Flexible air-tight shrimp feed dispenser

Abstract

The application relates to the technical field of aquaculture, in particular to a flexible air-locked shrimping material feeding machine feeder, which comprises a machine shell, a material distributing part and a driving part, the material distributing part is rotatably arranged in the machine shell, the driving part is fixed outside the machine shell and is in transmission connection with one end of the material distributing part, a material scraping part with elasticity is arranged on the material distributing part and is in contact with the inner wall of the machine shell, the material distributing part comprises a rotary distributing part, a fixing part and a limiting part, a first elastic sealing part is arranged in the machine shell, the machine shell is provided with a separating part, the driving part comprises a speed reducing part and an eccentric driving part, and the like. The application has the technical effects that materials can be efficiently conveyed and distributed, the material scraping part can prevent material accumulation, the elastic sealing part can guarantee the sealing property, the parts are reasonably arranged, the feeder can stably and reliably operate, the feeding efficiency and quality are improved, and the like.

Description

Technical Field

[0001] This application relates to the field of aquaculture technology, and in particular to a flexible closed-ventilation shrimp feeder feeder. Background Technology

[0002] With the large-scale development of the aquaculture industry, shrimp farming has seen continuous growth in both area and yield due to its significant economic benefits. This has led to increasingly stringent requirements for the reliability, stability, and adaptability of shrimp feeding equipment. As the core equipment for precise shrimp feeding, the feeder's dispensing efficiency and fault tolerance directly affect the shrimp's feeding performance and farming profits.

[0003] Currently, most mainstream shrimp feeders on the market adopt an impeller-type dispensing structure. The impeller rotates to quantitatively deliver shrimp feed to the feeding pipes, and then distributes it evenly to various areas of the shrimp pond. Because shrimp feed particles are relatively fine, they are prone to breakage during production, transportation, and feeding. Furthermore, shrimp ponds have high feeding frequency and long equipment operating times, leading to a buildup of broken feed inside the equipment. Additionally, shrimp ponds require seawater for aquaculture, and the acidity or alkalinity of seawater can corrode the metal parts of the equipment. Moreover, shrimp have the biological characteristic of "only feeding on bottom-dwelling food and not surfacing to forage." If the feeder malfunctions, such as uneven dispensing, excessive feed breakage, or machine shutdown, it will directly lead to insufficient shrimp feeding, affecting growth rate and survival rate. Uneaten feed will also float on the surface, breeding bacteria, damaging the water quality, and creating a vicious cycle in aquaculture.

[0004] To achieve the feeding and sealing functions of feeders, existing technologies generally adopt a design approach of "rigid materials + fixed structure." Regarding core components, the impeller and impeller housing are mostly made of hard materials such as metal. To avoid rigid friction during rotation, a fixed gap must be maintained between them. The drive system uses a standard motor with a common reducer, increasing torque by boosting motor power to try and prevent impeller jamming. Rotating connections rely on metal bearings, utilizing rolling friction to reduce rotational resistance and ensure smooth impeller operation. To address the issue of feed sticking to the inner wall, existing technologies attempt two optimization approaches: one is to increase the impeller speed, relying on centrifugal force to dislodge debris adhering to the inner wall; the other is to apply an anti-sticking coating to the inner wall of the impeller housing to reduce the probability of debris adhesion.

[0005] It is evident that existing technical solutions have many insurmountable flaws and cannot meet the actual needs of shrimp pond farming.

[0006] First, there is a fundamental contradiction between the rigid material and the fixed gap design: although the gap can avoid friction, debris can easily enter and adhere to the inner wall. After absorbing water, the material becomes more sticky, and long-term accumulation will increase the impeller's rotation resistance. This not only leads to a decrease in material distribution efficiency, but also easily causes the impeller to jam and stop, resulting in excessive torque and motor burnout. The squeezed debris that sticks to the wall will produce more fine powder, which shrimp cannot effectively feed on, leading to a decrease in yield. The uneaten fine powder will also pollute the water quality and increase the cost of water replacement.

[0007] Secondly, there are significant shortcomings in the drive and rotating components: standard motors with ordinary reducers cannot solve the problem of powder accumulation, and the risk of impeller jamming and burnout remains high; metal bearings are easily corroded in seawater, shortening their service life to 3-6 months, far below the overall design life of 1-2 years for the equipment, and the residual feed after shutdown will cause grease to form near the bearings and become damp, resulting in a more than 40% probability of impeller jamming during the next startup, requiring manual disassembly and cleaning, which seriously affects feeding efficiency; metal bearings require monthly oiling maintenance, and the grease not only increases costs but may also seep into the feed, polluting the water and harming the health of shrimp.

