A frozen aquatic feed throwing device
Patent Information
- Application Number
- CN202521837208.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-28
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-08-28
AI Technical Summary
When manually throwing frozen aquatic feed, it is difficult to control the distribution precisely, resulting in some areas accumulating while others are insufficient. Furthermore, large pieces of feed need to be manually thawed and thrown in batches, which is a tedious and time-consuming process.
Design a frozen aquatic feed throwing device that includes a crushing component and a throwing component. The crushing component cuts large pieces of feed into small pieces, and centrifugal force is used to throw the refined feed over a long distance to achieve automated and precise feeding.
It enables automated and precise feeding of frozen aquatic feed, reduces labor intensity, avoids feed accumulation and water quality deterioration, and lowers maintenance difficulty, making it suitable for both factory and pond aquaculture.
Smart Images

Figure CN224924431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feed technology, specifically to a frozen aquatic feed throwing device. Background Technology
[0002] Feed is a specially formulated mixture designed to meet the needs of animal growth, reproduction, and production. It typically contains nutrients such as protein, energy, vitamins, and minerals. It is a basic material for animal husbandry, aquaculture, and pet breeding. According to animal type, it can be divided into livestock and poultry feed, aquatic feed, pet food, and special feed. Frozen feed is feed preserved through low-temperature freezing technology. It is usually made from fresh raw materials (such as fish, shrimp, offal, vegetables, etc.) or processed wet feed through rapid freezing. It is rich in protein, trace elements, and astaxanthin, which can promote rapid weight gain and bright color in fish.
[0003] When feeding frozen feed, manual throwing is usually used. Manual throwing makes it difficult to accurately control the distribution of feed, which can easily lead to feed accumulation in some areas of the pond while other areas have insufficient feed. At the same time, large pieces of frozen feed need to be thawed, broken or cut manually, and then thrown in batches, which is a cumbersome and time-consuming process. Therefore, a frozen aquatic feed throwing device is proposed to solve the above problems. Utility Model Content
[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a frozen aquatic feed throwing device, including a base, an inclined support frame welded on the base, and an inclined shell between the support frame and the base. The shell has a feed inlet at a higher position and a discharge outlet at a lower position at its two ends. A crushing component is provided inside the shell for refining large-volume frozen feed, and a throwing component is provided inside the shell at the discharge outlet for throwing the refined frozen feed over a distance.
[0005] Furthermore, a baffle located at the feed inlet is rotatably connected to the housing, a support plate is provided at the feed inlet of the housing, and one end of the support plate abuts against one end of the baffle. A discharge pipe is connected to the discharge outlet of the housing, and the discharge pipe is set at an angle to the housing, with the angle between the discharge pipe and the housing being between ° and °.
[0006] Furthermore, the crushing assembly includes a rotating shaft, which is rotatably connected to the housing via a bearing seat, and a roller is provided on the outside of the rotating shaft, with a plurality of fixed cutter heads arranged in a spiral interval on the outside of the roller.
[0007] Furthermore, the throwing assembly includes a connecting shaft, which is rotatably connected to the housing via a bearing seat and located below the crushing assembly. Two symmetrically arranged throwing discs are welded to the outer surface of the connecting shaft, and a reinforcing rib is welded between the two throwing discs.
[0008] Furthermore, it includes a drive assembly for driving the crushing assembly and the throwing assembly. The drive assembly includes a stepper motor fixedly mounted on a support frame. The stepper motor is connected to the rotating shaft via a first pulley drive mechanism. The rotating shaft is connected to the connecting shaft via a second pulley drive mechanism. A protective cover is provided on one side of the housing, located outside the first pulley drive mechanism and the second pulley drive mechanism.
[0009] Furthermore, the housing is provided with a window, and a movable door panel located at the window is hinged to the housing via a hinge.
[0010] The beneficial effects of this utility model are as follows: This utility model, through its built-in crushing component, can automatically cut large frozen feed pieces into smaller pieces before feeding, avoiding the tedious manual breaking operation. It also reduces swallowing difficulties or digestive burdens on fish caused by excessively large feed volumes. Furthermore, it is equipped with a throwing component that uses centrifugal force to throw the refined feed a long distance onto the water surface, covering a large area and reducing water quality deterioration caused by localized feed accumulation. Simultaneously, the shell sidewall is equipped with a hinged movable door panel, which can be quickly opened to clean residual feed or inspect components such as the cutting head, reducing maintenance costs. Compared with existing technologies, this integrated "crushing-throwing-control" system achieves automation, precision, and efficiency in feeding frozen aquatic feed, effectively solving core problems such as poor uniformity, low efficiency, and high labor intensity associated with manual throwing. At the same time, the modular structure reduces maintenance difficulty, making it suitable for various scenarios such as factory farming, pond farming, and ornamental fish farming, with significant economic benefits and promotional value. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram showing the connection between the crushing component, the throwing component, and the driving component of this utility model.
