Underwater suspension in-situ biological monitoring device

Abstract

The utility model discloses an underwater suspension in-situ biological monitoring device which comprises a buoy platform body and a plankton imager body, an object passing hole is vertically formed in the edge position of the top face of the plankton imager body, and the object passing hole is a through hole in the vertical direction. The plankton imager body penetrates through the object passing hole in a coaxial clearance fit mode, and the bottom of the plankton imager body extends out of the bottom end of the object passing hole. The plankton imaging device has the advantages that the height adjusting assembly and the plankton imaging device body can be detachably and coaxially fixed to the object passing hole of the buoy platform body in the mode that the matching base is in vertical sliding fit with the matching groove and the limiting rod is in longitudinal sliding fit with the limiting hole; the combination mode of the height adjusting assembly, the plankton imager body and the buoy platform body is simple and easy to operate, and then the height adjusting assembly and the plankton imager body can be conveniently combined at the position of the object passing hole of the buoy platform body together.

Description

Technical Field

[0001] The utility model relates to the field of underwater suspended in-situ biological monitoring auxiliary components, in particular to an underwater suspended in-situ biological monitoring device. Background Art

[0002] Plankton is a key component of the marine ecosystem and plays a core role in the biogeochemical cycle and the carbon cycle. It is also an important basis for marine fishery and aquaculture production. Plankton monitoring has always relied on manual net collection and optical microscope analysis, which is not only time-consuming and labor-intensive, but also faces the dilemma of a shortage of identification talents. Traditional methods cannot meet the needs of accurate, timely, continuous and sustainable plankton monitoring. Therefore, a plankton imager was designed, which adopts an orthogonal layered flash shadowless lighting design. It can not only achieve high-quality underwater true color photography of marine plankton individuals, but also reduce the leakage of illumination light to the underwater local environment, and avoid the observation deviation caused by the aggregation of zooplankton due to phototaxis to the greatest extent.

[0003] However, when the plankton imager is installed on the buoy platform, a hole is usually reserved on the buoy platform for the plankton imager to pass through smoothly. At the same time, the buoy platform will set holes on the periphery of the hole. Then, after the plankton imager passes through the hole, it is fixed by inserting bolts through the top connecting flange and the holes on the periphery of the hole. This makes it inconvenient to disassemble and assemble the plankton imager, and it is not convenient to disassemble it for inspection and maintenance later. At the same time, the height of the plankton imager extended into the water is fixed, which makes it impossible to fine-tune the diving position height of the plankton imager, which will affect the monitoring effect of underwater suspended in-situ organisms. Utility Model Content

[0004] The purpose of the utility model is to provide an underwater suspended in-situ biological monitoring device in order to solve the above-mentioned problem. The height adjustment component and the plankton imager body can be detachably and coaxially fixed to the object hole of the buoy platform body by means of vertical sliding cooperation between the matching seat and the matching groove and longitudinal sliding cooperation between the limiting rod and the limiting hole. The combination of the height adjustment component, the plankton imager body and the buoy platform body is simple and easy to operate, as described below for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an underwater suspended in-situ biological monitoring device, comprising a buoy platform body and a plankton imaging device body, wherein a hole for passing objects is vertically provided at the edge of the top surface of the plankton imaging device body, and the hole for passing objects is a through hole in the vertical direction, and the plankton imaging device body passes through the hole for passing objects in a coaxial clearance fit manner, and the bottom of the plankton imaging device body extends out of the bottom end of the hole for passing objects;

[0007] A height adjustment component for fine-tuning the diving depth of the plankton imager body is coaxially fixed to the top of the plankton imager body, and the height adjustment component is coaxially gap-matched with the object-passing hole;

[0008] The top surface of the buoy platform body is installed with disassembly and assembly components in front and behind the object passing hole, part of the disassembly and assembly components is fixedly connected to the height adjustment component, and the height adjustment component and the plankton imager body are detachably connected to the buoy platform body through the disassembly and assembly components.

