CN113071632A

CN113071632A - Underwater fishing equipment for marine environmental protection

Info

Publication number: CN113071632A
Application number: CN202110432817.6A
Authority: CN
Inventors: 秦小明
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-07-06

Abstract

The invention discloses underwater salvage equipment for marine environmental protection, and belongs to the technical field of salvage equipment. The utility model provides an equipment of salvaging under water for ocean environmental protection, including removing the seat, the through hole that is located the upside is inside to be inserted and is equipped with screw thread seat A, screw thread seat A is inside to be inserted and is equipped with the threaded rod, supporting seat top surface rear side has set firmly servo motor through the motor board, motor board right side wall front end has set firmly the stopper for the position of threaded rod, the threaded rod left wall has seted up the spacing groove for the position of stopper, servo motor output pot head is equipped with the gear, screw thread seat A outer wall upper portion is annular equidistant for the position of gear has seted up a plurality of tooth's sockets, the threaded rod lower extreme passes screw thread seat A inside in proper order and is located the through hole of. The invention avoids garbage polluting shallow sea environment and simultaneously prevents long-time diving from harming the health of divers, and the method can be used for solving the problem of pollution of garbage to the body health of divers.

Description

Underwater fishing equipment for marine environmental protection

Technical Field

The invention relates to the technical field of fishing equipment, in particular to underwater fishing equipment for marine environmental protection.

Background

The object salvage in the water is the engineering of salvage sinking in the water, including salvage boats and ships, aircraft, goods and so on, salvage operation in channel, harbour waters, can reach the purpose of clearing navigation obstacles, in recent years because people's activity frequency in coastal areas increases, the rubbish deposited in the shallow sea area also becomes along with it, in order to ensure the marine environment not to be polluted, need salvage these rubbish.

Through the retrieval, the device disclosed as CN211943676U, through setting up the rings of threaded rod bottom, the salvage personnel of being convenient for sneak into the bottom after with rings and salvage the object fixed, through setting up fixed plate, pump, gas pitcher and gasbag, can strengthen the buoyancy of device and make the device float upward fast, drive the lifting rope through the rotation of gear motor control pivot and rise, alright with drive the float from the aquatic with the device and let people salvage.

Although the existing device can assist a diver to carry out quick fishing operation, the device is only suitable for sediments with larger volume, if the existing device is used for fishing small-volume impurities like beverage bottles and the like, the small-volume impurities are undoubtedly large and small, and the device still needs the cooperation of the diver in the use process, and a series of hazards such as pulmonary function decline and hearing damage of the diver are easily caused by long-term diving, so that the physical health of the diver is not facilitated, and in view of the above, the underwater fishing equipment for marine environmental protection is provided.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide underwater salvage equipment for marine environmental protection, and aims to solve the problems in the background technology.

2. Technical scheme

An underwater fishing device for ocean environmental protection comprises a moving seat, four brake wheels are fixedly arranged at four corners of the bottom surface of the moving seat, a storage cavity is formed in the lower portion of the rear wall of the moving seat, a movable door is hinged to the rear end of the left wall of the storage cavity, a fixed seat is fixedly arranged at the rear end of the top surface of the moving seat, two connecting rods A are hinged to the front wall of the fixed seat in a symmetrical structure, a connecting rod B is hinged to the front end of the connecting rod A, a hydraulic rod is arranged between the connecting rods A and the connecting rod B, a supporting seat is hinged between the front ends of the two connecting rods B, a supporting block is fixedly arranged on the front wall of the moving seat relative to the position of the lower side of the rear wall of the supporting seat, a supporting groove is formed in the position of the rear wall of the supporting seat relative to the supporting block, two through holes are formed in a, the rear side of the top surface of the supporting seat is fixedly provided with a servo motor through a motor plate, the front end of the right wall of the motor plate is fixedly provided with a limiting block relative to the position of a threaded rod, the left wall of the threaded rod is provided with a limiting groove relative to the position of the limiting block, the output end of the servo motor is sleeved with a gear, the upper part of the outer wall of the threaded seat A is provided with a plurality of tooth grooves at equal intervals in an annular manner relative to the position of the gear, the lower end of the threaded rod sequentially penetrates through the inner part of the threaded seat A and is positioned at the lower side, the through hole extends to the lower part and is coaxially and fixedly connected with a stud, a grabbing component is arranged below the stud and comprises a threaded seat B, the top surface of the threaded rod is provided with a threaded hole relative to the position of the stud, the stud is in threaded connection, the clamping jaw is C style of calligraphy structure, clamping jaw downside tip is most advanced towards the triangular prism structure of inboard side, two be equipped with the extrusion piece between the clamping jaw, the extrusion piece is trapezoidal column structure, extrusion piece both sides outer wall respectively with two clamping jaw inner wall extrusion cooperation, the extrusion piece bottom surface has set firmly the base, the base is the decurrent U type structure of concave surface, it has set firmly two compression spring to be symmetrical structure between extrusion piece top surface and the inboard top surface of articulated seat, extrusion piece bilateral symmetry has set firmly two sliders, the spout has been seted up for the position of slider to articulated seat inner wall.