[0008] Finally, the wall-sticking solution has limited effectiveness. Increasing the impeller speed will increase energy consumption and exacerbate feed grinding, further increasing the proportion of fine powder. The anti-sticking coating will fall off due to impeller friction after 3-4 months and needs to be reapplied. Moreover, the coating material may pose safety hazards and does not meet food safety standards. Utility Model Content

[0009] In order to reduce the problems of existing feeders where the impeller and casing are made of metal and require gaps, feed scraps easily absorb moisture and become sticky, adhering to the inner wall of the impeller casing, which leads to reduced feeding efficiency, impeller jamming and machine burnout, and increased feed scraps over time, this application provides a flexible closed-air shrimp feeder feeder.

[0010] This application provides a feeder for a flexible closed-air shrimp feeder, which adopts the following technical solution: A flexible closed-ventilation shrimp feeder includes a housing, a distributing component, and a driving component. The distributing component is rotatably installed inside the housing, and the driving component is fixedly installed on the outer surface of the housing. One end of the distributing component is connected to the driving component for transmission. The distributing component is provided with a scraping component, which is elastic and contacts the inner wall of the housing.

[0011] By adopting the above technical solutions, scraping and sealing during the feed distribution process are achieved, solving the problems of feed fragments adhering, reduced distribution efficiency, and impeller jamming and burnout caused by gaps between hard (metal) impellers and casings. It also addresses the issues of poor feeding effect, reduced aquatic production, and deteriorated water quality in shrimp ponds where shrimp only feed on bottom-feeding feed, significantly improving equipment reliability and aquaculture economic benefits.

[0012] Preferably, the material separating component includes: A rotary separator is rotatably mounted inside the housing, and one end of it is connected to the drive component for transmission. A fixing component, which is fixed to the rotating component; A limiting component is included, which is detachably connected to a fixing component via a first connecting component, with the scraper component located between the fixing component and the limiting component. By adopting the above technical solution, and in conjunction with the arrangement of the scraper component contacting the inner wall of the machine casing, the scraper component is installed on the distributing component. The scraper component can contact the inner wall of the machine casing under the drive of the rotating distributing component, completing the scraping and sealing during the feed distributing process. Simultaneously, the detachable connection between the limiting component and the fixing component via the first connecting component facilitates the replacement of the scraper component, reducing costs and simplifying operation.

[0013] Preferably, the rotary part has a positioning part, and one end of the scraper is inserted into the positioning part.

[0014] By adopting the above technical solution, the positioning unit can accurately position the scraper, ensuring that the scraper always maintains good contact with the inner wall of the machine casing during the rotation of the feeder, achieving stable flexible scraping and sealing, effectively avoiding the problem of feed fragments adhering, improving the working efficiency and feeding effect of the feeder, and ensuring the yield and water quality of aquaculture.

[0015] Preferably, the housing is provided with a first sealing element, which is fixedly installed inside the housing and arranged along the depth direction of the housing; at least two sets of the first sealing element are provided, and each end of the rotating component is rotatably connected to at least one set of the first sealing element; the first sealing element is elastic.

[0016] By adopting the above technical solution, the sealing inside the feeder housing of the flexible closed-air shrimp feeder is achieved. The end of the rotary component is rotatably connected to the elastic first seal, replacing the traditional metal bearing. This effectively reduces the coefficient of friction and clearance, and solves the problem that the existing pure metal impeller uses metal bearings, which can cause the impeller to restart and jam after the equipment is stopped due to residual feed. In addition, the first seal made of nylon is resistant to seawater corrosion and does not require oiling maintenance, thus reducing maintenance costs.

[0017] Preferably, the housing has a detachment component, which is connected to the housing via a second connecting component.

[0018] By adopting the above technical solution, the machine casing is made detachable, which facilitates cleaning of the machine casing and replacement of components such as impellers and scraper silicone. The scraper component contacts the inner wall of the machine casing to achieve flexible scraping and sealing functions, which can better maintain the equipment to ensure its stable operation. It solves the problems of reduced material distribution efficiency and impeller jamming and machine burnout caused by the difficulty in cleaning and replacing parts of existing feeding feeders, thereby improving the reliability of equipment operation and the economic benefits of aquaculture.

