Automatic harvesting and seeding machine for mud flat shellfish

Abstract

The invention discloses an automatic harvesting and seedling sowing machine for mud flat shellfish, which comprises a vehicle body, a harvesting machine head mounted at the front part of the vehicle body, a vertical lifting mechanism mounted in the middle of the vehicle body, a seedling sowing device mounted at the rear part of the vehicle body, the vertical lifting mechanism comprises an air cylinder mounted on a chassis of the vehicle body, and the output end of the air cylinder is connected with a shear fork type lifting frame; a lifting platform is connected to the top of the shear fork type lifting frame, and a folding plate is hinged to the side edge of the lifting platform. The harvesting, transferring and seedling sowing functions are integrated, coordinated design is carried out, the soil breaking shovel has the functions of harvesting, soil turning, soil breaking and seedling sowing, mechanization of the whole flow of mudflat shellfish culture is achieved, and the operation efficiency is greatly improved; by arranging the vertical lifting mechanism and the foldable lifting platform, automatic unloading of collected shellfishes is achieved, potential safety hazards caused by manual carrying of heavy objects are avoided, and operation safety is improved.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture agricultural machinery, specifically relating to an automatic harvesting and seeding machine for shellfish in tidal flats. Background Technology

[0002] Mudflat shellfish farming is a pillar industry of my country's marine aquaculture, characterized by its large scale, complete industrial chain, and high economic value. The shellfish farming cycle mainly includes seeding and harvesting. Traditional manual methods rely mainly on manpower using simple tools such as shovels, rakes, and nets to dig and collect shellfish on the mudflats, which is inefficient, labor-intensive, and heavily reliant on experience.

[0003] In some regions, automated harvesting machinery has begun to be promoted, with mechanized harvesting efficiency reaching up to 10 times that of manual harvesting. Currently, shellfish harvesting machinery on the market is mainly based on improvements to beach cleaning machines and rice harvesters. For example, Chinese patent CN120130450A of Nantong Beimu Agricultural Technology Co., Ltd. discloses a combined tidal flat shellfish harvesting device and method, which consists of a frame, a walking module, a harvesting module, a sand-cleaning module, and a conveying module. The harvesting module includes a roller soil breaker and a roller shovel picker. The sand-cleaning module consists of a vibrating cleaning screen, a planar four-bar linkage mechanism, and a vibrating motor. The vibrating motor drives the screening and cleaning actions, and the cleaning nozzles perform hydraulic flushing of the shellfish and sand.

[0004] In addition, in the field of shellfish harvesting, Chinese patent CN215500992U discloses an automatic shellfish harvester for tidal flats. Through the setting of sand-shoveling plates, sand-filtering conveyor belts, screening conveyor belts and collection conveyor belts, the height of the shellfish touching the ground can be adjusted according to environmental needs by setting rotatable sand-shoveling plates and wing plates. Then, the setting of screening conveyor belts filters out the smaller shellfish and keeps the larger ones.

[0005] Chinese patent CN223364839U discloses a double-layer shovel device for harvesting shellfish in tidal flats and its shellfish harvesting equipment. The double-layer shovel device for harvesting shellfish in tidal flats includes a support frame, a double-layer shovel, and a double-layer shovel drive mechanism. The double-layer shovel is rotatably mounted on the support frame. The double-layer shovel drive mechanism is used to drive the double-layer shovel to vibrate in order to complete the harvesting of shellfish.

[0006] The common technical defects of the above-mentioned prior art are as follows: 1. After the harvested shellfish are collected using containers such as baskets and bags, they need to be lifted off the harvester. The containers are heavy and difficult for one person to handle. Sometimes, to reduce the workload, the harvested shellfish need to be carried off the machine while it is moving, which poses a significant safety hazard; 2. The machine filters out smaller shellfish larvae to achieve sustainable development, but the larvae filtered on the sides of the machine will be crushed by the machine's tracks, indicating a design flaw; 3. The above-mentioned prior art only provides harvesting devices and methods for tidal flat shellfish, while seeding still relies on manual labor.

[0007] In the field of shellfish seeding, mechanized seeding aims to achieve precise, efficient, and uniform operations. The main technical equipment includes centrifugal seeding devices and air-blowing seeding devices.

