Medicine feed feeding device for animal husbandry and veterinary medicine
By designing reciprocating drive components and cleaning components, the problem of wet feed blockage was solved, enabling automated feeding and uniform mixing of livestock and veterinary medicines in the feeding device. This reduced energy consumption and structural complexity, and improved the reliability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-21
- Publication Date
- 2026-04-14
AI Technical Summary
Existing livestock and veterinary drug dispensing devices tend to stick and clump near the discharge port after dry feed is mixed with liquid due to poor viscosity and flowability, leading to blockages, increased labor intensity and safety hazards, and existing solutions increase equipment energy consumption and structural complexity.
A reciprocating drive assembly consisting of a turntable, eccentric shaft, connecting rod, and piston pump provides stable power. A spring and stop sealing structure is installed in the water spray pipe to prevent liquid leakage. A cleaning assembly is installed in the feed trough to drive the scraper to rotate and unclog the discharge pipe using the weight of the feed. The mixing and liquid spraying are driven by the same motor and rotate synchronously.
It achieves uniform mixing and automated feeding of wet feed, reduces energy consumption and structural complexity, improves feeding reliability and automation level, and avoids equipment blockage and safety hazards.
Smart Images

Figure CN121844970A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of livestock breeding equipment technology, specifically to a livestock and veterinary medicine and feed dispensing device. Background Technology
[0002] In modern livestock farming, to ensure the healthy growth and disease prevention of livestock, it is often necessary to mix liquid medications, nutrient solutions, or water with dry feed to create wet feed before feeding. This feeding method not only improves the palatability of the feed but also ensures that the livestock ingest medications or nutrients evenly. Therefore, automated equipment that integrates mixing and feeding functions is widely used in livestock farms.
[0003] Existing feeding devices typically include a feed tank for holding and mixing feed, and a spraying system for adding liquids. However, in actual use, these devices still have some shortcomings. When dry feed is mixed with liquid, especially when the proportion of liquid added is high or some feeds are inherently viscous, the mixed wet feed is prone to sticking, clumping, or even forming a "feed arch" near the discharge port when discharged from the bottom of the feed tank due to its viscosity and poor flowability, resulting in poor discharge or complete blockage.
[0004] To solve the blockage problem, farmers often need to intervene manually frequently, such as using tools to pry open the blocked material. This not only greatly increases labor intensity and interrupts the continuity of automated feeding, but also may pose safety hazards. Although some equipment has attempted to introduce vibrating motors or independent unblocking mechanisms to improve the smoothness of feeding, these solutions usually increase the overall energy consumption and mechanical complexity of the equipment, raising manufacturing costs and the difficulty of later maintenance. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a livestock and veterinary medicine feed dispensing device, which solves the problem that when dry feed is mixed with liquid, especially when the proportion of liquid added is high or some feeds themselves are highly viscous, the mixed wet feed is prone to sticking and clumping near the discharge port due to its poor viscosity and flowability when discharged from the bottom of the feed tank.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a livestock and veterinary medicine feed dispensing device, comprising a feed tank, a top frame fixedly connected to the top of the feed tank, a motor fixedly connected to the top edge of the feed tank, a first pulley fixedly connected to the output end of the motor, the output end of the motor passing through the top frame and provided with a reciprocating drive assembly, a first rotating shaft rotatably connected to the middle of the top frame, a second pulley fixedly connected to the outer wall of the first rotating shaft, a stirring shaft fixedly connected to the bottom of the first rotating shaft, a spiral stirring blade fixedly connected to the outer wall of the stirring shaft, a liquid supply assembly installed on the top of the top frame, a spraying assembly installed on the outer wall of the first rotating shaft, a feeding trough provided at the bottom of the feed tank, and a cleaning assembly provided inside the feeding trough; The liquid supply assembly includes a cylinder, which is fixedly connected to the outer wall of the top frame. A piston is slidably connected inside the cylinder. Two one-way valves are fixedly connected to the outer wall of the cylinder. One of the one-way valves is fixedly connected to an inlet pipe, and the other one-way valve is fixedly connected to an outlet pipe.