[0019] Preferably, the driving component comprises: A speed reduction component, the body of which is fixedly connected to the housing, and the output end of which passes through the rotary component; An eccentric drive component, wherein the eccentric drive component body is fixedly connected to the deceleration component body, and the eccentric drive component is drive-connected to the deceleration component. The first seal is fitted with a second seal, and the output end of the deceleration component passes through the second seal.

[0020] By adopting the above technical solution, the eccentric drive component and the reduction component are connected by a transmission, which drives the reduction component to operate. The output end of the reduction component passes through the rotary distributor, thereby driving the distribution component to rotate. A second seal is embedded on the first seal, and the output end of the reduction component passes through the second seal, which can seal the output end of the reduction component. Together with the first seal, it ensures the long-term stable rotation of the impeller. Combining the above solutions, the overall system can achieve scraping and sealing during the feed distribution process. It can also adjust the material passage space and scraping effect according to the size of the shrimp feed particles. The first and second seals ensure the rotation of the impeller. The detachable release component and the scraping silicone structure enable convenient equipment maintenance. This solves the problems of reduced distribution efficiency and impeller jamming caused by the gap between the impeller and the casing being made of metal in existing feeders, as well as the corrosion and restart jamming problems of metal bearings in the seawater environment. This improves the reliability of equipment operation and the economic benefits of aquaculture.

[0021] Preferably, each end of the rotary component has a shaped portion that fits into the output end of the deceleration component.

[0022] By adopting the above technical solution, the problem of inconsistent hole diameters caused by different machining differences of different shafts can be adapted. Furthermore, when the connection gap between the impeller and the shaft increases after long-term use, the flexibility of the system can be improved by changing the installation direction.

[0023] Preferably, the deceleration component has a spacer portion located between the deceleration component body and the housing.

[0024] By adopting the above technical solution, a gap is set between the body of the reduction component and the housing, which can effectively reduce the dust accumulation at the connection between the reduction gearbox and the housing and improve the reliability of equipment operation.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By having the scraper contact the inner wall of the casing, flexible scraping and sealing are achieved, which solves the problem of feed scraps adhering, reduced material distribution efficiency, impeller jamming and machine burnout caused by the need to leave gaps between the impeller and the casing, which are made of hard materials. 2. The first seal replaces the traditional metal bearing, reducing the coefficient of friction and clearance, and is resistant to seawater corrosion. It requires no oiling maintenance and solves the problems of metal bearings being easily corroded in seawater environment and residual feed causing impeller to jam when restarting after equipment shutdown. 3. The casing is equipped with a detachable part, which enables the casing to be disassembled, making it easier to clean the casing and replace parts such as impellers and scrapers, thus solving the problem of difficult equipment maintenance. Attached Figure Description

[0026] Figure 1 This embodiment discloses an overall structural view of the feeder of a flexible closed-air shrimp feeder; Figure 2 This is an exploded view of a flexible closed-ventilation shrimp feeder feeder disclosed in this embodiment; Figure 3 This embodiment discloses a structural view of the material distribution component in the feeder of a flexible closed-ventilation shrimp feeder; Figure 4 This is a structural view of the scraper component in the feeder of a flexible closed-air shrimp feeder disclosed in this embodiment.

[0027] Explanation of reference numerals in the attached figures: 1. Housing; 11. Disengagement component; 2. Material separating component; 21. Rotating component; 210. Positioning part; 211. Irregular shape part; 22. Fixing component; 23. Limiting component; 3. Driving component; 31. Reduction component; 310. Spacing part; 32. Eccentric driving component; 4. Scraping component; 5. First connecting component; 6. First sealing component; 7. Second connecting component; 8. Second sealing component. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a flexible closed-air shrimp feeder feeder. See also... Figure 1 and Figure 2 It includes a housing 1, a material distribution component 2 and a drive component 3. The material distribution component 2 is rotatably installed inside the housing 1, and the drive component 3 is fixedly installed on the outer surface of the housing 1. One end of the material distribution component 2 is connected to the drive component 3 for transmission. The material distribution component 2 is provided with a scraper 4. The scraper 4 is elastic and contacts the inner wall of the housing 1.

