A clam dredger with a sand feeding device

Abstract

The utility model discloses a mud snail machine of catching with silt feeding device, including the chassis, mobile device and suction trapping device, still include the shell and silt feeding device, and suction trapping device is used for the silt in the shell to carry out the extraction with shell internal communication, and silt feeding device is located in the shell and is used for silt to feed along the shell axial in the shell, silt feeding device includes feed shaft, feed piece and limit structure, and feed shaft is rotatably connected with the shell and is limited to the axial and radial limit of feed shaft through limit structure, and feed piece is set up on the outer edge surface of feed shaft in spiral shape and is used for silt to feed along the shell axial, in the utility model, through the design of silt feeding device, the mud snail in the deep layer of silt is brought out and is caught, second, the diameter of the through -hole on the shell is in the decreasing relationship, realizes the layer -by -layer filtration of silt, improves the catching efficiency, again, the setting of the horn -shaped auxiliary piece in the storage space can guide silt to concentrate, reduces the possibility of silt jam.

Description

Technical Field

[0001] This utility model relates to the technical field of shellfish harvesting devices, and in particular to a mud snail harvesting machine with a mud and sand feeding device. Background Technology

[0002] Shellfish farming and harvesting are important components of the fisheries industry. Mud snails, a common shellfish ingredient, are highly sought after in the market due to their unique taste and nutritional value. However, mud snail shells are thin and brittle, making them prone to damage during harvesting, resulting in low harvesting efficiency and affecting the quality of the snails. Currently, the mud snail harvesting industry remains labor-intensive, heavily reliant on manual labor, which not only increases labor costs but also limits the development of large-scale production.

[0003] To address this issue, our team previously filed a Chinese utility model patent (publication number CN222465770U) disclosing a mud snail harvesting machine. This device achieves partial automation of mud snail harvesting through the coordinated operation of a base frame, a moving device, and a suction harvesting device. Specifically, the harvesting machine uses a visual camera to identify the location of mud snails and uses a control system to drive a steering wheel and working arm to position the suction nozzle to the target area. A negative pressure device then sucks the mud snails into the collection bucket. However, existing harvesting machines have significant technical limitations. They primarily rely on visual recognition technology for target detection, effectively harvesting mud snails only those located on the surface of the mud and sand. They cannot accurately locate and harvest mud snails buried deep in the mud and sand. This limitation restricts the harvesting range, hinders further improvements in harvesting efficiency, and fails to meet the actual production needs for harvesting deep-layer mud snails. Therefore, improving the structural design of existing harvesting machines to accommodate both surface and deep-layer mud snail harvesting has become an urgent technical challenge. Utility Model Content

[0004] The purpose of this invention is to provide a mud snail harvester with a mud and sand feeding device, in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This application provides a mud snail harvester with a mud and sand feeding device, comprising: a base frame, a moving device for driving the base frame to move, and a suction harvesting device. The feature is that it further comprises a shell and a mud and sand feeding device. The shell is cylindrical and fixedly connected to the suction harvesting device. The suction harvesting device is in communication with the inside of the shell for extracting mud and sand from the shell. The mud and sand feeding device is disposed inside the shell for feeding mud and sand along the axial direction of the shell.

[0007] The sediment feeding device includes a feeding shaft, a feeding plate, and a limiting structure. The feeding shaft is rotatably connected to the outer shell and is limited axially and radially by the limiting structure. The feeding plate is spirally arranged on the outer edge surface of the feeding shaft to feed sediment along the axial direction of the outer shell. The feeding plate is driven by the feeding shaft and rotates in contact with the inner edge surface of the outer shell.

[0008] In one possible implementation, the sediment feeding device further includes a storage space, wherein the tail end of the feed plate and the bottom wall of the outer shell form a storage space for storing the sediment transported by the feed plate, and the suction and capture device is connected to the storage space for vacuum suction of the sediment in the storage space.

[0009] In one possible implementation, the storage space is further provided with a funnel-shaped auxiliary plate, which is inwardly oriented from the storage space toward the suction and capture device, and the auxiliary plate has an auxiliary hole that communicates with the suction and capture device.

[0010] In one possible implementation, the outer shell has multiple sets of through holes communicating with the interior of the outer shell. The multiple sets of through holes are evenly distributed along the axial direction of the outer shell, and the diameter of each set of through holes decreases from the mud and sand feeding side to the suction and capture device side along the axial direction of the outer shell.