[0012] The components include: 1. Base; 2. Support frame; 3. Shell; 4. Crushing assembly; 41. Rotating shaft; 42. Drum; 43. Fixed cutter head; 5. Throwing assembly; 51. Connecting shaft; 52. Throwing disc; 53. Reinforcing rib; 6. Baffle; 7. Support plate; 8. Discharge pipe; 9. Drive assembly; 91. Stepper motor; 92. First belt pulley transmission mechanism; 93. Second belt pulley transmission mechanism; 94. Protective cover; 10. Movable door panel. Detailed Implementation
[0013] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0014] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] In the embodiments, by Figure 1-2 Provided is a frozen aquatic feed throwing device, comprising a base 1, an inclined support frame 2 welded to the base 1, and an inclined housing 3 disposed between the support frame 2 and the base 1. The housing 3 has a feed inlet at a higher position and a discharge outlet at a lower position at its two ends. A crushing component 4 is disposed inside the housing 3 for crushing large volumes of frozen feed. A throwing component 5 located at the discharge outlet is disposed inside the housing 3 for throwing the crushed frozen feed over a distance. The housing 3 has a high-level feed inlet and a low-level discharge outlet at its two ends. The feed inlet utilizes gravity to automatically slide frozen feed into the housing 3 without the need for additional power. After entering the housing 3, the feed first comes into contact with the crushing component 4. Under the rotational cutting of the fixed cutter head 43, the feed is crushed into small pieces of 0.5-3cm, solving the problem of having to manually break large pieces of frozen feed. At the same time, the spiral structure guides the feed towards the discharge port. The refined feed slides to the throwing component 5 at the discharge port. After falling into the throwing plate 52, the feed is generated by the high-speed rotation of the connecting shaft 51 and centrifugal force, and is thrown to the water surface in a fan-shaped trajectory through the discharge pipe 8.
[0017] Reference Figure 1-2The housing 3 is rotatably connected to a baffle 6 located at the feed inlet. A support plate 7 is provided at the feed inlet of the housing 3, and one end of the support plate 7 abuts against one end of the baffle 6. A discharge pipe 8 is connected to the discharge outlet of the housing 3, and the discharge pipe 8 is set at an angle to the housing 3, with the angle between the discharge pipe 8 and the housing 3 being between 90° and 120°. With the above structural design, when frozen feed is fed into the inlet of the shell 3, the weight of the feed presses the baffle 6, causing it to rotate downwards around the axis of rotation and open. The feed slides smoothly into the interior of the shell 3. After feeding is completed, the baffle 6 automatically rebounds due to its own weight and re-engages with the support plate 7 to close the inlet. The contact structure between the support plate 7 and the baffle 6 forms a one-way channel, preventing feed or external debris (such as rainwater or insects) inside the shell 3 from flowing back or intruding from the inlet, thus ensuring the cleanliness of the equipment interior and the stability of its operation.
[0018] Reference Figure 1-2 The crushing component 4 includes a rotating shaft 41, which is rotatably connected to the housing 3 through a bearing seat. A roller 42 is provided on the outside of the rotating shaft 41, and a number of fixed cutter heads 43 arranged in a spiral interval are provided on the outside of the roller 42. With the above structural setup, the rotating shaft 41 is fixed inside the housing 3 via a bearing seat and driven by a stepper motor 91. When a large volume of frozen feed enters the housing 3, it collides violently with the rotating fixed cutter head 43. The sharp edge of the fixed cutter head 43 cuts and tears the feed, breaking it into small pieces with a particle size of 0.5-3cm. This solves the problem that large pieces of feed easily clog the discharge port and affect the uniformity of feeding. The fixed cutter heads 43 on the outside of the roller 42 are arranged in a spiral interval to form a continuous spiral cutting surface. During the rotation, the spirally arranged fixed cutter heads 43 not only cut the feed but also generate axial thrust on the broken feed. The feed moves along the spiral direction (i.e., the axial direction of the rotating shaft 41) towards the lower discharge port of the housing 3, preventing the feed from accumulating or flowing back inside the housing 3.
[0019] Reference Figure 1-2 The material throwing assembly 5 includes a connecting shaft 51, which is rotatably connected to the housing 3 through a bearing seat and located below the crushing assembly 4. Two symmetrically arranged material throwing discs 52 are welded to the outer surface of the connecting shaft 51, and a reinforcing rib 53 is welded between the two material throwing discs 52. With the above structural design, when the crushed frozen feed falls into the throwing disc 52, the throwing disc 52, which rotates synchronously with the connecting shaft 51, applies centrifugal force to the feed, causing it to accelerate outward along the radial direction of the throwing disc 52, and finally be ejected at high speed from the discharge port of the shell 3, forming a parabolic trajectory. The throwing distance can reach 5-15 meters, covering a large area of aquaculture water surface. The two throwing discs 52 are symmetrically arranged, which reduces the vibration when the connecting shaft 51 rotates, ensures the stability of equipment operation, reduces noise and mechanical wear, and the two discs alternately contact the feed, avoiding the throwing blind zone that may occur with a single disc, making the feed distribution more uniform. The reinforcing ribs 53 effectively disperse the impact force of the feed on the throwing disc 52 during throwing, preventing the throwing disc 52 from deforming or breaking under high-speed rotation, and extending its service life.
