A pair of multi-force cage automatic feeding device

By designing an automatic feeding device including a motor, a stirring rod and a discharge pipe, the problem of low feeding accuracy in the prior art is solved, and automatic uniform feeding of marine ranches is realized, and feeding efficiency and accuracy are improved.

CN119184012BActive Publication Date: 2025-05-02GUANGDONG OCEAN UNIVERSITY
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Patent Information

Application Number
CN202411664080.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2025-05-02
Estimated Expiration
2044-11-20

AI Technical Summary

Technical Problem

The existing one-pair multi-gravity cage automatic feeding device has uncertainty in the feeding accuracy. Due to factors such as the speed of the feeding dragon and the swing frequency of the feeding plate, it is difficult to ensure the uniformity and accuracy of feeding.

Method used

An automatic feeding device including a motor, a mixing rod, a pulley set, a support rod, a bevel gear and a discharge pipe is designed. The pulley set and a support rod are driven to rotate through the stirring rod, and the stirring roller in the discharge pipe is driven to rotate, ensuring that the bait is evenly stirred and the smooth flow of materials in the discharge pipe is smooth.

Benefits of technology

Automatic and even feeding of marine ranches is achieved, which improves the accuracy and efficiency of feeding, and prevents blockage during feeding.

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Abstract

The present invention belongs to the technical field of marine ranch breeding, and discloses a pair of multi-force type cage automatic feeding devices, comprising a machine body, a motor is installed on the top of the machine body, and a stirring rod is connected to the output end of the motor, a pulley group is connected to the bottom end of the stirring rod, and a support rod is connected to the left end of the pulley group, through the motor, stirring rod, pulley group, first bevel gear, second bevel gear, discharge pipe and stirring roller, the motor is started, the motor drives the stirring rod to rotate, and the bait inside the machine body can be evenly stirred, and when the stirring rod rotates, the pulley group and the support rod can be driven to rotate, so that the support rod drives the first bevel gear, the second bevel gear, the connecting rod and the stirring roller inside the discharge pipe to rotate, and the electromagnetic valve is started, and the stirred material can flow into the connecting pipe through the discharge pipe to the cage body, thereby achieving the purpose of facilitating multi-directional automatic and uniform feeding of the marine ranch and preventing blockage during feeding.
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Description

Technical Field

[0001] The invention relates to the technical field of marine ranch breeding, and in particular to a pair of multi-force type cage automatic feeding devices. Background Art

[0002] The multi-force cage marine ranch automatic feeding device is an advanced fishery farming equipment. It combines modern computer information technology, remote control technology and wireless communication technology to realize the automatic feeding of deep-sea cage farming. The device can accurately control the amount and time of bait delivery, improve farming efficiency and reduce labor costs. It is an important embodiment of the transformation and upgrading of marine fisheries towards informatization, intelligence and modernization.

[0003] However, there are still some problems when using the existing pair of multi-force cage automatic feeding devices:

[0004] There is an existing marine ranch automatic feeding device with Chinese patent application number CN202111604222.0, which includes a storage bin, which is installed on a support frame. A feed auger is fixed to the bottom of the storage bin, and the feed auger is inclined upward from back to front. The discharge port at the bottom of the storage bin is connected to the feed port at the bottom of the feed auger through a feed pipe. A feed stripping plate is provided just below the discharge port at the top of the feed auger. The left side of the feed stripping plate is hinged to the lower outer wall of the feed auger, and the feed stripping plate is driven by the feed stripping mechanism to swing back and forth. Compared with the prior art, the invention has the following advantages: the invention can realize automatic feeding of food through the coordination of structural components such as the storage bin, the feeding auger, the material-diverting plate and the material-diverting mechanism, and the storage bin can store more food at one time, and the staff does not need to carry the food every time for feeding, thus saving a lot of manpower and time, and greatly improving the efficiency of feeding work. Although the device can realize automatic feeding, the accuracy of feeding may be affected by many factors, such as the rotation speed of the feeding auger, the swing frequency of the material-diverting plate, etc. These factors need to be precisely controlled to ensure the uniformity and accuracy of feeding.

