Wheat breeding and seed selecting device
By combining large and small sieves for screening and using brine separation technology, the problem of poor screening effect of existing devices has been solved, achieving efficient screening and quality improvement, and enhancing the seed's resistance to diseases and pests.
Patent Information
- Application Number
- CN202520436601.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing wheat breeding equipment has a small shaking amplitude during screening, which causes seeds to get stuck, resulting in poor screening effect and inability to effectively remove small impurities and shriveled grains, thus affecting seed quality.
A combination of large and small sieves is used for screening, and an electric telescopic rod drives the feeding hopper to reciprocate, increasing the force during seed screening. In addition, brine is used in the water storage tank to separate impurities and shriveled seeds, and density differences are used for further screening.
It makes seed screening more time-saving and labor-saving, effectively removes impurities and shriveled seeds, improves seed quality, and enhances resistance to diseases and pests.
Smart Images

Figure CN223915592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wheat breeding and selection technology, specifically a wheat breeding and selection device. Background Technology
[0002] High-quality seeds are the foundation for high yields. Screened seeds, due to their high purity, plumpness, and high germination rate, ensure sufficient density and robust individual wheat plants in the field. Screening removes shriveled and broken seeds. Plump seeds contain sufficient endosperm, providing ample nutrition for seed germination and seedling growth. Shriveled seeds, on the other hand, typically lack sufficient nutrient reserves, have low germination rates, and even if they germinate, the seedlings are weak and struggle to grow robustly.
[0003] The patent publication number "CN220781189U" discloses a "wheat breeding and selection device", which includes a screening trough, a feeding hopper at the upper end of the screening trough, multiple discharge ports at the end of the screening trough away from the feeding hopper, a support frame at the lower end of the screening trough, a support leg connected to the lower end of the support frame, a first screening plate and a second screening plate inside the screening trough, and a feeding adjustment mechanism inside the feeding hopper.
[0004] The aforementioned patent, by setting up a first and a second screening plate, can screen out larger impurities, small particles, and shriveled seeds from wheat seeds, thus enabling finer seed screening. The screening plates are replaceable, allowing for precise screening by selecting plates with suitable apertures. A feed baffle can be added to adjust the feed speed, facilitating more detailed seed screening. However, this device suffers from insufficient shaking amplitude during seed screening, resulting in inadequate force when seeds become stuck in the screen. This leads to poor seed screening efficiency, and the device's inability to screen out smaller impurities and shriveled seeds further hinders the screening results, negatively impacting breeding efforts.
[0005] Therefore, this utility model provides a wheat breeding and selection device to solve the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, this invention provides a wheat breeding and selection device that solves the aforementioned problems.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a wheat breeding and selection device, comprising a screening component for screening wheat seeds, the screening component comprising a water storage tank, support plates fixedly connected to both sides of the water storage tank, two support plates, and a screening component disposed between the two support plates, the screening component comprising a feeding bin, connecting plates fixedly connected to both sides of the feeding bin, an output end of an electric telescopic rod fixedly connected to the side surface of the connecting plate, and the end of the electric telescopic rod fixedly connected to the inner surface of the support plate.
[0008] Furthermore, the feeding hopper has a large mesh trough and a small mesh trough, with a small screen movably connected inside the small mesh trough and a large screen movably connected inside the large mesh trough.
[0009] Using the above technical solution, the large and small screens have different gap sizes, with the large screen having fewer gaps. Using two different screens makes it easier to screen impurities in wheat seeds more finely.
[0010] Furthermore, two limiting plates are fixedly connected to the lower surface of the feeding hopper.
[0011] By adopting the above technical solution, the movement range of the feeding hopper is more restricted by the two limiting plates, so that it will not detach from the device.
[0012] Furthermore, a discharge port is provided at the bottom of the front surface of the feeding hopper.
[0013] By adopting the above technical solution, the seeds after screening can be easily removed from the discharge hopper through the discharge port.
[0014] Furthermore, the two limiting plates are movably connected to the rear wall of the water storage tank.
[0015] By adopting the above technical solution, the feeding hopper can move inside the water storage tank by means of a limiting plate that is movably connected to the rear wall of the water storage tank, and the seeds inside the feeding hopper will not spill out of the device.
[0016] Furthermore, a push rod is fixedly connected to the rear surface of the water storage tank, and connecting blocks are fixedly connected to the four corners of the lower surface of the water storage tank, with connecting rods fixedly connected to the bottom of the connecting blocks.
[0017] By adopting the above technical solution, the push rod facilitates the movement of the device, making its use more convenient.
[0018] Beneficial effects
[0019] This invention provides a wheat breeding and selection device. Compared with the prior art, it has the following advantages:
[0020] 1. This wheat breeding and seed selection device uses an electric telescopic rod to reciprocate. The output end of the electric telescopic rod drives the connecting plate and the feeding bin to reciprocate. Seeds are sequentially screened through a large screen and a small screen. This results in a greater force when the feeding bin screens the seeds initially, preventing seeds from getting stuck on the screens. This makes the screening process more time-saving and labor-saving, and more effectively removes impurities from the seeds.
[0021] 2. This wheat breeding and seed selection device adds an appropriate amount of salt water to a storage tank. Seeds selected from the feeding hopper are sprinkled from the discharge port into the storage tank. In the salt water of a certain concentration, plump wheat seeds, due to their higher density, sink, while shriveled grains and some impurities, due to their lower density, float on the surface. This allows the device to further separate smaller impurities and shriveled grains, achieving the beneficial effects of ensuring seed quality and enhancing seed resistance to diseases and pests. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a perspective view of the external structure of this utility model;
[0024] Figure 2 This is a top view of the structure of this utility model;
[0025] Figure 3 This is a rear view of the structure of this utility model;
[0026] Figure 4 This is a partial rear view of the structure of this utility model.