[0008] Chinese patent CN111109169A discloses an automated shellfish seeding device, but its disadvantage is that it is too large to move and is difficult to apply to large areas of mudflats. Existing technology also discloses an air-blowing shellfish seeding device and its seeding method. A seedling box is fixed to a frame, and multiple seedling discharge components are provided at the lower end of the seedling box. The upper and lower ends of the shells in the seedling discharge components are fixed to seedling discharge pipes and seedling guide pipes, and the upper end of the seedling discharge pipes is fixed to the seedling box. A rotating shaft passes through a pair of holes opened in each shell and forms a rotating pair with the frame. Seedling separation plates are provided on the rotating shaft at positions within the inner cavities of each shell. In the seedling blowing mechanism, the exhaust port of the blower is connected to the air guide pipe through an exhaust pipe and a solenoid valve. Multiple seedling blowing pipes are fixed on the air guide pipe. This prior art provides an integrated pneumatic seeding method.

[0009] Chinese patent CN208768735U discloses a shellfish seeding machine for tidal flats. The frame has a pair of front wheels and a pair of rear wheels at its bottom. A first sprocket is located at the axle end of each front wheel, and the first sprocket is connected to a second sprocket via a transmission chain. The second sprocket is keyed to one end of a seeding shaft that is rotatably supported on the frame. Multiple evenly distributed seeders are arranged on the frame. This prior art provides an integrated mechanical power seeding method.

[0010] In summary, existing technologies still have shortcomings in terms of safety during harvesting operations, navigability in complex soft tidal flats, shellfish damage control, and the level of system automation. Therefore, there is a need to develop a new type of shellfish harvester that can adapt to complex tidal flat geology, achieve efficient and low-damage harvesting, and potentially integrate precision seeding functions. Summary of the Invention

[0011] To address the problems mentioned in the background section, this invention provides an automatic harvesting and seeding machine for shellfish in tidal flats.

[0012] To achieve at least one of the above objectives, the technical solution adopted by the present invention is as follows: An automatic shellfish harvesting and seeding machine for tidal flats includes a vehicle body, a harvester head mounted at the front of the vehicle body, a vertical lifting mechanism mounted in the middle of the vehicle body, and a seeding device mounted at the rear of the vehicle body. A tracked walking device is mounted on the vehicle body, and an oil tank and engine are located in the middle of the vehicle body. The engine is connected to the tracked walking device and the harvester head power unit via belt drive. A driver's cab is integrally mounted on the vehicle body, and an electronic control device is installed inside the driver's cab. A transverse conveyor belt is also provided at the front of the vehicle body, and a longitudinally inclined upward transfer conveyor belt is mounted at the end of the transverse conveyor belt. The transfer conveyor belt is mounted on the vehicle body via a conveyor belt bracket, and a motor is mounted on the top of the conveyor belt bracket to drive the transfer conveyor belt. The vertical lifting mechanism includes a cylinder mounted on the vehicle chassis, the output end of the cylinder is connected to a scissor lift frame, the top of the scissor lift frame is connected to a lifting platform, and the side of the lifting platform is hinged with a folding plate. The seedling sowing device includes a seedling frame installed at the rear of the vehicle body. A seedling trough is installed on the top of the seedling frame, and the bottom of the seedling trough has hollowed-out seedling holes, the number of which is 1-8. An air blowing pipe is connected to the bottom of each seedling hole. A seedling motor is fixedly installed on the side of the frame. The output end of the seedling motor is connected to a horizontally set rotary shaft. A rotating blade is set on the rotary shaft, and the rotary shaft passes through the middle of the air blowing pipes. An air pump is also installed at the rear of the vehicle body. The air outlet of the air pump is connected to the bottom of the air blowing pipes through a pipe.