[0005] In view of the above problems, an innovative design was carried out based on the original pair of multi-force cage automatic feeding devices. Summary of the invention

[0006] The purpose of the present invention is to provide a pair of multi-force cage automatic feeding devices to solve the problem that the existing devices mentioned in the above background technology can realize automatic feeding, but the feeding accuracy may be affected by various factors, such as the rotation speed of the feeding auger, the swing frequency of the feeding plate, etc. These factors need to be precisely controlled to ensure the uniformity and accuracy of feeding.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pair of multi-force cage automatic feeding devices, including a body, a motor is installed on the top of the body, and the output end of the motor is connected to a stirring rod, the bottom end of the stirring rod is connected to a pulley group, and the left end of the pulley group is connected to a support rod, the top of the support rod is fixedly connected to a first bevel gear, and one end of the first bevel gear is meshingly connected to a second bevel gear, a discharge pipe is opened on the outside of the body, and four groups of discharge pipes are arranged, the inside of the discharge pipe is rotatably connected to a stirring roller, and the two ends of the stirring roller extend to the outside of the discharge pipe, and the stirring roller Connecting rods are provided at both ends of the body, one end of the discharge pipe is connected to a connecting pipe, and a cage body is provided at the bottom of the connecting pipe. The motor is started, and the motor drives the stirring rod to rotate, so that the bait inside the body can be evenly stirred, and the stirring rod can drive the pulley group and the support rod to rotate when rotating, so that the support rod drives the first bevel gear, the second bevel gear, the connecting rod and the stirring roller inside the discharge pipe to rotate, and the solenoid valve is started. The stirred material can flow into the connecting pipe through the discharge pipe and into the cage body, thereby achieving the purpose of facilitating automatic and uniform feeding of the marine ranch in all directions and preventing blockage during feeding.

[0008] Preferably, one side of the stirring rod is connected to a fixing rod, and two groups of fixing rods are provided, and each group of fixing rods has two fixing rods.

[0009] Preferably, a slide groove is formed at one end of the two groups of fixed rods, and a sliding rod is slidably connected inside the slide groove, a tension spring is connected between the sliding rod and the slide groove, and a scraper brush is fixedly connected between the two sliding rods.

[0010] As a preferred technical solution of the present invention, by setting a fixed rod and a scraper brush, the interior of the machine body can be cleaned regularly to prevent feed residue and blockage, and the scraper brush slides in the slide groove through the sliding rod and is powered by a tension spring to ensure that the scraper brush can fit tightly inside the machine body and increase the buffering force through the centrifugal force under high-speed rotation.

[0011] Preferably, a limiting groove is provided inside the slide groove, and a limiting block is slidably connected inside the limiting groove, and the limiting block is fixedly connected to the sliding rod.

[0012] As a preferred technical solution of the present invention, when the sliding rod slides inside the sliding groove, it can drive the limit block to move along the limit groove, ensuring that no deviation occurs during the movement process.

[0013] Preferably, guide grooves are provided at both ends of the discharge pipe, and guide blocks are slidably connected inside the guide grooves, and the guide blocks are arranged in a T-shaped structure.

[0014] As a preferred technical solution of the present invention, the guide block can move along the guide groove when sliding, which can ensure stability during the movement, and the guide block is arranged in a T-shaped structure, so that the guide block is more stable when moving.

[0015] Preferably, one end of the guide block is fixedly connected to a connecting sleeve, and the connecting sleeve is slidably connected to the discharge pipe, one side of the discharge pipe is fixedly connected to a fixing block, and the outer surface of the fixing block is sleeved with a supporting spring.

[0016] As a preferred technical solution of the present invention, the provision of the support spring and the positioning block provides stable support and positioning for the connecting sleeve, preventing it from shifting or shaking during sliding, and the connecting sleeve can be reset by the support spring.

[0017] Preferably, a positioning block is fixedly connected inside the connecting sleeve, and the positioning block is fixedly connected to one side of the supporting spring.

[0018] As a preferred technical solution of the present invention, the connecting sleeve can drive the positioning block to move when it moves, and the positioning block can drive the supporting spring to be squeezed when it moves. When the connecting sleeve is loosened, the supporting spring can drive the positioning block to reset.

