rinsing efficiency.

[0025] The high-pressure rinsing mechanism 4 also includes a miniature water pump 46 bolted to the mounting plate 2. The miniature water pump 46 serves as a power output component, providing driving force for the entire rinsing action. An inlet pipe 45 is fixed to the output end of the miniature water pump 46 via a pipe clamp. The end of the inlet pipe 45 furthest from the miniature water pump 46 is connected to the middle of the connecting pipe 42, ensuring that water flow is evenly distributed to both ends of the connecting pipe 42. An outlet 5 is provided on one side of the miniature water pump 46 to discharge residual water from inside the pump. The input end of the miniature water pump 46 is... It is equipped with a water inlet 6, which can directly draw water to provide a stable water source for rinsing. When the micro water pump 46 is started, the water flows into the pump through the water inlet 6, is pressurized, and is delivered to the connecting pipe 42 through the water inlet pipe 45. Then, it is distributed to two high-pressure nozzles 44 through the extension pipe 43, and finally sprayed out from the fan-shaped atomizing nozzle to effectively clean the sticky garbage and impurities attached to both sides of the sweeping plate 3, prevent the accumulation of debris from affecting the normal swing function of the sweeping plate 3, and at the same time ensure the collaborative working efficiency between the inspection hull 1 and the sweeping plate 3.

[0026] Example 2: Based on Example 1, as follows Figures 1-5As shown, the sweeping plate 3 has several through holes, and each of the through holes is equipped with a flow guiding mechanism 7. The flow guiding mechanism 7 includes a flow guiding tube 71. The inner wall of the flow guiding tube 71 is provided with several spiral blades 73. The spiral blades 73 are evenly distributed on the inner wall of the flow guiding tube 71. Both ends of the flow guiding tube 71 are provided with arc-shaped sealing rings 72. The opposite side of the two arc-shaped sealing rings 72 is in contact with the surface of the sweeping plate 3.

[0027] The sweeping plate 3 has several through holes evenly distributed along its length to ensure smooth water flow. This significantly reduces the resistance encountered by the sweeping plate 3 as it moves in the water, preventing excessive water resistance from affecting the unmanned vessel's speed or increasing power consumption. Each of the through holes is equipped with a flow guiding mechanism 7, which includes a flow guiding pipe 71. The outer diameter of the flow guiding pipe 71 matches the inner diameter of the through hole and is fixedly connected to the inner wall of the through hole by welding or high-strength bonding, ensuring that the flow guiding pipe 71 does not shift under water flow impact. The inner wall of the flow guiding pipe 71 is provided with several spiral blades 73. The spiral blades 73 are made of the same corrosion-resistant material as the flow guiding pipe 71 and are manufactured using an integral molding process. The spiral blades 73 are evenly distributed on the inner wall of the flow guiding pipe 71, with consistent spacing between adjacent spiral blades 73. Their spiral angles have been optimized by fluid dynamics. When water flows through the inside of the guide pipe 71, it forms a stable vortex-shaped water flow under the guidance of the spiral blades 73. This vortex-shaped water flow can generate a strong centrifugal flushing force, which can thoroughly clean any small debris and dirt that may remain on the inner wall of the guide pipe 71, effectively preventing the guide pipe 71 from becoming blocked and ensuring smooth water flow. Both ends of the guide pipe 71 are equipped with arc-shaped sealing rings 72. The arc-shaped sealing rings 72 are made of elastic rubber, and their inner diameter matches the outer diameter of the guide pipe 71. They are fitted onto both ends of the guide pipe 71 with an interference fit, and the opposite side of the two arc-shaped sealing rings 72 is tightly fitted to the surface of the sweeping plate 3, completely covering the connection gap between the guide pipe 71 and the edge of the through hole, avoiding the formation of corner areas, thereby preventing dirt from hiding inside the corners, further improving the cleanliness of the through hole and the guide pipe 71, and extending the overall service life of the sweeping plate 3 and the guide mechanism 7.