Preferably, the connecting rod A and the connecting rod B are arranged in a splayed structure with a small outer part and a large inner part, the front end and the rear end of the hydraulic rod are respectively hinged with the inner side wall of the connecting rod B and the inner side wall of the connecting rod A, the supporting seat is of a U-shaped structure, and the supporting block is in plug-in fit with the supporting groove.

Preferably, screw thread seat A with be located the upside the through hole inner wall rotates to be connected, threaded rod and screw thread seat A threaded connection, the motor board is L type structure, stopper and spacing groove sliding fit, the gear is connected with the tooth's socket meshing.

Preferably, the sliding block and the sliding groove are of a T-shaped structure, the sliding block is in sliding fit with the sliding groove, two penetrating grooves are symmetrically formed in the front side and the rear side of the hinged seat relative to the upper portion of the sliding groove, a stop block in sliding fit with the penetrating grooves is inserted in the penetrating grooves, and two extension springs are symmetrically and fixedly arranged between the inner wall of the outer end of the stop block and the outer wall of the hinged seat.

Preferably, the stop block is of a T-shaped structure with a large outer part and a small inner part, and the inner side end of the bottom surface of the stop block is of an inclined plane structure.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

1. the invention is provided with a grabbing component, a worker can place the device on a ship to search for rubbish deposited on the seabed along a shallow sea area, when small-volume rubbish is found, the grabbing component can be roughly aligned with the position of the rubbish, then a servo motor drives a gear to rotate so as to drive a threaded seat A to rotate through a tooth socket, at the moment, a threaded rod cannot rotate along the threaded seat A due to the limiting action of a limiting block and a limiting groove, so that the threaded rod linearly moves vertically and downwards along the interior of the threaded seat A, when the bottom surface of a base is contacted with the seabed, under the descending action of the threaded rod and the reverse acting force of the seabed on the base, the base can drive an extrusion block to upwards press a compression spring along the direction of the compression spring, under the extrusion effect of the extrusion block on the inner wall of a clamping jaw, two clamping jaws can clamp towards the middle along the hinging direction of the extrusion block and the hinging direction of the hinging seat and clamp the rubbish between the, the extrusion piece design in this device is highly the same size with the inboard height of articulated seat, so when the extrusion piece rises to the maximum height along with slider and spout sliding fit's direction, just can laminate with articulated seat bottom surface two bases, clamping action and the base at two clamping jaws around to the clamping jaw under the closure of both sides open end alright firmly restrict rubbish in snatching the subassembly, subsequently the staff only need make servo motor reversal with rubbish fish out the surface of water can, convenient and fast, need not diver time-consuming and energy-consuming dive and fish out rubbish, also prevent long-time dive when having avoided rubbish pollution shallow sea environment and to diver healthy harm, must two at a stroke.

2. The garbage grabbing device is provided with the connecting rod A and the connecting rod B, after a worker finds garbage, the garbage grabbing device can be moved to the edge of a ship by using the brake wheel, then the size of an included angle between the inner sides of the connecting rod A and the connecting rod B is changed by using the extension of the hydraulic rod to enable the connecting rod A and the connecting rod B to tend to be in a vertical state, and therefore the supporting seat can be pushed out of the edge of the ship.

