Automatic fishery sediment sampler

Abstract

The invention relates to the technical field of sediment sampling, and discloses an automatic fishery sediment sampler which comprises a base, a lifting assembly is arranged at the top of the base, a lifting plate is arranged on one side of the lifting assembly, and a balancing weight located on the left side of the lifting assembly is fixedly installed at the top of the base. The automatic fishery sediment sampler comprises a base and a lifting assembly, a lifting plate is arranged on the top of the base, a moving mechanism extending to the bottom of the lifting plate is arranged on the inner side of the lifting plate, a connecting mechanism is arranged at the bottom of the moving mechanism, a sampling mechanism is arranged at the bottom of the connecting mechanism, the lifting assembly comprises a frame body, and the frame body is fixedly mounted at the top of the base. According to the sampling device, the bottom materials with different depths can be sampled at the same time, the purpose of sampling the bottom materials with different depths at the same time is achieved, the sampling mechanism is convenient to disassemble through the arrangement of the connecting mechanism, follow-up internal cleaning is convenient, and the purpose of being convenient to disassemble and clean is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of bottom sediment sampling, in particular to an automatic fishery bottom sediment sampler. Background Art

[0002] After searching, the Chinese patent publication number is CN205175736U, which discloses a bottom sampler, including a left bucket, a right bucket and a pull rod, the left bucket and the right bucket are rotatably connected, the pull rod includes a first pull rod connected to the left bucket and a second pull rod connected to the right bucket. The sampler of the utility model is connected by a fixed plate and a fixed ring, so that even if the first pull rod and the second pull rod are pulled during the descent of the sampler, the left bucket and the right bucket will not be closed in advance, making sampling more convenient. The above-mentioned prior art solutions have the following defects: only a single sampling structure is used to sample the bottom at a single location, and the bottoms at different depths cannot be sampled at the same time, which affects the accuracy of the sampling data, and the sampler cannot be quickly disassembled, and it is inconvenient to clean the residual objects in the sampler after use. Therefore, an automated fishery bottom sampler is proposed to solve the above-mentioned problems. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the present invention provides an automated fishery bottom sediment sampler, which has the advantages of being able to sample bottom sediments at different depths simultaneously and being easy to disassemble and clean, thereby solving the problems mentioned in the above background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of sampling bottom sediments at different depths at the same time and facilitating disassembly and cleaning of the sampler, the present invention provides the following technical solutions: an automated bottom sediment sampler for fisheries, comprising a base, a lifting assembly is arranged on the top of the base, a lifting plate is arranged on one side of the lifting assembly, a counterweight block located on the left side of the lifting assembly is fixedly installed on the top of the base, a moving mechanism extending to the bottom of the lifting plate is arranged on the inner side of the lifting plate, a connecting mechanism is arranged at the bottom of the moving mechanism, and a sampling mechanism is arranged at the bottom of the connecting mechanism;

[0007] The lifting assembly includes a frame, the frame is fixedly installed on the top of the base, an electric slide rail fixedly connected to the base is fixedly installed on the inner top wall of the frame, an electric slider is slidably installed on the right side of the electric slide rail, the lifting plate is fixedly installed on the right side of the electric slider and is slidably connected to the inner wall of the frame, one end of the lifting plate extends to the right side of the frame, and the counterweight block is located on the left side of the frame.

[0008] Preferably, the moving mechanism includes a mounting groove, a mounting groove is provided at the bottom of the lifting plate, a servo motor is fixedly installed on the left side of the inner wall of the mounting groove, a threaded rod rotatably connected to the right side of the inner wall of the mounting groove is fixedly installed at the output shaft of the servo motor, the outer side of the threaded rod is threadedly connected to a threaded block slidably connected to the top wall of the mounting groove, a connecting column extending to the bottom of the lifting plate is fixedly installed at the bottom of the threaded block, two support blocks are fixedly installed at the bottom of the lifting plate, a support ring is fixedly installed between the two support blocks, a cross plate is slidably installed on the outer side of the support ring, and the cross plate is fixedly connected to the bottom of the connecting column.

