Crop seed screening device

Abstract

The utility model discloses a crop seed screening device which comprises a base, a screening box is arranged at the top end of the base, discharging ports are symmetrically fixed to one side of the screening box, a vibrating mechanism is connected between the base and the screening box, and a screen cleaning mechanism capable of being screwed out is arranged on the surface of the screening box. According to the rotary-out cleaning screen mechanism, when the screen is blocked, after the locking rod is unscrewed, the built-in annular ring is screwed out by pulling the handle to drive the screen, caked seeds and seeds clamped in meshes can be cleaned conveniently, and the rotary-out cleaning screen mechanism is screwed back and locked after cleaning so that operation can be continued. The design of the T-shaped connecting base, the rotating block and the universal ball enables rotation to be smooth, the sealing strip guarantees sealing, the locking rod guarantees stable structure, compared with the prior art, the device solves the problems of caking of wet seeds and blockage of the screen, cleaning convenience is improved, screening efficiency and continuity are guaranteed, rotation operation is easy, sealing and leakage prevention are achieved, and the structure is reliable.

Description

Technical Field

[0001] This utility model belongs to the field of crop seed screening technology, and specifically relates to a crop seed screening device. Background Technology

[0002] Seed sieving devices are essential equipment in agriculture for grading and screening seeds. Their function is to separate seeds into different grades based on their physical characteristics such as size, shape, and weight to meet the needs of various stages, including sowing, breeding, and processing. Existing seed sieving devices often encounter problems when sieving moist seeds, such as seed clumping, which hinders proper sieving. Furthermore, some seeds become stuck inside the mesh of the sieving screen. Excessive stuck seeds negatively impact sieving efficiency. Cleaning traditional sieving devices often requires disassembling the entire sieving box or screen, which is cumbersome, time-consuming, and increases maintenance costs and downtime. Therefore, developing a seed sieving device that facilitates easy screen cleaning and improves sieving efficiency is of significant practical importance. Utility Model Content

[0003] The purpose of this invention is to provide a crop seed screening device to solve the problem mentioned in the background art that the crop seed screening device is not convenient enough when cleaning the screening screen.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crop seed screening device, including a base, a screening box at the top of the base, a discharge port symmetrically fixed on one side of the screening box, a vibration mechanism connected between the base and the screening box, and a rotatable cleaning screen mechanism on the surface of the screening box, the rotatable cleaning screen mechanism including: a rotatable locking component and a sealing component.

[0005] Preferably, the screw-out locking assembly includes a screw outlet formed on the surface of the screening box and a built-in annular ring disposed inside the screw outlet, wherein a screening screen is fixed to the bottom of the inner side of the built-in annular ring.

[0006] Preferably, an annular fixing seat is fixed on the other side of the screening box, one end of the annular fixing seat is provided with a connecting groove, and a T-shaped connecting seat embedded in the connecting groove is fixed on the side of the built-in annular ring.

[0007] Preferably, the inner wall of the connecting groove is symmetrically provided with a rotary groove, and the two ends of the T-shaped connecting seat are symmetrically fixed with rotary blocks. The rotary blocks are rotatably connected to the rotary grooves. The two ends of the T-shaped connecting seat are symmetrically provided with ball grooves. Universal balls are provided inside the ball grooves, and the universal balls are in contact with the inner wall of the connecting groove.

[0008] Preferably, the end of the rotating block is provided with a locking hole, the inside of the rotating groove is provided with a through hole, and the two ends of the annular fixing seat are symmetrically provided with locking rods that pass through the inside of the through hole and connect to the locking hole, and the locking rods are screwed and fixedly connected to the locking hole.

[0009] Preferably, the sealing assembly includes sealing strips symmetrically fixed at both ends of the built-in annular ring, the sealing strips being in contact with the inner wall of the swivel outlet.

