Feed feeding device for crab breeding

Abstract

The invention relates to the technical field of crab breeding equipment, in particular to a feed feeding device for crab breeding, which comprises a feed mixing box, a group of floaters, a top cover, a plurality of storage tanks, a bottom plate and a mounting rack, the feed mixing box is arranged on the bottom plate, the floaters are symmetrically arranged on the bottom plate, the top cover is arranged on the feed mixing box, and the storage tanks are arranged on the mounting rack. The mounting frame is arranged on the bottom plate and connected with the material mixing box, the feeding device further comprises a throwing assembly, a stirring assembly and a moving power assembly, the moving power assembly is arranged between the bottom plate and the mounting frame, the throwing assembly is arranged on the bottom plate, the stirring assembly is arranged in the material mixing box and connected with the throwing assembly, and the moving power assembly is connected with the stirring assembly. The movable power assembly is connected with the throwing assembly, the whole device is high in automation degree, compared with a traditional fixed feed feeding device, the crab feeding range is enlarged, workers do not need to manually mix different kinds of feed, and the input amount of labor force is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of crab breeding equipment, and more specifically to a feed feeding device for crab breeding. Background Art

[0002] Crabs are very popular among consumers because of their delicious meat and rich nutrition. At present, the market demand is mainly met by artificial breeding of crabs, such as large-scale breeding in waters such as Zhejiang, Jiangsu, Shanghai and Anhui. The main breeding in freshwater areas is Chinese mitten crab, and the main breeding in seawater areas is mud crab. In the process of crab breeding, a large amount of feed needs to be fed, so a feed feeding device is indispensable. Existing feed feeding devices mostly adopt a fixed installation method, which is installed and set at a fixed position in the breeding waters to feed feed. Not only is the throwing range limited, but also requires staff to manually mix different types of feed, and regularly row a boat close to the feeding device to supplement the feed, which is very inconvenient. Summary of the invention

[0003] The object of the present invention is to provide a crab breeding feed feeding device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A crab breeding feed feeding device comprises a mixing box, a floater, a top cover, a plurality of storage tanks, a bottom plate and a mounting frame, wherein the mixing box is arranged on the bottom plate, the floaters are in a group and are symmetrically arranged on the bottom plate, the top cover is arranged on the mixing box, a plurality of storage tanks are symmetrically arranged on the top cover, the mounting frame is arranged on the bottom plate and connected to the mixing box, the feeding device further comprises a throwing assembly, a stirring assembly and a mobile power assembly, the mobile power assembly is arranged between the bottom plate and the mounting frame and is used to provide mobile power for the entire device, the throwing assembly is arranged on the bottom plate and is used to throw the feed in the mixing box into the breeding pond, the stirring assembly is arranged in the mixing box and is connected to the throwing assembly, when the throwing assembly is working, the stirring assembly is controlled to work and stir different types of feed, the mobile power assembly is connected to the throwing assembly, and when the throwing assembly is working, the mobile power assembly is controlled to work synchronously.

[0005] A further technical solution of the present application: the throwing assembly includes a feeding structure and a positioning module, the feeding structure is movably arranged on the mixing box, and is used to receive the feed in the mixing box and put it into the breeding pond, the positioning module is arranged between the bottom plate and the mounting frame and is connected to the feeding structure, and is used to control the feeding structure to perform the throwing action.

[0006] A further technical solution of the present application: the feeding structure includes a blocking cover, a throwing box, a throwing window and a resistance hinge rod, the number of the resistance hinge rods is a group and the middle position of a group of resistance hinge rods is hinged to the bottom plate, one end of each of the resistance hinge rods is provided with a throwing box, the throwing box and the mixing box are slidably matched, the mixing box is provided with a drop port matched with the throwing box, each of the throwing boxes is provided with a blocking cover, the blocking cover and the mixing box are slidably matched, a side of the throwing box away from the blocking cover is equidistantly provided with a plurality of throwing windows, the end of the resistance hinge rod away from the throwing box is connected to the positioning module, and the positioning module controls the resistance hinge rod to swing along its hinge when working.

[0007] A further technical solution of the present application is as follows: the positioning module includes a power element, a transverse push arm, a longitudinal push arm, a positioning arm and a slide groove, the power element is arranged on a mounting frame, the transverse push arm is movably arranged on a base plate, the longitudinal push arm is movably arranged on a base plate and connected to the transverse push arm, the transverse push arm and the longitudinal push arm form a T-shaped structure, a driving arm is arranged at the output end of the power element, a through groove that slides with the driving arm is arranged on the transverse push arm, a mounting plate is arranged on the transverse push arm, the number of the positioning arms is the same as the number of the interference hinge rods and are symmetrically arranged on the mounting plate, and a slide groove that slides with the interference hinge rod is formed on the positioning arm.