[0009] Preferably, the connecting mechanism includes a trapezoidal block, a trapezoidal block is fixedly installed on the bottom of the horizontal plate, a moving block is slidably installed on the outside of the trapezoidal block, vertical plates are fixedly installed on the left and right sides of the moving block, a right-angle plate extending to the bottom of the moving block is fixedly installed on the rear side of the horizontal plate, a push plate is slidably installed on the front side of the right-angle plate, a fixing spring fixedly installed with the right-angle plate on the bottom of the push plate is fixedly installed, a pull rod extending to the bottom of the right-angle plate is fixedly installed on the bottom of the push plate, a pull ring is fixedly installed on the bottom of the pull rod, and a block engaged with the moving block is fixedly installed on the top of the push plate.

[0010] Preferably, the sampling mechanism includes a rectangular plate, a rectangular plate is fixedly installed between the bottoms of the two vertical plates, a sampling cylinder is fixedly installed at the bottom of the rectangular plate, three partitions are fixedly installed inside the sampling cylinder, a water leakage hole located above the partition is opened on the left side of the inner wall of the sampling cylinder, a mounting hole is opened on the right side of the inner wall of the sampling cylinder, a baffle is rotatably connected between the front and rear sides of the inner wall of the mounting hole, a frame is fixedly installed on the right side of the baffle, a vertical plate extending to the bottom of the rectangular plate is slidably installed on the top of the rectangular plate, a mounting frame located outside the frame is fixedly installed on the front side of the vertical plate, a round rod penetrating the frame is fixedly installed between the front and rear sides of the inner wall of the mounting frame, a servo motor is fixedly installed on the top of the rectangular plate, and a cam rotatably connected to the vertical plate is fixedly installed at the output shaft of the servo motor.

[0011] Preferably, both left and right sides of the inner wall of the frame are designed to be open, the frame is designed to be U-shaped, and an anti-slip pad is fixedly installed on the bottom of the base.

[0012] Preferably, a bearing is fixedly installed on the right end of the threaded rod, and the threaded rod is rotatably connected to the right side of the inner wall of the mounting groove through the bearing. A circular hole is opened inside the support block, and the size of the circular hole is adapted to the support ring. A limiting hole adapted to the support ring is opened inside the cross plate.

[0013] Preferably, a trapezoidal groove is provided on the inner side of the movable block, the size of the trapezoidal groove is adapted to the trapezoidal block, the front and rear sides of the inner wall of the trapezoidal groove are both open, a card slot adapted to the card block is provided on the bottom of the movable block, the number of the fixed springs is six, a through hole adapted to the pull rod is provided inside the right-angle plate, and the outer side of the pull ring is wrapped with a sponge cover.

[0014] Preferably, the bottom of the sampling tube is designed with a tapered mouth, the three partitions are equidistantly distributed, the number of the leakage holes is fifteen and five are distributed in a group equidistantly from top to bottom, and one end of the bottom of the baffle is rotatably connected to the mounting hole through a support shaft.

[0015] Preferably, the frame is designed to be inclined, and a strip hole adapted to the moving trajectory of the round rod is opened inside the frame, a limiting strip hole adapted to the vertical plate is opened inside the rectangular plate, a moving hole is opened inside the vertical plate, and the front end of the cam is slidably connected to the moving hole through a connecting seat.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an automated fishery bottom sampler having the following features:

[0018] Beneficial effects:

[0019] 1. The automated fishery bottom sediment sampler can sample bottom sediments at different depths at the same time by setting a sampling mechanism. When the sampling mechanism reaches a predetermined position, the servo motor starts, and the servo motor drives the cam to rotate. The cam pushes the round rod downward through the vertical plate and the mounting frame. The round rod slides in the frame to push the baffle to rotate. When the baffle is opened, the bottom sediment sample can enter the sampling cylinder through the opening. After the sampling is completed, the servo motor reverses to close the baffle to prevent the sample from being lost. By setting three different mounting holes from high to low, bottom sediments at different depths can be sampled. The partition in the sampling cylinder divides the sample into multiple parts for subsequent analysis. The design of the water leakage hole allows excess water to be discharged from the sampling cylinder to maintain the purity of the sample, thereby achieving the purpose of sampling bottom sediments at different depths at the same time.