[0007] Preferably, the spraying assembly includes multiple spray pipes, the spray pipes are fixedly connected to the outer wall of the first rotating shaft, a nozzle is fixedly connected to the bottom of the outer wall of the spray pipe, a first spring is fixedly connected to the inner wall of the spray pipe, and a stop block is fixedly connected to the end of the first spring away from the inner wall of the spray pipe.
[0008] Preferably, the thickness of the baffle is greater than the inner diameter of the nozzle, a liquid storage tank is fixedly connected to the top of the feed tank, the end of the water inlet pipe away from the one-way valve is fixedly connected to the inside of the liquid storage tank, and the end of the water outlet pipe away from the one-way valve is located inside the first rotating shaft and communicates with the water spray pipe.
[0009] Preferably, a discharge pipe is fixedly connected to the bottom of the feed tank, a control valve is installed on the discharge pipe, a feed inlet is provided at the top of the feed tank, the spiral stirring blades are in the shape of two spirals with opposite directions, a belt is sleeved between the first pulley and the second pulley, and the connecting rod passes through the cylinder and is fixedly connected to the outer wall of the piston on the side away from the rotating frame.
[0010] Preferably, the reciprocating drive assembly includes a turntable, which is fixedly connected to the top of the motor output end. An eccentric shaft is fixedly connected to the top edge of the turntable, and a rotating frame is slidably connected to the outer wall of the eccentric shaft. A connecting rod is fixedly connected to the outer wall of the rotating frame.
[0011] Preferably, the connecting rod has a groove in the middle part along the length of the connecting rod, and the water outlet pipe is disposed inside the groove.
[0012] Preferably, the cleaning component includes a mounting column, which is fixedly connected to the inner wall of the feeding trough. A second rotating shaft is rotatably connected to the inner wall of the mounting column. Two scrapers are fixedly connected to the top of the second rotating shaft. The outer walls of the scrapers are in contact with the inner wall of the discharge pipe. A threaded groove is provided on the bottom outer wall of the second rotating shaft. A driving component is provided on the inner wall of the feeding trough.
[0013] Preferably, the drive assembly includes a threaded block, the threaded block and the threaded groove are threadedly connected, two connecting rods are fixedly connected to the outer wall of the threaded block, and a load plate is fixedly connected between the outer walls of the two connecting rods.
[0014] Preferably, the outer wall of the mounting column has two sliding grooves, and the outer wall of the connecting rod is slidably connected to the inner wall of the sliding grooves.
[0015] Preferably, a plurality of second springs are fixedly connected to the bottom of the loading plate, and the end of the second spring away from the loading plate is fixedly connected to the inner wall of the feeding trough.
[0016] This invention provides a livestock and veterinary medicine feed dispensing device. It has the following beneficial effects: 1. This invention utilizes a reciprocating drive assembly consisting of a turntable, eccentric shaft, connecting rod, and piston pump to directly convert the rotational motion of the motor into the reciprocating motion of the piston pump, providing stable and reliable power for liquid addition. This design is compact, with a short transmission chain and minimal energy loss, and can work in conjunction with the main stirring function. Simultaneously, a sealing structure consisting of springs and blocks is incorporated inside the water spray pipe to effectively prevent liquid leakage when pumping stops, ensuring accurate feed dosage and avoiding localized over-wetting or waste of feed.
[0017] 2. This invention achieves automated unblocking during the feeding process by incorporating a cleaning assembly consisting of a carrying plate, spring, threaded block, second rotating shaft, and scraper inside the feeding trough. This design utilizes the weight of the feed itself to drive the scraper's rotation, clearing the discharge pipe outlet and effectively solving the technical problem of easy clogging caused by the high viscosity of wet-mixed feed. The entire process requires no additional power source, reducing the device's energy consumption and structural complexity, and improving the reliability and automation level of the feeding process.