[0019] Preferably, a cavity is provided inside the connecting tube, a positioning rod is slidably connected inside the cavity, and a return spring is connected between the positioning rod and the cavity.

[0020] As a preferred technical solution of the present invention, the provision of the positioning rod and the return spring realizes the rapid connection and fixation between the connecting pipe and the discharge pipe.

[0021] Preferably, both ends of the connecting pipe are provided with positioning grooves, and the positioning rod is slidably connected to the positioning grooves, the top of the positioning rod is provided with an inclined surface, and one side of the bottom of the positioning block is provided with an inclined surface matching the positioning rod.

[0022] As a preferred technical solution of the present invention, when the connecting sleeve slides to a certain position, the positioning rod will automatically snap into the positioning groove to fix the connecting pipe, and the reset spring provides power for resetting the positioning rod.

[0023] Preferably, an above-water sensor is provided on the upper left side of the machine body, and an underwater sensor is provided on the upper part of the cage body, a control device is installed on the outer surface of the machine body, and an electromagnetic valve is installed on the outer surface of the discharge pipe.

[0024] As a preferred technical solution of the present invention, the setting of above-water sensors and underwater sensors can monitor the water quality, temperature and other parameters of the breeding environment in real time, and transmit the data to the control device. The control device automatically adjusts the amount and time of feed delivery according to the received data to achieve precise feeding.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the pair of multi-force automatic cage feeding devices, through the set motor, stirring rod, pulley group, support rod, first bevel gear, second bevel gear, discharge pipe and stirring roller, start the motor, the motor drives the stirring rod to rotate, the bait inside the body can be evenly stirred, and when the stirring rod rotates, it can drive the pulley group and the support rod to rotate, so that the support rod drives the first bevel gear, the second bevel gear, the connecting rod and the stirring roller inside the discharge pipe to rotate, start the solenoid valve, the stirred material can flow into the connecting pipe through the discharge pipe to the inside of the cage body, thereby achieving the purpose of facilitating multi-directional automatic and uniform feeding of the marine ranch and preventing blockage during feeding.

[0026] 1. Through the provision of a fixed rod, a slide groove, a sliding rod, a stretching spring and a scraping brush, when the motor drives the stirring rod to rotate, the motor can drive the stirring rod to evenly stir the bait, when the stirring rod rotates, it can drive the fixed rod to rotate, and when the fixed rod rotates, it can drive the sliding rod to rotate synchronously, and the sliding rod drives the scraping brush to scrape the bait adhered to the inner wall of the machine body, and a stretching spring is connected between the sliding rod and the fixed rod, which can form centrifugal force under high-speed rotation, so that the sliding rod pulls the stretching spring to move outward, so as to form a buffer when the scraping brush cleans and scrapes the inner wall of the machine body, thereby preventing the inner wall of the machine body from being damaged;

[0027] 2. By setting the connecting sleeve, fixed block, support spring, positioning block, cavity, positioning rod, reset spring and positioning groove, the connecting sleeve that is slidably connected to the outer surface of the sliding discharge pipe can drive the positioning block to squeeze the supporting spring, and then the connecting pipe and the discharge pipe are connected. After that, the connecting sleeve is loosened, and the supporting spring can push the positioning block to move. When the positioning block is reset, it can push the positioning rod downward, so that the positioning rod and the positioning groove at the connecting pipe are clamped, thereby achieving the purpose of facilitating the quick connection of the connecting pipe and the discharge pipe, thereby preventing leakage during feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the front view cutaway structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention from top view;

[0031] Figure 4 It is a bottom view structural schematic diagram of the present invention;

[0032] Figure 5 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0033] Figure 6 For the present invention Figure 2 Schematic diagram of the structure at B in the middle;

[0034] Figure 7 This is a schematic structural diagram of the connection state of the discharge pipe and the connecting pipe of the present invention;

[0035] Figure 8 This is a schematic diagram of the structure of the present invention when the discharge pipe and the connecting pipe are not connected.