[0008] The present application has a further technical solution: a resistance reducing member is provided between the interference hinge rod and the slide groove, so as to reduce the friction resistance between the slide groove and the interference hinge rod.

[0009] The present application has a further technical solution: the stirring assembly includes a rotating shaft, a stirring roller, a protective box and a transmission structure, the rotating shafts are in a group and are symmetrically and movably arranged in the mixing box, each of the rotating shafts is sleeved with a stirring roller, the protective box is arranged on the mixing box, the transmission structure is arranged in the protective box and is connected with the rotating shaft, the positioning module also includes an inflatable structure, the inflatable structure is connected to the transmission structure, and the driving arm controls the operation of the inflatable structure to drive the transmission structure to work when moving in the groove.

[0010] The present application has a further technical solution: the transmission structure includes a gear, a rack and a first cylinder, the gear is movably arranged on the mixing box and is coaxially connected to the rotating shaft, the rack is movably arranged in the protective box, the first cylinder is arranged in the protective box and its movable end is connected to the rack, the rack and the gear are meshed, and the first cylinder is connected to the inflatable structure.

[0011] A further technical solution of the present application is: the number of the inflatable structures is a group and they are symmetrically arranged on the mounting plate, the inflatable structure includes an inflatable tube, a first piston rod and a sliding block, the inflatable tube is arranged on the mounting plate, the inflatable tube is connected to the first cylinder, the first piston rod is movably arranged in the inflatable tube, the first piston rod slides through the transverse push arm, the sliding block is movably arranged in the groove and connected to the first piston rod, and the sliding block is arranged on the moving path of the driving arm.

[0012] A further technical solution of the present application is as follows: the mobile power assembly includes a transfer tube, a threaded rod, a matching screw block, a second piston rod and a mobile execution module, the transfer tube is arranged on a mounting frame, the threaded rod is movably arranged on a protective box and is coaxially connected to a gear, the second piston rod is movably arranged in the transfer tube, the matching screw block is sleeved on the threaded rod and the two are threadedly matched, the matching screw block is connected to the second piston rod, the mobile execution module is arranged on a bottom plate and is connected to the second piston rod, and when the second piston rod moves, the mobile execution module is controlled to work synchronously to drive the entire device to move on the water surface of the breeding pond.

[0013] Further technical solutions of this application: Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following beneficial effects: The embodiment of the present invention provides a throwing component, a stirring component and a mobile power component, and utilizes a mechanical linkage structure. By controlling the throwing component to reciprocate in an arc path and utilizing the principle of inertia force, the feed can be thrown around the entire device, and the stirring component and the mobile power component can be controlled to work. On the one hand, the mixing of different types of feed is achieved, and on the other hand, the movement of the entire device can be controlled to increase the throwing range of the feed of the entire device. The entire device has a high degree of automation. Compared with traditional fixed feed feeding devices, the present device increases the eating range of crabs and does not require staff to manually mix different types of feed, thereby reducing the amount of labor input. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a crab breeding feed feeding device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a throwing component in a crab farming feed feeding device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a position adjustment module in a crab farming feed feeding device according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the feeding structure in the crab breeding feed feeding device according to an embodiment of the present invention; Figure 5This is a schematic diagram of the structure of a stirring assembly in a crab farming feed feeding device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the transmission structure in the crab breeding feed feeding device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of a mobile power component in a crab farming feed feeding device according to an embodiment of the present invention; Figure 8 It is a partial exploded view of the mobile execution module in the crab farming feed feeding device in the embodiment of the present invention.

[0015] Explanation of the symbols in the schematic diagram: 1-mixing box, 2-floater, 3-storage tank, 4-top cover, 5-rotating shaft, 6-mounting frame, 7-blocking cover, 8-throwing box, 9-throwing window, 10-stepping motor, 11-driving arm, 12-mounting plate, 13-lateral push arm, 14-positioning arm, 15-slide, 16-inflating tube, 17-longitudinal push arm, 18-through groove, 19-sliding block, 20-first piston rod, 21-impact hinge rod, 22-roller, 23-stirring roller, 24-rack, 25-first cylinder, 26-gear, 27-protection box, 28-transfer tube, 29-matching screw block, 30-threaded rod, 31-second piston rod, 32-propeller, 33-driving spiral tube, 34-spiral groove, 35-driving shaft, 36-ball, 37-second cylinder, 38-bottom plate. DETAILED DESCRIPTION

[0016] 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. The present invention is further described below in combination with the embodiments.

