River crab feeding control device

Abstract

The invention relates to the technical field of river crab breeding, and particularly provides a river crab feeding control device. Comprising a feeding ship with an automatic traveling function and a feed box suspended above the feeding ship, a valve capable of being automatically opened and closed can be assembled at the position of a discharge port of the feed box, and a rotatable feeding pipe is assembled in the middle of the feeding ship in a penetrating mode; and at least two layers of feeding plates of which the middle parts are through and the outer diameters are gradually reduced are assembled at the right upper end of the feeding pipe. The feeding pipe and the feeding tray provided by the invention are combined with discrete feeding and centralized feeding modes, so that enough food is supplied to river crabs in a large-density area, the situation that the river crabs die due to mutual attack caused by food grabbing is avoided, the situation that the river crabs have food in a small-density area is ensured, meanwhile, large-range gathering of the river crabs can be prevented, and the river crabs are prevented from being caught by the river crabs. Death caused by oxygen deficit is avoided, the survival probability of the river crabs is guaranteed to the maximum extent, meanwhile, an underwater feeding mode is designed, and waste caused by the fact that feed is thrown to river banks or aquatic plants is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of river crab breeding, and specifically proposes a river crab feeding control device. Background Art

[0002] In order to ensure the product quality of river crabs during the breeding process, in addition to the natural feed in the river pond, they also need to be fed with artificial feed. At different growth stages of river crabs, the size of the feed they eat is different. The feed eaten by young crabs is mainly powdered, and the feed eaten by adult crabs is mainly granular. At present, the traditional artificial feeding method has gradually been replaced by intelligent feeding. The general feeding methods include centralized feeding and discrete feeding. Since river crabs are affected by the internal environment of the river pond, some river crabs will gather in a certain area. Therefore, the centralized feeding method is usually used in river crab gathering areas, and discrete feeding is used in river crab non-gathering areas, that is, areas with low river crab density. However, the current single application method will result in some river crabs having no food, or the river crab density in densely populated areas will be higher. In short, it has a huge impact on the survival rate of river crabs.

[0003] At present, the angle range of the spraying of feeding equipment is certain, so the feed coverage range is small when feeding. When the area of ​​the river pond to be operated is wider, the feeding time required will be longer, which affects the feeding efficiency. At the same time, when the feeding equipment moves to the edge of the river pond for feeding, due to its wider feeding range, part of the feed will fall on the river bank or aquatic plants, resulting in feed waste. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a crab feeding control device for solving the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a river crab feeding control device, comprising a feeding boat with an automatic driving function and a feed box suspended above the feeding boat, the feed box can be equipped with a valve that can be opened and closed automatically at the feeding port position, a rotatable feeding pipe is installed through the middle of the feeding boat, and the upper end of the feeding pipe is equipped with at least two layers of feeding trays that penetrate the middle and have gradually decreasing outer diameters, and a plurality of feeding troughs for feeding are arranged in a circular array inside each layer of the feeding tray, and the inner ring of each layer of the feeding tray is arranged in a stepped shape, and the inner diameter gradually decreases from top to bottom, and the feeding port of the feed box is located directly above the feeding tray, and the value of its inner diameter is located between the values ​​of the stepped inner diameters of the feeding tray on the top layer.

[0006] Preferably, the feeding boat is a catamaran, the middle part of which is suspended above the water surface, the single-layer feeding tray is assembled at the lower end of the feeding pipe, a groove with a shape matching the feeding tray is opened at the bottom of the feeding boat, the feeding tray is located inside the groove, and a power assembly is arranged inside the feeding boat for driving the feeding trays at the top and bottom of the feeding pipe to rotate respectively.

[0007] Preferably, the power assembly includes a dual-axis variable position motor fixedly mounted inside the feeding boat, and a gear 1 is fixedly mounted on the output shaft of the dual-axis variable position motor. The feeding pipe is divided into two sections and the connecting position is fixed by a rotating joint. Two gears 2 meshing with gear 1 are sleeved on the surface of the feeding pipe and are respectively located at two sections of the feeding pipe. The thickness of gear 2 is greater than that of gear 1, and the feeding pipe can move up and down.

[0008] Preferably, a funnel-shaped material guide platform is fixedly installed inverted above the step position on the inner side of the feeding tray, the top diameter of each layer of the material guide platform gradually decreases from top to bottom, and an inlet is opened at the top of the inner side of each material trough near the center of the feeding tray, and a plurality of material guide plates in a circular array are fixedly installed on the surface of the material guide platform, and adjacent material guide plates are opposite to the edge positions on both sides of the material trough.