[0020] 2. The automated fishery bottom sampler is convenient for disassembly of the sampling mechanism and subsequent internal cleaning by setting a connecting mechanism. When installing the sampling mechanism, first pull the pull rod and the push plate downward through the pull ring to compress the fixed spring. At this time, the card block moves downward, and the moving block slides from the front side of the trapezoidal block and is installed on the outside of the trapezoidal block and adjusted to a suitable position. After the adjustment is completed, release the pull ring, and the push plate is reset under the push of the tension of the fixed spring, and the card block is re-engaged in the card slot of the moving block, thereby fixing the position of the moving block. When it is necessary to unlock and separate the sampling mechanism, the push plate and the card block are moved again through the external pull rod, and the card block is disengaged from the card slot. At this time, the moving block can slide on the trapezoidal block to separate from the cross plate, and the sampling mechanism can be disassembled to clean the residue, thereby achieving the purpose of easy disassembly and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the structure of the present invention;

[0022] Figure 2 It is a left-side and upward stereoscopic view of the structure of the present invention;

[0023] Figure 3 It is a bottom-up cutaway stereoscopic view of a local structure of the present invention;

[0024] Figure 4 It is an exploded view of a local structure of the present invention from above;

[0025] Figure 5 It is an exploded view of a local structure of the present invention from above;

[0026] Figure 6 It is a left-side stereogram of the local structure of the present invention;

[0027] Figure 7 It is a sectional stereoscopic diagram of the local structure of the present invention.

[0028] In the figure: 1 base, 2 lifting assembly, 21 frame, 22 electric slide rail, 23 electric slider, 3 lifting plate, 4 moving mechanism, 41 mounting groove, 42 servo motor, 43 threaded rod, 44 threaded block, 45 connecting column, 46 support block, 47 support ring, 48 cross plate, 5 connecting mechanism, 51 trapezoidal block, 52 moving block, 53 vertical plate, 54 right-angle plate, 55 push plate, 56 fixing spring, 57 pull rod, 58 pull ring, 59 card block, 6 sampling mechanism, 601 rectangular plate, 602 sampling tube, 603 partition, 604 leaking hole, 605 mounting hole, 606 baffle, 607 frame, 608 vertical plate, 609 mounting frame, 610 round rod, 611 servo motor, 612 cam, 7 counterweight. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-7 The present invention provides a technical solution: an automated fishery bottom sampler, comprising a base 1, a lifting assembly 2 is arranged on the top of the base 1, a lifting plate 3 is arranged on one side of the lifting assembly 2, a counterweight block 7 located on the left side of the lifting assembly 2 is fixedly installed on the top of the base 1, a moving mechanism 4 extending to the bottom thereof is arranged on the inner side of the lifting plate 3, a connecting mechanism 5 is arranged at the bottom of the moving mechanism 4, and a sampling mechanism 6 is arranged at the bottom of the connecting mechanism 5.

[0031] The lifting assembly 2 includes a frame 21, the frame 21 is fixedly installed on the top of the base 1, an electric slide rail 22 fixedly connected to the base 1 is fixedly installed on the inner top wall of the frame 21, an electric slider 23 is slidably installed on the right side of the electric slide rail 22, the electric slide rail 22 and the electric slider 23 are both electrically connected to an external power supply and controlled by an external program, the lifting plate 3 is fixedly installed on the right side of the electric slider 23 and is slidably connected to the inner wall of the frame 21, one end of the lifting plate 3 extends to the right side of the frame 21, and the counterweight block 7 is located on the left side of the frame 21.

[0032] After receiving the control signal, the electric slide rail 22 starts and drives the electric slider 23 to move vertically on the electric slide rail 22. The electric slider 23 drives the lifting plate 3 to move up and down, thereby adjusting the vertical position of the sampling mechanism 6. The setting of the counterweight block 7 helps to maintain the stability of the entire device during the lifting process.