[0009] Preferably, the height adjustment assembly includes a flange and a fixed ring plate, the flange is coaxially fixed to the outer periphery of the top end of the plankton imager body, a plurality of connecting holes are vertically opened around the flange, and connecting screws are coaxially inserted through the connecting holes in a vertical sliding manner, the fixed ring plate is coaxially arranged above the object passing hole, a plurality of insertion holes are vertically opened around the fixed ring plate, the insertion holes are coaxially aligned with the connecting holes, and the tops of the connecting screws are coaxially inserted through the corresponding insertion holes in a vertical sliding manner, and at the same time, the connecting screws extend out of the corresponding connecting holes and the positions at both ends of the insertion holes are coaxially engaged with limiting nuts.

[0010] Preferably, the peripheries of the flange and the fixing ring plate are coaxially fitted with the inner periphery of the through hole, and the top end of the connecting screw is coaxially installed with an anti-drop cap whose outer diameter is larger than the aperture of the through hole.

[0011] Preferably, the disassembly and assembly components include a wing plate and a fixing sleeve, the wing plate is horizontally extended and fixed at the front and rear positions of the periphery of the fixing ring plate, and the bottom surfaces of the wing plates at the front and rear positions are vertically fixed with matching seats, and the outer end surfaces of the matching seats at the front and rear positions that are away from each other are longitudinally provided with limiting holes, the top surface of the buoy platform body is vertically fixed with the fixing sleeve at the front and rear positions of the periphery of the passing hole, and the top surface of the fixing sleeve is vertically provided with matching grooves, and the matching grooves correspond one-to-one with the matching seats and are vertically slidably matched.

[0012] Preferably, the outer end surfaces of the fixing sleeves at the front and rear positions that are away from each other are both provided with mounting holes in the longitudinal direction, the mounting holes are both vertically connected with the corresponding matching grooves, and the mounting holes are both longitudinally coaxial with the corresponding limiting holes, the mounting holes are both longitudinally coaxially slidably matched with limiting rods, and the inner ends of the limiting rods at the front and rear positions that are close to each other are longitudinally slidably matched with the corresponding limiting holes, the outer ends of the limiting rods at the front and rear positions that are away from each other extend out of the corresponding outer end surfaces of the fixing sleeve and are coaxially fixed with handles, the part of the limiting rod located between the corresponding handle and the outer end surface of the fixing sleeve is coaxially gap-matched with a spring, and the two ends of the spring are respectively fixedly connected to the corresponding handle and the outer end surface of the fixing sleeve.

[0013] Preferably, the horizontal cross-section shapes of the mating seat and the mating groove are both rectangular.

[0014] Preferably, the matching grooves are all blind grooves in the vertical direction, and the bottom ends of the matching seats are in close contact with the bottom ends of the corresponding matching grooves.

[0015] Preferably, a handle for easy holding is fixedly mounted on the top surface of the wing plate.

[0016] The above-mentioned underwater suspended in-situ biological monitoring device is used, specifically when the plankton imager body is combined and disassembled with the object passing hole of the buoy platform body, when combined, the height adjustment component and the plankton imager body can be detachably and coaxially fixed to the object passing hole of the buoy platform body by means of vertical sliding cooperation between the matching seat and the matching groove and longitudinal sliding cooperation between the limiting rod and the limiting hole. The combination of the height adjustment component and the plankton imager body and the buoy platform body is simple and easy to operate, which makes it easy to adjust the height adjustment component and the plankton imager body to the object passing hole of the buoy platform body. The height adjustment component and the plankton imager body are combined together at the object passing hole position of the buoy platform body to monitor underwater suspended in-situ organisms. When disassembling, the limiting rod only needs to be pulled out of the limiting hole to make the matching seat vertically disengage from the matching groove to separate the height adjustment component and the plankton imager body from the buoy platform body and extract them from the object passing hole position. The separation method of the height adjustment component and the plankton imager body from the buoy platform body is simple and easy to operate, which is convenient for the later separation of the plankton imager body. The body is detached for inspection and maintenance, and since the height adjustment component is coaxially installed on the top of the plankton imager body, when the height of the plankton imager body is adjusted, the limit nuts corresponding to the upper and lower positions of the insertion holes are turned away from each other. During this process, the plankton imager body will rely on its own gravity to drive the connecting screw to slide vertically along the guide hole, so that the position height of the plankton imager body can be fine-tuned downward. If the position height of the plankton imager body needs to be fine-tuned upward, the top of the connecting screw can be held to lift it. The plankton imager body rises, and at the same time, when the plankton imager body rises to a suitable position height, the connecting screw is kept stationary and the limit nuts at the upper and lower positions of the through holes are tightened on the surface of the fixed ring plate, so that the position height of the plankton imager body can be fine-tuned by vertically sliding the connecting screw along the through hole and tightening the limit nuts, thereby facilitating adaptive adjustment of the diving depth of the plankton imager body and adjusting the plankton imager body to have a stable underwater suspended in-situ biological monitoring effect.