[0009] Preferably, an hourglass-shaped leak-proof platform is fixedly installed just above the feeding tray located at the top layer, the top of the material guide plate is located at the waist of the material guide platform, and the inner waist of the leak-proof platform is located just above the top of the material guide plate.

[0010] Preferably, the top section of the leak-proof platform is a straight tube structure and a sealed bearing is fixedly sleeved on its surface, a vertical discharge pipe is arranged at the discharge port of the feed box, the bearing is assembled inside the discharge pipe, and the feeding boat is equipped with waterproof and automatically retractable electric rods around it for driving the feed box to move vertically.

[0011] Preferably, a flexible gasket is provided on one side of the feeding tray of the feeding ship sheet body close to the lower end of the feeding pipe.

[0012] Preferably, each of the feed troughs has at least two outlets for discharging feed, and a feed shifting assembly is installed inside the feed trough to prevent feed from being blocked at the intersection of the discharge channel opening.

[0013] Preferably, the material shifting assembly includes a material shifting piece which is tightly attached to the inside of the material trough and has a protrusion on the top. The inner wall of the material trough is provided with a slide groove whose path direction is the same as the radial direction of the feeding disk. The protrusion of the material shifting piece is stuck in the slide groove. A compression spring is installed inside the slide groove. The compression spring presses the protrusion against the side of the inner wall of the slide groove close to the center of the feeding disk.

[0014] Preferably, the cross-section of the slide groove is in the shape of a circle and the top passes through the feeding tray. An internal thread groove is provided on both sides of the slide groove. A retractable screw rod without thread in the middle passes through the inner side of the compression spring. The screw rod passes through the protrusion of the material-shifting piece, and its two ends can be rotatably fixed inside the internal thread groove. A sealing cover whose surface is flush with the surface of the feeding tray is installed inside the slide groove.

[0015] 1. The above technical solution has the following advantages or beneficial effects: The present invention provides a crab feeding control device, which is provided with a feeding boat, a feeding pipe, a feeding tray and a feeding sheet. Through centrifugal force, a part of the feed can be sprayed out from the inside of the feeding trough, and the other part can fall out from the inside of the feeding pipe. By combining the centralized feeding and discrete feeding methods, it is ensured that the crabs in the densely populated area have sufficient food supply, and the crabs are prevented from attacking each other for food and causing death, and the areas with low crab density are ensured to have food. At the same time, it can also prevent the crabs from gathering in a large area, avoid death caused by lack of oxygen, and maximize the survival probability of the crabs;

[0016] 2. The above technical solution has the following advantages or beneficial effects: The present invention provides a crab feeding control device, in which a feed inlet is provided in the feed trough to increase the area of ​​the feed entering the feed trough, and the adjacent guide plates are directly opposite to the edge positions on both sides of the feed trough. When the feed falls directly above the surface of the guide table, it slides between the adjacent guide plates due to its own gravity. The integrity of the feed is ensured by the cooperation of the leak-proof table and the guide plates, and the feed is separated by the guide plates, so that the amount of feed at each feed inlet is uniform, avoiding the blockage and accumulation of feed;

[0017] 3. The above technical solution has the following advantages or beneficial effects: The present invention provides a crab feeding control device, which uses an electric rod and a dual-axis variable position motor to make the feeding pipe move longitudinally, so that the feeding tray below moves downward, thereby realizing underwater feeding. The sheet under the feeding boat will block the feed, thereby reducing the waste of feed as much as possible;

[0018] 4. The above technical solution has the following advantages or beneficial effects: The present invention provides a crab feeding control device, in which a movable feed plate is arranged inside a feed trough, and the feed plate is driven to move under the action of centrifugal force to prevent feed from accumulating at the junction of the feed trough, thereby achieving dredging of the feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings, which are not drawn to scale, with emphasis on illustrating the subject matter of the present invention.

[0020] Figure 1The present invention is a schematic diagram of the three-dimensional structure of a crab feeding control device provided by the present invention.

[0021] Figure 2 It is a schematic diagram of the split structure at the leak-proof platform position.

[0022] Figure 3 This is a schematic diagram of the partial structure on the inner side of the feeding tray.

[0023] Figure 4 It is a schematic diagram of the installation structure of the power component.

[0024] Figure 5 It is a schematic diagram of the structure in the underwater feeding state.

[0025] Figure 6 It is a schematic diagram of the cross-sectional structure of the feeding tray.

