A bait feeding device for macrobrachium rosenbergii breeding
By designing a feed dispensing device for giant freshwater prawn breeding, the problem of high labor intensity and low efficiency of traditional manual feeding is solved by utilizing the height difference of the feeding port and the power conveying of the feeding unit, thus achieving efficient and uniform feed dispensing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO YONGGANG AQUATIC SEED TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-29
AI Technical Summary
The traditional method of manually spreading feed for giant freshwater prawns is labor-intensive and inefficient.
Design a bait dispensing device that includes a storage bin, a spreading bin, a feeding section, and a discharging section. By utilizing the height difference of the spreading nozzle and the power conveying of the feeding section, the bait can be evenly scattered in different ranges.
It reduced labor intensity, improved bait placement efficiency, expanded the scattering range, and ensured the uniform distribution of bait.
Smart Images

Figure CN224291023U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of aquaculture technology, and in particular to a feed delivery device for raising giant freshwater prawns. Background Technology
[0002] The giant freshwater prawn (Macrobrachium rosenbergii) is large and robust, being the largest of the prawn species. It has a wide diet, is relatively disease-free, and easy to survive, making it an excellent species for aquaculture. Due to its large size, delicious meat, rapid growth, and high nutritional value, it can be sold as a live shrimp, thus having high economic value.
[0003] During the seedling stage of giant freshwater prawns, a large amount of feed needs to be provided. Traditional feed distribution is done by manually scattering the feed, which is labor-intensive and relatively inefficient. Summary of the Invention
[0004] The purpose of this application is to provide a feed delivery device for raising giant freshwater prawns.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a feed dispensing device for raising giant freshwater prawns, comprising a storage bin, a spreading bin, a feeding section, and a discharging section. The spreading bin has multiple spreading ports distributed at different heights. The discharging section is located at the bottom of the storage bin and is adapted to quantitatively dispense materials into the spreading bin. The feeding section is adapted to power-convey the materials entering the spreading bin so that the materials are scattered and discharged at different spreading ports.
[0006] As a preferred embodiment, the outlet end of the feeding bin is provided with multiple sets of feeding troughs arranged sequentially and closely in the horizontal direction. The height of the multiple troughs in the same set of feeding troughs increases or decreases sequentially.
[0007] As a preferred embodiment, the bottom of the multiple troughs in each group of the dispensing troughs is provided with pads of different slopes. The lowest point of the pads is at the same height as the bottom of the dispensing trough. The pads reduce the height of the dispensing troughs, and different pads result in different heights of the dispensing troughs.
[0008] Preferably, the top surface of the pad is a sloping plane or a sloping arc surface.
[0009] As a preferred embodiment, the feeding port is located on the side wall of the feeding bin at a position corresponding to the outlet height of the feeding trough, and the diameter of the feeding port is larger than the diameter of the largest particle in the bait.
[0010] As a preferred embodiment, the inner end of the material dispensing port is smoothly transitioned to the outlet end of the dispensing trough, and the outer end of the material dispensing port has at least one horizontal stroke.
[0011] As a preferred embodiment, the feeding section includes a rotatably configured feeding impeller and a fan-shaped feeding trough formed at the bottom of the storage bin. The bottom of the feeding impeller is integrally formed with a baffle part, and the baffle part is provided with a feeding port corresponding to the fan-shaped feeding trough. When the baffle part and the fan-shaped feeding trough correspond, the fan-shaped feeding trough is blocked. When the baffle part and the fan-shaped feeding trough do not correspond, the fan-shaped feeding trough is opened to feed material.
[0012] As a preferred embodiment, the feeding section includes a feeding plate that is reciprocated laterally and a feeding port formed at the bottom of the storage bin, wherein the feeding plate blocks or opens the feeding port when it reciprocates.
[0013] As a preferred embodiment, the feeding section is configured as a blower, the air duct of the blower is located inside the spreading bin, and the blowing direction of the blower is consistent with the spreading direction of the spreading bin.
[0014] The feeding section is a pusher plate, which reciprocates to continuously feed material at the outlet of the feeding bin.
[0015] Compared with the prior art, the beneficial effects of this application are as follows:
[0016] Depending on the height of the feeding nozzle, the feeding section ensures that the bait has a certain initial velocity when it leaves the feeding chamber. This allows the bait to be scattered over a larger area each time it is discharged, increasing the scattering range of the bait after each discharge. Attached Figure Description
[0017] Figure 1 This is a front view of the overall structure according to one embodiment of this application.
[0018] Figure 2 yes Figure 1 A cross-sectional view of the middle section of the structure at the feed bin.
[0019] Figure 3 It is a projected view of the feed container on one side of the feed inlet.
[0020] Figure 4 This is a partial structural diagram of the inside of the feed container.
[0021] Figure 5 This is a schematic diagram of the feeding section in state one.