[0011] In one possible implementation, the through-hole with the smallest diameter is located on the outer wall of the storage space.

[0012] In one possible implementation, the limiting structure includes a support ring, a support column, and a limiting ring. The support ring is coaxially disposed within the housing with the feed shaft. The inner edge of the support ring is fixedly connected to the feed shaft via the support column. Two limiting rings are symmetrically disposed on both sides of the support ring to limit the position of the support ring.

[0013] In one possible implementation, the suction and capture device is further equipped with a rotary motor, and one end of the feed shaft passes through the outer casing and is fixedly connected to the output end of the rotary motor via a flange.

[0014] In one possible implementation, the suction and capture device includes a steering wheel, an operating arm, a flexible tube, a suction nozzle, a collection bucket, a negative pressure device, a control panel, and a vision camera.

[0015] In one possible implementation, the rotary motor is fixedly mounted at the end of the operating arm, and the collection bucket is connected to the inside of the outer shell via a negative pressure device, a hose, and a suction nozzle.

[0016] In one possible implementation, the end of the feed shaft away from the suction and capture device extends out of the housing and is provided with a tapered auxiliary block.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] The technical advantages of this invention are reflected in the following aspects: First, the design of the mud feeding device brings mud snails located deep in the mud to the surface for harvesting, solving the problem of the inability to harvest deep-layer mud snails in existing technologies. Second, the decreasing diameter of the holes on the shell enables layer-by-layer filtration of the mud, improving harvesting efficiency and quality. Third, the trumpet-shaped auxiliary plate in the storage space guides the mud towards the suction nozzle through its specific geometry, reducing the possibility of mud clogging. Finally, the combination of a visual camera, control system, and negative pressure device achieves fully automated mud snail harvesting, reducing reliance on manual labor and improving harvesting efficiency.

[0019] Through the above technical solution, this utility model provides a mud snail harvesting machine with a mud and sand feeding device. By adding a mud and sand feeding device, combined with a suction harvesting device and a control system, the harvesting machine achieves efficient harvesting of deep mud snails, and at the same time significantly improves the automation level and operational efficiency of the harvesting process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a right-side cross-sectional view of the outer casing of the mud and sand feeding device of this utility model;

[0022] Figure 3 This is a top-view cross-section diagram of the outer shell of the mud and sand feeding device of this utility model;

[0023] Figure 4 This is a schematic diagram of the outer shell and the mud and sand feeding device in this utility model;

[0024] Figure 5 This is a right-side view of the outer shell and the mud and sand feeding device in this utility model;

[0025] Figure 6 This is an exploded structural diagram of the outer shell and the mud and sand feeding device in this utility model.

[0026] The markings in the diagram are: 1. Base frame; 2. Mobility device; 3. Housing; 4. Feed shaft; 5. Feed plate; 6. Storage space; 7. Auxiliary plate; 8. Auxiliary hole; 9. Through hole; 10. Support ring; 11. Support column; 12. Limiting ring; 13. Rotary motor; 14. Flange; 15. Steering wheel; 16. Operating arm; 17. Flexible tube; 18. Suction nozzle; 19. Collection bucket; 20. Negative pressure device; 21. Control board; 22. Vision camera; 23. Auxiliary block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0028] use Figure 1-6 This paper describes a mud snail harvesting machine with a mud feeding device. The machine includes a base frame 1, a shell 3, a mud feeding device, and a suction harvesting device. The base frame 1 serves as the fundamental support for the entire device. The shell 3 has a cylindrical structure and is fixedly mounted on the suction harvesting device. The mud feeding device is located inside the shell 3 and communicates with the suction harvesting device. The suction harvesting device is connected to the internal storage space 6 of the shell 3 via a flexible tube 17, and is used to suck in mud and separate the mud snails from it.

[0029] The sediment feeding device includes a feed shaft 4, a feed plate 5, a limiting structure, and a storage space 6. The feed shaft 4 is rotatably connected to the housing 3 via bearings, and the limiting structure constrains the axial and radial positions of the feed shaft 4.

[0030] The limiting structure consists of a support ring 10, a support column 11, and a limiting ring 12. The support ring 10 is coaxially mounted with the feed shaft 4 inside the housing 3. The inner edge of the support ring 10 is fixedly connected to the feed shaft 4 through the support column 11. There are two limiting rings 12, which are symmetrically arranged on both sides of the support ring 10 to axially limit the support ring 10 and prevent the feed shaft 4 from shifting during rotation.

