A capture device for marine environment monitoring

Abstract

The present invention relates to the technical field of seabed sediment sampling, and discloses a capture device for marine environment monitoring, comprising a central tube, a sampling execution component, a peripheral constraint component, and a live release component, wherein the sampling execution component is arranged in the central tube, the peripheral constraint component is located outside the central tube, and the live release component is located above the peripheral constraint component. The present invention specifically provides a capture device for marine environment monitoring that has the ability to drive away seabed organisms and prevents sampled sediments from escaping with the seabed organisms.

Description

Technical Field

[0001] The invention relates to the technical field of seabed sediment sampling, in particular to a capture device for marine environment monitoring. Background Art

[0002] An invention patent with application number 201811117859.5 discloses a seabed sediment sampling device for marine engineering, and specifically discloses the technical solution that "when the sphere touches the arc-shaped slider, it can not only drive the arc-shaped wave plate to rotate, but also make a sound similar to that of beating a gong and a drum, which is convenient for amplifying the vibration frequency of the sound wave on the seawater and increasing the volatility of the water ripples. The spring is then used to complete the reset operation of the wave plate, further driving away the seabed organisms."

[0003] The above technical solution drives away the seabed organisms by means of vibration, but lacks the constraint on the sediments in the process of driving away the seabed organisms, so that the seabed organisms will carry some sediments when escaping, thereby affecting the accuracy of sediment sampling. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a capture device for marine environment monitoring. In order to solve the problem that part of the sediment escapes simultaneously when the existing seabed sediment sampling device drives away the seabed organisms, the present invention proposes a capture device for marine environment monitoring including a peripheral restraint component and a live release component.

[0005] The technical solution adopted by the present invention is as follows: A capture device for marine environment monitoring, including a central tube, a sampling execution component, a peripheral constraint component and a live release component, wherein the sampling execution component is arranged in the central tube, the peripheral constraint component is located outside the central tube, and the live release component is located above the peripheral constraint component.

[0006] Furthermore, a side cavity is opened in the central tube, and the sampling execution component includes a plate spring steel, a connecting straight plate, a bearing seat, an extrusion bent rod, a traction block, a U-shaped frame and a capture electric push rod. The upper end of the plate spring steel is fixedly connected to the top wall of the side cavity, the connecting straight plate is fixedly arranged at the lower end of the plate spring steel, the bearing seat is fixedly arranged in the side cavity, the extrusion bent rod is rotatably arranged in the bearing seat, the extrusion bent rod is fitly connected to the plate spring steel, the traction block is fixedly arranged at the top of the extrusion bent rod, the capture electric push rod is fixedly arranged in the side cavity, the U-shaped frame is fixedly arranged at one end of the capture electric push rod, the U-shaped frame is fitly connected to the traction block, the plate spring steel and the connecting straight plate are provided with rubber edging, and the sampling execution component is symmetrically provided with two groups.

[0007] Furthermore, the living body release component includes a hollow arc-shaped bracket, a hollow top plate, a connecting support rod, an elastic gathering membrane and a countercurrent release unit, the hollow arc-shaped bracket is vertically slidably arranged in the central tube, the hollow top plate is located above the hollow arc-shaped bracket, the connecting support rod is fixedly arranged between the hollow top plate and the hollow arc-shaped bracket, the elastic gathering membrane is fixedly arranged between the hollow top plate and the hollow arc-shaped bracket, and the countercurrent release unit is arranged in the central tube.

[0008] Furthermore, the backflow release unit includes a restraining rope, a proximal double-hole rope buckle, a distal double-hole rope buckle and a connecting spring. The middle part of the restraining rope is fitted on the outside of the elastic gathering membrane. Both ends of the restraining rope are fixedly connected with winding rollers. The two winding rollers at both ends of the restraining rope are concentrically arranged. The proximal double-hole rope buckle and the distal double-hole rope buckle are both slidably arranged on the restraining rope. The connecting spring is fixedly arranged between the proximal double-hole rope buckle and the distal double-hole rope buckle. The restraining rope, the proximal double-hole rope buckle, the distal double-hole rope buckle and the connecting spring are all symmetrically arranged in two up and down, and the winding rollers are arranged in four in a rectangular array.