[0026] Figure 7 It is a partial cross-sectional structural schematic diagram of the feeding tray and feeding pipe installation structure.

[0027] Figure 8 It is a schematic diagram of the internal structure of the chute of the material transfer assembly.

[0028] Fig. 9 It is a schematic diagram of the disassembled structure of the material shifting component.

[0029] Fig.10 It is a schematic diagram of the overall structure of the pick.

[0030] In the figure: 1. feeding boat; 2. feed box; 3. feeding pipe; 4. feeding tray; 5. feeding chute; 6. groove; 7. double-axis variable position motor; 8. gear one; 9. gear two; 10. material guide table; 11. feeding port; 12. material guide plate; 13. leak-proof table; 14. bearing; 15. discharging pipe; 16. electric rod; 17. material shifting piece; 18. slide groove; 19. compression spring; 20. internal thread groove; 21. screw rod; 22. sealing cover; 23. flexible gasket. DETAILED DESCRIPTION

[0031] 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.

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figure 1-2As shown, a feeding control device for river crabs comprises a feeding boat 1 with an automatic driving function and a feed box 2 suspended above the feeding boat 1. The feed box 2 itself has a waterproof function to prevent the internal feed from being wet and sticky. The discharge port of the feed box 2 can be equipped with a valve that can open and close automatically, and can also be used in conjunction with a vibrator. Its main purpose is to ensure that the feed falls better. A rotatable feeding pipe 3 is installed through the middle of the feeding boat 1. The top of the feeding pipe 3 extends out but the bottom is suspended on the river surface. The upper end of the feeding pipe 3 is equipped with at least two layers of the middle part penetrating and the outer diameter is from top to bottom. The feeding tray 4 gradually decreases below. In the present application, the feeding tray 4 is designed to be only two layers, but the number of layers is not limited when it is actually put into use. It should be noted that the number of layers of the feeding tray 4 should not be too high and the mass should not be too large to avoid affecting the buoyancy of the feeding ship 1. The feeding tray 4 with a larger outer diameter can cover a wider range. The feeding trays 4 of different diameters are used in combination to cover a large area of ​​the feeding range. A plurality of feeding troughs 5 for feeding are arranged in an annular array in each layer of the feeding tray 4. As the feeding tray 4 rotates, the feed can be sprayed out from the inside of the feeding trough 5, such as Figure 3 , Figure 4 and Figure 6-7 As shown, the inner ring of each layer of the feeding tray 4 is arranged in a stepped shape, and the inner diameter gradually decreases from top to bottom, with the horizontal feeding trough 5 as the dividing line, and the inner diameter above the feeding trough 5 is larger than the inner diameter below the feeding trough 5, mainly to ensure that during the falling process, a part of the feed will fall from the inside of the feeding pipe 3 for centralized feeding, and the other part will fall on the step, and move to the inside of the feeding trough 5 with the action of the centrifugal force of the feeding tray 4, thereby realizing discrete feeding, and the discharge port of the feed box 2 is located directly above the feeding tray 4 to ensure accurate feeding, and the value of its inner diameter is between the stepped inner diameter values ​​of the top feeding tray 4, to ensure that a part of the feed falls on the step, and through the combination of centralized and discrete feeding methods, it is ensured that both the high and low crab density areas can get reasonable feed distribution.

[0034] The feeding ship 1 is a catamaran, the middle of which is suspended above the water surface, and the two sides of the sheet are located underwater. A single-layer feeding tray 4 is installed at the lower end of the feeding pipe 3. Figure 4As shown, in the present application, there are two feeding methods, above water and underwater. Since river crabs are usually raised in rivers and ponds in practice, the above water feeding method will cause feed to fall onto the river bank or aquatic plants during discrete feeding, resulting in feed waste. When feeding the underwater feeding tray 4, the feed will hit the sheet to avoid falling onto the river bank or aquatic plants and causing waste. A groove 6 with a shape matching that of the feeding tray 4 is provided at the bottom of the feeding boat 1. The feeding tray 4 is located inside the groove 6. A power assembly is provided inside the feeding boat 1 for driving the feeding tray 4 at the top and bottom of the feeding pipe 3 to rotate respectively. It should be noted that the "underwater" in the present application does not really mean being below the water surface, but is used to distinguish it from the above water feeding method at the top of the feeding pipe 3.