[0013] Furthermore, the harvester head includes a top truss, the rear end of which is hinged to the vehicle body, and the front end of which is hinged to a hydraulic telescopic arm. The other end of the hydraulic telescopic arm is connected to a telescopic arm located at the front of the vehicle body. A filter conveyor belt that slopes backward and upward is suspended below the middle of the top truss. A driven shaft is connected through the front of the top truss. The driven shaft is connected to a driving shaft via a second gearbox. The driving shaft is connected to a first gearbox, which is connected to the output end of the engine via a transmission mechanism. Gearboxes are connected to both sides of the driven shaft, and a gearbox is provided between the two gearboxes. The system includes a first roller brush and a second roller brush. A driven shaft provides power to the first and second roller brushes via gear transmission. A feed roller is located in front of the first roller brush, and the driven shaft provides power to the feed roller via gear transmission. A vibrating screen plate is installed below the two gearboxes. Guide plates are located below the vibrating screen plate and the filter conveyor belt. There are two guide plates, which are detachably and symmetrically installed on the gearboxes on both sides and the auxiliary frame of the top truss. Several soil-breaking shovels are located in front of the feed rollers. There are 4-8 soil-breaking shovels, which are fixedly connected to the auxiliary frame of the top truss.

[0014] Furthermore, the tracked walking device is an articulated track, which is divided into 2-4 segments to enhance its adaptability on soft tidal flats.

[0015] Furthermore, the electronic control device is electrically connected to the motor, seedling motor, air pump, and cylinder to achieve centralized control of each actuator.

[0016] Furthermore, the first roller brush, the second roller brush, and the feed roller are all composed of multiple continuous bristle clusters, which are made of stainless steel wire to reduce damage to the shells of shellfish.

[0017] The beneficial effects of this invention compared to the prior art are as follows: 1. Based on existing technology, this invention integrates harvesting, transportation and seeding functions into one integrated system and has been designed in a coordinated manner. The soil-breaking shovel has the functions of harvesting and turning the soil as well as breaking the soil and seeding, realizing the mechanization of the entire process of shellfish farming in tidal flats, greatly improving work efficiency and reducing labor intensity.

[0018] 2. This invention achieves automated unloading of shellfish after harvesting by setting up a vertical lifting mechanism and a foldable lifting platform, avoiding the safety hazards caused by manually handling heavy objects and improving operational safety.

[0019] 3. Through optimized design, this invention guides the screened small-sized shellfish larvae to outside the machine's track range, preventing the larvae from being crushed and overcoming the shortcomings of existing technologies.

[0020] 4. The tracked walking device of the present invention adopts an articulated segmented design, which has the following advantages compared with the traditional integral ordinary track: better terrain adaptability, distribution of vehicle weight to reduce pressure on the ground, and reduction of material usage. It enhances the machine's passability and stability on complex, soft tidal flat terrain.

[0021] 5. The harvester head of the present invention adopts a combination of multi-stage roller brush and vibrating screen plate, and is equipped with an inclined filter conveyor belt, which realizes efficient and low-damage harvesting and mud-sand separation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention from a rear view. Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a right view of the overall structure of the present invention; Figure 5 This is a left view of the overall structure of the present invention; Figure 6 This is a front view of the overall structure of the present invention; Figure 7 This is a rear view of the overall structure of the present invention; Figure 8 This is a schematic diagram of the vertical lifting mechanism in this invention; Figure 9 This is a schematic diagram of the harvester head structure in this invention; Figure 10 This is a schematic diagram of the harvester head chassis of the present invention; The components in the diagram are labeled as follows: 1. Vehicle body; 101. Tracked walking device; 102. Fuel tank; 103. Engine; 104. Cab; 105. Electronic control device; 106. Lateral conveyor belt; 107. Transfer conveyor belt; 108. Conveyor belt support; 109. Motor; 2. Harvester head; 201. Top truss; 202. Hydraulic telescopic boom; 203. Telescopic boom; 204. Filter conveyor belt; 205. Driven shaft; 206. Second gearbox; 207. Main... 208. Driven shaft; 209. First gearbox; 210. Gearbox; 211. First roller brush; 212. Second roller brush; 213. Feed roller; 214. Vibrating screen plate; 215. Guide plate; 216. Soil-breaking shovel; 3. Vertical lifting mechanism; 301. Cylinder; 302. Scissor lift frame; 303. Lifting platform; 304. Folding plate; 4. Seedling device; 401. Seedling machine frame; 402. Seedling trough; 403. Air blow pipe; 404. Seedling motor; 405. Air pump. Detailed Implementation

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings. The advantages and features of the present invention will become clearer with the description. However, it should be understood that the embodiments are merely exemplary and do not constitute a limitation on the scope of the present invention.