[0033] The inner walls of the frame 21 are both open on the left and right sides. The frame 21 is U-shaped. An anti-skid pad is fixedly installed on the bottom of the base 1.

[0034] The moving mechanism 4 includes a mounting groove 41. The mounting groove 41 is opened at the bottom of the lifting plate 3. A servo motor 42 is fixedly installed on the left side of the inner wall of the mounting groove 41. The servo motor 42 is electrically connected to an external power supply and is controlled by an external program. The output shaft of the servo motor 42 can rotate forward and backward. A threaded rod 43 is fixedly installed at the output shaft of the servo motor 42 and is rotatably connected to the right side of the inner wall of the mounting groove 41. The outer side of the threaded rod 43 is threadedly connected to a threaded block 44 that is slidably connected to the inner top wall of the mounting groove 41. A connecting column 45 extending to the bottom of the lifting plate 3 is fixedly installed at the bottom of the threaded block 44. Two support blocks 46 are fixedly installed at the bottom of the lifting plate 3. A support ring 47 is fixedly installed between the two support blocks 46. A cross plate 48 is slidably installed on the outer side of the support ring 47. The cross plate 48 is fixedly connected to the bottom of the connecting column 45.

[0035] The servo motor 42 is started to drive the threaded rod 43 to rotate. The threaded block 44 is threadedly connected to the threaded rod 43. Therefore, when the threaded rod rotates, the threaded block will slide along the inner wall of the mounting groove 41. The threaded block 44 drives the cross plate 48 and the connecting mechanism 5 and the sampling mechanism 6 to move horizontally through the connecting column 45. The design of the support block 46 and the support ring 47 provides a stable support and sliding track for the cross plate 48.

[0036] A bearing is fixedly installed at one end of the right side of the threaded rod 43, and the threaded rod 43 is rotatably connected to the right side of the inner wall of the mounting groove 41 through the bearing. A circular hole is opened inside the support block 46, and the size of the circular hole is adapted to the support ring 47. A limiting hole adapted to the support ring 47 is opened inside the cross plate 48.

[0037] The connecting mechanism 5 includes a trapezoidal block 51, a trapezoidal block 51 is fixedly installed at the bottom of the cross plate 48, and a moving block 52 is slidably installed on the outer side of the trapezoidal block 51. The design of the trapezoidal block 51 allows the moving block 52 to slide only in one direction thereon, and has a certain self-locking function, thereby enhancing the stability of the connection. Vertical plates 53 are fixedly installed on the left and right sides of the moving block 52, a right-angle plate 54 extending to the bottom of the moving block 52 is fixedly installed on the rear side of the cross plate 48, a push plate 55 is slidably installed on the front side of the right-angle plate 54, a fixed spring 56 fixedly connected to the right-angle plate 54 is fixedly installed at the bottom of the push plate 55, and the elastic coefficient of the fixed spring 56 can be set according to demand, a pull rod 57 extending to the bottom of the right-angle plate 54 is fixedly installed at the bottom of the push plate 55, a pull ring 589 is fixedly installed at the bottom of the pull rod 57, and a clamping block 59 clamped with the moving block 52 is fixedly installed on the top of the push plate 55.

[0038] A trapezoidal groove is provided on the inner side of the moving block 52, and the size of the trapezoidal groove is adapted to the trapezoidal block 51. The front and rear sides of the inner wall of the trapezoidal groove are both open. A card slot adapted to the card block 59 is provided at the bottom of the moving block 52. The precise fit between the card block 59 and the card slot ensures the stability of the moving block 52 in the fixed position and avoids shaking or falling off during the sampling process. There are six fixing springs 56. A through hole adapted to the pull rod 57 is provided inside the right-angle plate 54, and the outer side of the pull ring 58 is wrapped with a sponge cover.