[0017] The beneficial effects are as follows: 1. The utility model can detachably and coaxially fix the height adjustment component and the plankton imaging device body to the object passing hole of the buoy platform body by means of the vertical sliding cooperation between the matching seat and the matching groove and the longitudinal sliding cooperation between the limiting rod and the limiting hole. The combination of the height adjustment component, the plankton imaging device body and the buoy platform body is simple and easy to operate, and then it is convenient to combine the height adjustment component and the plankton imaging device body together at the object passing hole position of the buoy platform body to monitor the underwater suspended in-situ organisms;

[0018] 2. Simply pull the limit rod out of the limit hole to make the mating seat vertically out of the mating groove, and separate the height adjustment assembly and the plankton imaging device from the buoy platform body and extract them from the object hole. The separation method of the height adjustment assembly and the plankton imaging device from the buoy platform body is simple and easy to operate, which is convenient for the detachment of the plankton imaging device body for inspection and maintenance at a later stage.

[0019] 3. A height adjustment assembly is coaxially installed on the top of the plankton imager body, so that the position height of the plankton imager body can be fine-tuned by connecting the screw rod to slide vertically along the insertion hole and tightening the limit nut, thereby facilitating adaptive adjustment of the diving depth of the plankton imager body and adjusting the plankton imager body to have a stable underwater suspended in-situ biological monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is an overall axonometric schematic diagram of the utility model;

[0022] Figure 2 This utility model Figure 1 Cross-section diagram Figure 1 ;

[0023] Figure 3 This utility model Figure 2 A local enlarged view of point A;

[0024] Figure 4 This utility model Figure 1 Cross-section diagram Figure 2 ;

[0025] Figure 5 This utility model Figure 4A partial enlarged view of point B;

[0026] Figure 6 This utility model Figure 1 The front view of the external image;

[0027] Figure 7 This utility model Figure 1 External view from above.

[0028] The following are the descriptions of the reference numerals:

[0029] 1. Buoy platform body; 101. Pass-through hole; 2. Disassembly and assembly components; 201. Handle; 202. Handle; 203. Wing plate; 204. Fixing sleeve; 205. Spring; 206. Matching seat; 207. Matching groove; 208. Limit rod; 209. Mounting hole; 2010. Limit hole; 3. Plankton imager body; 4. Height adjustment component; 401. Anti-drop cap; 402. Connecting screw; 403. Fixing ring plate; 404. Through hole; 405. Limit nut; 406. Flange; 407. Connecting hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0031] See also Figure 1-Figure 7As shown, the utility model provides an underwater suspended in-situ biological monitoring device, including a buoy platform body 1 and a plankton imager body 3, a passing hole 101 is vertically opened at the edge of the top surface of the plankton imager body 3, and the passing hole 101 is a through hole in the vertical direction, the plankton imager body 3 passes through the passing hole 101 in a coaxial clearance fit manner and the bottom extends out of the bottom end of the passing hole 101, the top of the plankton imager body 3 is coaxially fixed with a height adjustment component 4 for fine-tuning the diving depth of the plankton imager body 3, and the height adjustment component 4 is coaxially clearance fit with the passing hole 101, specifically, the height adjustment component 4 includes a flange 406 and a fixed ring plate 403, the top periphery of the plankton imager body 3 is coaxially fixed with a flange 406, and a plurality of connecting rings are vertically opened around the flange 406. The connecting holes 407 are coaxially inserted with connecting screws 402 in a vertical sliding manner. The fixing ring plate 403 is coaxially arranged above the object-passing hole 101. A plurality of insertion holes 404 are vertically opened around the fixing ring plate 403. The insertion holes 404 are coaxially aligned with the connecting holes 407 respectively, and the tops of the connecting screws 402 are coaxially passed through the corresponding insertion holes 404 in a vertical sliding manner. At the same time, the connecting screws 402 extend out of the corresponding connecting holes 407 and the positions at both ends of the insertion holes 404 are coaxially engaged with the limiting nuts 405. The purpose of such a setting is that the position height of the plankton imager body 3 can be fine-tuned by vertically sliding the connecting screw 402 along the insertion holes 404 and tightening the limiting nuts 405, so as to facilitate adaptive adjustment of the diving depth of the plankton imager body 3.