[0017] See also Figure 1-Figure 8In one embodiment of the present application, a crab breeding feed feeding device includes a mixing box 1, a floater 2, a top cover 4, a plurality of storage tanks 3, a bottom plate 38 and a mounting frame 6, wherein the mixing box 1 is arranged on the bottom plate 38, the floaters 2 are arranged in a group and symmetrically on the bottom plate 38, the top cover 4 is arranged on the mixing box 1, and the plurality of storage tanks 3 are symmetrically arranged on the top cover 4, the mounting frame 6 is arranged on the bottom plate 38 and connected to the mixing box 1, the feeding device also includes a throwing component, a stirring component and a mobile power component, the mobile power component is arranged between the bottom plate 38 and the mounting frame 6, and is used to provide mobile power for the entire device, the throwing component is arranged on the bottom plate 38, and is used to throw the feed in the mixing box 1 into the breeding pond, the stirring component is arranged in the mixing box 1 and is connected to the throwing component, when the throwing component is working, the stirring component is controlled to work and stir different types of feed, the mobile power component is connected to the throwing component, and when the throwing component is working, the mobile power component is controlled to work synchronously.

[0018] In this exemplary embodiment, the throwing assembly includes a feeding structure and a positioning module. The feeding structure is movably arranged on the mixing box 1, and is used to receive the feed in the mixing box 1 and put it into the breeding pond. The positioning module is arranged between the bottom plate 38 and the mounting frame 6 and is connected to the feeding structure, and is used to control the feeding structure to perform the throwing action.

[0019] In actual application, the whole device is placed on the water surface of the crab breeding pond. By controlling the operation of the positioning module, the feeding structure can be driven to work. The feeding structure can receive the feed dropped from the mixing box 1 and perform the throwing action, and the feed is evenly thrown around the mixing box 1 for the crabs to eat. When the positioning module is working, the stirring component can be controlled to work synchronously. The stirring component can stir the feed in the mixing box 1 so that different types of feed are automatically mixed together. At the same time, it can also drive the mobile power component to work, control the whole device to move on the water surface of the breeding pond, and increase the feed throwing range of the whole device.

[0020] See also Figure 1-Figure 4As another preferred embodiment of the present application, the feeding structure includes a blocking cover 7, a throwing box 8, a throwing window 9 and a resistance hinge rod 21. The resistance hinge rod 21 is in a group and the middle position of a group of resistance hinge rods 21 is hinged to the bottom plate 38. One end of each of the resistance hinge rods 21 is provided with a throwing box 8. The throwing box 8 and the mixing box 1 are slidably matched. The mixing box 1 is provided with a drop opening matched with the throwing box 8. Each of the throwing boxes 8 is provided with a blocking cover 7. The blocking cover 7 and the mixing box 1 are slidably matched. A plurality of throwing windows 9 are equidistantly arranged on the side of the throwing box 8 away from the blocking cover 7. The end of the resistance hinge rod 21 away from the throwing box 8 is connected to the positioning module. When the positioning module is working, the resistance hinge rod 21 is controlled to swing along its hinge.

[0021] In a specific case of the present embodiment, the positioning module includes a power element, a transverse push arm 13, a longitudinal push arm 17, a positioning arm 14 and a slide groove 15, the power element is arranged on the mounting frame 6, the transverse push arm 13 is movably arranged on the bottom plate 38, the longitudinal push arm 17 is movably arranged on the bottom plate 38 and connected to the transverse push arm 13, the transverse push arm 13 and the longitudinal push arm 17 form a T-shaped structure, the output end of the power element is provided with a driving arm 11, the transverse push arm 13 is provided with a through groove 18 that slides with the driving arm 11, the transverse push arm 13 is provided with a mounting plate 12, the number of the positioning arms 14 is the same as the number of the interference hinge rods 21 and are symmetrically arranged on the mounting plate 12, and the positioning arm 14 is formed with a slide groove 15 that slides with the interference hinge rod 21.