[0028] Based on the above embodiments, the following is the complete working principle of the above embodiments: In use, the towed plankton monitoring equipment is first deployed to the target water area, and the power system of the detection vessel 1 is started to put the equipment into the monitoring operation state; at the same time, the drive box inside the detection vessel 1 starts to work, providing power to the sweeping plate 3, driving the sweeping plate 3 to swing back and forth with the rotation of the mounting plate 2. The swinging of the sweeping plate 3 pushes the plankton or garbage on the water surface to both sides of the vessel, avoiding garbage from covering the monitoring equipment carried on the detection vessel 1, preventing the monitoring equipment from being blocked, and ensuring that the monitoring equipment can collect data normally;

[0029] During the swinging operation of the sweeping plate 3, the micro water pump 46 on the mounting plate 2 is started simultaneously. The micro water pump 46 draws water directly from the water area through the inlet 6 at the input end, pressurizes the water, and then delivers it to the connecting pipe 42 between the support plates 41 on both sides of the detection hull 1 through the inlet pipe 45 at the output end. The water flow is then diverted through the connecting pipe 42 to the extension pipes 43 at both ends, and finally sprayed out through the high-pressure nozzle 44 at the end of the extension pipe 43. Since the nozzle of the high-pressure nozzle 44 is inclined to both sides of the sweeping plate 3 and is a fan-shaped atomizing nozzle, the sprayed high-pressure atomized water flow can accurately cover both sides of the sweeping plate 3 surface, washing and cleaning the sticky garbage and impurities attached to the surface of the sweeping plate 3, preventing the accumulation of debris from affecting the normal swinging of the sweeping plate 3. If there is residual water inside the micro water pump 46, it can be discharged through the outlet 5 on one side.

[0030] Meanwhile, the several through holes on the sweeping plate 3 allow water to flow smoothly through the sweeping plate 3 during the movement of the equipment, greatly reducing the resistance of the sweeping plate 3 in the water and avoiding affecting the speed of the detection vessel 1 or increasing power consumption. In the flow guiding mechanism 7 inside the through holes, the spiral blades 73 on the inner wall of the flow guiding pipe 71 guide the flowing water to form a stable vortex-shaped flow. The centrifugal scouring force generated by this vortex flow can thoroughly clean the fine debris and dirt remaining on the inner wall of the flow guiding pipe 71, preventing the flow guiding pipe 71 from becoming blocked. In addition, the arc-shaped sealing rings 72 at both ends of the flow guiding pipe 71 fit tightly with the surface of the sweeping plate 3, filling the gap between the flow guiding pipe 71 and the edge of the through holes, preventing the formation of corner areas where dirt can hide, further ensuring the smooth flow and cleanliness of the sweeping plate 3, and ensuring that the entire equipment can continuously and stably complete the plankton monitoring operation.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A towed plankton monitoring device, comprising a detection hull (1), characterized in that: A mounting plate (2) is rotatably mounted on the rear end of the detection hull (1). A sweeping plate (3) is rotatably mounted on the end of the mounting plate (2) away from the detection hull (1). The sweeping plate (3) is driven by a drive box inside the detection hull (1). A high-pressure rinsing mechanism (4) is also provided on the side of the detection hull (1) near the sweeping plate (3). The high-pressure rinsing mechanism (4) is used to rinse the two sides of the sweeping plate (3).

2. The towed plankton monitoring device according to claim 1, characterized in that: The high-pressure flushing mechanism (4) includes support plates (41) on both sides of the inspection hull (1), a connecting pipe (42) is rotatably installed between the two support plates (41), and extension pipes (43) are provided at both ends of the connecting pipe (42) on the side near the sweeping plate (3), and high-pressure nozzles (44) are provided at the ends of the two extension pipes (43).

3. The towed plankton monitoring device according to claim 2, characterized in that: Both high-pressure nozzles (44) are provided with nozzles, and the nozzles of the high-pressure nozzles (44) are inclined to both sides of the sweeping plate (3). The nozzles of the high-pressure nozzles (44) are configured as fan-shaped atomizing nozzles.

4. The towed plankton monitoring device according to claim 2, characterized in that: The high-pressure flushing mechanism (4) also includes a miniature water pump (46) mounted on the mounting plate (2). The output end of the miniature water pump (46) is provided with an inlet pipe (45). The end of the inlet pipe (45) away from the miniature water pump (46) is connected to the connecting pipe (42). The side of the miniature water pump (46) is provided with an outlet (5), and the input end of the miniature water pump (46) is provided with an inlet (6).

5. The towed plankton monitoring device according to claim 1, characterized in that: The sweeping plate (3) has several through holes.

6. The towed plankton monitoring device according to claim 5, characterized in that: Each of the multiple through holes is provided with a flow guiding mechanism (7). The flow guiding mechanism (7) includes a flow guiding tube (71). The inner wall of the flow guiding tube (71) is provided with a number of spiral blades (73). The spiral blades (73) are evenly distributed on the inner wall of the flow guiding tube (71).

7. The towed plankton monitoring device according to claim 6, characterized in that: Both ends of the guide tube (71) are provided with arc-shaped sealing rings (72), and the opposite side of the two arc-shaped sealing rings (72) is in contact with the surface of the sweeping plate (3).

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