[0031] The feed plate 5 is spirally arranged on the outer edge of the feed shaft 4. The tail end of the feed plate 5 and the bottom wall of the outer shell 3 form a storage space 6, which is used to temporarily store the mud and sand transported by the feed plate 5.

[0032] The feed plate 5 rotates against the inner wall of the outer shell 3. When the feed shaft 4 rotates, the feed plate 5 gradually pushes the mud and sand along the axial direction of the outer shell 3 into the storage space 6.

[0033] The design of the outer shell 3 is shown in the figure. Multiple sets of through holes 9 are opened on its side wall. Each set of through holes 9 is evenly distributed in the axial direction of the outer shell 3. The diameter of each set of through holes 9 gradually decreases along the axial direction of the outer shell 3. The diameter of the through holes 9 near the mud and sand feeding side is larger, while the diameter of the through holes 9 near the suction and capture device side is smaller.

[0034] This design allows excess mud and sand containing mud snails to be gradually released during transport, thereby reducing the load on the negative pressure device 20. The smallest diameter through-hole 9 is located on the outer wall of the storage space 6, further reducing the amount of mud and sand entering the storage space 6.

[0035] The structure of the auxiliary plate 7 in the storage space 6 is shown in the figure. The auxiliary plate 7 is trumpet-shaped, with the larger opening facing the storage space 6 and the smaller opening facing the suction and collection device. The auxiliary plate 7 has an auxiliary hole 8 that communicates with the suction and collection device. Through the auxiliary hole 8, the mud and sand containing mud snails in the storage space 6 can be sucked into the suction and collection device.

[0036] The auxiliary plate 7 allows the sediment to be distributed more evenly before being sucked into the suction and capture device, thereby improving the stability of the extraction process.

[0037] The structure of the suction collection device is shown in the figure, including a steering wheel 15, an operating arm 16, a flexible tube 17, a suction nozzle 18, a collection bucket 19, a negative pressure device 20, a control panel, and a vision recognition module. The steering wheel 15 is used to adjust the direction of the suction nozzle 18, the operating arm 16 is used to position the suction nozzle 18 to the target area, the flexible tube 17 connects the suction nozzle 18 to the collection bucket 19, and the negative pressure device 20 generates negative pressure to suck the sediment into the collection bucket 19. The control panel receives signals from the vision recognition module and controls the movements of the steering wheel 15 and the operating arm 16 according to the signals.

[0038] The rotary motor 13 is fixedly mounted at the end of the operating arm 16. The rotary motor 13 is fixedly connected to one end of the feed shaft 4 through the flange 14 and is used to drive the feed shaft 4 to rotate. The rotary motor 13 provides stable power output through the operating arm 16 to ensure that the rotational speed of the feed shaft 4 remains constant.

[0039] The end of the feed shaft 4 furthest from the suction and collection device extends out of the outer casing 3 and is equipped with a conical auxiliary block 23, as shown in the figure. The tip of the conical auxiliary block 23 faces outward from the outer casing 3 and is used to guide the sediment into the interior of the outer casing 3 while reducing the resistance of the sediment during the feeding process. The design of the conical auxiliary block 23 allows the sediment to enter the interior of the outer casing 3 more smoothly, thereby improving the working efficiency of the sediment feeding device.

[0040] In actual operation, the base frame 1 moves to the target area via the moving device 2, and the mud and sand feeding device starts to work. The rotating motor 13 drives the feeding shaft 4 to rotate, and the feeding plate 5 rotates accordingly, gradually pushing the mud and sand along the axial direction of the outer shell 3 into the storage space 6.

[0041] During this process, multiple sets of through holes 9 on the outer shell 3 gradually release excess mud and sand from the mud snails, reducing the load on the negative pressure device 20.

[0042] After the mud and sand enter the storage space 6, under the action of the auxiliary hole 8 on the auxiliary plate 7, the mud and sand containing mud snails is sucked into the flexible tube 17 and enters the collection bucket 19 through the suction nozzle 18.

[0043] The visual recognition module monitors the harvesting process in real time and transmits the signal to the control panel. The control panel adjusts the movements of the steering wheel 15 and the operating arm 16 according to the signal to ensure that the suction nozzle 18 is always aligned with the target area.

[0044] The rotating motor 13 provides stable power output through the operating arm 16, ensuring that the rotation speed of the feed shaft 4 remains constant, thereby achieving efficient harvesting of deep mud snails.