[0022] Figure 6 yes Figure 5 A schematic diagram of the material feeding section in state two.
[0023] In the diagram: 1. Feeding section; 2. Spreading bin; 3. Storage bin; 4. Spreading port; 5. Liner; 6. Cylinder; 7. Discharge plate; 8. Baffle section; 9. Discharge impeller; 10. Fan-shaped discharge chute. Detailed Implementation
[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0027] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0028] Example:
[0029] Reference Figures 1 to 6This application proposes a feed dispensing device for giant freshwater prawn (Macrobrachium rosenbergii) seedling rearing, comprising a storage bin 3, a spreading bin 2, a feeding section 1, and a discharging section. The discharging section is located at the bottom of the storage bin 3 and is adapted to quantitatively dispense feed into the spreading bin 2. The spreading bin 2 has multiple spreading ports 4 distributed at varying heights. The feeding section 1 is adapted to power-convey the material entering the spreading bin 2, so that the material is scattered out from different spreading ports 4. Depending on the height of the spreading ports 4, the feeding section 1 ensures that the feed has a certain initial velocity when leaving the spreading bin 2. With the same initial velocity, the greater the height at which the feed leaves, the farther the corresponding scattering distance. Therefore, feed at different heights can be scattered to different distances, thereby achieving a larger scattering range for the feed each time it is dispensed, increasing the scattering area after the feed is distributed.
[0030] At the outlet end of the feeding bin 2, multiple sets of feeding troughs are arranged horizontally and closely together. Within each set, the height of the troughs increases or decreases sequentially. To achieve feeding ports 4 at different heights, pads 5 with varying slopes are installed at the bottom of the troughs within each set. The lowest point of the pads 5 is at the same height as the bottom of the feeding trough. The pads 5 reduce the height of the feeding troughs, and different pads 5 result in different heights for different feeding troughs. The top surface of the pads 5 is either a sloping plane or a sloping arc. Due to the function of the pads 5, the entire feed from the feeding position to the feeding port 4 is upward. When the height of the pads 5 is 0 (i.e., not set), the bait falls freely horizontally after being discharged, resulting in the closest landing point; the higher the feed, the farther the landing point. The slope of the pads 5 represents the final height of the feeding port. Obviously, the greater the slope of the pads 5, the greater the final height of the feeding port 4; the smaller the slope of the pads 5, the smaller the final height of the feeding port 4. Therefore, the final height of the feeding port 4 can be easily controlled by the pads 5. The inclined plane or curved surface of the liner 5 is designed to allow the bait to move smoothly. Of course, when the height of the liner 5 is increased, it will have some impact on the initial velocity of the bait outlet. This impact comes from the increase in gravitational potential energy on the one hand, and from the friction with the liner 5 and the inner wall of the tank on the other hand. However, as long as the initial velocity of the bait is relatively high, this impact is relatively small.
[0031] like Figure 2 , Figure 3 As shown, there are three groups of dispensing slots, and each group has three slots. Figure 2 As shown, the slope of the pad 5 increases sequentially from left to right, corresponding to a sequential increase in the height of the feeding inlet 4 from left to right. When the initial velocity of the bait is constant during discharge, if all bait is discharged straight forward, the corresponding feeding distance from left to right in each group of feeding troughs will increase. The feeding troughs achieve flow diversion through vertically placed baffles. After the bait enters the feeding trough 2 from the storage bin 3, the fan... Figure 2 The bait is blown from the left to the right, causing it to move and be distributed into different feeding slots as it passes through the baffles, and finally scattered over different areas.
[0032] The feeding port 4 is located on the side wall of the feeding bin 2 at the outlet height of the feeding trough, and the diameter of the feeding port 4 is larger than the diameter of the largest bait particle. The inner end of the feeding port 4 smoothly transitions to the outlet end of the feeding trough, and the outer end of the feeding port 4 has at least one horizontal stroke. The smooth transition reduces frictional resistance as the bait passes through, and the horizontal stroke ensures that the direction of bait discharge remains relatively consistent. When pneumatic feeding is used, such as with a blower, the initial velocity of the material at the outlet is relatively consistent. The horizontal stroke helps to ensure even bait distribution, allowing for relatively distinct distribution at different heights. For example, if the outlet end of the feeding port 4 is pointing downwards or upwards at a relatively high position, its initial velocity is not horizontal, thus changing the landing point accordingly.
[0033] The material feeding section of this application can be selected from a variety of material feeding structures. Two preferred material feeding section specific schemes are proposed below.