[0009] Furthermore, the backflow release unit also includes a chassis, a winding motor, a driven shaft, a tightening electric push rod and two transmission gears. The chassis is fixed between the hollow top plate and the hollow arc-shaped bracket, the winding motor is horizontally fixed in the chassis, and the driven shaft is horizontally rotatable in the chassis. The two transmission gears are respectively fixed on the output end of the winding motor and the driven shaft, and the two transmission gears are meshed and connected. The four winding rollers in a rectangular array are respectively fixed on the output end of the winding motor and the driven shaft. A notch is opened on the chassis for passing the restraining rope. The tightening electric push rod passes through the notch and is fixed in the chassis, and the output end of the tightening electric push rod is fixedly connected to the two distal double-hole rope buckles.

[0010] Further, the backflow release unit further comprises a backflow release switch, a tilt limit electric push rod and a limit switch, wherein the backflow release switch is fixedly arranged on the distal double-hole rope buckle located at the bottom, and the backflow release switch is movably abutted against the proximal double-hole rope buckle located at the bottom, the tilt limit electric push rod is fixedly arranged on the distal double-hole rope buckle located at the top, and the limit switch is fixedly arranged on the tilt limit electric push rod, and the limit switch is movably abutted against the proximal double-hole rope buckle located at the top;

[0011] When the limit switch is triggered, the tilt limit electric push rod is extended and movably abuts against the proximal double-hole rope buckle located below;

[0012] When the backflow release switch is triggered, the tightening electric push rod contracts, and the winding motor rotates to release the restraining rope on the winding roller.

[0013] Furthermore, the peripheral constraint assembly includes a top transfer box, an electric control door, a water injection pump, a water injection pipe and an extrusion electric push rod, the top transfer box is fixedly arranged at the top of the center tube, the electric control door is rotatably arranged on one side of the top transfer box, the water injection pump is fixedly arranged on the outside of the center tube, the water injection pipe is fixedly arranged on the output end of the water injection pump, the output end of the water injection pipe extends into the top transfer box and is located directly above the elastic gathering membrane, and the extrusion electric push rod is fixedly arranged between the top transfer box and the hollow top plate.

[0014] Furthermore, a drainage slit is provided on the outer wall of the central tube.

[0015] Furthermore, the living body release component also includes a soft height-limiting rope buckle, which is fixed on the elastic gathering membrane, and the restraining rope is penetrated into the soft height-limiting rope buckle.

[0016] Furthermore, a conical bottom frame is fixedly provided at the bottom of the central tube.

[0017] The beneficial effects achieved by the present invention using the above structure are as follows:

[0018] 1. This application can transfer and release seabed organisms before sampling and lifting seabed sediments, and capture trace sediments such as mud and sand minerals carried by seabed organisms during the transfer process.

[0019] 2. The present application can detect the movement direction of benthic fish in the elastic gathering membrane through the setting of the countercurrent release unit in the live release component, and further control the tension and opening of the elastic gathering membrane according to the movement direction of the benthic fish, so that the benthic fish escaping upward can pass normally, and avoid the benthic fish that have escaped to the top transfer box from falling again while flushing the sediment downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a capture device for marine environment monitoring of the present invention.

[0021] Figure 2 It is a schematic diagram of a front cross-section of a capture device for monitoring marine environment according to the present invention.

[0022] Figure 3 It is a side cross-sectional schematic diagram of a capture device for marine environment monitoring of the present invention.

[0023] Figure 4 It is a three-dimensional schematic diagram of the sampling execution component of the present invention.

[0024] Figure 5 It is a three-dimensional schematic diagram of some parts of the sampling execution assembly of the present invention.

[0025] Figure 6It is a three-dimensional schematic diagram of the living body release component of the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of the countercurrent release unit of the present invention.

[0027] Figure 8 This is a three-dimensional schematic diagram of the countercurrent release unit of the present invention with the casing removed.

[0028] Fig. 9 It is a three-dimensional schematic diagram of some parts of the countercurrent release unit of the present invention.