3. The check blocks are inserted into the through grooves on the two sides of the hinge seat, in the process that the extrusion block rises, the top surfaces of the sliding blocks on the two sides can extrude the inclined surface part of the bottom surface of the check block so as to enable the check block to slide outwards and elongate the extension spring, when the extrusion block rises to the maximum height, the sliding block can slide above the check block, at the moment, the sliding block can return to the original position under the action of the extension spring and generate supporting force on the sliding block through the top surface of the extension spring, so that the extrusion block is limited not to fall under the action of gravity, the device can stably fish garbage out of the water surface, and the reliability is high.

4. The lower end of the threaded rod is fixedly provided with the threaded stud, the threaded rod can be connected with the grabbing component through the threaded stud, and the threaded holes are formed in the top surface of the threaded rod to connect the threaded rods with one another, so that the depth of shallow sea areas at different positions can be flexibly met, the flexibility of the device is further improved, in addition, a storage cavity formed in the rear wall of a moving seat of the device can be used for storing standby threaded rods and storing the grabbing component when the device is not used, the convenience of the device is improved, and the ordered proceeding of environment-friendly work is guaranteed.

5. The support block is fixedly arranged at the upper end of the front wall of the movable seat, the support groove matched with the support block in an inserted manner is formed in the rear wall of the support seat, and the support seat can be supported when being taken back to a ship by utilizing the structure, so that the support seat is prevented from damaging the connecting rod A, the connecting rod B and the hydraulic rod due to large burden on the connecting rod A, the connecting rod B and the hydraulic rod for a long time, and the service life of the device is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a rear exploded view of the present invention;

FIG. 3 is a schematic view of the structure of the threaded rod and the motor plate of the present invention;

FIG. 4 is an exploded view of the support base of the present invention;

FIG. 5 is a schematic cross-sectional view of the hinge base of the present invention;

fig. 6 is an exploded view of the grasping assembly according to the present invention.

The reference numbers in the figures illustrate: 1. a movable seat; 2. a brake wheel; 3. a storage chamber; 4. a movable door; 5. a fixed seat; 6. a connecting rod A; 7. a connecting rod B; 8. a hydraulic lever; 9. a supporting seat; 10. a support block; 11. a support groove; 12. a through hole; 13. a threaded seat A; 14. a threaded rod; 15. a motor plate; 16. a servo motor; 17. a limiting block; 18. a limiting groove; 19. a gear; 20. a tooth socket; 21. a stud; 22. a grasping assembly; 23. a threaded seat B; 24. a threaded hole; 25. a hinged seat; 26. a clamping jaw; 27. extruding the block; 28. a base; 29. a compression spring; 30. a slider; 31. a chute; 32. a through groove; 33. a stopper; 34. a tension spring.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-6, the present invention provides a technical solution:

an underwater salvage device for ocean environmental protection comprises a moving seat 1, four brake wheels 2 are fixedly arranged at four corners of the bottom surface of the moving seat 1, a storage cavity 3 is formed in the lower portion of the rear wall of the moving seat 1, a movable door 4 is hinged to the rear end of the left wall of the storage cavity 3, a fixed seat 5 is fixedly arranged at the rear end of the top surface of the moving seat 1, two connecting rods A6 are hinged to the front wall of the fixed seat 5 in a symmetrical structure, a connecting rod B7 is hinged to the front end of each connecting rod A6 and a connecting rod B7, a support seat 9 is hinged between the front ends of the two connecting rods B7, a support block 10 is fixedly arranged on the front wall of the moving seat 1 in a position corresponding to the lower side of the rear wall of the support seat 9, a support groove 11 is formed in a position corresponding to the support block 10 in a position, two through holes 12 are formed in a vertically symmetrical structure on the front side of the top surface of the, a servo motor 16 is fixedly arranged at the rear side of the top surface of the supporting seat 9 through a motor plate 15, a limiting block 17 is fixedly arranged at the front end of the right wall of the motor plate 15 corresponding to the position of the threaded rod 14, a limiting groove 18 is arranged at the position of the left wall of the threaded rod 14 corresponding to the limiting block 17, a gear 19 is sleeved at the output end of the servo motor 16, a plurality of tooth grooves 20 are annularly and equidistantly arranged at the upper part of the outer wall of the threaded seat A13 corresponding to the position of the gear 19, the lower end of the threaded rod 14 sequentially penetrates through a through hole 12 inside and at the lower side of the threaded seat A13 to extend to the lower part and is coaxially and fixedly connected with a stud 21, a grabbing component 22 is arranged below the stud 21 and comprises a threaded seat B23, a threaded hole 24 is arranged at the top surface of the threaded rod 14 corresponding to the stud 21, the stud 21 is in threaded connection with the threaded, the hinged seat 25 is of a U-shaped structure, the lower part of the inner side of the hinged seat 25 is hinged with two clamping jaws 26 in a symmetrical structure, each clamping jaw 26 is of a C-shaped structure, the end part of the lower side of each clamping jaw 26 is of a triangular prism structure with the tip end facing the inner side, an extrusion block 27 is arranged between the two clamping jaws 26, the outer walls of the two sides of the extrusion block 27 are respectively in extrusion fit with the inner walls of the two clamping jaws 26, a base 28 is fixedly arranged on the bottom surface of the extrusion block 27, the base 28 is of a U-shaped structure with a downward concave surface, two compression springs 29 are fixedly arranged between the top surface of the extrusion block 27 and the top surface of the inner side of the hinged seat 25 in a symmetrical structure, two sliding blocks 30 are fixedly arranged on the two sides of the extrusion block 27, a sliding groove 31 is formed in the position, relative to the sliding blocks 30, when the bottom surface of the base 28 is in contact with the seabed, under the descending action of the threaded rod, under the extrusion effect of extrusion piece 27 to the clamping jaw 26 inner wall, two clamping jaws 26 can be pressed from both sides to the middle part along its articulated direction with articulated seat 25 and will be located the rubbish centre gripping between the two to two clamping jaws 26 inboardly, and extrusion piece 27 in this device designs for the height and the same size of articulated seat 25 inboard height, so when extrusion piece 27 rises to the maximum height along with slider 30 and spout 31 sliding fit's direction, two bases 28 just can be laminated with articulated seat 25 bottom surface.

Concretely, connecting rod A6 is the splayed structure setting of outer little big-inside with connecting rod B7, both ends are articulated with connecting rod B7 inside wall and connecting rod A6 inside wall respectively around the hydraulic stem 8, can utilize the brake pulley 2 to remove to ship edge, utilize the extension of hydraulic stem 8 to change the size of connecting rod A6 and the inboard contained angle of connecting rod B7 afterwards and make the two tend to vertical state, so alright promote supporting seat 9 out ship edge, such structure can assist the staff will snatch subassembly 22 and rubbish position alignment, supporting seat 9 is U type structure, supporting shoe 10 and support groove 11 are pegged graft and are cooperated, so can produce the effect of lifting to supporting seat 9 when not using this device, avoid it to the too big that connecting rod A6 and connecting rod B7 and hydraulic stem 8 caused.

Further, screw seat A13 rotates with the through-hole 12 inner wall that is located the upside and is connected, threaded rod 14 and screw seat A13 threaded connection, servo motor 16 passes through the wire and is connected with external power source, motor board 15 is L type structure, stopper 17 and spacing groove 18 sliding fit, gear 19 is connected with the meshing of tooth's socket 20, it rotates and then drives screw seat A through tooth's socket 20 and rotate to drive gear 19 through servo motor 16, at this moment because stopper 17 and spacing groove 18's limiting displacement, threaded rod 14 can't rotate along with screw seat A, so just make threaded rod 14 along the inside vertical decurrent linear motion of doing of screw seat A.

Furthermore, the sliding block 30 and the sliding groove 31 are both of a T-shaped structure, the sliding block 30 and the sliding groove 31 are in sliding fit, two through grooves 32 are symmetrically formed in the front side and the rear side of the hinged seat 25 relative to the upper portion of the sliding groove 31, stop blocks 33 in sliding fit with the through grooves 32 are inserted in the through grooves 32, two extension springs 34 are symmetrically and fixedly arranged between the inner walls of the outer side ends of the stop blocks 33 and the outer wall of the hinged seat 25, when the extrusion block 27 rises to the maximum height, the sliding block 30 can slide to the upper side of the stop blocks 33, at the moment, the extension springs 34 can return to the original position under the acting force of the tension springs and generate supporting force on the sliding block 30 through the top surfaces of the extension springs, so that the extrusion block 27 is limited not to fall under the action of gravity, the device can be used for stably fishing out garbage, the reliability is high, the stop blocks 33 are of the T-shaped structure with large outer portions and small inner portions, the inner side ends of Snatch in the subassembly 22, the staff only need make servo motor 16 reversal afterwards with rubbish fish out the surface of water can, convenient and fast need not the dive that the diver wasted time and energy and fish for rubbish, also prevent long-time dive when having avoided rubbish pollution shallow sea environment to the healthy harm of diver, must double at a stroke.