[0045] The above description details the specific embodiments of this utility model, covering the connection relationships, positional relationships, and mutual cooperation relationships between various components, ensuring that those skilled in the art can implement the technical solution based on the contents of the specification.

[0046] To enable those skilled in the art to fully understand and implement this invention, the specific implementation principle of this invention will be further explained below in conjunction with a specific application scenario.

[0047] First, the base frame 1 moves to the target collection area via the moving device 2, and the rotating motor 13 starts and drives the feed shaft 4 to rotate. The rotation of the feed shaft 4 causes the spiral feed plate 5 to rotate against the inner wall of the outer shell 3, and the feed plate 5 gradually pushes the mud and sand along the axial direction of the outer shell 3.

[0048] During this process, the design of the pointed tip of the conical auxiliary block 23 facing outwards from the outer casing 3 allows the sediment to smoothly enter the interior of the casing 3 while reducing resistance during feeding. The sediment is gradually conveyed to the storage space 6 by the feed plate 5. This process fully utilizes the spiral structure design of the feed plate 5 to ensure continuous and stable axial movement of the sediment.

[0049] Secondly, the multiple sets of through holes 9 on the sidewalls of the outer shell 3 play a crucial role in the sediment transport process. The through holes 9 near the sediment feed side have a larger diameter, while those near the suction and collection device side have a smaller diameter. This design allows the sediment in the mud snail-containing sediment to be released gradually. As the sediment advances along the axial direction of the outer shell 3, it is gradually separated during the layer-by-layer flow due to the decreasing diameter of the holes. Larger sediment particles are discharged, while smaller particles continue to move forward. In addition, the trumpet-shaped auxiliary plate 7 in the storage space 6, through its specific geometry, guides the sediment towards the suction nozzle 18, reducing sediment accumulation in the storage space 6 and lowering the possibility of blockage.

[0050] Subsequently, after the sediment enters the storage space 6, the auxiliary plate 7 begins to function. The auxiliary plate 7 is funnel-shaped, with the larger opening facing the storage space 6 and the smaller opening facing the suction and collection device. The auxiliary plate 7 has an auxiliary hole 8. When the suction and collection device is activated, negative pressure is applied to the sediment in the storage space 6 through the auxiliary hole 8, allowing the sediment to be sucked into the flexible tube 17 and then into the collection bucket 19 through the suction nozzle 18.

[0051] The design of auxiliary plate 7 improves the stability of the extraction process and avoids problems such as mud and sand blockage or uneven extraction caused by concentrated negative pressure.

[0052] Meanwhile, the visual recognition module monitors the harvesting process in real time and transmits signals to the control panel. The control panel adjusts the movements of the steering wheel 15 and the operating arm 16 based on the received signals, ensuring that the suction nozzle 18 is always aligned with the target area. The rotary motor 13 provides stable power output through the operating arm 16, ensuring that the rotational speed of the feed shaft 4 remains constant. This process achieves efficient power transmission through the connection between the rotary motor 13 and the flange 14, guaranteeing the stable operation of the feed shaft 4. The coordinated work of the steering wheel 15 and the operating arm 16 enables the suction nozzle 18 to accurately position itself in areas with dense mud snail populations, thereby improving harvesting efficiency.

[0053] Finally, under negative pressure, the mud and sand are drawn into the collection bucket 19 through the flexible tube 17, completing the separation and collection of mud snails. Throughout the harvesting process, the limiting structure effectively constrains the axial and radial positions of the feed shaft 4, preventing it from shifting during rotation. The synergistic effect of the support ring 10, support column 11, and limiting ring 12 ensures the stable operation of the feed shaft 4, thereby guaranteeing the continuity of mud and sand transport. In addition, the design of the conical auxiliary block 23 further optimizes the mud and sand feeding efficiency, enabling deep mud snails to be effectively carried out and enter the storage space 6.

[0054] In summary, this invention achieves efficient harvesting of deep-sea mud snails through the aforementioned steps and the coordinated operation of various components. Firstly, the design of the mud feeding device brings out mud snails located deep within the mud for harvesting, solving the problem of the inability to harvest deep-sea mud snails in existing technologies.

[0055] Secondly, the diameter of the through holes 9 on the outer shell 3 decreases in a progressively smaller manner, which enables layer-by-layer filtration of mud and sand, thereby improving harvesting efficiency and quality.

