Seed screening device

Abstract

The utility model belongs to the field of seed screening devices, and provides a seed screening device which comprises a screen mesh unit and a locking mechanism, the screen mesh unit is arranged in a machine body and comprises a screen mesh, and limiting columns are arranged on the two sides of the screen mesh; the locking mechanism is arranged on one side of the inner wall of the machine body and comprises a locking column, and a linkage device is arranged above the locking column. According to the seed screening device, the arranged screen units can be rapidly replaced, different screens can be conveniently replaced according to different seeds, the positions of the screens can be locked through cooperation with the arranged locking mechanisms, the screens are prevented from moving in the using process of the device, and the applicability of the device is improved in the application scene where multiple seeds need to be screened.

Description

Technical Field

[0001] The utility model belongs to the field of seed screening devices, in particular to a seed screening device. Background Art

[0002] With the development of agricultural modernization, seed quality plays a vital role in the growth and yield of crops. Seed screening is one of the important links in the seed processing process. It can effectively remove impurities, broken grains and ungerminated seeds, improve seed purity and germination rate, and ensure sowing effect.

[0003] However, current seed screening devices mostly use screens and vibrating screens for screening. Based on the screen mesh size or the shape of the screen holes selected by the device, it can usually only be used for a specific type of seed. For application scenarios where multiple seeds need to be screened, the applicability is poor. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a seed screening device, aiming to solve the problem of poor applicability mentioned in the background technology.

[0005] The utility model is implemented as follows: a seed screening device comprises a body, the body comprises a feed inlet, the feed inlet is arranged at the top of the body, a partition is arranged in the body, a waste material outlet is arranged on one side of the partition, a seed outlet is arranged on the other side of the partition, a fan is arranged on one side of the body, and further comprises:

[0006] A screen unit, the screen unit is arranged inside the machine body, the screen unit comprises a screen, and limit posts are arranged on both sides of the screen;

[0007] The locking mechanism is arranged on one side of the inner wall of the machine body, and the locking mechanism includes a locking column, a concave tooth is arranged on the outer side of the locking column, a linkage is arranged above the locking column, a positioning shaft is arranged on one side of the linkage, and the other side of the linkage is fixedly connected to one end of the rotating shaft, and the other end of the rotating shaft passes through the side wall of the machine body and extends to the outside and is fixedly connected to the knob.

[0008] As a further solution of the utility model: baffles are arranged on both sides of the fan, the baffles are arranged as a mesh structure with fine holes, the fan is arranged above the screen, the screen is arranged obliquely inside the body, and both ends of the screen pass through the body and extend to the outside.

[0009] As a further solution of the utility model: the limiting column is configured as a columnar structure with a circular cross-section and a diameter greater than the thickness of the screen, and a locking groove is provided between the limiting column and the screen.

[0010] As a further solution of the utility model: the partition is fixedly connected to the inner wall of the machine body, the partition is arranged as a plate-like structure, a chamfer is arranged on one side of the upper end of the partition, a first movable groove is arranged on the other side of the upper end of the partition corresponding to the limiting column on one side of the screen, and the limiting column is movably arranged in the first movable groove.

[0011] As a further solution of the utility model: the locking column is set as a cylindrical structure, the outer side of the locking column is provided with a second movable groove corresponding to the limiting column on the other side of the screen, and the limiting column is movably set in the second movable groove.

[0012] As a further solution of the utility model: the outer side of the linkage is provided with convex teeth, the outer side of the linkage is meshed with concave teeth, the inner wall of the body is provided with a positioning shaft groove corresponding to the positioning shaft, and the positioning shaft is movably arranged in the positioning shaft groove.

[0013] As a further solution of the utility model: a spring is arranged on the outer movable sleeve of the rotating shaft, a first limiting groove is arranged on one side of the linkage device corresponding to one end of the spring, and a first limiting groove is arranged on the inner wall of the body corresponding to the other end of the spring.

[0014] As a further solution of the utility model: the partition divides the inner part of the machine body into two parts, the waste port is inclined to the inner wall of the partition, one end of the waste port penetrates the machine body and extends to the outside, the seed outlet is inclined to the inner wall of the partition, one end of the seed outlet penetrates the machine body and extends to the outside, and the inclination direction of the waste port is opposite to that of the seed outlet.

[0015] A seed screening device provided by an embodiment of the utility model can be quickly replaced through the provided screen unit, which is convenient for replacing different screens for different seeds. The provided locking mechanism can lock the position of the screen to prevent the screen from moving during use of the device, thereby improving the applicability of the device in application scenarios where screening of multiple seeds is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural diagram of a seed screening device provided by an embodiment of the utility model;

[0017] Figure 2 A cross-sectional view of a seed screening device provided by an embodiment of the utility model;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0020] Figure 5A cross-sectional view of a locking structure of a seed screening device provided by an embodiment of the utility model;

[0021] Figure 6 for Figure 5 Enlarged schematic diagram at point C in the middle.