[0018] 3. This invention mounts both the mixing and spraying components on a first rotating shaft driven by the same motor, achieving synchronous rotation of mixing and liquid spraying. This structure allows the liquid to be evenly sprayed onto the material surface from the rotating nozzle while the feed is fully tumbled, ensuring uniform liquid addition and improving the efficiency and quality of wet mixing. A single power source driving multiple functional components also optimizes the overall structure of the device, reducing manufacturing costs and maintenance difficulty. Attached Figure Description
[0019] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a second-view perspective perspective view of the present invention; Figure 3 This is a schematic diagram of the spiral stirring blade of the present invention; Figure 4 for Figure 1 Enlarged view of point A in the middle; Figure 5 This is a cross-sectional view of the cylindrical body of the present invention; Figure 6 For this Figure 3 Enlarged view at point B in the middle; Figure 7 This is a cross-sectional view of the water spray pipe of the present invention; Figure 8 This is a cross-sectional view of the feeding trough of the present invention; Figure 9 for Figure 8 Enlarged view of point C in the middle.
[0020] The components are as follows: 1. Feed tank; 2. Top frame; 3. Motor; 4. First pulley; 5. Turntable; 6. Eccentric shaft; 7. Rotating frame; 8. Connecting rod; 9. First rotating shaft; 10. Second pulley; 11. Stirring shaft; 12. Spiral stirring blade; 13. Discharge pipe; 14. Control valve; 15. Feed trough; 16. Cylinder; 17. Piston; 18. Check valve; 19. Water inlet pipe; 20. Water outlet pipe; 21. Spray pipe; 22. Feed inlet; 23. Stop block; 24. First spring; 25. Nozzle; 26. Mounting column; 27. Second rotating shaft; 28. Threaded groove; 29. Threaded block; 30. Connecting rod; 31. Carrying plate; 32. Second spring; 33. Slide groove; 34. Scraper; 35. Liquid storage tank. Detailed Implementation
[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Example: Please see the appendix Figure 1 - Appendix Figure 9This invention provides a livestock and veterinary medicine feed dispensing device, comprising a feed tank 1, with a top frame 2 fixedly connected to its top, which provides a mounting base for multiple functional components within the device. The top of the feed tank 1 is provided with a feed inlet 22 for adding dry feed. The bottom of the feed tank 1 is connected to a discharge pipe 13, on which a control valve 14 is installed to control the discharge of the mixed feed.
[0023] A motor 3 is mounted on the top frame 2 as the power source for the device. A first pulley 4 is fixedly connected to the output end of the motor 3. A first rotating shaft 9 is rotatably mounted at the center of the top frame 2, and a second pulley 10 is fixedly connected to the outer wall of the first rotating shaft 9. The first pulley 4 and the second pulley 10 are connected by a belt. When the motor 3 operates, its rotational power is transmitted to the first rotating shaft 9 through this belt drive mechanism, thereby driving its rotation.
[0024] To mix the materials in feed tank 1, a mixing assembly is installed within the device. This assembly includes a mixing shaft 11 fixedly connected to the bottom of a first rotating shaft 9, and spiral mixing blades 12 fixed to the outer wall of the mixing shaft 11. The rotation of the first rotating shaft 9 synchronously drives the mixing shaft 11 and the spiral mixing blades 12 to rotate, thereby mixing the feed. To achieve better mixing, the spiral mixing blades 12 are designed with an inner and outer spiral structure, with the inner and outer spirals rotating in opposite directions. This design allows for axial and radial flow of the materials inside the tank, ensuring that the materials are fully and uniformly mixed. The device also has the function of adding liquid to dry feed, which is accomplished through a liquid supply assembly and a spraying assembly working together.
[0025] The liquid supply assembly is used to generate a pressurized liquid flow. It includes a cylinder 16 fixed to the outer wall of the top frame 2, with a piston 17 sliding inside the cylinder 16. Two one-way valves 18 are connected to the outer wall of the cylinder 16; one one-way valve 18 is connected to an inlet pipe 19, and the other one-way valve 18 is connected to an outlet pipe 20. A liquid storage tank 35 is also fixedly connected to the top of the feed tank 1, with the end of the inlet pipe 19, away from the one-way valves 18, fixedly connected inside the liquid storage tank 35. The arrangement of the two one-way valves 18 ensures that liquid can only be drawn into the cylinder 16 from the liquid storage tank 35 via the inlet pipe 19 and pumped out from the outlet pipe 20.