[0036] In the figure: 1. body; 2. motor; 3. stirring rod; 4. pulley group; 5. support rod; 6. first bevel gear; 7. second bevel gear; 8. discharge pipe; 9. stirring roller; 10. connecting rod; 11. connecting pipe; 12. net box body; 13. fixed rod; 14. slide groove; 15. sliding rod; 16. tension spring; 17. scraper; 18. limit groove; 19. limit block; 20. guide groove; 21. guide block; 22. connecting sleeve; 23. fixed block; 24. support spring; 25. positioning block; 26. cavity; 27. positioning rod; 28. reset spring; 29. ​​positioning groove; 30. above-water sensor; 31. underwater sensor; 32. control equipment; 33. solenoid valve. DETAILED DESCRIPTION

[0037] 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.

[0038] See also Figure 1-8The present invention provides a technical solution: a pair of multi-force cage automatic feeding devices, including a body 1, a motor 2 is installed on the top of the body 1, and the output end of the motor 2 is connected to a stirring rod 3, the bottom end of the stirring rod 3 is connected to a pulley group 4, and the left end of the pulley group 4 is connected to a support rod 5, the top of the support rod 5 is fixedly connected to a first bevel gear 6, and one end of the first bevel gear 6 is meshedly connected to a second bevel gear 7, a discharge pipe 8 is opened on the outside of the body 1, and the discharge pipe 8 is provided with four groups, the inside of the discharge pipe 8 is rotatably connected to a stirring roller 9, and both ends of the stirring roller 9 extend to the outside of the discharge pipe 8, and both ends of the stirring roller 9 are provided with connecting rods 10, one end of the discharge pipe 8 is connected to a connecting pipe 11, and the bottom of the connecting pipe 11 is provided with A net cage body 12 is arranged, a limit groove 18 is provided inside the slide groove 14, and the limit groove 18 is internally slidably connected to a limit block 19, and the limit block 19 is fixedly connected to the sliding rod 15, and the motor 2 is started, and the motor 2 drives the stirring rod 3 to rotate, so that the bait inside the body 1 can be evenly stirred, and when the stirring rod 3 rotates, the pulley group 4 and the support rod 5 can be driven to rotate, so that the support rod 5 drives the first bevel gear 6, the second bevel gear 7, the connecting rod 10 and the stirring roller 9 inside the discharge pipe 8 to rotate, and the solenoid valve 33 is started, and the stirred material can flow into the connecting pipe 11 through the discharge pipe 8 to the inside of the net cage body 12, thereby achieving the purpose of facilitating automatic and uniform feeding of the marine ranch in all directions and preventing blockage during feeding.

[0039] A fixed rod 13 is connected to one side of the stirring rod 3, and the fixed rod 13 is provided with two groups, and each group of fixed rods 13 is provided with two rods, a slide groove 14 is provided at one end of the two groups of fixed rods 13, and a sliding rod 15 is slidably connected inside the slide groove 14, a tension spring 16 is connected between the sliding rod 15 and the slide groove 14, and a scraper 17 is fixedly connected between the two sliding rods 15, a limiting groove 18 is provided inside the slide groove 14, and a limiting block 19 is slidably connected inside the limiting groove 18, and the limiting block 19 is fixedly connected to the sliding rod 15. When the motor 2 drives the stirring rod 3 to rotate, the motor 2 can drive the stirring rod 3 to stir the bait evenly, and the stirring rod 3 When rotating, it can drive the fixed rod 13 to rotate, and when the fixed rod 13 rotates, it can drive the sliding rod 15 to rotate synchronously. When the sliding rod 15 slides inside the slide groove 14, it can drive the limit block 19 to move along the limit groove 18 to ensure that there will be no deviation during the movement process, and the sliding rod 15 drives the scraper 17 to scrape the bait adhered to the inner wall of the body 1, and a tension spring 16 is connected between the sliding rod 15 and the fixed rod 13. Centrifugal force can be generated under high-speed rotation, so that the sliding rod 15 pulls the tension spring 16 to move outward, thereby achieving a buffer when the scraper 17 cleans and scrapes the inner wall of the body 1, thereby preventing damage to the inner wall of the body 1.