[0039] The sampling mechanism 6 includes a rectangular plate 601, a rectangular plate 601 is fixedly installed between the bottoms of the two vertical plates 53, the rectangular plate 601 connects the two vertical plates 53 and serves as a support for the sampling tube 602, a sampling tube 602 is fixedly installed at the bottom of the rectangular plate 601, three partitions 603 are fixedly installed inside the sampling tube 602, a water leakage hole 604 located above the partition 603 is opened on the left side of the inner wall of the sampling tube 602, a mounting hole 605 is opened on the right side of the inner wall of the sampling tube 602, a baffle 606 is rotatably connected between the front and rear sides of the inner wall of the mounting hole 605, a frame 607 is fixedly installed on the right side of the baffle 606, and the baffle 606 The frame 607 is used to control the outflow of the material in the sampling tube 602. The top of the rectangular plate 601 is slidably installed with a vertical plate 608 extending to its bottom. The front side of the vertical plate 608 is fixedly installed with a mounting frame 609 located on the outside of the frame 607. A round rod 610 that penetrates the frame 607 is fixedly installed between the front and rear sides of the inner wall of the mounting frame 609. A servo motor 611 is fixedly installed on the top of the rectangular plate 601. The servo motor 611 is electrically connected to an external power supply and is controlled by an external program. The output shaft of the servo motor 611 can rotate forward and reverse. A cam 612 that is rotatably connected to the vertical plate 608 is fixedly installed at the output shaft of the servo motor 611.

[0040] The bottom of the sampling tube 602 is designed with a tapered mouth, and the three partitions 603 are distributed at equal distances. The number of leakage holes 604 is fifteen, and five are distributed in a group at equal distances from top to bottom. The bottom end of the baffle 606 is rotatably connected to the mounting hole 605 through a support shaft, and the frame 607 is designed with an inclined design. The interior of the frame 607 is provided with a strip hole that is compatible with the moving trajectory of the round rod 610, the interior of the rectangular plate 601 is provided with a limit strip hole that is compatible with the vertical plate 608, and the interior of the vertical plate 608 is provided with a moving hole, and the front end of the cam 612 is slidably connected to the moving hole through a connecting seat.

[0041] When in use, place the sampler in the water area where sampling is required, and ensure that the base 1 is stable and the anti-skid pad is in close contact with the ground. According to actual needs, set the sampling depth, horizontal moving distance, sampling time and other parameters through the control panel, start the electric slide rail 22 through the control signal to drive the electric slider 23 to move up and down, adjust the lifting plate 3 to a predetermined depth, start the servo motor 42, drive the threaded rod 43 to rotate, and the threaded block 44 is threadedly connected to the threaded rod 43. Therefore, when the threaded rod 43 rotates, the threaded block 44 will slide along the inner wall of the installation groove 41, and the threaded block 44 drives the cross plate 48 and the connecting mechanism 5 and the sampling mechanism 6 through the connecting column 45. The design of the support block 46 and the support ring 47 provides stable support and sliding tracks for the cross plate 48, so that the sampling mechanism 6 moves horizontally to the specified position, and the servo motor 611 is started to drive the cam 612 to rotate, so that the baffle 606 is opened for sampling. After the sampling is completed, the servo motor 611 is reversed to close the baffle 606, and the electric slide rail 22 is started to lift the lifting plate 3 above the water surface, disassemble the sampling mechanism 6, and take out the sample in the sampling tube 602 for subsequent processing and analysis. After use, the sampler is cleaned and maintained, including cleaning the sampling tube 602, checking the wear of each component, and applying anti-rust oil.