[0020] Reference Figure 1-2 The device includes a drive assembly 9 for driving the crushing assembly 4 and the throwing assembly 5. The drive assembly 9 includes a stepper motor 91 fixedly mounted on the support frame 2. The stepper motor 91 is connected to the rotating shaft 41 through a first belt pulley transmission mechanism 92. The rotating shaft 41 is connected to the connecting shaft 51 through a second belt pulley transmission mechanism 93. A protective cover 94 is provided on one side of the housing 3 outside the first belt pulley transmission mechanism 92 and the second belt pulley transmission mechanism 93. With the above structural configuration, the stepper motor 91 serves as the drive source, driving the rotation of the rotating shaft 41 and the connecting shaft 51 through the first belt pulley transmission mechanism 92 and the second belt pulley transmission mechanism 93 respectively. The protective cover 94 prevents the fine feed particles after crushing from seeping into the belt groove, avoiding jamming or wear, and at the same time preventing contact with rotating parts during operation, thus improving safety.
[0021] Reference Figure 1-2 The housing 3 has a window, and a movable door panel 10 located at the window is hinged to the housing 3 via a hinge. With the above structural design, the movable door panel 10 can be manually pushed to rotate outward around the hinge, allowing direct observation of the wear condition of the crushing component 4 and the throwing component 5, replacement of easily worn parts such as the fixed cutter head 43, and removal of feed residue or ice crystals adhering to the inner wall of the housing 3 to prevent blockage or corrosion. Furthermore, a rubber sealing strip is embedded in the contact surface between the movable door panel 10 and the housing 3. When closed, the sealing strip is compressed to form an elastic sealing layer, effectively blocking the flow. Finally, the housing 3 is equipped with a latch for fixing the movable door panel 10 to prevent the movable door panel 10 from moving during equipment operation.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A frozen aquatic feed throwing device, comprising a base (1), characterized in that: The base (1) is welded with an inclined support frame (2), and an inclined shell (3) is provided between the support frame (2) and the base (1). The two ends of the shell (3) are respectively provided with a feed inlet at a high position and a discharge outlet at a low position. The shell (3) is provided with a crushing component (4) for refining large-volume frozen feed. The shell (3) is provided with a throwing component (5) located at the discharge outlet for throwing the refined frozen feed over a distance.
2. The frozen aquatic feed throwing device according to claim 1, characterized in that: A baffle (6) located at the feed inlet is rotatably connected to the housing (3). A support plate (7) is provided at the feed inlet of the housing (3), and one end of the support plate (7) abuts against one end of the baffle (6). A discharge pipe (8) is connected to the discharge outlet of the housing (3), and the discharge pipe (8) is set at an angle to the housing (3), and the angle between the discharge pipe (8) and the housing (3) is between 90° and 120°.
3. The frozen aquatic feed throwing device according to claim 1, characterized in that: The crushing component (4) includes a rotating shaft (41), which is rotatably connected to the housing (3) through a bearing seat, and a roller (42) is provided on the outside of the rotating shaft (41), and a number of fixed cutter heads (43) arranged in a spiral interval are provided on the outside of the roller (42).
4. The frozen aquatic feed throwing device according to claim 1, characterized in that: The throwing assembly (5) includes a connecting shaft (51), which is rotatably connected to the housing (3) via a bearing seat and located below the crushing assembly (4). Two symmetrically arranged throwing discs (52) are welded to the outer surface of the connecting shaft (51), and a reinforcing rib (53) is welded between the two throwing discs (52).
5. The frozen aquatic feed throwing device according to claim 3, characterized in that: The device includes a drive assembly (9) for driving the crushing assembly (4) and the throwing assembly (5). The drive assembly (9) includes a stepper motor (91) fixedly mounted on the support frame (2). The stepper motor (91) is connected to the rotating shaft (41) via a first pulley drive mechanism (92). The rotating shaft (41) is connected to the connecting shaft (51) via a second pulley drive mechanism (93). A protective cover (94) is provided on one side of the housing (3) outside the first pulley drive mechanism (92) and the second pulley drive mechanism (93).
6. The frozen aquatic feed throwing device according to claim 1, characterized in that: The housing (3) is provided with a window, and the housing (3) is hinged to a movable door panel (10) located at the window.