[0024] It should be noted that the terms "upper," "lower," "front," "rear," etc., in the claims and description of this application indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and should not be construed as meaning that the device or component referred to must have a specific orientation, or be constructed or operated in a specific orientation.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Please see Figures 1 to 10 The present invention provides an automatic harvesting and seeding machine for shellfish in tidal flats, comprising a vehicle body 1, a harvester head 2, a vertical lifting mechanism 3, and a seeding device 4.

[0027] like Figure 1 As shown, the vehicle body 1 adopts a metal frame structure with a skin, and a tracked walking device 101 is installed at its bottom. This tracked walking device 101 is preferably a segmented articulated design, divided into 2 to 4 segments connected by articulation points. Compared with traditional integral tracks, it has the following advantages: better terrain adaptability, distributed vehicle weight to reduce pressure on the ground, and reduced material usage. A fuel tank 102 and an engine 103 are arranged in the middle of the vehicle body 1. The engine 103 serves as the power source for the entire machine, transmitting power to the tracked walking device 101 and the first gearbox 208 located inside the harvester head 2 via a belt drive system. A driver's cab 104 is located at the front of the vehicle body 1, which integrates an electronic control device 105 for controlling the machine's movement, harvesting, lifting, and seeding actions. At the front of the vehicle body 1, behind the harvester head 2, a transverse conveyor belt 106 is installed to receive shellfish output from the harvester head 2. The end of the transverse conveyor belt 106 is connected to a longitudinal and upwardly inclined transfer conveyor belt 107, which is mounted by a bracket 108 and driven by a motor 109 at the top. This conveyor belt can lift and transport shellfish to the lifting platform 303 of the vertical lifting mechanism 3 at the rear of the vehicle body.

[0028] like Figure 1 and Figure 9As shown, the harvester head 2 is hinged to the front of the vehicle body 1 via a top truss 201. The front end of the top truss 201 is connected to the telescopic boom 203 at the front of the vehicle body via a hydraulic telescopic arm 202. By adjusting the length of the hydraulic telescopic arm 202, the soil penetration depth and ground clearance of the harvester head 2 can be controlled to adapt to different tidal flat conditions and shellfish burial depths. Several soil-breaking shovels 215 are installed below the front of the top truss 201 to loosen the tidal flat soil. Behind the soil-breaking shovels 215 is a feeding roller 212, which is composed of multiple clusters of stainless steel bristles. During rotation, it pushes the loosened mud and sand mixed with shellfish backward. Behind the feeding roller 212, a first roller brush 210 and a second roller brush 211 are arranged in sequence. They are also composed of clusters of stainless steel bristles and are responsible for further brushing up and conveying the mixture of shellfish and mud and sand backward. The first roller brush 210 and the second roller brush 211 are driven by the driven shaft 205 through gearboxes 209 on both sides. The driven shaft 205 is powered by the driving shaft 207, which is connected to the second gearbox 206. The driving shaft 207 is connected to the first gearbox 208 driven by the engine 103. A vibrating screen plate 213 is installed below the two gearboxes 209, where most of the mud and sand are initially screened out. The shellfish and a small amount of mud and sand are continued to be conveyed backward by the roller brushes and fall onto the inclined filter conveyor belt 204. The filter conveyor belt 204 further filters out fine sand during the upward conveying process. The filtered clean shellfish are finally discharged from the top of the filter conveyor belt 204 and fall onto the transverse conveyor belt 106 of the vehicle body 1. Below the vibrating screen plate 213 and the filter conveyor belt 204, two guide plates 214 are symmetrically installed. They guide the screened mud and sand and small-sized shellfish larvae to the inside or outside of the machine, effectively preventing the larvae from being crushed by the rear track. A vibration motor is installed in the gearbox 209, which drives the output shaft of the gearbox to rotate. The output shaft drives the eccentric wheel at its end to rotate. When the eccentric wheel rotates, it drives the vibrating screen plate 213 to swing back and forth.