[0030] Specifically, see Figure 2 and Figure 3The material separating component 2 includes a rotating separating component 21, a fixing component 22, and a limiting component 23. The rotating separating component 21 is rotatably mounted inside the housing 1, and one end is connected to the drive component 3 for transmission. The fixing component 22 is fixed to the rotating separating component 21. The limiting component 23 is detachably connected to the fixing component 22 through the first connecting component 5, and the scraping connection is located between the fixing component 22 and the limiting component 23. The rotating separating component 21 is provided with a positioning part 210, one end of the scraping component 4 is inserted into the positioning part 210, and one end of the limiting component 23 is also inserted into the positioning part 210.

[0031] In one embodiment, see Figure 3 and Figure 4 The rotary component 21 includes an impeller, with both ends of the impeller rotatably connected to the casing 1. The fixing component 22 includes a fixing plate, one end of which is welded to the impeller. The scraper component 4 includes scraping silicone, which is mounted on the fixing plate and has one end inserted into the positioning part 210. The first connecting component 5 includes a first bolt and a first nut. The limiting component 23 includes a limiting plate, with the first bolt passing through the fixing plate, the scraping silicone, and the limiting plate in sequence. The first nut is screwed into the first bolt to lock the scraping silicone and the limiting plate. The positioning part 210 includes a positioning groove for positioning the scraping silicone and the limiting plate. The silicone and the impeller are detachably connected using the first connecting component 5, allowing the silicone to be replaced every one to two years at a low cost.

[0032] By modifying the impeller and housing 1 from purely rigid materials to make each impeller blade a removable scraping silicone material, which contacts the inner wall of housing 1, flexible scraping and sealing are achieved. This solves the problem of gaps remaining in existing feeders where both the impeller and housing 1 are made of rigid (metal) materials. These gaps cause feed fragments to easily absorb moisture, become sticky, and adhere to the inner wall of the impeller housing. Long-term accumulation reduces feeding efficiency, causes impeller jamming and damage, and increases feed fragmentation. Furthermore, the characteristic of shrimp in shrimp ponds to only eat bottom-feeding feed further exacerbates the problems of poor feeding effect, decreased aquatic yield, and deteriorating water quality.

[0033] In another embodiment, the impeller structure of the swirling component 21 was optimized to better adapt to the feeding requirements of shrimp feed of different sizes. The number of impeller blades can be adjusted according to actual usage. When feeding larger shrimp feed particles, the number of blades is reduced to increase the material passage space; when feeding smaller shrimp feed particles, the number of blades is increased to improve the feeding accuracy. Simultaneously, multiple mounting holes are provided on the fixing plate, allowing the scraping silicone to connect to the fixing plate through different mounting holes, thereby changing the installation position of the scraping silicone on the impeller and further optimizing the scraping effect. The limiting plate has also been improved; its shape is designed to fit the edge contour of the impeller, which not only better restricts the position of the scraping silicone but also reduces friction between the limiting plate and the impeller, lowering energy consumption. Furthermore, the depth and width of the positioning groove have been adjusted accordingly to more accurately position the scraping silicone and the limiting plate, ensuring that the scraping silicone always maintains good contact with the inner wall of the casing 1 during the impeller rotation process, achieving stable flexible scraping and sealing, effectively avoiding the problem of feed fragments adhering, improving the working efficiency and feeding effect of the feeder, and ensuring the yield and water quality of aquaculture.

[0034] In this embodiment, at least six sets of fixing plates are provided, and the number of scraping silicone, limiting plates and positioning grooves are the same as the number of fixing plates.

[0035] Specifically, see Figure 2 and Figure 3 The housing 1 is provided with a first sealing element 6, which is fixedly installed inside the housing 1 and arranged along the depth direction of the housing 1; the first sealing element 6 includes at least two sets, and each end of the rotating part 21 is rotatably connected to at least one set of the first sealing element 6; the first sealing element 6 has elastic properties.

[0036] In one embodiment, the first sealing element 6 includes a nylon chuck arranged along the depth direction of the housing 1, with the longitudinal end of the scraping silicone material contacting a set of nylon chucks. Each end of the impeller passes through a set of nylon chucks and is rotatably connected to them. Both ends of the impeller are rotatably connected to the nylon chucks, and the silicone sheet and chucks are interference-fitted, replacing traditional metal bearings and effectively reducing the coefficient of friction and clearance. Furthermore, the nylon material is resistant to seawater corrosion, requiring no oiling maintenance and reducing maintenance costs.