[0029] Among them, 1. Central tube, 101. Side cavity, 102. Drainage slit, 2. Sampling execution assembly, 201. Plate spring steel, 202. Connecting straight plate, 203. Bearing seat, 204. Extrusion bent rod, 205. Traction block, 206. U-shaped frame, 207. Capture electric push rod, 208. Rubber edging, 3. Live release assembly, 301. Hollow arc bracket, 302. Hollow top plate, 303. Connecting support rod, 304. Elastic gathering membrane, 305. Soft height limit rope buckle, 4. Countercurrent release unit, 401. Chassis , 402, winding motor, 403, driven shaft, 404, winding roller, 405, restraint rope, 406, proximal double-hole rope buckle, 407, distal double-hole rope buckle, 408, connecting spring, 409, tightening electric push rod, 410, transmission gear, 411, backflow release switch, 412, tilt limit electric push rod, 413, limit switch, 5, peripheral restraint assembly, 501, top transfer box, 502, electric control door, 503, water injection pump, 504, water injection pipe, 505, extrusion electric push rod, 6, cone bottom frame.

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] like Figure 1 to Figure 9 As shown, a capture device for marine environment monitoring includes a central tube 1, a sampling execution component 2, a peripheral constraint component 5 and a live release component 3. The sampling execution component 2 is arranged in the central tube 1, the peripheral constraint component 5 is located outside the central tube 1, and the live release component 3 is located above the peripheral constraint component 5.

[0034] like Figure 1 to Figure 9 As shown, a side cavity 101 is provided in the central tube 1, and the sampling execution assembly 2 includes a plate spring steel 201, a connecting straight plate 202, a bearing seat 203, an extrusion bent rod 204, a traction block 205, a U-shaped frame 206 and a capture electric push rod 207. The upper end of the plate spring steel 201 is fixedly connected to the top wall of the side cavity 101, the connecting straight plate 202 is fixedly arranged at the lower end of the plate spring steel 201, the bearing seat 203 is fixedly arranged in the side cavity 101, and the extrusion bent rod 204 rotates It is arranged in the bearing seat 203, the extruded bent rod 204 is closely connected with the plate spring steel 201, the traction block 205 is fixed on the top of the extruded bent rod 204, the capture electric push rod 207 is fixed in the side cavity 101, the U-shaped frame 206 is fixed on one end of the capture electric push rod 207, the U-shaped frame 206 is closely connected with the traction block 205, the plate spring steel 201 and the connecting straight plate 202 are provided with rubber edging 208, and the sampling execution component 2 is symmetrically provided with two groups.

[0035] like Figure 1 to Figure 9 As shown, the living body release component 3 includes a hollow arc-shaped bracket 301, a hollow top plate 302, a connecting rod 303, an elastic gathering membrane 304 and a countercurrent release unit 4. The hollow arc-shaped bracket 301 is vertically slidably arranged in the central tube 1, the hollow top plate 302 is located above the hollow arc-shaped bracket 301, the connecting rod 303 is fixedly arranged between the hollow top plate 302 and the hollow arc-shaped bracket 301, the elastic gathering membrane 304 is fixedly arranged between the hollow top plate 302 and the hollow arc-shaped bracket 301, and the countercurrent release unit 4 is arranged in the central tube 1.

[0036] like Figure 1 to Figure 9As shown, the backflow release unit 4 includes a restraining rope 405, a proximal double-hole rope buckle 406, a distal double-hole rope buckle 407 and a connecting spring 408. The middle part of the restraining rope 405 is fitted on the outside of the elastic gathering membrane 304, and both ends of the restraining rope 405 are fixedly connected with a winding roller 404. The two winding rollers 404 at both ends of the restraining rope 405 are concentrically arranged, and the proximal double-hole rope buckle 406 and the distal double-hole rope buckle 407 are both slidably arranged on the restraining rope 405. The connecting spring 408 is fixedly arranged between the proximal double-hole rope buckle 406 and the distal double-hole rope buckle 407. The restraining rope 405, the proximal double-hole rope buckle 406, the distal double-hole rope buckle 407 and the connecting spring 408 are all symmetrically arranged in two up and down, and the winding rollers 404 are arranged in a rectangular array. Four.

[0037] like Figure 1 to Figure 9 As shown, the backflow release unit 4 also includes a chassis 401, a winding motor 402, a driven shaft 403, a tightening electric push rod 409 and two transmission gears 410. The chassis 401 is fixed between the hollow top plate 302 and the hollow arc-shaped bracket 301, the winding motor 402 is horizontally fixed in the chassis 401, and the driven shaft 403 is horizontally rotatable in the chassis 401. The two transmission gears 410 are respectively fixed at the output end of the winding motor 402 and the driven shaft 403. The two transmission gears 410 are meshed and connected. Four winding rollers 404 in a rectangular array are respectively fixed at the output end of the winding motor 402 and the driven shaft 403. A notch is opened on the chassis 401 for passing the restraining rope 405. The tightening electric push rod 409 passes through the notch and is fixed in the chassis 401. The output end of the tightening electric push rod 409 is fixedly connected to two distal double-hole rope buckles 407.