[0010] Preferably, a pull handle is fixed to the surface of the built-in annular ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features a rotatable screen cleaning mechanism. When the screen becomes clogged, loosening the locking rod and pulling the handle unscrews the built-in annular ring, which then rotates the screen to facilitate the removal of clumped seeds and seeds stuck in the mesh. After cleaning, the ring is screwed back in and locked to continue operation. The T-shaped connecting seat, rotating block, and universal ball bearing design ensure smooth rotation, while the sealing strip guarantees a tight seal and the locking rod ensures structural stability. Compared to existing technologies, this device solves the problems of damp seed clumping and screen clogging, improves cleaning convenience, ensures screening efficiency and continuity, and offers easy rotation operation, leak-proof sealing, and reliable structure. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0014] Figure 2 This is a schematic diagram of the screening box structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the swirl-out structure of the screening screen of this utility model;

[0016] Figure 4 In this utility model Figure 2 Enlarged view of point A;

[0017] Figure 5 In this utility model Figure 4 Enlarged view of point B;

[0018] In the diagram: 1. Base; 2. Screening box; 3. Discharge port; 4. Vibration mechanism; 100. Rotary outlet; 101. Internal annular ring; 102. Screening screen; 200. Annular fixed seat; 201. Connecting groove; 202. T-shaped connecting seat; 300. Rotary groove; 301. Rotary block; 302. Ball groove; 303. Universal ball; 400. Locking hole; 401. Through hole; 402. Locking rod; 500. Sealing strip; 600. Pull handle. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 5 This utility model provides a technical solution: a crop seed screening device, including a base 1, a screening box 2 is provided at the top of the base 1, a discharge port 3 is symmetrically fixed on one side of the screening box 2, a vibration mechanism 4 is connected between the base 1 and the screening box 2, and a rotatable cleaning screen mechanism is provided on the surface of the screening box 2, the rotatable cleaning screen mechanism includes: a rotatable locking component and a sealing component.

[0021] In this embodiment, preferably, the screw-out locking assembly includes a screw-out outlet 100 formed on the surface of the sieving box 2 and an inner ring 101 disposed inside the screw-out outlet 100. A sieving screen 102 is fixed to the bottom of the inner ring 101. The sieving screen 102 is used to sieve seeds. When the sieving screen 102 is affected by seed dampness and clumping or seed jamming, affecting the sieving efficiency, the inner ring 101 and the sieving screen 102 can be screwed out of the sieving box 2 through the screw-out outlet for cleaning, which is convenient and quick.

[0022] In this embodiment, preferably, an annular fixing seat 200 is fixed on the other side of the screening box 2. One end of the annular fixing seat 200 is provided with a connecting groove 201. A T-shaped connecting seat 202 embedded in the connecting groove 201 is fixed on the side of the built-in annular ring 101. The T-shaped connecting seat is embedded in the connecting groove, so that the built-in annular ring 101 and the screening box 2 form a rotatable connection structure, providing support and connection foundation for the rotation out and rotation in of the built-in annular ring 101. Moreover, this structure can not only be used on screening devices with two screening outlets 3. If the screening device has multiple outlets 3, a screening screen 102 with a rotating structure can be set between every two outlets 3 to facilitate quick cleaning of blockages.

[0023] In this embodiment, preferably, the inner wall of the connecting groove 201 is symmetrically provided with a rotating groove 300, and the two ends of the T-shaped connecting seat 202 are symmetrically fixed with rotating blocks 301. The rotating blocks 301 are rotatably connected to the rotating grooves 300. The two ends of the T-shaped connecting seat 202 are symmetrically provided with ball grooves 302. Universal balls 303 are provided inside the ball grooves 302. The universal balls 303 are in contact with the inner wall of the connecting groove 201. The rotating blocks 301 and the rotating grooves 300 cooperate to realize the rotation of the T-shaped connecting seat 202 in the connecting groove 201, so that the built-in annular ring 101 can rotate out around the T-shaped connecting seat 202 as the center. The universal balls 303 are in contact with the inner wall of the connecting groove 201 and roll when the T-shaped connecting seat 202 rotates, reducing friction and making the rotation smoother, more flexible, and easier to operate.

[0024] In this embodiment, preferably, the end of the rotating block 301 is provided with a locking hole 400, and the interior of the rotating groove 300 is provided with a through hole 401. The two ends of the annular fixing seat 200 are symmetrically provided with locking rods 402 that pass through the interior of the through hole 401 and connect to the locking hole 400. The locking rods 402 are screwed and fixedly connected to the locking hole 400. The surface of the locking rods 402 is covered with rubber gaskets that fit against the annular fixing seat 200 to prevent loosening during vibration. This allows the built-in annular ring 101 to be firmly locked inside the rotating outlet 100. By screwing the locking rods 402 through the through hole 401 and the locking hole 401, the built-in annular ring 101 is locked and fixed inside the screening box 2, ensuring that the built-in annular ring 101 will not loosen during screening and ensuring stable operation of the device. When cleaning is required, the locking rods 402 can be loosened to release the lock and facilitate the unscrewing of the built-in annular ring 101.