[0035] The power assembly includes a dual-axis variable position motor 7 fixedly mounted inside the feeding ship 1. There are many single-axis driving modes of the dual-axis variable position motor 7, which are realized by electronic control or clutch, etc. This is a relatively mature prior art, so it will not be described in detail in this application. Figure 4 As shown, a gear 1 8 is fixedly mounted on each output shaft of the dual-axis variable position motor 7, the feeding pipe 3 is divided into two sections and the connection position is fixed by a rotating joint, thereby ensuring that the two ends of the feeding pipe 3 can rotate separately, and two gears 2 9 meshing with gear 1 8 are sleeved on the surface of the feeding pipe 3, and are respectively located at two sections of the feeding pipe 3, and the thickness of gear 2 9 is greater than that of gear 1 8, and the feeding pipe 3 can move up and down. Since the entire feeding pipe 3 will drive the movement of gear 2 9 during the downward movement, it is necessary to ensure that the moving distance is less than the difference in thickness between gear 1 8 and gear 2 9, and the rotation speed of the feeding tray 4 is determined by the dual-axis variable position motor 7.

[0036] A funnel-shaped material guide table 10 is fixedly installed upside down just above the step position inside the feeding tray 4. Figure 4 As shown, the top diameter of each layer of the guide platform 10 gradually decreases from top to bottom, ensuring that the feed can accurately fall on the steps of the feeding tray 4 during the falling process. A feed inlet 11 is opened at the top of the inner side of each feed trough 5 near the center of the feeding tray 4 to increase the area of ​​the feed entering the feed trough 5 and ensure that the feed can enter the inside of the feed trough 5 for centrifugal movement. A plurality of guide plates 12 in a circular array are fixedly installed on the surface of the guide platform 10, and adjacent guide plates 12 are directly opposite to the edge positions on both sides of the feed trough 5. When the feed falls on the surface of the guide platform 10, it will be separated by the guide plates 12, so that the amount of feed at each feed inlet 11 is uniform, avoiding blockage and accumulation of feed, and further realizing accurate feeding.

[0037] An hourglass-shaped leak-proof platform 13 is fixedly installed just above the feeding tray 4 at the top position. Figure 2As shown in the figure, the top of the guide plate 12 is located at the waist of the guide platform 10, and the inner waist of the leak-proof platform 13 is located just above the top of the guide plate 12. When the feed falls just above the guide platform 10, it will first pass through the leak-proof platform 13 to be concentrated just above the guide platform 10, and then slide down to between the adjacent guide plates 12 with its own gravity. If the feed falls directly and hits the guide plate 12, it will be scattered and broken. Therefore, the integrity of the feed is ensured by the cooperation of the leak-proof platform 13 and the guide plate 12, thereby avoiding the rapid dissolution of the feed when it falls into the water and reducing waste. The top section of the leak-proof platform 13 is a straight tube structure and its interior A sealed bearing 14 is fixedly sleeved, a vertical discharge pipe 15 is set at the discharge port of the feed box 2, and the discharge pipe 15 is assembled inside the bearing 14. The feeding boat 1 is equipped with waterproof and automatically retractable electric rods 16 around it. In the present application, the electric rod 16 is fixed by a hook-shaped mounting rod. Since the sizes of the feed boxes 2 are different, the shapes of the rods used for installation are also different. Therefore, it is only necessary to ensure that the electric rod 16 can drive the feed box 2 to move in the vertical direction. The feed box 2 is rigidly connected to the feeding pipe 3 below through the leak-proof platform 13 and the bearing 14, thereby indirectly realizing the longitudinal movement of the feeding pipe 3.

[0038] like Figure 1-3 and Figure 5 As shown, a flexible gasket 23 is provided on one side of the feeding tray 4 near the lower end of the feeding pipe 3 of the feeding boat 1. When the feed is ejected from the outlet of the feeding tray 4, huge kinetic energy is generated. Therefore, when the feed hits the sheet, it will be crushed. The crushed feed falling into the water will accelerate its dissolution, thereby causing waste of the feed. The flexible gasket 23 can absorb part of the kinetic energy of the feed and reduce the impact damage to the feed.

[0039] Each material channel 5 has at least two outlets for discharging materials, such as Figure 6 As shown, in the present application, the outlet of the feed trough 5 is provided with three, and the number mainly depends on the size of the feeding tray 4. More outlets can improve the coverage rate of feeding and feeding efficiency. Figure 4 and Figure 7 As shown, the interior of the feed chute 5 is equipped with a material shifting assembly. Since the space at the outlet of the feed channel is large, it is easy to get blocked at the intersection when the feed is diverted, affecting the effect of discrete feeding. Therefore, the material shifting assembly is used to prevent the feed from getting blocked at the intersection of the outlet of the feed channel.