[0032] See also Figure 1-Figure 5As shown, the top surface of the buoy platform body 1 is installed with a disassembly assembly 2 at the front and rear positions of the object passing hole 101, and part of the disassembly assembly 2 is fixedly connected to the height adjustment assembly 4, and the height adjustment assembly 4 and the plankton imaging device body 3 are detachably connected to the buoy platform body 1 through the disassembly assembly 2. Specifically, the disassembly assembly 2 includes a wing plate 203 and a fixing sleeve 204, and the wing plates 203 are horizontally extended and fixed at the front and rear positions of the outer periphery of the fixing ring plate 403, and the bottom surfaces of the wing plates 203 at the front and rear positions are vertically fixed with matching seats 206, and the matching seats 206 at the front and rear positions are far away from each other. The outer end surfaces of the buoy platform body 1 are all provided with limit holes 2010 in the longitudinal direction. The top surface of the buoy platform body 1 is vertically fixed with a fixing sleeve 204 at the front and rear positions of the periphery of the through hole 101, and the top surface of the fixing sleeve 204 is vertically provided with a matching groove 207. The matching groove 207 corresponds to the matching seat 206 one by one and is vertically slidably matched. The outer end surfaces of the fixing sleeves 204 at the front and rear positions away from each other are longitudinally provided with mounting holes 209, and the mounting holes 209 are vertically connected with the corresponding matching grooves 207, and the mounting holes 209 are longitudinally coaxial with the corresponding limit holes 2010. The mounting holes 209 are longitudinally coaxially matched. The limiting rod 208 is combined, and the inner ends of the limiting rods 208 at the front and rear positions that are close to each other are longitudinally slidably matched with the corresponding limiting holes 2010, and the outer ends of the limiting rods 208 at the front and rear positions that are far away from each other are extended out of the outer end surface of the corresponding fixing sleeve 204 and are coaxially fixed with the handle 202. The part of the limiting rod 208 located between the corresponding handle 202 and the outer end surface of the fixing sleeve 204 is coaxially gap-matched with a spring 205, and the two ends of the spring 205 are respectively fixedly connected to the corresponding handle 202 and the outer end surface of the fixing sleeve 204. The function of this arrangement is to vertically slide and match the matching seat 206 with the matching groove 207. The combination of the limit rod 208 and the limit hole 2010 in a longitudinally sliding manner can removably and coaxially fix the height adjustment component 4 and the plankton imager body 3 on the object passing hole 101 of the buoy platform body 1. At the same time, the limit rod 208 only needs to be pulled out of the limit hole 2010 to allow the matching seat 206 to vertically disengage from the matching groove 207, thereby separating the height adjustment component 4 and the plankton imager body 3 from the buoy platform body 1 and extracting them from the object passing hole 101. The combination and disassembly of the height adjustment component 4 and the plankton imager body 3 with the buoy platform body 1 are simple and easy to operate.

[0033] See also Figure 1-Figure 5As shown, the height adjustment component 4 and the disassembly and assembly component 2 are optimized as follows. Specifically for the height adjustment component 4, the outer periphery of the flange 406 and the fixed ring plate 403 are coaxially matched with the inner periphery of the through hole 101, and the top of the connecting screw 402 is coaxially installed with an anti-slip cap 401 whose outer diameter is larger than the aperture of the insertion hole 404. Such a setting first facilitates the flange 406 to pass through the through hole 101 smoothly, and at the same time facilitates the flange 406 and the fixed ring plate 403 to have good consistency in appearance. Moreover, since the top of the connecting screw 402 is provided with an anti-slip cap 401, the setting of the anti-slip cap 401 can prevent the connecting screw 402 and the fixed ring plate 403 from accidentally separating from each other.