[0042] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0043] In summary, the automated fishery bottom sampler can sample bottom samples of different depths at the same time by setting the sampling mechanism 6. When the sampling mechanism 6 reaches the predetermined position, the servo motor 611 is started, and the servo motor 611 drives the cam 612 to rotate. The cam 612 pushes the round rod 610 downward through the vertical plate 608 and the mounting frame 609. The round rod 610 slides in the frame 607 and pushes the baffle 606 to rotate. When the baffle 606 is opened, the bottom sample can enter the sampling tube 602 through the opening. After the sampling is completed, the servo motor 611 is reversed to close the baffle 606 to prevent the loss of samples. By setting three different installation holes 605 from high to low, the bottom sediments of different depths can be sampled. The partition 603 in the sampling tube 602 divides the sample into multiple parts for subsequent analysis. The design of the leakage hole 604 allows excess water to be discharged from the sampling tube 602 to maintain the purity of the sample, thereby achieving the purpose of sampling bottom sediments of different depths at the same time. By setting the connecting mechanism 5, the sampling mechanism 6 is easy to disassemble, which is convenient for subsequent internal cleaning. When installing the sampling mechanism 6, first pull the pull rod 57 and the push plate 55 downward through the pull ring 58 to compress the fixed spring 56. At this time, the card block 59 moves downward, and the moving block 52 slides from the front side of the trapezoidal block 51 and is installed on the outside of the trapezoidal block 51 and adjusted to a suitable position. After the adjustment is completed, release the pull ring 58, and the push plate 55 is reset under the tension of the fixed spring 56. The card block 59 is re-engaged in the card slot of the moving block 52, thereby fixing the position of the moving block 52. When it is necessary to unlock and separate the sampling mechanism 6, the external pull rod 57 is used again. 8 moves the push plate 55 and the card block 59, and the card block 59 comes out of the card slot. At this time, the moving block 52 can slide on the trapezoidal block 51, thereby separating from the cross plate 48, and the sampling mechanism 6 can be disassembled to clean the residues, thereby achieving the purpose of easy disassembly for cleaning, and solving the problem that there is only a single sampling structure, sampling the bottom sediment at a single location, and it is impossible to sample the bottom sediments at different depths at the same time, which affects the accuracy of the sampling data, and the sampler cannot be disassembled quickly, and the residual objects in the sampler after use are inconvenient to clean.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated fishery bottom sampler, comprising a base (1), a lifting assembly (2) being arranged on the top of the base (1), a lifting plate (3) being arranged on one side of the lifting assembly (2), a counterweight (7) being fixedly mounted on the top of the base (1) and located on the left side of the lifting assembly (2), characterized in that: The inner side of the lifting plate (3) is provided with a moving mechanism (4) extending to the bottom thereof, the bottom of the moving mechanism (4) is provided with a connecting mechanism (5), and the bottom of the connecting mechanism (5) is provided with a sampling mechanism (6); The lifting assembly (2) comprises a frame (21), the frame (21) is fixedly mounted on the top of the base (1), an electric slide rail (22) fixedly connected to the base (1) is fixedly mounted on the inner top wall of the frame (21), an electric slider (23) is slidably mounted on the right side of the electric slider (22), the lifting plate (3) is fixedly mounted on the right side of the electric slider (23) and is slidably connected to the inner wall of the frame (21), one end of the lifting plate (3) extends to the right side of the frame (21), and the counterweight (7) is located on the left side of the frame (21).

2. The automatic fishery bottom sampler according to claim 1, characterized in that: The moving mechanism (4) comprises a mounting groove (41), the bottom of the lifting plate (3) is provided with a mounting groove (41), a servo motor (42) is fixedly mounted on the left side of the inner wall of the mounting groove (41), a threaded rod (43) is fixedly mounted at the output shaft of the servo motor (42) and is rotatably connected to the right side of the inner wall of the mounting groove (41), the outer side of the threaded rod (43) is threadedly connected to a threaded block (44) which is slidably connected to the inner top wall of the mounting groove (41), a connecting column (45) extending to the bottom of the lifting plate (3) is fixedly mounted on the bottom of the lifting plate (3), two supporting blocks (46) are fixedly mounted on the bottom of the lifting plate (3), a supporting ring (47) is fixedly mounted between the two supporting blocks (46), a transverse plate (48) is slidably mounted on the outer side of the supporting ring (47), and the transverse plate (48) is fixedly connected to the bottom of the connecting column (45).