[0037] This design solves the problem of existing pure metal impellers using metal bearings. After the equipment has been out of service for a period of time, residual feed from the previous use will generate grease and become damp upon restarting, causing the impeller (equipment) to seize up (stick). However, by using a nylon chuck, due to its low coefficient of friction and small gap with the impeller, residual feed will not affect the normal rotation of the impeller when restarting.

[0038] Specifically, see Figure 1 and Figure 2 The housing 1 is equipped with a detachment component 11, which is connected to the housing 1 via a second connecting component 7. The detachment component 11 includes a detachment shell, which is installed at the end of the housing 1 furthest from the connection end of the drive component 3. The second connecting component 7 consists of a second bolt and a second nut. The second bolt passes through the housing 1 and the detachment shell in sequence and is tightly connected to the second nut via threads. Furthermore, the second connecting component 7 has at least four sets to ensure a stable connection. By providing the detachment component 11 and the second connecting component 7, the housing 1 becomes detachable, facilitating cleaning of the housing 1 and replacement of components such as the impeller and scraper silicone.

[0039] Specifically, the drive component 3 includes a reduction gear 31 and an eccentric drive component 32. The body of the reduction gear 31 is fixedly connected to the housing 1, and its output end passes through the rotary distributor 21. The body of the eccentric drive component 32 is fixedly connected to the body of the reduction gear 31 and is connected to the reduction gear 31 via transmission. A second seal 8 is embedded in the first seal 6, and the output end of the reduction gear 31 passes through the second seal 8. In addition, the reduction gear 31 also has a spacer 310 located between the body of the reduction gear 31 and the housing 1.

[0040] The reduction gear unit 31 includes a reduction gearbox with an input end and an output end. The eccentric drive unit 32 includes an eccentric servo motor. The input end of the reduction gearbox is fixedly connected to the output shaft of the eccentric servo motor, and the central shaft of the impeller is fixedly connected to the output end of the reduction gearbox. The second seal 8 is made of a rubber ring, which is embedded in a nylon chuck, and the output end of the reduction gearbox passes through this rubber ring.

[0041] The spacer section 310 includes spacer plates and spacer columns. The spacer columns are integrally formed with the reduction gearbox body and are provided in at least four sets. The spacer plates are installed at the connection between the reduction gearbox body and the housing 1 to further increase the distance between the reduction gearbox and the housing 1 and reduce dust accumulation. In addition, there is a gap between the spacer columns and the spacer plates to further reduce dust accumulation.

[0042] Specifically, see Figure 2 and Figure 3 Each end of the rotary component 21 is provided with a shaped part 211, which fits tightly with the output end of the deceleration component 31.

[0043] The irregularly shaped section 211 includes an irregularly shaped hole that precisely matches the output end of the reduction gearbox. Irregularly shaped holes are provided in the axial direction of the impeller at each end. This serves two purposes: first, it accommodates inconsistencies in hole diameter matching caused by differences in machining of different shafts; second, it addresses the possibility of increased clearance between the impeller and shaft after long-term use, allowing for improved system flexibility by changing the installation direction.

[0044] The working principle of the flexible closed-air shrimp feeder feeder of this application is as follows: The eccentric servo motor (eccentric drive component 32) in the drive component 3 of this technology outputs power to drive the connected reduction gearbox (reduction component 31) to rotate. The output end of the reduction gearbox achieves precise transmission with the impeller through the irregular hole at the end of the rotary component 21 (impeller), thereby driving the impeller to rotate stably within the housing 1. A fixing plate (fixing component 22) is fixed on the impeller. The scraping silicone (scraping component 4) is clamped between the fixing plate and the limiting plate (limiting component 23) and locked by the first bolt and the first nut (first connecting component 5). One end of the scraping silicone is inserted into the positioning groove (positioning part 210) of the impeller for precise positioning. When the impeller rotates, it comes into close contact with the inner wall of the housing 1, forming a flexible scraping action. Both ends of the impeller are respectively inserted into nylon chucks (first sealing component 6) arranged along the depth direction inside the housing 1 and rotate with the nylon chucks. The connecting end of the scraping silicone material in the longitudinal direction simultaneously contacts the nylon chuck. The rubber ring (second seal 8) embedded in the nylon chuck seals the output end of the reduction gearbox. The reduction gearbox and the housing 1 are kept at a distance by a partition plate and a partition column (partition 310) to reduce powder accumulation. The end of the housing 1 away from the drive component 3 is connected to the detachment shell (detachment component 11) by a second bolt and a second nut (second connecting component 7). The housing 1 can be disassembled by removing the second connecting component 7, which facilitates internal cleaning and component replacement.