[0038] like Figure 1 to Figure 9 As shown, the backflow release unit 4 also includes a backflow release switch 411, a tilt limit electric push rod 412 and a limit switch 413. The backflow release switch 411 is fixedly arranged on the distal double-hole rope buckle 407 located at the bottom, and the backflow release switch 411 is movably abutted with the proximal double-hole rope buckle 406 located at the bottom. The tilt limit electric push rod 412 is fixedly arranged on the distal double-hole rope buckle 407 located at the top, and the limit switch 413 is fixedly arranged on the tilt limit electric push rod 412, and the limit switch 413 is movably abutted with the proximal double-hole rope buckle 406 located at the top.

[0039] When the limit switch 413 is triggered, the tilt limit electric push rod 412 is extended and movably abuts against the proximal double-hole rope buckle 406 located below;

[0040] When the backflow release switch 411 is triggered, the tightening electric push rod 409 contracts, the winding motor 402 rotates and the restraining rope 405 on the winding roller 404 is released.

[0041] like Figure 1 to Figure 9As shown, the peripheral constraint assembly 5 includes a top transfer box 501, an electric control door 502, a water injection pump 503, a water injection pipe 504 and an extrusion electric push rod 505. The top transfer box 501 is fixedly arranged at the top of the central tube 1, the electric control door 502 is rotatably arranged on one side of the top transfer box 501, the water injection pump 503 is fixedly arranged on the outside of the central tube 1, the water injection pipe 504 is fixedly arranged on the output end of the water injection pump 503, the output end of the water injection pipe 504 extends into the top transfer box 501 and is located directly above the elastic gathering membrane 304, and the extrusion electric push rod 505 is fixedly arranged between the top transfer box 501 and the hollow top plate 302.

[0042] like Figure 1 to Figure 9 As shown, a drainage slit 102 is provided on the outer wall of the central tube 1 .

[0043] like Figure 1 to Figure 9 As shown, the living body release component 3 further includes a soft height-limiting rope buckle 305 , which is fixed on the elastic gathering membrane 304 , and the restraining rope 405 penetrates through the soft height-limiting rope buckle 305 .

[0044] like Figure 1 to Figure 9 As shown, a conical bottom frame 6 is fixedly provided at the bottom of the central tube 1 .

[0045] When in use, the user uses a rope to sink the device to the seabed, so that the cone bottom frame 6 is inserted into the sediment on the seabed. Then the sampling execution component 2 performs sediment sampling. While the central tube 1 captures the seabed sediment, the bottom-dwelling fish living on the seabed may be trapped by the central tube 1. At this time, the live release component 3 releases the bottom-dwelling fish into the top transfer box 501, and after the personnel control the electric control door 502 to open, the bottom-dwelling fish can be released.

[0046] The specific working principle of the sampling execution assembly 2 is as follows: the electric push rod 207 is captured and contracted, and the traction block 205 is driven to rotate relative to the bearing seat 203 through the U-shaped frame 206. Since the traction block 205 is fixedly connected to the extrusion bent rod 204, the extrusion bent rod 204 in the side chamber 101 rotates synchronously, and causes extrusion deformation to the plate spring steel 201, causing the plate spring steel 201 to bend. The plate spring steels 201 of the two groups of sampling execution assemblies 2 bend together, causing the two connecting straight plates 202 to contact each other and form a closed surrounding state, thereby removing the sediments on the seabed.

[0047] After the sampling execution component 2 completes the sampling, the water injection pump 503 extracts seawater, and the water injection pipe 504 injects water above the elastic gathering membrane 304, so that the seabed sediment in the central tube 1 is washed onto the plate-shaped spring steel 201 and the connecting straight plate 202. At the same time, the squeezing electric push rod 505 is extended, driving the living release component 3 to descend, achieving the effect of compressing the space between the hollow arc bracket 301 and the connecting straight plate 202, so as to facilitate the escape of the living animals.