[0056] Furthermore, the trumpet-shaped auxiliary plate 7 within the storage space 6, through its specific geometry, guides the sediment towards the suction nozzle 18, reducing the possibility of sediment blockage.

[0057] Finally, by combining the visual camera 22, the control system, and the negative pressure device 20, the fully automated operation of mud snail harvesting was realized, reducing reliance on manual labor and improving harvesting efficiency.

[0058] In the description of this utility model, it should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0059] Furthermore, in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0060] On the other hand, it should be noted that, unless otherwise explicitly specified and limited, the terms "located at," "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A mud snail harvesting machine with a mud and sand feeding device, characterized in that, The device includes a base frame (1), a driving mechanism (2) for moving the base frame (1), and a suction and capture device, characterized in that: It also includes a shell (3) and a mud and sand feeding device. The shell (3) is cylindrical and fixedly connected to the suction and capture device. The suction and capture device is connected to the inside of the shell (3) to extract the mud and sand inside the shell (3). The mud and sand feeding device is located inside the shell (3) for feeding the mud and sand along the axial direction of the shell (3). The sediment feeding device includes a feeding shaft (4), a feeding plate (5), and a limiting structure. The feeding shaft (4) is rotatably connected to the outer shell (3) and the limiting structure limits the axial and radial directions of the feeding shaft (4). The feeding plate (5) is spirally arranged on the outer edge surface of the feeding shaft (4) to feed sediment along the axial direction of the outer shell (3). The feeding plate (5) is driven by the feeding shaft (4) and rotates in contact with the inner edge surface of the outer shell (3).

2. A mud snail harvester with a mud and sand feeding device according to claim 1, characterized in that, The sediment feeding device also includes a storage space (6). The tail end of the feeding plate (5) and the bottom wall of the outer shell (3) form a storage space (6) for storing the sediment transported by the feeding plate (5). The suction and capture device is connected to the storage space (6) for vacuum suction of the sediment in the storage space (6).

3. A mud snail harvester with a mud and sand feeding device according to claim 2, characterized in that, The storage space (6) is also provided with a funnel-shaped auxiliary plate (7), which is inwardly oriented from the storage space (6) toward the suction and capture device. The auxiliary plate (7) is provided with an auxiliary hole (8) that communicates with the suction and capture device.

4. A mud snail harvester with a mud and sand feeding device according to claim 2 or 3, characterized in that, The outer shell (3) has multiple sets of through holes (9) that communicate with the interior of the outer shell (3). The multiple sets of through holes (9) are evenly distributed along the axial direction of the outer shell (3). The diameter of each set of through holes (9) decreases from the mud and sand feeding side to the suction and capture device side along the axial direction of the outer shell (3).

5. A mud snail harvester with a mud and sand feeding device according to claim 4, characterized in that, The smallest diameter through hole (9) is located on the outer wall of the storage space (6).

6. A mud snail harvester with a mud and sand feeding device according to claim 1, characterized in that, The limiting structure includes a support ring (10), a support column (11), and a limiting ring (12). The support ring (10) is coaxially disposed inside the housing (3) with the feed shaft (4). The inner edge of the support ring (10) is fixedly connected to the feed shaft (4) via the support column (11). The limiting rings (12) are two in number and symmetrically disposed on both sides of the support ring (10) for limiting the support ring (10).

7. A mud snail harvester with a mud and sand feeding device according to claim 6, characterized in that, The suction and capture device is also equipped with a rotating motor (13). One end of the feed shaft (4) passes through the outer shell (3) and is fixedly connected to the output end of the rotating motor (13) via a flange (14).

8. A mud snail harvester with a mud and sand feeding device according to claim 7, characterized in that, The suction and capture device includes a steering wheel (15), an operating arm (16), a flexible tube (17), a suction nozzle (18), a collection bucket (19), a negative pressure device (20), a control board (21), and a vision camera (22).

9. A mud snail harvester with a mud and sand feeding device according to claim 8, characterized in that, The rotating motor (13) is fixedly installed at the end of the operating arm (16), and the collection bucket (19) is connected to the inside of the outer shell (3) via a negative pressure device (20), a hose and a suction nozzle (18).

10. A mud snail harvester with a mud and sand feeding device according to claim 9, characterized in that, The feed shaft (4) extends out of the outer casing (3) at the end away from the suction and capture device and is provided with a conical auxiliary block (23).

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