[0040] Both ends of the discharge pipe 8 are provided with guide grooves 20, and the guide grooves 20 are slidably connected with guide blocks 21, and the guide blocks 21 are arranged in a T-shaped structure, one end of the guide block 21 is fixedly connected with a connecting sleeve 22, and the connecting sleeve 22 is slidably connected to the discharge pipe 8, one side of the discharge pipe 8 is fixedly connected with a fixing block 23, and the outer surface of the fixing block 23 is sleeved with a supporting spring 24, the inside of the connecting sleeve 22 is fixedly connected with a positioning block 25, and the positioning block 25 is fixedly connected to one side of the supporting spring 24, and the inside of the connecting pipe 11 is provided with a cavity 26, and the inside of the cavity 26 is slidably connected to the discharge pipe 8. A positioning rod 27 is connected, and a return spring 28 is connected between the positioning rod 27 and the cavity 26. Positioning grooves 29 are provided at both ends of the connecting pipe 11, and the positioning rod 27 is slidably connected to the positioning grooves 29. The top of the positioning rod 27 is provided with an inclined surface, and one side of the bottom of the positioning block 25 is provided with an inclined surface matching the positioning rod 27. An above-water sensor 30 is provided on the upper left side of the machine body 1, and an underwater sensor 31 is provided above the cage body 12. A control device 32 is installed on the outer surface of the machine body 1, and an electromagnetic valve 33 is installed on the outer surface of the discharge pipe 8. The outer surface of the sliding discharge pipe 8 is slidably connected. The connecting sleeve 22 is connected, and the connecting sleeve 22 can drive the positioning block 25 to squeeze the supporting spring 24, and then the connecting pipe 11 is connected to the discharge pipe 8, and then the connecting sleeve 22 is loosened, and the supporting spring 24 can push the positioning block 25 to move. When the positioning block 25 is reset, it can push the positioning rod 27 to move downward, so that the positioning rod 27 is engaged with the positioning groove 29 issued at the connecting pipe 11, and the guide block 21 can move along the guide groove 20 when sliding, which can ensure the stability during the movement, and the guide block 21 is set in a T-shaped structure, so that the guide block 21 is more stable when moving, so The purpose of facilitating the quick connection of the connecting tube 11 and the discharge tube 8 is achieved, thereby preventing leakage during feeding. When the connecting tube 11 and the discharge tube 8 need to be quickly disassembled, the connecting sleeve 22 is slid again, so that the connecting sleeve 22 drives the positioning block 25 and the supporting spring 24 to be squeezed, and one end of the positioning rod 27 loses the force of being squeezed by the positioning block 25, and the reset spring 28 can drive the positioning rod 27 to reset, so that the positioning rod 27 and the positioning groove 29 opened in the connecting tube 11 lose the clamping force, thereby facilitating the quick disassembly of the connecting tube 11 and the discharge tube 8.

[0041] First, slide the connecting sleeve 22 that is slidably connected to the outer surface of the discharge pipe 8. The connecting sleeve 22 can drive the positioning block 25 to squeeze the supporting spring 24, and then dock the connecting pipe 11 with the discharge pipe 8. Then loosen the connecting sleeve 22. The supporting spring 24 can push the positioning block 25 to move. When the positioning block 25 is reset, it can push the positioning rod 27 to move downward, so that the positioning rod 27 is engaged with the positioning groove 29 issued at the connecting pipe 11. Then start the motor 2. When the motor 2 drives the stirring rod 3 to rotate, the motor 2 can drive the stirring rod 3 to evenly stir the bait. When the stirring rod 3 rotates, it can drive the fixed rod 13 to rotate. When the fixed rod 13 rotates, the sliding rod 15 can be driven to rotate synchronously, and the sliding rod 15 drives the scraper 17 to scrape the bait adhered to the inner wall of the body 1. Then the water sensor 30 and the underwater sensor 31 can collect data on the aquaculture sea area and climate conditions in real time, and send them to the control device 32 through the wireless signal transmission device. The control device 32 can analyze the data, send a feeding instruction to the body 1, and adjust the automatic feeding amount and feeding time through the electromagnetic valve 33. When the electromagnetic valve 33 is opened, the mixed material can flow into the connecting pipe 11 through the discharge pipe 8 until it reaches the inside of the cage body 12 for automatic feeding.