[0034] Specifically for the disassembly and assembly assembly 2, the horizontal cross-sectional shapes of the mating seat 206 and the mating groove 207 are both rectangular, so that the mating seat 206 has a good positioning and guiding design when it slides vertically along the mating groove 207. At the same time, the mating groove 207 can be optionally blind in the vertical direction, and the bottom end of the mating seat 206 is in contact with the bottom end of the corresponding mating groove 207. With such an arrangement, in the process of the mating seat 206 sliding vertically down along the mating groove 207, when the limiting hole 2010 slides vertically with the mating seat 206 to be coaxial with the limiting rod 208, an obvious prompt can be given by the bottom end of the mating seat 206 contacting the bottom of the mating groove 207. Further, optionally, the top surface of the wing plate 203 is fixedly installed with a handle 201 for easy holding. With such an arrangement, it is convenient to move the height adjustment assembly 4 and the plankton imaging device body 3 by applying force by holding the handle 201.

[0035] With the above structure, when the plankton imaging device body 3 is assembled and disassembled in the object passing hole 101 of the buoy platform body 1, when the assembly is performed, the height adjustment component 4 and the plankton imaging device body 3 can be detachably coaxially fixed to the object passing hole 101 of the buoy platform body 1 by means of the vertical sliding fit between the matching seat 206 and the matching groove 207 and the longitudinal sliding fit between the limiting rod 208 and the limiting hole 2010. The assembly method of the height adjustment component 4 and the plankton imaging device body 3 with the buoy platform body 1 is simple and easy to operate, which makes it easy to assemble the height adjustment component 4 and the plankton imaging device body 3 and the buoy platform body 1. The plankton imaging device body 3 is combined with the object hole 101 of the buoy platform body 1 to monitor the underwater suspended in-situ organisms. When disassembling, it is only necessary to pull the limit rod 208 out of the limit hole 2010 to make the matching seat 206 vertically disengage from the matching groove 207, so that the height adjustment component 4 and the plankton imaging device body 3 are separated from the buoy platform body 1 and extracted from the object hole 101. The separation method of the height adjustment component 4 and the plankton imaging device body 3 from the buoy platform body 1 is simple and easy to operate, which is convenient for the later disassembly of the plankton imaging device body 3 for inspection Maintenance, and since a height adjustment component 4 is coaxially installed on the top of the plankton imager body 3, when adjusting the height of the plankton imager body 3, the limit nuts 405 corresponding to the upper and lower positions of the insertion holes 404 are turned away from each other. During this process, the plankton imager body 3 will rely on its own gravity to drive the connecting screw 402 to slide vertically along the guide hole, so that the position height of the plankton imager body 3 can be fine-tuned downward. If the position height of the plankton imager body 3 needs to be fine-tuned upward, the top of the connecting screw 402 can be held to lift the plankton imager body The body 3 rises, and at the same time, when the plankton imaging device body 3 rises to a suitable position height, the connecting screw 402 is kept stationary and the limit nuts 405 at the upper and lower positions of the insertion hole 404 are tightened on the surface of the fixed ring plate 403, so that the position height of the plankton imaging device body 3 can be fine-tuned by vertically sliding the connecting screw 402 along the insertion hole 404 and tightening the limit nuts 405, which facilitates adaptive adjustment of the diving depth of the plankton imaging device body 3 and facilitates adjustment of the plankton imaging device body 3 to have a stable underwater suspended in-situ biological monitoring effect.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An underwater suspended in-situ biological monitoring device, comprising a buoy platform body (1) and a plankton imaging device body (3), characterized in that: A passing hole (101) is vertically provided at the edge of the top surface of the plankton imaging device body (3), and the passing hole (101) is a through hole in the vertical direction, and the plankton imaging device body (3) passes through the passing hole (101) in a coaxial clearance fit manner, and the bottom of the passing hole (101) extends out of the bottom end of the passing hole (101); A height adjustment component (4) for fine-tuning the diving depth of the plankton imager body (3) is coaxially fixed to the top of the plankton imager body (3), and the height adjustment component (4) is coaxially clearance-matched with the object-passing hole (101); The top surface of the buoy platform body (1) is provided with disassembly and assembly components (2) at positions before and after the object-passing hole (101); a portion of the disassembly and assembly component (2) is fixedly connected to the height adjustment component (4); and the height adjustment component (4) and the plankton imaging device body (3) are detachably connected to the buoy platform body (1) via the disassembly and assembly component (2).