[0034] The first type of feeding unit includes a rotatable feeding impeller 9 and a fan-shaped feeding trough 10 formed at the bottom of the storage bin 3. The bottom of the feeding impeller 9 is integrally formed with a baffle 8, which has a corresponding feeding opening for the fan-shaped feeding trough 10. Figure 5 , Figure 6 When the baffle 8 and the fan-shaped discharge chute 10 correspond, and the fan-shaped discharge chute 10 is blocked, see [the relevant documentation]. Figure 5 When the material stop 8 and the fan-shaped feeding chute 10 do not correspond, the fan-shaped feeding chute 10 opens to feed material. However, if... Figure 6 The middle baffle 8 blocks the fan-shaped feeding chute 10, thus stopping the feeding. The feeding impeller 9 agitates the bait at the bottom to prevent it from getting stuck.
[0035] The second type of feeding section includes a feeding plate 7 that is reciprocating laterally and a feeding port formed at the bottom of the storage bin 3. See [link to relevant documentation]. Figure 4 The feeding plate 7 blocks or opens the feeding port during its reciprocating motion. This feeding part can be driven by a cylinder 6, etc., to open and close for feeding and to stop feeding.
[0036] The feeding section 1 can also be implemented in various ways.
[0037] The first feeding unit 1 is configured as a blower, with the blower's duct located within the spreading bin 2, and the blower's airflow direction aligned with the spreading direction of the spreading bin 2. The blower is the preferred feeding unit 1 configuration for this dispensing equipment. The continuous operation of the blower ensures that the bait has a relatively consistent initial velocity at the outlet 4. This minimizes energy loss due to the varying strokes of the spreading nozzles 4 at different elevations, ensuring that the bait falls along a relatively fixed, preset path after being spread. (Refer to...) Figure 1 , Figure 2 It uses a blower for feeding materials.
[0038] The second type of feeding unit 1 is a pusher plate. The pusher plate reciprocates to continuously feed material at the outlet end of the feeding bin 2. The pusher plate needs to have a relatively high speed when feeding the bait to ensure a high initial velocity. The pusher plate feeding is not shown in the attached diagram, but its principle is easy to understand.
[0039] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A feed dispensing device for raising giant freshwater prawns, characterized in that, It includes a storage bin, a spreading bin, a feeding section, and a discharging section. The spreading bin has multiple spreading ports distributed at different heights. The discharging section is located at the bottom of the storage bin and is adapted to feed bait into the spreading bin. The feeding section is adapted to power-convey the material entering the spreading bin so that the material is scattered and discharged from different spreading ports.
2. The feed dispensing device for raising giant freshwater prawns as described in claim 1, characterized in that, The outlet end of the feeding bin has multiple sets of feeding slots arranged in close proximity in the horizontal direction. The height of the multiple slots in the same set increases or decreases sequentially.
3. The feed dispensing device for raising giant freshwater prawns as described in claim 2, characterized in that, The bottom of the multiple troughs in each group of the dispensing troughs is provided with pads of different slopes. The lowest point of the pads is at the same height as the bottom of the dispensing trough. The pads reduce the height of the dispensing troughs. Different pads result in different heights of the dispensing troughs.
4. The feed dispensing device for raising giant freshwater prawns as described in claim 3, characterized in that, The top surface of the pad is a sloping plane or a sloping arc surface.
5. The feed dispensing device for raising giant freshwater prawns as described in claim 3, characterized in that, The feeding port is located on the side wall of the feeding bin at a position corresponding to the outlet height of the feeding trough, and the diameter of the feeding port is larger than the diameter of the largest particle in the bait.
6. The feed dispensing device for raising giant freshwater prawns as described in claim 5, characterized in that, The inner end of the material dispensing port is smoothly transitioned to the outlet end of the dispensing trough, and the outer end of the material dispensing port has at least one horizontal stroke.
7. The feed dispensing device for raising giant freshwater prawns as described in claim 1, characterized in that, The feeding section includes a rotatable feeding impeller and a fan-shaped feeding trough formed at the bottom of the storage bin. The bottom of the feeding impeller is integrally formed with a baffle part, and the baffle part is provided with a feeding port corresponding to the fan-shaped feeding trough. When the baffle part and the fan-shaped feeding trough correspond, the fan-shaped feeding trough is blocked. When the baffle part and the fan-shaped feeding trough do not correspond, the fan-shaped feeding trough is opened to feed material.
8. The feed dispensing device for raising giant freshwater prawns as described in claim 1, characterized in that, The feeding section includes a feeding plate that moves back and forth laterally and a feeding port formed at the bottom of the storage bin. When the feeding plate moves back and forth, it blocks or opens the feeding port.
9. The feed dispensing device for raising giant freshwater prawns as described in claim 1 or 2, characterized in that, The feeding section is configured as a blower, the blower's air duct is located inside the spreading bin, and the blower's blowing direction is consistent with the spreading direction of the spreading bin.
10. The feed dispensing device for raising giant freshwater prawns as described in claim 1 or 2, characterized in that, The feeding section is a pusher plate, which reciprocates to continuously feed material at the outlet of the feeding bin.