[0027] In the diagram: 1. Screening component; 101. Water storage tank; 102. Push rod; 103. Support plate; 104. Connecting block; 105. Connecting rod; 2. Screening component; 201. Feeding bin; 202. Large mesh trough; 203. Small mesh trough; 204. Connecting plate; 205. Electric telescopic rod; 206. Small screen; 207. Large screen; 208. Limiting plate; 209. Discharge port. Detailed Implementation
[0028] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0030] Reference Figures 1 to 4 This application provides a wheat breeding and selection device, including a screening component 1 for screening wheat seeds. The screening component 1 includes a water storage tank 101, with support plates 103 fixedly connected to both sides of the water storage tank 101. There are two support plates 103, and a screening component 2 is arranged between the two support plates 103. The screening component 2 includes a feeding bin 201, with connecting plates 204 fixedly connected to both sides of the feeding bin 201. An output end of an electric telescopic rod 205 is fixedly connected to the side surface of the connecting plate 204, and the end of the electric telescopic rod 205 is fixedly connected to the inner surface of the support plate 103. A large mesh trough 202 and a small mesh trough 203 are opened inside the feeding bin 201. A small screen 206 is movably connected inside the small mesh trough 203, and a large screen 207 is movably connected inside the large mesh trough 202.
[0031] In this embodiment, the mesh size of the large sieve 207 is larger, while the mesh size of the small sieve 206 is smaller. When the seeds are screened from top to bottom, the large sieve 207 will perform an initial screening of the impurities in the seeds, and then the small sieve 206 will perform a secondary screening of some inferior seeds.
[0032] Reference Figures 1 to 4 In one aspect of this embodiment, a limiting plate 208 is fixedly connected to the lower surface of the feeding bin 201, and there are two limiting plates 208.
[0033] In this embodiment, by activating the electric telescopic rod 205 to reciprocate, the output end of the electric telescopic rod 205 drives the connecting plate 204 and the feeding bin 201 to reciprocate. The seeds will be screened sequentially through the large screen 207 and the small screen 206, so that the feeding bin 201 has a greater force when screening the seeds for the first time, avoiding the possibility of the seeds getting stuck on the screen. This achieves the beneficial effect of making the screening work more time-saving and labor-saving, and more effectively removing impurities from the seeds.
[0034] Reference Figures 1 to 4 In one aspect of this embodiment, a discharge port 209 is provided at the bottom of the front surface of the feeding hopper 201.
[0035] In this embodiment, the seeds screened in the feeding hopper 201 are thrown out of the feeding port 209 as the feeding hopper 201 shakes.
[0036] Reference Figures 1 to 4 In one aspect of this embodiment, two limiting plates 208 are movably connected to the rear wall of the water storage tank 101.
[0037] In this embodiment, when the feeding hopper 201 moves, the two limiting plates 208 move back and forth along the rear wall of the water storage tank 101.
[0038] Reference Figures 1 to 4 In one aspect of this embodiment, a push rod 102 is fixedly connected to the rear surface of the water storage tank 101, and connecting blocks 104 are fixedly connected to the four corners of the lower surface of the water storage tank 101. A connecting rod 105 is fixedly connected to the bottom end of the connecting block 104.
[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0040] Working principle: By adding an appropriate amount of salt water to the water storage tank 101, the seeds screened from the feeding hopper 201 are sprinkled from the discharge port 209 into the water storage tank 101. In the salt water of a certain concentration, plump wheat seeds sink due to their higher density, while shriveled grains and some impurities float on the surface due to their lower density. This allows the device to further separate smaller impurities and shriveled grains, achieving the beneficial effects of ensuring seed quality and enhancing seed resistance to diseases and pests.
[0041] 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 process, method, article, or apparatus.
[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wheat breeding and selection device, comprising a screening component (1) for screening wheat varieties, characterized in that: The screening component (1) includes a water storage tank (101), and support plates (103) are fixedly connected to both sides of the water storage tank (101). There are two support plates (103) and a screening component (2) is arranged between the two support plates (103). The screening component (2) includes a feeding bin (201), and connecting plates (204) are fixedly connected to both sides of the feeding bin (201). An output end of an electric telescopic rod (205) is fixedly connected to the side surface of the connecting plate (204), and the end of the electric telescopic rod (205) is fixedly connected to the inner surface of the support plate (103).
2. The wheat breeding and selection device according to claim 1, characterized in that: The feeding hopper (201) has a large mesh trough (202) inside, the feeding hopper (201) has a small mesh trough (203) inside, the small mesh trough (203) is movably connected to a small screen (206), and the large mesh trough (202) is movably connected to a large screen (207).
3. The wheat breeding and selection device according to claim 1, characterized in that: The lower surface of the feeding hopper (201) is fixedly connected to a limiting plate (208), and there are two limiting plates (208).
4. The wheat breeding and selection device according to claim 1, characterized in that: The feed hopper (201) has a discharge port (209) at the bottom of its front surface.
5. The wheat breeding and selection device according to claim 3, characterized in that: The two limiting plates (208) are movably connected to the rear wall of the water storage tank (101).
6. The wheat breeding and selection device according to claim 1, characterized in that: A push rod (102) is fixedly connected to the rear surface of the water storage tank (101), and a connecting block (104) is fixedly connected to each of the four corners of the lower surface of the water storage tank (101). A connecting rod (105) is fixedly connected to the bottom end of the connecting block (104).
Citation Information
Patent Citations
Wheat breeding and seed selecting device
CN220781189U