[0048] The working principle of the live animal release assembly 3 is as follows: because the height of the water injection pump 503 is lower than the elastic gathering membrane 304, the live animal escapes upwards under the effect of the noise of the water injection pump 503 and enters the elastic gathering membrane 304. The water injection pump 503 and the water injection pipe 504 inject water into the elastic gathering membrane 304 from top to bottom, which has the effect of flushing the sediment carried by the live animal. The live animal squeezes the elastic gathering membrane 304 from below and overcomes the resistance of the connection spring 408 located below, so that the proximal double-hole rope buckle 406 below and the backflow release switch 411 are offset, so that the winding motor 402 and the winding roller 404 release the restraint rope 405 (due to the effect of the transmission gear 410, the driving force of the winding motor 402 causes the upper and lower four winding rollers 404 to release the restraint rope 405 synchronously), and at the same time, the electric push rod 409 is tightened and retracted, so that the distal double-hole rope buckle 407 is away from the elastic gathering membrane 304. Therefore, the elastic gathering membrane 304 is no longer constrained, and the living animal can swim upward from the elastic gathering membrane 304 to the top transfer box 501 and wait for the subsequent user to open the electric control door 502 to release the living animal.

[0049] After the living animal enters the top transfer box 501, the user controls the reeling motor 402 and the tightening electric push rod 409 to reset, and tightens the elastic gathering membrane 304 again. At this time, the living animal and a small amount of sediment that escapes synchronously are above the elastic gathering membrane 304, and are washed by the water flow of the water injection pump 503 and the water injection pipe 504. The water flow flushing helps to wash the escaped sediment back to the connecting support plate, and the tightened elastic gathering membrane 304 no longer allows the living animal to pass.

[0050] When a living animal hits the elastic gathering membrane 304 from above, the proximal double-hole rope buckle 406 located above is squeezed and overcomes the resistance of the connecting spring 408, thereby triggering the limit switch 413, causing the tilt limit electric push rod 412 to extend, thereby achieving the effect of squeezing the proximal double-hole rope buckle 406 located below, so that the proximal double-hole rope buckle 406 located below cannot trigger the backflow release switch 411, preventing the living animal from falling again.

[0051] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A capture device for marine environment monitoring, characterized in that: The device comprises a central tube (1), a sampling execution component (2), a peripheral restraining component (5) and a living body releasing component (3), wherein the sampling execution component (2) is arranged in the central tube (1), the peripheral restraining component (5) is located outside the central tube (1), and the living body releasing component (3) is located above the peripheral restraining component (5); The living body release component (3) comprises a hollow arc-shaped bracket (301), a hollow top plate (302), a connecting rod (303), an elastic gathering membrane (304) and a countercurrent release unit (4); the hollow arc-shaped bracket (301) is vertically slidably arranged in the central tube (1); the hollow top plate (302) is located above the hollow arc-shaped bracket (301); the connecting rod (303) is fixedly arranged between the hollow top plate (302) and the hollow arc-shaped bracket (301); the elastic gathering membrane (304) is fixedly arranged between the hollow top plate (302) and the hollow arc-shaped bracket (301); and the countercurrent release unit (4) is arranged in the central tube (1); The backflow release unit (4) comprises a restraining rope (405), a proximal double-hole rope buckle (406), a distal double-hole rope buckle (407) and a connecting spring (408); the middle part of the restraining rope (405) is fitted on the outside of the elastic gathering membrane (304); both ends of the restraining rope (405) are fixedly connected with a winding roller (404); the two winding rollers (404) at both ends of the restraining rope (405) are concentrically arranged; the proximal double-hole rope buckle (406) and the distal double-hole rope buckle (407) are both slidably arranged on the restraining rope (405); the connecting spring (408) is fixedly arranged between the proximal double-hole rope buckle (406) and the distal double-hole rope buckle (407); the restraining rope (405), the proximal double-hole rope buckle (406), the distal double-hole rope buckle (407) and the connecting spring (408) are all symmetrically arranged in two in an upper and lower direction; and the winding rollers (404) are arranged in a rectangular array in four; The peripheral restraint assembly (5) comprises a top transfer box (501), an electric control door (502), a water injection pump (503), a water injection pipe (504) and an extrusion electric push rod (505); the top transfer box (501) is fixedly arranged at the top of the central tube (1); the electric control door (502) is rotatably arranged on one side of the top transfer box (501); the water injection pump (503) is fixedly arranged on the outside of the central tube (1); the water injection pipe (504) is fixedly arranged on the output end of the water injection pump (503); the output end of the water injection pipe (504) extends into the top transfer box (501) and is located directly above the elastic gathering membrane (304); and the extrusion electric push rod (505) is fixedly arranged between the top transfer box (501) and the hollow top plate (302).