[0022] In the accompanying drawings: 1-body, 2-feed port, 3-partition, 31-waste port, 32-seed outlet, 33-first movable slot, 4-fan, 41-blocking net, 5-screen unit, 6-screen, 61-limiting column, 62-locking slot, 7-locking mechanism, 8-locking column, 81-concave tooth, 82-second movable slot, 9-linkage, 91-positioning shaft, 92-positioning shaft slot, 10-rotating shaft, 101-spring, 102-first limiting slot, 103-second limiting slot, 11-knob. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0025] like Figures 1 to 6 As shown, a seed screening device provided by an embodiment of the utility model comprises a body 1, the body 1 comprises a feed port 2, the feed port 2 is arranged at the top of the body 1, a partition 3 is arranged in the body 1, a waste port 31 is arranged on one side of the partition 3, a seed outlet 32 ​​is arranged on the other side of the partition 3, a fan 4 is arranged on one side of the body 1, and further comprises:

[0026] A screen unit 5, wherein the screen unit 5 is arranged inside the machine body 1, and the screen unit 5 comprises a screen 6, and limit posts 61 are arranged on both sides of the screen 6;

[0027] The locking mechanism 7 is arranged on one side of the inner wall of the body 1, and the locking mechanism 7 includes a locking column 8, and a concave tooth 81 is arranged on the outer side of the locking column 8. A linkage 9 is arranged above the locking column 8, and a positioning shaft 91 is arranged on one side of the linkage 9. The other side of the linkage 9 is fixedly connected to one end of the rotating shaft 10, and the other end of the rotating shaft 10 passes through the side wall of the body 1 and extends to the outside and is fixedly connected to the knob 11.

[0028] In one embodiment of the utility model, the screen unit 5 can be quickly replaced, so different screens 6 can be replaced for different seeds. The locking mechanism 7 can be used to lock the position of the screen 6 to prevent the screen 6 from moving during use. This improves the applicability of the device for application scenarios where screening of multiple seeds is required.

[0029] In one embodiment of the utility model, during use, the fan 4 is kept turned on continuously, and seeds are loaded into the device through the set feed port 2. When the seeds fall, after passing through the airflow blown out by the fan 4, the lighter parts such as fine impurities, broken particles, and dead leaves are blown away, and the remaining seeds fall on the top of the screen 6 and roll along the inclined direction of the screen 6. The required seeds can pass through the mesh holes of the screen 6 normally, and larger seeds or gravel slide along the screen 6.

[0030] like Figure 1 and Figure 4 As shown, as a preferred embodiment of the utility model, both sides of the fan 4 are provided with a blocking net 41, and the blocking net 41 is set as a mesh structure with fine holes. The fan 4 is set above the screen 6, and the screen 6 is tilted inside the body 1. Both ends of the screen 6 pass through the body 1 and extend to the outside. The limiting column 61 is set as a columnar structure with a circular cross-section and a diameter greater than the thickness of the screen 6. A locking groove 62 is set between the limiting column 61 and the screen 6.

[0031] Furthermore, the partition 3 is fixedly connected to the inner wall of the body 1, and the partition 3 is arranged as a plate-like structure. A chamfer is arranged on one side of the upper end of the partition 3, and a first movable groove 33 is arranged on the other side of the upper end of the partition 3 corresponding to the limiting column 61 on one side of the screen 6, and the limiting column 61 is movably arranged in the first movable groove 33.

[0032] In one example of the utility model, a baffle 41 is provided to prevent the blades of the fan 4 from injuring people on the one hand, and to prevent seeds from entering the fan 4 and being crushed by the blades or damaging the fan 4 on the other hand. The inclined screen 6 cooperates with the chamfer of the upper end of the partition 3 to prevent debris from getting stuck in the screen 6 and the top of the partition 3, thereby affecting subsequent use. The screen 6 is extended to the outside, so that the screen 6 can be easily pulled out and replaced.

[0033] like Figures 4 to 6As shown, as a preferred embodiment of the utility model, the locking column 8 is set as a cylindrical structure, and the outer side of the locking column 8 is provided with a second movable groove 82 corresponding to the limiting column 61 on the other side of the screen 6, and the limiting column 61 is movably set in the second movable groove 82. The outer side of the linkage 9 is provided with a convex tooth, and the outer side of the linkage 9 is meshed with the concave tooth 81. The inner wall of the body 1 is provided with a positioning shaft groove 92 corresponding to the positioning shaft 91, and the positioning shaft 91 is movably set in the positioning shaft groove 92. The outer side of the rotating shaft 10 is movably sleeved with a spring 101, and one side of the linkage 9 is provided with a first limiting groove 102 corresponding to one end of the spring 101, and the inner wall of the body 1 is provided with a first limiting groove 102 corresponding to the other end of the spring 101.

