Crop seed screening device for agricultural technology popularization
By combining an electric slide rail and a sieve aperture adjustment plate, the problem of limited screening range in existing devices is solved, enabling efficient screening of seeds of multiple sizes, preventing clogging, and improving the applicability and efficiency of crop seed screening devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 济宁市农业技术推广中心
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-05
AI Technical Summary
Existing crop seed screening devices can only screen seeds of the same diameter, which cannot meet the screening needs of seeds of different sizes, thus limiting the screening range.
By setting up electric slide rails, track blocks, connecting plates, and screen hole adjustment plates, the screen hole can be adjusted. Combined with anti-clogging components, smooth material feeding is ensured, which can adapt to the screening of seeds of different sizes.
It expands the screening range, improves screening efficiency, prevents clogging, adapts to diverse seed screening needs, and enhances the applicability and work efficiency of the equipment.
Smart Images

Figure CN224195258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural tools technology, specifically to a crop seed screening device for agricultural technology extension. Background Technology
[0002] The main functions of crop seed screening devices used in agricultural technology extension include improving seed purity and cleanliness, ensuring seed quality, and thus improving agricultural production efficiency. Through a strict screening process, seed quality can be ensured to meet the requirements of agricultural production, thereby increasing crop yield and quality.
[0003] Chinese patent CN216163231U discloses an agricultural seed selection and screening device for agricultural technology extension. This device aims to solve the technical problem of existing technologies failing to effectively remove rice husks mixed with seeds, thus affecting seed screening quality and equipment screening efficiency. The device includes a fixed plate; a waste collection component is fixedly installed on the outer side of the fixed plate; a feeding component is located at the upper end of the fixed plate; a screening component is fixedly installed on the outer side of the waste collection component; and a seed collection component is fixedly installed at the bottom end of the screening component. This agricultural seed selection and screening device for agricultural technology extension simply requires seeds to fall onto the screening component under gravity. The seeds roll down along the screening component; unqualified seeds fall into a guide plate, while qualified seeds roll into the seed collection component, achieving effective seed screening.
[0004] However, the surface of the screening frame in the above scheme has a fixed screening aperture, which is only suitable for screening crop seeds of the same diameter. It cannot effectively screen seeds of different diameters. Therefore, the screening range of the device is limited, and it can only provide a single screening size, which cannot meet the user's screening needs for diverse seed sizes. Utility Model Content
[0005] The purpose of this utility model is to provide a crop seed screening device for agricultural technology extension, so as to solve the problem mentioned in the background art that the screening range is limited and can only provide a single screening size, which cannot meet the user's diverse screening needs for seed size.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a seed screening device for agricultural technology extension, comprising a fixed base, an installation frame fixedly installed on the top of the fixed base, and a seed screening component provided on the top of the installation frame;
[0007] Electric slide rails are symmetrically fixedly installed on both sides of the mounting frame. Track blocks are slidably connected to the outer ends of the two electric slide rails. A connecting plate is fixedly installed on one side of each of the two track blocks. A sieve hole adjustment plate is fixedly installed on one side of each of the two connecting plates. The sieve hole adjustment plate penetrates the inner wall of the mounting frame.
[0008] Preferably, a storage compartment is fixedly installed on the top of the fixed base, a feeding pipe is fixedly installed on the bottom of the storage compartment, an anti-clogging component is provided inside the feeding pipe, and support components are symmetrically arranged at the bottom of the seed screening component.
[0009] Preferably, the seed screening assembly includes an L-shaped plate, which is fixedly installed on one side of the mounting frame. A drive motor is fixedly installed on one side of the L-shaped plate, and a rotary adjustment plate is fixedly installed at the output end of the drive motor.
[0010] Preferably, a seed sieve frame is rotatably connected to one side of the rotating adjustment plate, and a spring is symmetrically fixedly installed on one side of the seed sieve frame. The spring is fixedly connected to the inner side of the L-shaped plate, and the seed sieve frame is slidably connected to the interior of the mounting frame.
[0011] Preferably, the anti-clogging component includes a servo motor, which is fixedly installed inside the storage compartment. A main gear is fixedly installed at the output end of the servo motor, and a driven gear is meshed with one side of the main gear.
[0012] Preferably, a movable seat is fixedly installed on one side of both the driven gear and the main gear, both movable seats are rotatably connected to the inner wall of the feed tube, and a transmission roller is fixedly installed on one side of both movable seats.