[0040] like Figure 8-10As shown, the material-digging assembly includes a material-digging piece 17 which is tightly attached to the inside of the feed chute 5 and has a protrusion on the top. The four sides of the material-digging piece 17 are all set as inclined surfaces to prevent the feed from hitting the edge of the material-digging piece 17 and causing blockage. The inner wall of the feed chute 5 is provided with a chute 18 whose path direction is the same as the radial direction of the feeding tray 4. The protrusion of the material-digging piece 17 is stuck in the inside of the chute 18. When the centrifugal force of the feeding tray 4 reaches a certain level, the material-digging piece 17 will also move along the path of the chute 18. A compression spring 19 is installed inside the chute 18 to ensure the initial position of the material-digging piece 17 The compression spring 19 presses the protrusion against the inner wall of the chute 18 near the center of the feeding tray 4. It should be noted in particular in the present application that the material-pickup piece 17 completely covers the chute 18 during movement to prevent the feed from being stuck inside the chute 18. The working principle of the material-pickup piece 17 is that when the feed chute 5 is blocked, the rotation speed of the feeding tray 4 is controlled to increase the centrifugal force generated, so that the material-pickup piece 17 moves, and the friction force drives the feed in close contact with it to move, thereby causing the feed to be misaligned, ensuring that the feed can be sprayed out normally.

[0041] The cross section of the chute 18 is T-shaped and the top passes through the feeding tray 4. Fig. 9 As shown, an internal thread groove 20 is provided on both sides of the slide groove 18, and a retractable screw rod 21 without thread in the middle part passes through the inner side of the compression spring 19, and the compression spring 19 is limited by the screw rod 21 to prevent it from bending, and the screw rod 21 passes through the protrusion of the material-pickup piece 17 to ensure that the protrusion can only slide along the screw rod 21, and its two ends can be rotatably fixed in the internal thread groove 20. When installing the material-pickup piece 17, it can be operated from the inside of the material-passing chute 5, and the protrusion is passed through the slide groove 18. The retractable screw rod 21 is placed in the inside of the slide groove 18 from top to bottom, and passes through the compression spring 19 and the protrusion in turn, and is stretched and rotated to fix its two ends in the internal thread groove 20. A sealing cover 22 whose surface is flush with the surface of the feeding tray 4 is installed in the slide groove 18, and it is installed by friction. Notches can be set on the surface of the sealing cover 22 to facilitate the disassembly of the sealing cover 22.

[0042] The present invention provides a crab feeding control device, which is provided with a feeding pipe 3, a single-layer and double-layer feeding tray 4 and a power component. When the feed box 2 is unloading, the feed will first fall onto the guide platform 10, and then be concentrated to the top of the guide platform 10 through the leak-proof platform 13. The feed then slides between adjacent guide plates 12 under its own gravity. The centrifugal force generated when the feeding tray 4 rotates makes the feed spray out from the inside of the feed trough 5. If blockage occurs, the rotation speed of the feeding tray 4 is controlled to increase the centrifugal force generated, so that the prying piece 17 moves, and the friction force drives the feed closely attached to it to move, so that the feed is misaligned, ensuring that the feed can be sprayed out normally. When underwater feeding is required, it is only necessary to drive the feed box 2 to move downward through the electric rod 16, thereby indirectly moving the feeding pipe 3 downward. The feeding principle is as described above. By combining centralized feeding and discrete feeding, it is ensured that there is enough food supply for river crabs in densely populated areas, avoiding the death of river crabs due to mutual attacks for food. At the same time, it is ensured that there is food in areas with low river crab density, preventing river crabs from gathering on a large scale and causing death due to lack of oxygen, thereby maximizing the survival probability of river crabs. In addition, the two feeding methods of water and underwater feeding are combined to ensure a feeding range with a sufficiently high coverage rate. At the same time, the sheet on the feeding boat 1 is used to avoid waste caused by feed falling onto the river bank.

[0043] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0045] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A crab feeding control device, comprising a feeding boat (1) with an automatic driving function and a feed box (2) suspended above the feeding boat (1), wherein a valve capable of automatically opening and closing can be installed at the feeding outlet of the feed box (2), characterized in that: A rotatable feeding pipe (3) is installed through the middle of the feeding ship (1), and at least two layers of feeding trays (4) with gradually decreasing outer diameters and passing through the middle are installed just above the feeding tube (3). A plurality of feeding troughs (5) for feeding are arranged in an annular array inside each layer of the feeding tray (4), and the inner ring of each layer of the feeding tray (4) is arranged in a stepped shape, and the inner diameter gradually decreases from top to bottom; The feed outlet of the feed box (2) is located directly above the feed tray (4), and the value of its inner diameter is between the values ​​of the stepped inner diameters of the top feed tray (4).