[0026] The liquid supply assembly is powered by a reciprocating drive assembly located at the output end of motor 3. This reciprocating drive assembly converts the rotational motion of motor 3 into the linear reciprocating motion of piston 17. It includes a turntable 5 fixed to the top of the output shaft of motor 3. An eccentric shaft 6 is eccentrically fixed to the top edge of the turntable 5. A rotating frame 7 is movably connected to the outer wall of the eccentric shaft 6, and the rotating frame 7 is fixedly connected to a connecting rod 8. The end of the connecting rod 8 away from the rotating frame 7 passes through the end cap of the cylinder 16 and is fixedly connected to the outer wall of piston 17. When motor 3 drives the turntable 5 to rotate, this mechanism functions as a crank-slider mechanism, driving the connecting rod 8 and piston 17 in reciprocating linear motion, thereby achieving automatic suction and pumping of the liquid. As an optional implementation, to make the pipeline layout more regular, a groove can be formed along the length of the connecting rod 8 in the middle. The outlet pipe 20 can be partially or entirely disposed inside this groove to provide protection and reduce motion interference.
[0027] The spraying assembly is responsible for evenly distributing the pumped liquid into the feed. The assembly includes multiple spray pipes 21 fixed to the outer wall of a first rotating shaft 9 and rotating with it. Each spray pipe 21 has a nozzle 25 fixedly connected to its bottom. The end of an outlet pipe 20 away from the one-way valve 18 is located inside the first rotating shaft 9 and is in fluid communication with the hollow spray pipes 21, delivering the liquid to the nozzles 25. Because the spray pipes 21 rotate synchronously with the stirring process, the liquid is evenly sprayed onto the surface of the material in the feed tank 1. To prevent liquid leakage when pumping stops, a sealing structure consisting of a first spring 24 and a stop block 23 is also provided inside the spray pipes 21. The thickness of the stop block 23 is greater than the inner diameter of the nozzle 25. When there is no centrifugal force generated by rotation, the first spring 24 pushes the stop block 23 to close the inner hole of the nozzle 25; when there is centrifugal force, the stop block 23 is pushed open, and the liquid is sprayed out.
[0028] The device has a feeding trough 15 at its bottom, and a passive cleaning assembly is installed inside the feeding trough 15. The assembly uses the weight of the feed itself to drive a scraper to rotate, thereby cleaning the outlet of the discharge pipe 13 and preventing blockage. The cleaning assembly includes a mounting post 26 fixed to the inner wall of the feeding trough 15, and a second rotating shaft 27 is rotatably supported inside the mounting post 26. Two scrapers 34 are fixedly connected to the top of the second rotating shaft 27, and the outer walls of the scrapers 34 are in contact with the inner wall of the discharge pipe 13. The bottom outer wall of the second rotating shaft 27 has a threaded groove 28.
[0029] Working in conjunction with the cleaning assembly is a drive assembly. The drive assembly includes a threaded block 29 threadedly connected to a threaded groove 28. Two connecting rods 30 are fixedly connected to the outer wall of the threaded block 29, and a carrying plate 31 is fixedly connected between the outer walls of the two connecting rods 30. The carrying plate 31 is used to receive feed falling from the discharge pipe 13. A plurality of second springs 32 are fixedly connected to the bottom of the carrying plate 31, and the other end of the second springs 32 is fixed to the inner wall of the feed trough 15, providing upward support for the carrying plate 31. To ensure that the threaded block 29 can only move up and down and cannot rotate, a vertical groove 33 is provided on the outer wall of the mounting post 26, and the outer walls of the connecting rods 30 are slidably connected within the groove 33.
[0030] The passive cleaning function works as follows: When the feed is fed, its weight acts on the carrier plate 31. When the weight is sufficient to overcome the elastic force of the second spring 32, the carrier plate 31 drives the connecting rod 30 and the threaded block 29 to move downwards. Since the connecting rod 30 is restricted within the slide groove 33, the threaded block 29 it connects to cannot rotate. Its downward linear motion then drives the second rotating shaft 27 to rotate in the opposite direction through the threaded engagement. The rotation of the second rotating shaft 27 then drives the scraper 34 to rotate, scraping the material at the outlet of the discharge pipe 13, thus clearing blockages and unblocking the flow.