2. A capture device for marine environment monitoring according to claim 1, characterized in that: The central tube (1) is provided with a side cavity (101). The sampling execution component (2) comprises a plate spring steel (201), a connecting straight plate (202), a bearing seat (203), an extrusion bent rod (204), a traction block (205), a U-shaped frame (206) and a capture electric push rod (207). The upper end of the plate spring steel (201) is fixedly connected to the top wall of the side cavity (101), the connecting straight plate (202) is fixedly arranged at the lower end of the plate spring steel (201), the bearing seat (203) is fixedly arranged in the side cavity (101), and the extrusion bent rod (204) is rotatably arranged. In the bearing seat (203), the extruded bent rod (204) is fitted and connected to the plate-shaped spring steel (201), the traction block (205) is fixedly arranged on the top of the extruded bent rod (204), the capture electric push rod (207) is fixedly arranged in the side cavity (101), the U-shaped frame (206) is fixedly arranged on one end of the capture electric push rod (207), the U-shaped frame (206) is fitted and connected to the traction block (205), the plate-shaped spring steel (201) and the connecting straight plate (202) are provided with rubber edging (208), and the sampling execution component (2) is symmetrically provided with two groups.

3. A capture device for marine environment monitoring according to claim 2, characterized in that: The backflow release unit (4) further comprises a chassis (401), a winding motor (402), a driven shaft (403), a tightening electric push rod (409) and two transmission gears (410); the chassis (401) is fixedly arranged between the hollow top plate (302) and the hollow arc-shaped bracket (301); the winding motor (402) is horizontally fixedly arranged in the chassis (401); the driven shaft (403) is horizontally rotatably arranged in the chassis (401); the two transmission gears (410) are respectively fixedly arranged on the winding motor (402) and the driven shaft (403) is rotatably arranged in the chassis (401); 02) output end and the driven shaft (403), the two transmission gears (410) are meshed and connected, the four winding rollers (404) in a rectangular array are respectively fixedly arranged on the output end of the winding motor (402) and the driven shaft (403), the chassis (401) is provided with a notch for passing the restraining rope (405), the tightening electric push rod (409) passes through the notch and is fixedly arranged in the chassis (401), and the output end of the tightening electric push rod (409) is fixedly connected to the two remote double-hole rope buckles (407).

4. A capture device for marine environment monitoring according to claim 3, characterized in that: The backflow release unit (4) further comprises a backflow release switch (411), a tilt limit electric push rod (412) and a limit switch (413); the backflow release switch (411) is fixedly arranged on a distal double-hole rope buckle (407) located below, and the backflow release switch (411) is movably abutted against a proximal double-hole rope buckle (406) located below; the tilt limit electric push rod (412) is fixedly arranged on a distal double-hole rope buckle (407) located above; the limit switch (413) is fixedly arranged on the tilt limit electric push rod (412), and the limit switch (413) is movably abutted against a proximal double-hole rope buckle (406) located above; When the limit switch (413) is triggered, the tilt limit electric push rod (412) is extended and movably abuts against the proximal double-hole rope buckle (406) located below; When the backflow release switch (411) is triggered, the tightening electric push rod (409) contracts, and the winding motor (402) rotates to release the restraining rope (405) on the winding roller (404).

5. A capture device for marine environment monitoring according to claim 4, characterized in that: A drainage slit (102) is provided on the outer wall of the central tube (1).

6. A capture device for monitoring marine environment according to claim 5, characterized in that: The living body release component (3) further comprises a soft height-limiting rope buckle (305), wherein the soft height-limiting rope buckle (305) is fixedly arranged on the elastic gathering membrane (304), and the restraining rope (405) is penetrated and arranged in the soft height-limiting rope buckle (305).

7. A capture device for marine environment monitoring according to claim 6, characterized in that: A conical bottom frame (6) is fixedly provided at the bottom of the central tube (1).

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