[0022] It should be particularly noted that the power element can be a stepper motor 10 or a servo motor. In the present embodiment, the power element is preferably a stepper motor 10. The stepper motor 10 is arranged on the mounting frame 6 and its output end is connected to the driving arm 11. As for the specific model parameters of the stepper motor 10, the best choice can be made according to the actual situation, and no specific limitation is made here.

[0023] In another specific case of this embodiment, a resistance reducing member is provided between the abutting hinge rod 21 and the slide groove 15 to reduce the friction resistance between the slide groove 15 and the abutting hinge rod 21 .

[0024] In addition, the resistance reducing member may be a sphere or a wheel. In the present embodiment, the resistance reducing member is preferably a roller 22 , which is movably disposed on the abutting hinge rod 21 and slidably cooperates with the slide groove 15 .

[0025] When the feed is put into the crab breeding pond, by controlling the stepper motor 10 to be powered on and rotated, the driving arm 11 can be driven to rotate, and under the cooperation between the driving arm 11 and the through slot 18, the horizontal push arm 13 and the longitudinal push arm 17 are driven to reciprocate along the bottom plate 38, and then the positioning arm 14 is driven to reciprocate along the bottom plate 38. In the process of the movement of the positioning arm 14, under the sliding and interference cooperation between the roller 22 and the slide slot 15, the interference hinge rod 21 can be driven to swing continuously along its hinge, thereby driving the throwing box 8 to reciprocate along the arc path, and then the feed in the throwing box 8 can be thrown out from the throwing window 9 by using the inertial force, so that the feed is thrown evenly and it is convenient for crabs in different positions to eat.

[0026] See also Figure 1-Figure 6 As another preferred embodiment of the present application, the stirring assembly includes a rotating shaft 5, a stirring roller 23, a protective box 27 and a transmission structure. The rotating shafts 5 are in a group and are symmetrically and movably arranged in the mixing box 1. Each of the rotating shafts 5 is sleeved with a stirring roller 23. The protective box 27 is arranged on the mixing box 1. The transmission structure is arranged in the protective box 27 and is connected with the rotating shaft 5. The positioning module also includes an inflatable structure, which is connected to the transmission structure. When the driving arm 11 moves in the groove 18, it controls the inflatable structure to drive the transmission structure to work.

[0027] In this exemplary embodiment, the transmission structure includes a gear 26, a rack 24 and a first cylinder 25. The gear 26 is movably arranged on the mixing box 1 and is coaxially connected to the rotating shaft 5. The rack 24 is movably arranged in the protective box 27. The first cylinder 25 is arranged in the protective box 27 and its movable end is connected to the rack 24. The rack 24 and the gear 26 are meshed with each other. The first cylinder 25 is connected to the inflatable structure.

[0028] It should be noted that the inflatable structure is a group and is symmetrically arranged on the mounting plate 12. The inflatable structure includes an inflatable tube 16, a first piston rod 20 and a sliding block 19. The inflatable tube 16 is arranged on the mounting plate 12, and the inflatable tube 16 is connected to the first cylinder 25. The first piston rod 20 is movably arranged in the inflatable tube 16. The first piston rod 20 slides through the transverse push arm 13. The sliding block 19 is movably arranged in the groove 18 and is connected to the first piston rod 20. The sliding block 19 is arranged on the moving path of the driving arm 11.

[0029] In the process of the stepper motor 10 driving the driving arm 11 to rotate, the driving arm 11 can move in the groove 18 and successively meet and collide with the sliding blocks 19 on both sides of the groove 18, thereby driving the first piston rod 20 to move relative to the inflation tube 16. When the first piston rod 20 moves relative to the inflation tube 16, the air in the inflation tube 16 can be repeatedly injected into the first cylinder 25. The first cylinder 25 continuously expands and contracts, thereby driving the rack 24 to reciprocate. Under the meshing action between the rack 24 and the gear 26, the rotating shaft 5 and the stirring roller 23 can be driven to reciprocate, thereby stirring different types of feed in the mixing box 1.

[0030] See also Figure 1-Figure 8 As another preferred embodiment of the present application, the mobile power assembly includes a transfer tube 28, a threaded rod 30, a matching screw block 29, a second piston rod 31 and a mobile execution module. The transfer tube 28 is arranged on the mounting frame 6, the threaded rod 30 is movably arranged on the protective box 27 and is coaxially connected to the gear 26, the second piston rod 31 is movably arranged in the transfer tube 28, the matching screw block 29 is sleeved on the threaded rod 30 and the two are threadedly matched, the matching screw block 29 is connected to the second piston rod 31, the mobile execution module is arranged on the bottom plate 38 and is connected to the second piston rod 31, and when the second piston rod 31 moves, the mobile execution module is controlled to work synchronously to drive the entire device to move on the water surface of the breeding pond.