[0045] This technical solution achieves several functions: First, by contacting the flexible scraping silicone with the inner wall of the casing 1, it completes the scraping and sealing during the feed distribution process; second, the material passage space can be adjusted by increasing or decreasing the number of impeller blades according to the size of the shrimp feed particles, or the position of the scraping silicone can be changed by changing different mounting holes on the fixed plate, thereby optimizing the distribution accuracy and scraping effect; third, the cooperation of the nylon chuck and the rubber ring ensures the long-term stable rotation of the impeller; and fourth, the detachable detachable part 11 and the scraping silicone structure enable convenient equipment maintenance.

[0046] The advantages of this technical solution are as follows: the scraping silicone uses a bolt and nut detachable connection, which is low-cost and easy to operate within a 1-2 year replacement cycle; the nylon chuck replaces the traditional metal bearing, which is resistant to seawater acid and alkali corrosion and does not require regular oiling maintenance, while reducing the friction coefficient and clearance between the impeller and the housing 1; the irregular hole design can adapt to shaft machining errors, and when the clearance between the impeller and the shaft increases, the installation direction can be changed to continue using it, improving the adaptability flexibility; the spacer 310 effectively reduces powder accumulation at the connection between the reduction gearbox and the housing 1, the limiting plate adapts to the impeller edge contour to reduce friction energy consumption, and the positioning groove ensures that the scraping silicone always maintains good contact with the inner wall of the housing 1.

[0047] This solution addresses the problems of feed debris adhesion, reduced feed distribution efficiency, and impeller jamming / burnout caused by gaps between the hard (metal) impeller and the casing 1. It also solves the problems of metal bearings being easily corroded in seawater environments and impeller jamming due to residual feed after equipment shutdown. Furthermore, it addresses the issues of poor shaft compatibility and high maintenance difficulty. In addition, it improves the problems of poor feeding effect, reduced aquatic product yield, and deteriorating water quality in shrimp ponds where shrimp only feed on bottom-feeding feed, significantly enhancing equipment reliability and aquaculture economic benefits.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A flexible dosing hopper for a dosing machine for dosing air-entraining admixture, characterized in that: It includes a housing, a material distribution component, and a drive component. The material distribution component is rotatably installed inside the housing, and the drive component is fixedly installed on the outer surface of the housing. One end of the material distribution component is connected to the drive component for transmission. The material distribution component is provided with a scraper, which is elastic and contacts the inner wall of the housing.

2. A flexible closed-loop shrimp feed delivery machine feeder according to claim 1, characterized in that: The material distribution component includes: A rotary separator is rotatably mounted inside the housing, and one end of it is connected to the drive component for transmission. A fixing component, which is fixed to the rotating component; The limiting component is detachably connected to the fixing component via a first connecting component, and the scraping connection is located between the fixing component and the limiting component.

3. The feeder for a flexible closed-ventilation shrimp feeder according to claim 2, characterized in that: The rotary part has a positioning part, and one end of the scraper is inserted into the positioning part.

4. The feeder for a flexible closed-ventilation shrimp feeder according to claim 2, characterized in that: The housing is provided with a first sealing element, which is fixedly installed inside the housing and arranged along the depth direction of the housing; at least two sets of the first sealing element are provided, and each end of the rotary component is rotatably connected to at least one set of the first sealing element. The first seal is elastic.

5. The feeder for a flexible closed-ventilation shrimp feeder according to claim 1, characterized in that: The housing has a detachment component, which is connected to the housing via a second connecting component.

6. The feeder for a flexible closed-ventilation shrimp feeder according to claim 4, characterized in that: The driving component includes: A speed reduction component, the body of which is fixedly connected to the housing, and the output end of which passes through the rotary component; An eccentric drive component, wherein the eccentric drive component body is fixedly connected to the deceleration component body, and the eccentric drive component is drive-connected to the deceleration component. The first seal is fitted with a second seal, and the output end of the deceleration component passes through the second seal.

7. The feeder for a flexible closed-ventilation shrimp feeder according to claim 6, characterized in that: Each end of the rotary component has a shaped portion that fits into the output end of the deceleration component.

8. The feeder for a flexible closed-ventilation shrimp feeder according to claim 6, characterized in that: The deceleration component has a gap, which is located between the deceleration component body and the housing.

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