2. A crab feeding control device according to claim 1, characterized in that: The feeding boat (1) is a catamaran, the middle part of which is suspended above the water surface. A single-layer feeding tray (4) is installed at the lower end of the feeding pipe (3). A groove (6) having a shape matching that of the feeding tray (4) is provided at the bottom of the feeding boat (1). The feeding tray (4) is located inside the groove (6). A power assembly is provided inside the feeding boat (1) for driving the feeding trays (4) at the top and bottom of the feeding pipe (3) to rotate.

3. A crab feeding control device according to claim 2, characterized in that: The power assembly comprises a dual-axis variable position motor (7) fixedly mounted inside the feeding ship (1), and a gear 1 (8) is fixedly mounted on the output shaft of the dual-axis variable position motor (7). The feeding pipe (3) is divided into two sections and the connection position is fixed by a rotating joint. The surface of the feeding pipe (3) is sleeved with two gears 2 (9) meshing with the gear 1 (8), and the gears 2 (9) are respectively located at two sections of the feeding pipe (3). The thickness of the gear 2 (9) is greater than the thickness of the gear 1 (8), and the feeding pipe (3) can move up and down.

4. A crab feeding control device according to claim 3, characterized in that: A funnel-shaped material guide platform (10) is fixedly installed upside down just above the step position on the inner side of the feeding tray (4), and the top diameter of each layer of the material guide platform (10) gradually decreases from top to bottom. A material inlet (11) is provided at the inner top of each material trough (5) near the center of the feeding tray (4). A plurality of material guide plates (12) in a circular array are fixedly installed on the surface of the material guide platform (10), and adjacent material guide plates (12) are directly opposite to the edge positions on both sides of the material trough (5).

5. A crab feeding control device according to claim 4, characterized in that: An hourglass-shaped leak-proof platform (13) is fixedly installed just above the feeding tray (4) located at the upper end of the feeding pipe (3); the top of the material guide plate (12) is located at the waist of the material guide platform (10); and the inner waist of the leak-proof platform (13) is located just above the top of the material guide plate (12).

6. A crab feeding control device according to claim 5, characterized in that: The top section of the leak-proof platform (13) is a straight tube structure and a sealed bearing (14) is fixedly sleeved inside the tube. The discharge port of the feed box (2) is provided with a vertical discharge pipe (15), and the discharge pipe (15) is mounted inside the bearing (14). The feeding boat (1) is equipped with waterproof and automatically retractable electric rods (16) around its periphery for driving the feed box (2) to move in a vertical direction.

7. A crab feeding control device according to claim 2, characterized in that: A flexible gasket (23) is provided on one side of the feeding tray (4) of the feeding ship (1) close to the lower end of the feeding pipe (3).

8. A crab feeding control device according to claim 2, characterized in that: Each of the feed troughs (5) has at least two outlets for discharging feed, and a feed shifting assembly is installed inside the feed trough (5) to prevent feed from being blocked at the intersection of the discharge channel opening.

9. A crab feeding control device according to claim 8, characterized in that: The material shifting assembly comprises a material shifting piece (17) which is tightly attached to the inside of the material trough (5) and has a protrusion on the top. The inner wall of the material trough (5) is provided with a slide groove (18) whose path direction is the same as the radial direction of the feeding tray (4). The protrusion of the material shifting piece (17) is stuck in the inside of the slide groove (18). A compression spring (19) is installed in the inside of the slide groove (18). The compression spring (19) presses the protrusion against the inner wall of the slide groove (18) on the side close to the center of the feeding tray (4).

10. A crab feeding control device according to claim 9, characterized in that: The cross section of the slide groove (18) is T-shaped and the top thereof passes through the feeding tray (4). An internal thread groove (20) is provided on both sides of the slide groove (18). A retractable screw rod (21) without a thread in the middle passes through the inner side of the compression spring (19). The screw rod (21) passes through the protrusion of the material-pickup piece (17) and its two ends are rotatably fixed inside the internal thread groove (20). A sealing cover (22) whose surface is flush with the surface of the feeding tray (4) is installed inside the slide groove (18).

Images