[0013] Preferably, the support assembly includes a rotating shaft, two rotating shafts are symmetrically rotated and installed at the bottom of the sieve frame, and torsion springs are fixedly installed at the outer ends of the two rotating shafts. A pressing plate is fixedly installed at one end of the rotating shaft, and the pressing plate is movably connected to the bottom of the sieve hole adjusting plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. By setting up an electric slide rail, track block, connecting plate and sieve hole adjustment plate, the position of the sieve hole adjustment plate can be precisely adjusted through the coordinated work of the electric slide rail and track block. This mechanism allows for adjustment of the gap between the sieve holes on the surface of the sieve hole adjustment plate and the sieve holes on the surface of the seed sieve frame, thereby enabling the equipment to adapt to the screening of crop seeds of different sizes. Therefore, the application range of the crop seed screening device is expanded, which is conducive to the widespread promotion of the equipment.
[0016] 2. By setting up anti-clogging components, this solution can transmit the material through the discharge port to prevent blockage. It can also control the discharge speed to prevent the screening device from being unable to screen the material, thus improving the screening effect of the equipment. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a three-dimensional structural diagram of the seed screening component of this utility model;
[0019] Figure 3 This is a three-dimensional structural diagram of the support component of this utility model;
[0020] Figure 4 This is a three-dimensional structural diagram of the anti-clogging component of this utility model;
[0021] Figure 5 This utility model Figure 2 Enlarged diagram of point A in the middle.
[0022] In the diagram: 1. Fixed base; 2. Mounting frame; 3. Screening assembly; 31. L-shaped plate; 32. Drive motor; 33. Rotary adjustment plate; 34. Screening frame; 35. Spring; 4. Electric slide rail; 5. Track block; 6. Connecting plate; 7. Screen hole adjustment plate; 8. Storage bin; 9. Feed pipe; 10. Anti-clogging assembly; 101. Servo motor; 102. Main gear; 103. Driven gear; 104. Movable seat; 105. Transmission roller; 11. Support assembly; 111. Rotating shaft; 112. Torsion spring; 113. Pressing plate. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a crop seed screening device for agricultural technology extension, including a fixed base 1, an installation frame 2 fixedly installed on the top of the fixed base 1, and a screening component 3 provided on the top of the installation frame 2;
[0025] Electric slide rails 4 are symmetrically fixedly installed on both sides of the mounting frame 2. Track blocks 5 are slidably connected to the outer ends of the two electric slide rails 4. Connecting plates 6 are fixedly installed on one side of each of the two track blocks 5. Screen hole adjustment plates 7 are fixedly installed on one side of each of the two connecting plates 6. The screen hole adjustment plates 7 penetrate the inner wall of the mounting frame 2.
[0026] A storage chamber 8 is fixedly installed on the top of the fixed base 1, and a feeding pipe 9 is fixedly installed on the bottom of the storage chamber 8. An anti-clogging component 10 is provided inside the feeding pipe 9, and a support component 11 is symmetrically arranged on the bottom of the seed screening component 3.
[0027] Through the coordinated operation of the electric slide rail 4 and the track block 5, the position of the sieve hole adjustment plate 7 can be precisely adjusted. This mechanism allows for adjustment of the gap between the sieve holes on the surface of the sieve hole adjustment plate 7 and the sieve holes on the surface of the seed sieve frame 34, thereby enabling the equipment to adapt to the screening of crop seeds of different sizes. As a result, the application range of the crop seed screening device is expanded, which is conducive to the widespread promotion of the equipment.
[0028] Please see Figure 1 and Figure 2 The seed screening assembly 3 includes an L-shaped plate 31, which is fixedly installed on one side of the mounting frame 2. A drive motor 32 is fixedly installed on one side of the L-shaped plate 31. A rotary adjustment plate 33 is fixedly installed at the output end of the drive motor 32. A seed screening frame 34 is rotatably connected to one side of the rotary adjustment plate 33. Springs 35 are symmetrically fixedly installed on one side of the seed screening frame 34. The springs 35 are fixedly connected to the inner side of the L-shaped plate 31. The seed screening frame 34 is slidably connected to the inside of the mounting frame 2.
[0029] This structure can screen crop seeds of different sizes, simulating manual sieving by shaking a sieve, saving manpower and improving work efficiency.
[0030] Please see Figure 1 and Figure 4 The anti-clogging component 10 includes a servo motor 101, which is fixedly installed inside the storage compartment 8. A main gear 102 is fixedly installed at the output end of the servo motor 101. A driven gear 103 is meshed with one side of the main gear 102. Movable seats 104 are fixedly installed on one side of both the driven gear 103 and the main gear 102. Both movable seats 104 are rotatably connected to the inner wall of the feed pipe 9, and a transmission roller 105 is fixedly installed on one side of both movable seats 104.
[0031] This solution can transmit material through the discharge port to prevent blockage, and can also control the discharge speed to prevent the screening device from being unable to screen the material, thus improving the screening effect of the equipment.