2. The underwater suspended in-situ biological monitoring device according to claim 1, characterized in that: The height adjustment assembly (4) comprises a flange (406) and a fixed ring plate (403), the flange (406) is coaxially fixed to the outer periphery of the top of the plankton imaging device body (3), a plurality of connecting holes (407) are vertically opened around the flange (406), and the connecting holes (407) are coaxially inserted with connecting screws (402) in a vertical sliding fit manner, and the fixed ring plate (403) is coaxially arranged above the object passing hole (101). The fixing ring plate (403) is provided with a plurality of through holes (404) in a vertical direction around the fixing ring plate (403), the through holes (404) are coaxially aligned with the connecting holes (407), and the tops of the connecting screws (402) are coaxially passed through the corresponding through holes (404) in a vertical sliding manner, and the connecting screws (402) extend out of the positions corresponding to the connecting holes (407) and the two ends of the through holes (404) and are coaxially engaged with the limiting nuts (405).

3. The underwater suspended in-situ biological monitoring device according to claim 2, characterized in that: The outer peripheries of the flange (406) and the fixing ring plate (403) and the inner periphery of the through hole (101) are coaxially matched, and the top end of the connecting screw (402) is coaxially mounted with an anti-drop cap (401) whose outer diameter is larger than the aperture of the through hole (404).

4. An underwater suspended in-situ biological monitoring device according to claim 2 or 3, characterized in that: The disassembly assembly components (2) each include a wing plate (203) and a fixing sleeve (204); the wing plate (203) is horizontally extended and fixed at the front and rear positions of the periphery of the fixing ring plate (403); and the bottom surface of the wing plate (203) at the front and rear positions is vertically fixed with a matching seat (206); the outer end surfaces of the matching seats (206) at the front and rear positions that are away from each other are longitudinally provided with a limiting hole (2010); the top surface of the buoy platform body (1) is vertically fixed with the fixing sleeve (204) at the front and rear positions of the periphery of the object passing hole (101); and the top surface of the fixing sleeve (204) is vertically provided with a matching groove (207); the matching groove (207) corresponds one-to-one with the matching seat (206) and is vertically slidably matched.

5. The underwater suspended in-situ biological monitoring device according to claim 4, characterized in that: The outer end surfaces of the fixing sleeves (204) at the front and rear positions that are away from each other are both provided with mounting holes (209) in the longitudinal direction, the mounting holes (209) are both vertically connected with the corresponding matching grooves (207), and the mounting holes (209) are both longitudinally coaxially aligned with the corresponding limiting holes (2010), the mounting holes (209) are both longitudinally coaxially slidably matched with the limiting rods (208), and the inner ends of the limiting rods (208) at the front and rear positions that are close to each other are both aligned with the corresponding limiting holes (2010). 10) longitudinal sliding fit, the outer ends of the limit rods (208) at the front and rear positions that are away from each other both extend out of the outer end surface of the corresponding fixing sleeve (204) and are coaxially fixed with the handle (202), and the part of the limit rod (208) located between the corresponding handle (202) and the outer end surface of the fixing sleeve (204) is coaxially gap-fitted with a spring (205), and the two ends of the spring (205) are respectively fixedly connected to the corresponding handle (202) and the outer end surface of the fixing sleeve (204).

6. The underwater suspended in-situ biological monitoring device according to claim 5, characterized in that: The horizontal cross-sectional shapes of the matching seat (206) and the matching groove (207) are both rectangular.

7. The underwater suspended in-situ biological monitoring device according to claim 6, characterized in that: The matching grooves (207) are all blind grooves in the vertical direction, and the bottom ends of the matching seats (206) are in close contact with the bottom ends of the corresponding matching grooves (207).

8. An underwater suspended in-situ biological monitoring device according to claim 5, 6 or 7, characterized in that: The top surface of the wing plate (203) is fixedly mounted with a handle (201) for easy holding.

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