Feed basin for pig breeding
By designing a feed trough with an arc-shaped bottom and spill-proof edges that conform to the equation r=a(1+cosθ), the problem of high feed residue rate in traditional flat-bottomed feed troughs is solved, achieving efficient feed utilization and easy cleaning, making it suitable for pig farming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN PROV AGRI MACHANIZATION INST
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-17
AI Technical Summary
The flat-bottomed structure of existing pig feed troughs leads to high feed residue rates, especially for small-particle powdery feed. Existing improvement solutions, such as tilting feed troughs, have problems with complex structures and high manufacturing costs.
Design a feeding trough for pig farming, with an arc-shaped bottom conforming to the equation r=a(1+cosθ), combined with the gradual curvature characteristics of the inner and outer curved walls, and an anti-overflow edge set at the bottom of the trough. The pig's tongue naturally scrapes the bottom of the trough to reduce feed residue.
It achieves a feed residue rate reduction of over 85%, and features easy cleaning and high strength, making it suitable for large-scale pig farms.
Smart Images

Figure CN224124905U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feed basins, and in particular to a feed basin for pig farming. Background Technology
[0002] Most existing pig feed troughs use a flat-bottomed structure made of stainless steel (such as...). Figure 1 As shown in the diagram, in actual use, pigs' tongues cannot easily reach the bottom edge of the feed trough when they eat, resulting in feed residue easily remaining at the bottom of flat-bottomed feed troughs, especially for small powdery feed particles. Statistics show that the feed residue rate in traditional flat-bottomed feed troughs can reach 5% to 8%, causing not only waste but also making the residue prone to mold and leading to intestinal diseases in pigs. Existing improvement solutions, such as inclined feed troughs, suffer from complex structures and high manufacturing costs, and have not been effectively promoted. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides a feed trough for pig farming.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:
[0007] A feeding trough for pig farming includes a trough body. A cone-shaped upward-protruding structure is provided at the center of the bottom of the inner wall of the trough body. The bottom of the trough body has an arc-shaped structure. The wall of the trough body in longitudinal section near the upward-protruding structure is an inner curved wall, the curve of which satisfies the Cartesian cardioid equation r = a(1 + cosθ), where the parameter a ranges from 2.4 to 2.6 cm, and the angle θ ranges from 0 to 40°. The wall of the trough body in longitudinal section away from the upward-protruding structure is an outer curved wall, the curve of which satisfies the Cartesian cardioid equation r = a(1 + cosθ), where the parameter a ranges from 2.1 to 2.3 cm, and the angle θ ranges from ~40° to 0°.
[0008] Preferably, the radius of curvature of the arc-shaped bottom of the basin decreases from the center to the edge.
[0009] Preferably, the angle between the edge of the curved bottom of the basin and the horizontal plane is 45° to 60°.
[0010] Preferably, the opening of the basin is provided with an inwardly folded edge to prevent overflow.
[0011] Preferably, the width of the anti-overflow edge is 5-7 cm.
[0012] Preferably, the basin is made of stainless steel.
[0013] (III) Beneficial Effects
[0014] The beneficial effects of this utility model are as follows: By adopting the above technical solution, the flat bottom of the traditional feed trough is improved into a linear arc bottom that conforms to the equation r=a(1+cosθ). The curvature gradient characteristic allows the pig's tongue to naturally scrape the bottom of the trough when eating. Combined with the anti-overflow edge design, the feed residue rate is reduced by more than 85%. This application has the characteristics of easy cleaning and high strength, and is suitable for large-scale pig farms. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a pig feed trough in the background art;
[0016] Figure 2 A schematic diagram of the structure of a feed trough for pig farming;
[0017] Figure 3 This is a schematic diagram of the longitudinal section of a feed trough for pig farming.
[0018] [Explanation of Labels in the Attached Image]
[0019] 100. Basin;
[0020] 101. Upward-protruding structure; 102. Inner curved wall; 103. Outer curved wall; 104. Overflow prevention edge. Detailed Implementation
[0021] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] Please refer to Figures 2 to 3 This utility model provides a feeding basin for pig farming, including a basin body 100. A cone-shaped upward-protruding structure 101 is provided at the center of the bottom of the inner wall of the basin body 100. The bottom of the basin body 100 has an arc-shaped structure. The wall of the basin body 100 on the longitudinal section near the upward-protruding structure 101 is an inner curved wall 102. The curve of the inner curved wall 102 satisfies the Cartesian cardioid equation r = a(1 + cosθ), where the parameter a ranges from 2.4 to 2.6 cm, and the angle θ ranges from 0 to 40°. The wall of the basin body 100 on the longitudinal section away from the upward-protruding structure 101 is an outer curved wall 103. The curve of the outer curved wall 103 satisfies the Cartesian cardioid equation r = a(1 + cosθ), where the parameter a ranges from 2.1 to 2.3 cm, and the angle θ ranges from 0 to 40°.
[0023] When in use, the flat bottom of the traditional feed trough is improved to a linear arc bottom that conforms to the equation r=a(1+cosθ). The curvature gradually changes so that the pig's tongue naturally scrapes the bottom of the trough when eating. Combined with the anti-overflow edge design 104, the feed residue rate is reduced by more than 85%. This application has the characteristics of easy cleaning and high strength, and is suitable for large-scale pig farms.
[0024] In this embodiment, the radius of curvature of the arc-shaped bottom of the basin 100 decreases from the center to the edge.
[0025] In this embodiment, the angle between the edge of the arc-shaped bottom of the basin 100 and the horizontal plane is 45° to 60°.
[0026] In this embodiment, the opening of the basin 100 is provided with an inwardly folded anti-overflow edge 104.
[0027] In this embodiment, the width of the anti-overflow edge 104 is 5-7 cm.
[0028] In this embodiment, the basin 100 is made of stainless steel.
[0029] The working principle of this utility model is as follows:
[0030] By improving the flat bottom of the traditional feed trough to a linear arc bottom that conforms to the equation r=a(1+cosθ), the gradual curvature characteristics allow the pig's tongue to naturally scrape the bottom of the trough when feeding. Combined with the anti-overflow edge design 104, the feed residue rate is reduced by more than 85%. This application features easy cleaning and high strength, and is suitable for large-scale pig farms.
[0031] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A feed basin for pig breeding, characterized in that, The device includes a basin. At the center of the bottom of the basin's inner wall, there is a cone-shaped upward-protruding structure. The bottom of the basin has an arc-shaped structure. The longitudinal section of the basin, near the upward-protruding structure, has an inner curved wall whose curve satisfies the Cartesian cardioid equation r = a(1 + cosθ), where parameter a ranges from 2.4 to 2.6 cm, and angle θ ranges from 0 to 40°. The longitudinal section of the basin, away from the upward-protruding structure, has an outer curved wall whose curve satisfies the Cartesian cardioid equation r = a(1 + cosθ), where parameter a ranges from 2.1 to 2.3 cm, and angle θ ranges from 0 to 40°.
2. The feeding trough for pig breeding according to claim 1, characterized in that, The radius of curvature of the curved bottom of the basin decreases from the center to the edge.
3. The feeding trough for pig breeding according to claim 1, characterized in that, The angle between the edge of the curved bottom of the basin and the horizontal plane is 45° to 60°.
4. A feeding trough for pig farming according to claim 1, characterized in that, The opening of the basin is provided with an inwardly folded edge to prevent overflow.
5. The feeding trough for pig breeding according to claim 4, characterized in that, The width of the overflow prevention edge is 5-7cm.
6. The feeding trough according to claim 1, characterized in that, The basin is made of stainless steel.