3. An automated fishery bottom sampler according to claim 2, characterized in that: The connecting mechanism (5) comprises a trapezoidal block (51), the bottom of the transverse plate (48) is fixedly mounted with the trapezoidal block (51), the outer side of the trapezoidal block (51) is slidably mounted with a moving block (52), the left and right sides of the moving block (52) are fixedly mounted with vertical plates (53), the rear side of the transverse plate (48) is fixedly mounted with a right-angle plate (54) extending to the bottom of the moving block (52), the front side of the right-angle plate (54) is slidably mounted with a push plate (55), the bottom of the push plate (55) is fixedly mounted with a fixing spring (56) fixedly connected to the right-angle plate (54), the bottom of the push plate (55) is fixedly mounted with a pull rod (57) extending to the bottom of the right-angle plate (54), the bottom of the pull rod (57) is fixedly mounted with a pull ring (589), and the top of the push plate (55) is fixedly mounted with a clamping block (59) clamped with the moving block (52).

4. The automatic fishery bottom sampler according to claim 3, characterized in that: The sampling mechanism (6) comprises a rectangular plate (601), a rectangular plate (601) is fixedly installed between the bottoms of the two vertical plates (53), a sampling tube (602) is fixedly installed at the bottom of the rectangular plate (601), three partitions (603) are fixedly installed inside the sampling tube (602), a water leakage hole (604) located above the partition (603) is opened on the left side of the inner wall of the sampling tube (602), a mounting hole (605) is opened on the right side of the inner wall of the sampling tube (602), and a baffle (606) is rotatably connected between the front and rear sides of the inner wall of the mounting hole (605), A frame (607) is fixedly installed on the right side of the baffle (606); a vertical plate (608) extending to the bottom is slidably installed on the top of the rectangular plate (601); a mounting frame (609) located outside the frame (607) is fixedly installed on the front side of the vertical plate (608); a round rod (610) penetrating the frame (607) is fixedly installed between the front and rear sides of the inner wall of the mounting frame (609); a servo motor (611) is fixedly installed on the top of the rectangular plate (601); and a cam (612) rotatably connected to the vertical plate (608) is fixedly installed at the output shaft of the servo motor (611).

5. The automatic fishery bottom sampler according to claim 1, characterized in that: The inner walls of the frame (21) are both open on the left and right sides, the frame (21) is U-shaped, and a non-slip pad is fixedly installed on the bottom of the base (1).

6. The automatic fishery bottom sampler according to claim 2, characterized in that: A bearing is fixedly mounted on one right end of the threaded rod (43), and the threaded rod (43) is rotatably connected to the right side of the inner wall of the mounting groove (41) via the bearing. A circular hole is provided inside the support block (46), and the size of the circular hole is matched with the support ring (47). A limiting hole matched with the support ring (47) is provided inside the cross plate (48).

7. The automatic fishery bottom sampler according to claim 3, characterized in that: A trapezoidal groove is provided on the inner side of the movable block (52), the size of the trapezoidal groove is adapted to the trapezoidal block (51), the inner wall of the trapezoidal groove is open on both the front and rear sides, a clamping groove adapted to the clamping block (59) is provided on the bottom of the movable block (52), the number of the fixing springs (56) is six, a through hole adapted to the pull rod (57) is provided inside the right-angle plate (54), and the outer side of the pull ring (58) is wrapped with a sponge cover.

8. The automatic fishery bottom sampler according to claim 4, characterized in that: The bottom of the sampling tube (602) is designed with a constricted mouth, the three partitions (603) are distributed at equal distances, the number of the leakage holes (604) is fifteen and five are distributed in a group at equal distances from top to bottom, and one end of the bottom of the baffle (606) is rotatably connected to the mounting hole (605) through a support shaft.

9. The automatic fishery bottom sampler according to claim 4, characterized in that: The frame (607) is designed to be inclined, and a strip hole that matches the moving trajectory of the round rod (610) is opened inside the frame (607), a limiting strip hole that matches the vertical plate (608) is opened inside the rectangular plate (601), and a moving hole is opened inside the vertical plate (608), and one end of the front side of the cam (612) is slidably connected to the moving hole through a connecting seat.

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