The working principle is as follows: the worker can place the device on a ship to search for the garbage deposited on the seabed along a shallow sea area, after the garbage is found, the device can be moved to the edge of the ship by using the brake wheel 2, and then the extension of the hydraulic rod 8 is used for changing the included angle between the inner sides of the connecting rod A6 and the connecting rod B7 to lead the connecting rod A6 and the connecting rod B7 to tend to be in a vertical state, so that the supporting seat 9 can be pushed out of the edge of the ship, the structure can assist the worker to align the grabbing component 22 with the position of the garbage, and can finely adjust the position of the grabbing component 22 when the grabbing component is lowered to the position near the garbage, the flexibility of the device is greatly improved, the device can grab the garbage more accurately and stably, the gear 19 is driven to rotate by the servo motor 16 after the alignment, the threaded seat A is driven to rotate by the tooth socket 20, at the moment, due to the limiting, so that the threaded rod 14 makes a straight-line motion vertically downwards along the inside of the threaded seat a, when the bottom surface of the base 28 contacts with the seabed, under the descending action of the threaded rod 14 and the reverse acting force of the seabed on the base 28, the base 28 can drive the extrusion block 27 to press the compression spring 29 upwards along the direction of the compression spring 29, and under the extrusion effect of the extrusion block 27 on the inner wall of the clamping jaw 26, the two clamping jaws 26 can be clamped towards the middle along the hinging direction of the hinged seat 25 and clamp the garbage between the two clamping jaws 26 to the inner side of the two clamping jaws 26, the extrusion block 27 in the device is designed to have the same height as the height of the inner side of the hinged seat 25, so that when the extrusion block 27 rises to the maximum height along the sliding fit direction of the sliding block 30 and the sliding groove 31, the two base 28 can be attached to the bottom surface of the hinged seat 25, and during the rising process of the extrusion block 27, the top surfaces of the sliding blocks 30 on the two sides can extrude the inclined surface part of The long extension spring 34, when the extrusion block 27 rises to the maximum height, the slide block 30 will slide to the top of the stop block 33, at this time, under the action of the extension spring 34, it will return to the original position and produce the supporting force to the slide block 30 through its top surface, thus limiting the extrusion block 27 from falling under the action of gravity, ensuring the stable water surface taking out of the rubbish of the device, high reliability, firmly limiting the rubbish in the grabbing component 22 under the clamping action of the two clamping jaws 26 and the sealing of the base 28 to the open ends of the front and back sides of the clamping jaws 26, then the worker only needs to make the servo motor 16 reverse to take out the rubbish from the water surface, convenient and fast, needing no time and labor consuming submergence of the diver to take out the rubbish, avoiding the rubbish polluting the shallow sea environment and also preventing the harm of long-time diving to the health of the diver, one-to-two-one-step, in addition, the lower, can be connected threaded rod 14 with snatch subassembly 22 through the screw thread post, and can also carry out interconnect with a plurality of threaded rods 14 through threaded rod 14 top surface set up threaded hole 24, with this can be nimble correspond the shallow sea regional degree of depth of different positions, further improvement the flexibility of this device, moreover, this device remove behind the seat 1 wall set up some storing chambeies can be used to deposit reserve threaded rod 14 and carry out the save in the lump to snatching subassembly 22 when this device does not use, the convenient degree of this device has been improved, the orderly of environmental protection work is ensured and is gone on.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an equipment of salvaging under water for ocean environmental protection, is including removing seat (1), its characterized in that: four brake wheels (2) are fixedly arranged at four corners of the bottom surface of the movable seat (1), a storage cavity (3) is formed in the lower portion of the rear wall of the movable seat (1), a movable door (4) is hinged to the rear end of the left wall of the storage cavity (3), a fixed seat (5) is fixedly arranged at the rear end of the top surface of the movable seat (1), the front wall of the fixed seat (5) is hinged to two connecting rods A (6) in a symmetrical structure, a connecting rod B (7) is hinged to the front end of each connecting rod A (6), a hydraulic rod (8) is arranged between each connecting rod A (6) and each connecting rod B (7), a supporting seat (9) is hinged between the front ends of the two connecting rods B (7), a supporting block (10) is fixedly arranged on the front wall of the movable seat (1) relative to the position of the lower side of the rear wall of the supporting seat (9), a supporting groove (11) is formed in the position of the rear wall of the supporting seat, the screw seat A (13) is inserted in the through hole (12) on the upper side, the threaded rod (14) is inserted in the threaded seat A (13), a servo motor (16) is fixedly arranged on the rear side of the top surface of the supporting seat (9) through a motor plate (15), a limiting block (17) is fixedly arranged at the front end of the right wall of the motor plate (15) relative to the position of the threaded rod (14), a limiting groove (18) is formed in the left wall of the threaded rod (14) relative to the position of the limiting block (17), a gear (19) is sleeved at the output end of the servo motor (16), a plurality of tooth grooves (20) are formed in the upper portion of the outer wall of the threaded seat A (13) at equal intervals in an annular mode relative to the position of the gear (19), the lower end of the threaded rod (14) sequentially penetrates through the interior of the threaded seat A (13) and is, the utility model discloses a screw bolt (21) below is equipped with snatchs subassembly (22), snatch subassembly (22) including screw thread seat B (23), threaded rod (14) top surface has seted up threaded hole (24) for the position of screw bolt (21), screw bolt (21) and screw thread seat B (23) and the equal threaded connection of screw hole (24), screw thread seat B (23) bottom surface has set firmly articulated seat (25), articulated seat (25) are U type structure, articulated seat (25) inboard lower part is that symmetrical structure articulates there are two clamping jaws (26), clamping jaw (26) are C style of calligraphy structure, clamping jaw (26) downside tip is most advanced towards the triangular prism structure of inboard side, two be equipped with extrusion piece (27) between clamping jaw (26), extrusion piece (27) are trapezoidal column structure, extrusion piece (27) both sides outer wall respectively with two clamping jaw (26) inner wall extrusion cooperation, extrusion piece (27) bottom surface has set firmly base (28), base (28) are the decurrent U type structure of concave surface, it has set firmly two compression spring (29) to be the symmetrical structure between extrusion piece (27) top surface and articulated seat (25) inboard top surface, extrusion piece (27) bilateral symmetry has set firmly two slider (30), spout (31) have been seted up for the position of slider (30) to articulated seat (25) inner wall.