[0029] like Figure 1 and Figure 8 As shown, the vertical lifting mechanism 3 is installed in the middle of the vehicle body 1. It includes a cylinder 301 fixed to the chassis of the vehicle body, and the piston rod of the cylinder 301 is connected to a scissor lift frame 302. A lifting platform 303 is fixed to the top of the scissor lift frame 302. When the transfer conveyor belt 107 transports the harvested shellfish to the lifting platform 303, the cylinder 301 is activated by the electronic control device 105, which pushes the scissor lift frame 302 to extend, raising the fully loaded lifting platform 303 to a suitable height. A folding plate 304 is hinged to the side of the lifting platform 303. When unloading is required, the folding plate 304 can be opened as a sliding plate, which is safe and labor-saving.

[0030] like Figure 1 and Figure 2As shown, the seeding device 4 is installed at the rear of the vehicle body 1. It includes a seeding frame 401 fixed to the vehicle body, with a seedling trough 402 for holding shellfish seedlings mounted on the top of the frame. The bottom of the seedling trough 402 has 1 to 8 perforated seeding holes, each connected to an air-blowing pipe 403. A seeding motor 404 is mounted on the side of the frame 401, its output shaft connected to a horizontally arranged rotating shaft. This rotating shaft passes sequentially through the middle of all the air-blowing pipes 403, and a rotating blade is installed corresponding to the position inside each air-blowing pipe 403. An air pump 405 is also installed at the rear of the vehicle body, its outlet connected to the bottom of all the air-blowing pipes 403 via a pipe. During operation, the shellfish seedlings in the seedling trough 402 fall into the air-blowing pipes 403 through the seeding holes. The seeding motor 404 drives the rotating shaft and the rotating blade to rotate at a uniform speed, evenly feeding the seedlings into the lower outlet of the air-blowing pipes 403. Meanwhile, the air pump 405 continuously blows air into the bottom of the air blowing pipe 403, blowing the falling seedlings out with a certain initial velocity and evenly scattering them onto the mudflats behind it. The rotation speed of the seedling sowing motor 404 can be adjusted by the electronic control device 105 to control the seedling falling frequency, and the pressure of the air pump 405 can be adjusted to control the seedling sowing distance, thereby achieving precise seedling sowing of different densities and ranges.

[0031] The electronic control device 105 serves as the control center, and is electrically connected to the motor 109 driving the conveyor belt, the seedling motor 404, the air pump 405, the solenoid valve controlling the lifting cylinder 301, and the starting and speed regulation mechanisms of the engine 103. The driver can centrally control the movement, harvester head lifting, harvesting operations, lifting platform operation, and seedling planting operations from within the cab 104 via an operating panel or handle. The system is highly automated and easy to operate.

[0032] The working principle of this invention is as follows: During the harvesting cycle, as the machine travels on the mudflats, the soil-breaking shovel 215 of the harvester head 2 penetrates 10-15cm into the soil, scooping up the shellfish along with the mud and sand. The material is then conveyed backward by the feed roller 212, the first roller brush 210, and the second roller brush 211. After multiple screenings and cleanings by the vibrating screen plate 213 and the filter conveyor belt 204, clean shellfish are obtained. The clean shellfish are then lifted and transported to the lifting platform 303 for temporary storage via the transverse conveyor belt 106 and the transfer conveyor belt 107. When the amount of shellfish on the lifting platform 303 reaches a certain level, the vehicle can unload the shellfish using the vertical lifting mechanism 3 without stopping the machine.