[0031] In this exemplary embodiment, the mobile execution module includes a second cylinder 37, a propeller 32, a driving screw 33, a driving shaft 35 and a ball 36. The propeller 32 is movably arranged on a base plate 38. The driving screw 33 and the propeller 32 are coaxially connected to the base plate 38. The driving shaft 35 is slidably inserted in the driving screw 33. The surface of the driving shaft 35 is slidably embedded with a ball 36. The inner wall of the driving screw 33 is formed with a spiral groove 34 that slidably cooperates with the ball 36. The second cylinder 37 is arranged on the base plate 38 and its movable end is connected to the driving shaft 35. The second cylinder 37 is connected to the transfer pipe 28.

[0032] In actual application, during the reciprocating rotation of the gear 26, the threaded rod 30 can be driven to rotate synchronously. Under the threaded cooperation between the threaded rod 30 and the matching screw block 29, the second piston rod 31 can be driven to reciprocate along the transfer tube 28, thereby repeatedly squeezing the air in the transfer tube 28 into the second cylinder 37, driving the second cylinder 37 to continuously expand and contract, thereby driving the drive shaft 35 to reciprocate relative to the drive screw 33. Under the threaded cooperation between the ball 36 and the spiral groove 34, the drive screw 33 and the propeller 32 can be driven to rotate, thereby driving the entire device to move in the breeding pond, thereby throwing the feed to various positions in the breeding pond.

[0033] How this application works: In the process of the stepper motor 10 driving the driving arm 11 to rotate, the driving arm 11 can move in the groove 18 and successively meet and collide with the sliding blocks 19 on both sides of the groove 18, thereby driving the first piston rod 20 to move relative to the inflation tube 16. When the first piston rod 20 moves relative to the inflation tube 16, the air in the inflation tube 16 can be repeatedly injected into the first cylinder 25. The first cylinder 25 continuously expands and contracts, thereby driving the rack 24 to reciprocate. Under the meshing action between the rack 24 and the gear 26, the rotating shaft 5 and the stirring roller 23 can be driven to reciprocate, thereby stirring different types of feed in the mixing box 1. During the reciprocating rotation of the gear 26, the threaded rod 30 can be driven to rotate synchronously. Under the threaded cooperation between the threaded rod 30 and the matching screw block 29, the second piston rod 31 can be driven to reciprocate along the transfer tube 28, thereby repeatedly squeezing the air in the transfer tube 28 into the second cylinder 37, driving the second cylinder 37 to continuously expand and contract, thereby driving the drive shaft 35 to reciprocate relative to the drive screw 33. Under the threaded cooperation between the ball 36 and the spiral groove 34, the drive screw 33 and the propeller 32 can be driven to rotate, thereby driving the entire device to move in the breeding pond, thereby throwing the feed to various positions in the breeding pond.

[0034] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A crab breeding feed feeding device, comprising a mixing box, a floater, a top cover, a plurality of storage tanks, a bottom plate and a mounting frame, wherein the mixing box is arranged on the bottom plate, the floaters are arranged in a group and symmetrically on the bottom plate, the top cover is arranged on the mixing box, a plurality of storage tanks are symmetrically arranged on the top cover, the mounting frame is arranged on the bottom plate and connected to the mixing box, characterized in that: The feeding device also includes a throwing component, a stirring component and a mobile power component. The mobile power component is arranged between the bottom plate and the mounting frame, and is used to provide mobile power for the entire device. The throwing component is arranged on the bottom plate, and is used to throw the feed in the mixing box into the breeding pond. The stirring component is arranged in the mixing box and is connected to the throwing component. When the throwing component is working, it controls the stirring component to work and stirs different types of feed. The mobile power component is connected to the throwing component, and when the throwing component is working, it controls the mobile power component to work synchronously.

2. The crab breeding feed feeding device according to claim 1, characterized in that: The throwing assembly includes a feeding structure and a positioning module. The feeding structure is movably arranged on the mixing box, and is used to receive the feed in the mixing box and put it into the breeding pond. The positioning module is arranged between the bottom plate and the mounting frame and is connected to the feeding structure, and is used to control the feeding structure to perform the throwing action.