[0032] Please see Figure 1 , Figure 2 and Figure 3 The support assembly 11 includes a rotating shaft 111. Two rotating shafts 111 are symmetrically rotated and installed at the bottom of the sieve frame 34. Torsion springs 112 are fixedly installed at the outer ends of the two rotating shafts 111. A pressing plate 113 is fixedly installed at one end of the rotating shaft 111. The pressing plate 113 is movably connected to the bottom of the sieve hole adjusting plate 7.
[0033] This structure can support the bottom of the sieve hole adjustment plate 7, making the sieve hole adjustment plate 7 more firmly fixed.
[0034] Working principle: The operator starts the electric slide rail 4, which drives the track block 5 for adjustment. The track block 5 then drives the connecting plate 6 for adjustment, which in turn drives the sieve hole adjustment plate 7 for adjustment. The holes between the sieve hole adjustment plate 7 and the seed sieve frame 34 are adjusted to the required size. The operator releases the hand that was pressing the pressing plate 113. The rotating shaft 111 no longer receives pressure and resets using the torque of the torsion spring 112. The rotating shaft 111 then drives the pressing plate 113 to reset, using the pressing plate 113 to support the bottom of the sieve hole adjustment plate 7. The crop seeds are placed inside the storage chamber 8. The servo motor 101 is then started, driving the main gear 102 to rotate. 102 drives the driven gear 103 to rotate, and the driven gear 103 and the main gear 102 simultaneously drive the movable seat 104 to rotate. The movable seat 104 drives the transmission roller 105 to rotate and transmit the crop seeds to the surface of the seed sieving frame 34. The drive motor 32 is started, and the drive motor 32 drives the rotating adjustment plate 33 to adjust. The rotating adjustment plate 33 drives the seed sieving frame 34 to move left and right. The elasticity of the spring 35 increases the bumps during the movement. The seed sieving frame 34 is used to sieve the crop seeds. The above is the working process of the whole device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0035] 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 seed screening device for agricultural technology extension, characterized in that: It includes a fixed base (1), and an installation frame (2) is fixedly installed on the top of the fixed base (1), and a seed screening component (3) is provided on the top of the installation frame (2). Electric slide rails (4) are symmetrically fixedly installed on both sides of the mounting frame (2). Track blocks (5) are slidably connected to the outer ends of the two electric slide rails (4). A connecting plate (6) is fixedly installed on one side of each of the two track blocks (5). A sieve hole adjustment plate (7) is fixedly installed on one side of each of the two connecting plates (6). The sieve hole adjustment plate (7) penetrates the inner wall of the mounting frame (2).
2. The crop seed screening device for agricultural technology extension as described in claim 1, characterized in that: The top of the fixed base (1) is fixedly installed with a storage chamber (8), the bottom of the storage chamber (8) is fixedly installed with a feeding pipe (9), the inside of the feeding pipe (9) is provided with an anti-clogging component (10), and the bottom of the seed screening component (3) is symmetrically provided with a support component (11).
3. The crop seed screening device for agricultural technology extension as described in claim 2, characterized in that: The seed screening assembly (3) includes an L-shaped plate (31), which is fixedly installed on one side of the mounting frame (2). A drive motor (32) is fixedly installed on one side of the L-shaped plate (31), and a rotary adjustment plate (33) is fixedly installed at the output end of the drive motor (32).
4. The crop seed screening device for agricultural technology extension as described in claim 3, characterized in that: A seed sieve frame (34) is rotatably connected to one side of the rotating adjustment plate (33). A spring (35) is symmetrically fixedly installed on one side of the seed sieve frame (34). The spring (35) is fixedly connected to the inner side of the L-shaped plate (31). The seed sieve frame (34) is slidably connected to the inside of the mounting frame (2).
5. A seed screening device for agricultural technology extension as described in claim 2, characterized in that: The anti-clogging component (10) includes a servo motor (101), which is fixedly installed inside the storage compartment (8). A main gear (102) is fixedly installed at the output end of the servo motor (101), and a driven gear (103) is meshed with one side of the main gear (102).
6. The crop seed screening device for agricultural technology extension as described in claim 5, characterized in that: Movable seats (104) are fixedly installed on one side of both the slave gear (103) and the master gear (102). Both movable seats (104) are rotatably connected to the inner wall of the feed tube (9), and a transmission roller (105) is fixedly installed on one side of both movable seats (104).
7. The crop seed screening device for agricultural technology extension according to claim 4, characterized in that: The support assembly (11) includes a rotating shaft (111), two rotating shafts (111) are symmetrically rotated and installed at the bottom of the sieve frame (34), and torsion springs (112) are fixedly installed at the outer ends of the two rotating shafts (111). A pressing plate (113) is fixedly installed at one end of the rotating shaft (111), and the pressing plate (113) is movably connected to the bottom of the sieve hole adjusting plate (7).
Citation Information
Patent Citations
Agricultural seed selecting and screening device for agricultural technology popularization
CN216163231U