[0034] In one example of the present invention, the rotating shaft 10 is driven to rotate by rotating the knob 11, and the first limit groove 102 and the second limit groove 103 are cooperated to make the spring 101 start to store elastic potential energy. The rotation of the rotating shaft 10 drives the linkage 9 to rotate and drives the locking column 8 to rotate through the engaged concave teeth 81, thereby unlocking the screen 6. When the knob 11 is released, the elastic potential energy of the spring 101 is released. If the screen 6 is in a suitable position, the locking column 8 is engaged with the limit column 61 to lock the position of the screen 6.

[0035] like Figure 2 As shown, as a preferred embodiment of the utility model, the partition 3 divides the interior of the body 1 into two parts, the waste port 31 is inclined to the inner wall of the partition 3, one end of the waste port 31 penetrates the body 1 and extends to the outside, the seed outlet 32 ​​is inclined to the inner wall of the partition 3, one end of the seed outlet 32 ​​penetrates the body 1 and extends to the outside, and the waste port 31 and the seed outlet 32 ​​are inclined in opposite directions.

[0036] In an example of the utility model, qualified seeds and screened waste are discharged from both sides of the machine body 1 respectively through the waste outlet 31 and the seed outlet 32, which effectively avoids adulteration and prevents the generation of dust.

[0037] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A seed screening device, comprising a body (1), the body (1) comprising a feed inlet (2), the feed inlet (2) being arranged at the top of the body (1), a partition (3) being arranged inside the body (1), a waste material outlet (31) being arranged on one side of the partition (3), a seed outlet (32) being arranged on the other side of the partition (3), a fan (4) being arranged on one side of the body (1), characterized in that: Also includes: A screen unit (5), the screen unit (5) being arranged inside the machine body (1), the screen unit (5) comprising a screen (6), and limiting columns (61) being arranged on both sides of the screen (6); A locking mechanism (7), wherein the locking mechanism (7) is arranged on one side of the inner wall of the body (1), the locking mechanism (7) comprises a locking column (8), a concave tooth (81) is arranged on the outer side of the locking column (8), a linkage (9) is arranged above the locking column (8), a positioning shaft (91) is arranged on one side of the linkage (9), the other side of the linkage (9) is fixedly connected to one end of a rotating shaft (10), and the other end of the rotating shaft (10) passes through the side wall of the body (1) and extends to the outside to be fixedly connected to a knob (11).

2. A seed screening device according to claim 1, characterized in that: Blocking nets (41) are arranged on both sides of the fan (4), and the blocking nets (41) are arranged in a mesh structure with fine holes. The fan (4) is arranged above the screen (6), and the screen (6) is arranged obliquely inside the machine body (1). Both ends of the screen (6) penetrate the machine body (1) and extend to the outside.

3. A seed screening device according to claim 2, characterized in that: The limiting column (61) is configured as a columnar structure with a circular cross-section and a diameter greater than the thickness of the screen (6), and a locking groove (62) is provided between the limiting column (61) and the screen (6).

4. A seed screening device according to claim 3, characterized in that: The partition (3) is fixedly connected to the inner wall of the machine body (1); the partition (3) is arranged as a plate-like structure; one side of the upper end of the partition (3) is provided with a chamfer; the other side of the upper end of the partition (3) is provided with a first movable groove (33) corresponding to a limiting column (61) on one side of the screen (6); the limiting column (61) is movably arranged in the first movable groove (33).

5. A seed screening device according to claim 1, characterized in that: The locking column (8) is configured as a cylindrical structure, and a second movable groove (82) is provided on the outer side of the locking column (8) corresponding to the limiting column (61) on the other side of the screen (6), and the limiting column (61) is movably disposed in the second movable groove (82).

6. A seed screening device according to claim 1, characterized in that: The outer side of the linkage (9) is provided with convex teeth, and the outer side of the linkage (9) is meshed with the concave teeth (81). The inner wall of the body (1) is provided with a positioning shaft groove (92) corresponding to the positioning shaft (91), and the positioning shaft (91) is movably arranged in the positioning shaft groove (92).

7. A seed screening device according to claim 6, characterized in that: A spring (101) is provided on the outer movable sleeve of the rotating shaft (10), a first limiting groove (102) is provided on one side of the linkage (9) corresponding to one end of the spring (101), and a first limiting groove (102) is provided on the inner wall of the body (1) corresponding to the other end of the spring (101).

8. A seed screening device according to claim 1, characterized in that: The partition (3) divides the interior of the machine body (1) into two parts, the waste port (31) is arranged obliquely with respect to the inner wall of the partition (3), one end of the waste port (31) penetrates the machine body (1) and extends to the outside, the seed outlet (32) is arranged obliquely with respect to the inner wall of the partition (3), one end of the seed outlet (32) penetrates the machine body (1) and extends to the outside, and the waste port (31) and the seed outlet (32) have opposite inclination directions.

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