[0031] Working Principle: During operation, dry feed is first added to the feed tank 1 through the feed inlet 22 located at the top. Then, the motor 3 is started, and its rotational power is distributed to two parallel functional systems. On one hand, the motor 3 transmits torque to the first rotating shaft 9 through a transmission mechanism consisting of the first pulley 4, a belt, and the second pulley 10, driving its rotation. Since the stirring shaft 11 is fixedly connected to the first rotating shaft 9, the inner and outer double-layered counter-rotating spiral stirring blades 12 fixed on the stirring shaft 11 also rotate. This stirring structure generates a mixing effect within the feed tank 1: the outer spiral blades push the upper material to the bottom, while the inner spiral blades lift the bottom material to the upper layer, forming axial convection; simultaneously, the rotational shearing action of the blades promotes positional exchange between material particles, providing a basis for the uniformity of subsequent liquid addition.
[0032] While the stirring system is operating, another portion of the power from motor 3 is used to drive the liquid supply system. A reciprocating drive assembly fixed to the top of the output shaft of motor 3 converts the rotational motion of motor 3 into the reciprocating linear motion of piston 17 within cylinder 16. The movement of piston 17 forms the pump's suction and compression strokes. During the suction stroke, a negative pressure is generated within cylinder 16, and liquid, guided by two one-way valves 18, is drawn into cylinder 16 from storage tank 35 via inlet pipe 19. During the compression stroke, piston 17 compresses the liquid, causing it to be pumped out under pressure from outlet pipe 20.
[0033] The pumped liquid is transported through pipelines to a spraying assembly that rotates synchronously with the mixing system. The liquid enters the hollow first rotating shaft 9 and is distributed to multiple spray pipes 21, eventually being sprayed out from the nozzles 25. As the nozzles 25 rotate with the mixing shaft, their spray trajectory covers the cross-section of the feed tank 1, ensuring that the liquid is applied evenly to the tumbling feed.
[0034] After the feed is evenly mixed, the operator opens the control valve 14 located at the bottom of the device. Under the influence of gravity, the mixed wet feed flows downward through the discharge pipe 13 and falls onto the carrying plate 31 in the feed trough 15. As the feed accumulates, the weight exerted on the carrying plate 31 gradually increases. When the downward pressure generated by this weight exceeds the upward support force provided by the multiple second springs 32, the carrying plate 31 causes the threaded block 29 connected to it to sink together. When the threaded block 29 moves axially in a linear motion, its internal threads move relative to the threaded grooves 28 on the second rotating shaft 27, and this force drives the second rotating shaft 27 to rotate. The rotation of the second rotating shaft 27 immediately causes the scraper 34 on its top to scrape and clean at the outlet of the discharge pipe 13.
[0035] When livestock eat the feed on the loading plate 31, the load on the loading plate 31 is reduced, and the elastic force of the second spring 32 will push the loading plate 31 and the threaded block 29 to reset upwards. During the reset process, the upward movement of the threaded block 29 will also drive the second rotating shaft 27 to rotate in the opposite direction, so that the scraper 34 returns to its initial position, preparing for the next feeding and clearing of blockages.
Claims
1. A livestock and veterinary medicine feed dispensing device, comprising a feed tank (1), characterized in that, The feed tank (1) is fixedly connected to a top frame (2), and a motor (3) is fixedly connected to the top edge of the feed tank (1). The output end of the motor (3) is fixedly connected to a first pulley (4). The output end of the motor (3) passes through the top frame (2) and is provided with a reciprocating drive assembly. The top frame (2) is rotatably connected to a first rotating shaft (9). The outer wall of the first rotating shaft (9) is fixedly connected to a second pulley (10). The bottom of the first rotating shaft (9) is fixedly connected to a stirring shaft (11). The outer wall of the stirring shaft (11) is fixedly connected to a spiral stirring blade (12). A liquid supply assembly is installed on the top of the top frame (2). A spraying assembly is installed on the outer wall of the first rotating shaft (9). A feed trough (15) is provided at the bottom of the feed tank (1). A cleaning assembly is provided inside the feed trough (15). The liquid supply assembly includes a cylinder (16) which is fixedly connected to the outer wall of the top frame (2). A piston (17) is slidably connected inside the cylinder (16). Two one-way valves (18) are fixedly connected to the outer wall of the cylinder (16). One of the one-way valves (18) is fixedly connected to an inlet pipe (19), and the other one-way valve (18) is fixedly connected to an outlet pipe (20).