[0042] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the embodiments of the present invention have been shown and described, it is understood by ordinary technicians in the field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pair of multi-force net cage automatic feeding devices, comprising a body (1), characterized in that: A motor (2) is installed on the top of the machine body (1), and the output end of the motor (2) is connected to a stirring rod (3), the bottom end of the stirring rod (3) is connected to a pulley group (4), and the left end of the pulley group (4) is connected to a support rod (5), the top of the support rod (5) is fixedly connected to a first bevel gear (6), and one end of the first bevel gear (6) is meshingly connected to a second bevel gear (7), a discharge pipe (8) is provided on the outside of the machine body (1), and four groups of discharge pipes (8) are provided, the inside of the discharge pipe (8) is rotatably connected to a stirring roller (9), and both ends of the stirring roller (9) extend to the outside of the discharge pipe (8), and both ends of the stirring roller (9) are provided with connecting rods (10), one end of the discharge pipe (8) is connected to a connecting pipe (11), and a net box body (12) is provided at the bottom of the connecting pipe (11); One side of the stirring rod (3) is connected to a fixing rod (13), and two groups of fixing rods (13) are provided, and each group of fixing rods (13) is provided with two fixing rods; A slide groove (14) is provided at one end of the two groups of fixed rods (13), and a sliding rod (15) is slidably connected inside the slide groove (14), a tension spring (16) is connected between the sliding rod (15) and the slide groove (14), and a scraper (17) is fixedly connected between the two sliding rods (15).

2. A pair of multi-force cage automatic feeding device according to claim 1, characterized in that: A limiting groove (18) is provided inside the sliding groove (14), and a limiting block (19) is slidably connected inside the limiting groove (18), and the limiting block (19) is fixedly connected to the sliding rod (15).

3. A pair of multi-force cage automatic feeding device according to claim 1, characterized in that: Both ends of the discharge pipe (8) are provided with guide grooves (20), and the inside of the guide grooves (20) is slidably connected with guide blocks (21), and the guide blocks (21) are arranged in a T-shaped structure.

4. A pair of multi-force cage automatic feeding device according to claim 3, characterized in that: One end of the guide block (21) is fixedly connected to a connecting sleeve (22), and the connecting sleeve (22) is slidably connected to the discharge pipe (8). One side of the discharge pipe (8) is fixedly connected to a fixing block (23), and the outer surface of the fixing block (23) is sleeved with a supporting spring (24).

5. A pair of multi-force cage automatic feeding device according to claim 4, characterized in that: A positioning block (25) is fixedly connected inside the connecting sleeve (22), and the positioning block (25) is fixedly connected to one side of the supporting spring (24).

6. A pair of multi-force cage automatic feeding device according to claim 1, characterized in that: The connecting tube (11) is provided with a cavity (26) inside, and a positioning rod (27) is slidably connected inside the cavity (26), and a return spring (28) is connected between the positioning rod (27) and the cavity (26).

7. A pair of multi-force cage automatic feeding device according to claim 1, characterized in that: Both ends of the connecting pipe (11) are provided with positioning grooves (29), and the positioning rod (27) is slidably connected to the positioning grooves (29), the top of the positioning rod (27) is provided with an inclined surface, and one side of the bottom of the positioning block (25) is provided with an inclined surface matching the positioning rod (27).

8. A pair of multi-force cage automatic feeding device according to claim 1, characterized in that: An above-water sensor (30) is arranged on the upper left side of the machine body (1), and an underwater sensor (31) is arranged on the upper side of the cage body (12); a control device (32) is installed on the outer surface of the machine body (1), and an electromagnetic valve (33) is installed on the outer surface of the discharge pipe (8).

Citation Information

Patent Citations

  • Automatic feeding device for marine ranching

    CN114467821A

  • Automatic feeding device for marine ranch

    CN113163738A