3. The crab breeding feed feeding device according to claim 2, characterized in that: The feeding structure includes a blocking cover, a throwing box, a throwing window and a resistance hinge rod. The resistance hinge rod is in a group and the middle position of a group of resistance hinge rods is hinged to the bottom plate. A throwing box is arranged at one end of each of the resistance hinge rods. The throwing box and the mixing box are slidably matched. The mixing box is provided with a drop opening matched with the throwing box. Each of the throwing boxes is provided with a blocking cover. The blocking cover and the mixing box are slidably matched. A plurality of throwing windows are equidistantly arranged on the side of the throwing box away from the blocking cover. The end of the resistance hinge rod away from the throwing box is connected to the positioning module. When the positioning module is working, the resistance hinge rod is controlled to swing along its hinge.

4. The crab breeding feed feeding device according to claim 3, characterized in that: The positioning module includes a power element, a transverse push arm, a longitudinal push arm, a positioning arm and a slide groove, the power element is arranged on a mounting frame, the transverse push arm is movably arranged on a base plate, the longitudinal push arm is movably arranged on a base plate and connected to the transverse push arm, the transverse push arm and the longitudinal push arm form a T-shaped structure, a driving arm is arranged at the output end of the power element, a through groove that slides with the driving arm is arranged on the transverse push arm, a mounting plate is arranged on the transverse push arm, the number of the positioning arms is the same as the number of the interference hinge rods and are symmetrically arranged on the mounting plate, and a slide groove that slides with the interference hinge rod is formed on the positioning arm.

5. The crab breeding feed feeding device according to claim 4, characterized in that: A resistance reducing member is provided between the interference hinge rod and the slide slot, for reducing the friction resistance between the slide slot and the interference hinge rod.

6. The crab breeding feed feeding device according to claim 4, characterized in that: The stirring assembly includes a rotating shaft, a stirring roller, a protective box and a transmission structure. The rotating shafts are in a group and are symmetrically and movably arranged in the mixing box. Each of the rotating shafts is sleeved with a stirring roller. The protective box is arranged on the mixing box. The transmission structure is arranged in the protective box and is connected with the rotating shaft. The positioning module also includes an inflatable structure, which is connected to the transmission structure. When the driving arm moves in the groove, it controls the inflatable structure to work so as to drive the transmission structure to work.

7. The crab breeding feed feeding device according to claim 6, characterized in that: The transmission structure includes a gear, a rack and a first cylinder. The gear is movably arranged on the mixing box and is coaxially connected to the rotating shaft. The rack is movably arranged in the protective box. The first cylinder is arranged in the protective box and its movable end is connected to the rack. The rack is meshed with the gear. The first cylinder is connected to the inflatable structure.

8. The crab breeding feed feeding device according to claim 7, characterized in that: The inflatable structures are in a group and are symmetrically arranged on the mounting plate. The inflatable structures include an inflatable tube, a first piston rod and a sliding block. The inflatable tube is arranged on the mounting plate, and is connected to the first cylinder. The first piston rod is movably arranged in the inflatable tube, and the first piston rod slides through the transverse push arm. The sliding block is movably arranged in the groove and is connected to the first piston rod. The sliding block is arranged on the moving path of the driving arm.

9. The crab breeding feed feeding device according to claim 7, characterized in that: The mobile power assembly includes a transfer tube, a threaded rod, a matching screw block, a second piston rod and a mobile execution module. The transfer tube is arranged on a mounting frame, the threaded rod is movably arranged on a protective box and is coaxially connected to a gear, the second piston rod is movably arranged in the transfer tube, the matching screw block is sleeved on the threaded rod and the two are threadedly matched, the matching screw block is connected to the second piston rod, the mobile execution module is arranged on a bottom plate and is connected to the second piston rod, and when the second piston rod moves, the mobile execution module is controlled to work synchronously to drive the entire device to move on the water surface of the breeding pond.

10. The crab breeding feed feeding device according to claim 9, characterized in that: The mobile execution module includes a second cylinder, a propeller, a driving screw, a driving shaft and a ball. The propeller is movably arranged on the base plate. The driving screw and the propeller are coaxially connected to the base plate. The driving shaft is slidably inserted in the driving screw. A ball is slidably embedded on the surface of the driving shaft. The inner wall of the driving screw is formed with a spiral groove that slidably cooperates with the ball. The second cylinder is arranged on the base plate and its movable end is connected to the driving shaft. The second cylinder is connected to the transfer pipe.

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