2. The livestock and veterinary medicine feed dispensing device according to claim 1, characterized in that, The spraying assembly includes multiple spray pipes (21), the spray pipes (21) are fixedly connected to the outer wall of the first rotating shaft (9), the bottom of the outer wall of the spray pipes (21) is fixedly connected to a nozzle (25), the inner wall of the spray pipes (21) is fixedly connected to a first spring (24), and a stop block (23) is fixedly connected to the end of the first spring (24) away from the inner wall of the spray pipes (21).
3. The livestock and veterinary medicine feed dispensing device according to claim 2, characterized in that, The thickness of the baffle (23) is greater than the inner diameter of the nozzle (25). A liquid storage tank (35) is fixedly connected to the top of the feed tank (1). The end of the water inlet pipe (19) away from the one-way valve (18) is fixedly connected to the inside of the liquid storage tank (35). The end of the water outlet pipe (20) away from the one-way valve (18) is located inside the first rotating shaft (9) and communicates with the water spray pipe (21).
4. The livestock and veterinary medicine feed dispensing device according to claim 1, characterized in that, The feed tank (1) is fixedly connected to the bottom of the discharge pipe (13), and a control valve (14) is installed on the discharge pipe (13). The feed tank (1) is provided with a feed inlet (22) at the top. The spiral stirring blade (12) is in the shape of two spirals, and the inner and outer spirals are opposite in direction. A belt is sleeved between the first pulley (4) and the second pulley (10). The connecting rod (8) passes through the cylinder (16) on the side away from the rotating frame (7) and is fixedly connected to the outer wall of the piston (17).
5. The livestock and veterinary medicine feed dispensing device according to claim 1, characterized in that, The reciprocating drive assembly includes a turntable (5), which is fixedly connected to the top of the output end of the motor (3). An eccentric shaft (6) is fixedly connected to the top edge of the turntable (5). A rotating frame (7) is slidably connected to the outer wall of the eccentric shaft (6). A connecting rod (8) is fixedly connected to the outer wall of the rotating frame (7).
6. The livestock and veterinary medicine feed dispensing device according to claim 5, characterized in that, The connecting rod (8) has a groove in the middle part along the length of the connecting rod (8), and the water outlet pipe (20) is disposed inside the groove.
7. The livestock and veterinary medicine feed dispensing device according to claim 4, characterized in that, The cleaning assembly includes a mounting column (26), which is fixedly connected to the inner wall of the feeding trough (15). A second rotating shaft (27) is rotatably connected to the inner wall of the mounting column (26). Two scrapers (34) are fixedly connected to the top of the second rotating shaft (27). The outer wall of the scraper (34) is in contact with the inner wall of the discharge pipe (13). A threaded groove (28) is provided on the bottom outer wall of the second rotating shaft (27). A drive assembly is provided on the inner wall of the feeding trough (15).
8. The livestock and veterinary medicine feed dispensing device according to claim 7, characterized in that, The drive assembly includes a threaded block (29), which is threadedly connected to the threaded groove (28). Two connecting rods (30) are fixedly connected to the outer wall of the threaded block (29), and a load plate (31) is fixedly connected between the outer walls of the two connecting rods (30).
9. A livestock and veterinary medicine feed dispensing device according to claim 8, characterized in that, The outer wall of the mounting column (26) has two grooves (33), and the outer wall of the connecting rod (30) is slidably connected to the inner wall of the grooves (33).
10. A livestock and veterinary medicine feed dispensing device according to claim 8, characterized in that, The bottom of the loading plate (31) is fixedly connected to a plurality of second springs (32), and the end of the second spring (32) away from the loading plate (31) is fixedly connected to the inner wall of the feeding trough (15).