2. An underwater fishing device for marine environmental protection according to claim 1, characterized in that: connecting rod A (6) and connecting rod B (7) are the eight characters structure setting of outer little big-inside, both ends are articulated with connecting rod B (7) inside wall and connecting rod A (6) inside wall respectively around hydraulic stem (8), supporting seat (9) are U type structure, supporting shoe (10) and support groove (11) cooperation of pegging graft.

3. An underwater fishing device for marine environmental protection according to claim 1, characterized in that: screw thread seat A (13) with be located the upside through hole (12) inner wall rotates to be connected, threaded rod (14) and screw thread seat A (13) threaded connection, motor board (15) are L type structure, stopper (17) and spacing groove (18) sliding fit, gear (19) are connected with tooth's socket (20) meshing.

4. An underwater fishing device for marine environmental protection according to claim 1, characterized in that: the sliding block (30) and the sliding groove (31) are of T-shaped structures, the sliding block (30) is in sliding fit with the sliding groove (31), two penetrating grooves (32) are symmetrically formed in the front side and the rear side of the hinged seat (25) relative to the upper portion of the sliding groove (31), a stop block (33) in sliding fit with the penetrating grooves (32) is inserted in the penetrating grooves (32), and two extension springs (34) are symmetrically and fixedly arranged between the inner wall of the outer side end of the stop block (33) and the outer wall of the hinged seat (25).

5. An underwater fishing device for marine environmental protection according to claim 4, characterized in that: the stop block (33) is of a T-shaped structure with a large outer part and a small inner part, and the inner side end of the bottom surface of the stop block (33) is of an inclined plane structure.