[0033] During the seedling sowing cycle, components such as the filter conveyor belt 204 and guide plate 214 can be removed, and the soil-breaking shovel 215 can be controlled to penetrate 5-10cm into the soil. Shellfish seedlings are then loaded into the seedling trough 402, and the seedlings are evenly and accurately sown onto the mudflat area after soil breaking through through the seedling sowing device 4 while the machine is moving.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An automatic harvesting and seeding machine for shellfish in tidal flats, comprising a vehicle body (1), characterized in that: The front of the vehicle body (1) is equipped with a harvester head (2), the middle of the vehicle body (1) is equipped with a vertical lifting mechanism (3), and the rear of the vehicle body (1) is equipped with a seedling sowing device (4). The vehicle body (1) is equipped with a tracked walking device (101). The middle part of the vehicle body (1) is provided with an oil tank (102) and an engine (103). The engine (103) is connected to the tracked walking device (101) and the harvester head power device via belt drive. The vehicle body (1) is integrated with a cab (104). The cab (104) is provided with an electronic control device (105). The front part of the vehicle body (1) is also provided with a transverse conveyor belt (106). The end of the transverse conveyor belt (106) is equipped with a longitudinal and upwardly inclined transfer conveyor belt (107). The transfer conveyor belt (107) is installed on the vehicle body (1) through a conveyor belt bracket (108). The top of the conveyor belt bracket (108) is also equipped with a motor (109) to drive the transfer conveyor belt (107). The vertical lifting mechanism (3) includes a cylinder (301) mounted on the chassis of the vehicle body (1), the output end of the cylinder (301) is connected to a scissor lift frame (302), the top of the scissor lift frame (302) is connected to a lifting platform (303), and the side of the lifting platform (303) is hinged with a folding plate (304). The seedling sowing device (4) includes a seedling frame (401) installed at the rear of the vehicle body (1). A seedling trough (402) is installed on the top of the seedling frame (401). The bottom of the seedling trough (402) is provided with a hollowed-out seedling hole. The number of seedling holes is 1-8. An air blowing pipe (403) is connected to the bottom of each seedling hole. A seedling motor (404) is fixedly installed on the side of the frame (401). The output end of the seedling motor (404) is connected to a horizontally arranged rotary shaft. A rotating blade is provided on the rotary shaft. The rotary shaft passes through the middle of the plurality of air blowing pipes (403). An air pump (405) is also installed at the rear of the vehicle body (1). The air outlet of the air pump (405) is connected to the bottom of the plurality of air blowing pipes (403) through a pipe.

2. The automatic harvesting and seeding machine for shellfish in tidal flats according to claim 1, characterized in that: The harvester head (2) includes a top truss (201), the rear end of which is hinged to the vehicle body (1), and the front end of which is hinged to a hydraulic telescopic arm (202). The other end of the hydraulic telescopic arm (202) is connected to a telescopic arm (203) located at the front of the vehicle body (1). A filter conveyor belt (204) that tilts backward and upward is suspended below the middle of the top truss (201). A driven shaft (205) is connected through the front of the top truss (201). The driven shaft (205) is connected to the driving shaft (207) through a second gearbox (206). The driving shaft (207) is connected to a first gearbox (208). The first gearbox (208) is connected to the output end of the engine (103) through a transmission mechanism. Gearboxes (209) are connected to both sides of the driven shaft (205). A second gearbox (209) is provided between the two gearboxes (209). A first roller brush (210) and a second roller brush (211) are provided. The driven shaft (205) provides power to the first roller brush (210) and the second roller brush (211) through gear transmission. A feed roller (212) is provided in front of the first roller brush (210). The driven shaft (205) provides power to the feed roller (212) through gear transmission. A vibrating screen plate (213) is installed below the two gearboxes (209). Below the feed roller (202) and the filter conveyor belt (204), there are two guide plates (214), which are detachably and symmetrically installed on the gearbox (209) on both sides and the auxiliary frame of the top truss (201). In front of the feed roller (212), there are several soil breaking shovels (215), and the number of soil breaking shovels (215) is 4-8. The soil breaking shovels (215) are fixedly connected to the auxiliary frame of the top truss (201).

3. The automatic harvesting and seeding machine for shellfish in tidal flats according to claim 2, characterized in that: The tracked walking device (101) is an articulated track, and the articulated track is divided into 2-4 segments.

4. The automatic harvesting and seeding machine for shellfish in tidal flats according to claim 2, characterized in that: The electrical control device (105) is electrically connected to the motor (109), the seedling motor (404), the air pump (405), and the cylinder (301).

5. The automatic harvesting and seeding machine for shellfish in tidal flats according to claim 2, characterized in that: The first roller brush (210), the second roller brush (211), and the feed roller (212) are all composed of multiple continuous bristle clusters, which are made of stainless steel wire.

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