[0025] In this embodiment, preferably, the sealing assembly includes sealing strips 500 symmetrically fixed at both ends of the built-in annular ring 101. The sealing strips 500 are in contact with the inner wall of the swivel outlet 100. When the built-in annular ring 101 is screwed into the swivel outlet, the sealing strips 500 are in contact with the inner wall of the swivel outlet, which plays a sealing role and prevents seeds, dust and other particles from leaking from the swivel outlet during the screening process, thus ensuring the sealing and reliability of the screening operation.

[0026] In this embodiment, preferably, the surface of the built-in annular ring 101 is fixed with a pull handle 600, which makes it convenient for the operator to pull the built-in annular ring 101 to rotate it out or into the screening box 2, thereby improving the convenience of operation.

[0027] The working principle and usage process of this utility model are as follows: When screening crop seeds through the screening box 2, if the crop seeds are relatively moist, they may clump together when poured into the screening box 2 and vibrated by the vibration mechanism 4, making normal screening impossible. Furthermore, some crop seeds may get stuck inside the mesh of the screening screen 102, preventing them from falling to the next layer. When a large number of crop seeds are stuck in the mesh, the screening efficiency will be affected. Therefore, the clumps of crop seeds can be broken up and the seeds stuck in the mesh can be cleaned. First, loosen the locking rods 402 at both ends of the annular fixing seat 200, allowing their ends to exit from the locking hole 400 and screw into the through hole 401, thus releasing the locking position of the built-in annular ring 101. Then, by pulling the handle 600, the built-in annular ring 101 is pulled through the screening box 2. Rotating around the T-shaped connecting seat 202 as the center causes the T-shaped connecting seat 202 to rotate inside the connecting groove 201, and drives the universal ball bearing 303 to roll inside the ball groove 302 in contact with the inside of the connecting groove 201, thus assisting the rotation. At the same time, it drives the rotating block 301 to rotate inside the rotating groove 300, allowing the built-in annular ring 101 to drive the sealing strip 500 to rotate out from inside the screening box 2 through the rotating outlet 100. Then, it can break up the clumps of seeds on the screening screen 102 and clean the seeds stuck inside the mesh. After cleaning, push the built-in annular ring 101 to rotate and lock it into the rotating outlet 100, and the sealing strip 500 will seal it. Then tighten the locking rod 402, so that it rotates inside the through hole 401 and engages with the locking hole 400 to fix and lock the position of the built-in annular ring 101. Then, the vibration operation can continue.

[0028] Although embodiments of the present invention have been shown and described (see the detailed description above), 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 crop seed screening device, comprising a base (1), a screening box (2) being provided at the top of the base (1), a discharge port (3) being symmetrically fixed on one side of the screening box (2), and a vibration mechanism (4) being connected between the base (1) and the screening box (2), characterized in that: The surface of the screening box (2) is provided with a rotatable cleaning screen mechanism, which includes a rotatable locking component and a sealing component.

2. A crop seed screening device according to claim 1, characterised in that: The screw-out locking assembly includes a screw outlet (100) opened on the surface of the screening box (2) and an inner ring (101) disposed inside the screw outlet (100), wherein a screening screen (102) is fixed at the bottom of the inner ring (101).

3. A crop seed screening device according to claim 2, characterised in that: The screening box (2) is fixed with an annular fixing seat (200) on the other side. A connecting groove (201) is provided at one end of the annular fixing seat (200). A T-shaped connecting seat (202) embedded in the connecting groove (201) is fixed on the side of the built-in annular ring (101).

4. A crop seed screening device according to claim 3, characterised in that: The inner wall of the connecting groove (201) is symmetrically provided with a swivel groove (300). The two ends of the T-shaped connecting seat (202) are symmetrically fixed with swivel blocks (301). The swivel blocks (301) are rotatably connected to the swivel groove (300). The two ends of the T-shaped connecting seat (202) are symmetrically provided with ball grooves (302). Universal balls (303) are provided inside the ball grooves (302). The universal balls (303) are in contact with the inner wall of the connecting groove (201).

5. A crop seed screening device according to claim 4, characterised in that: The end of the rotating block (301) is provided with a locking hole (400), and the inside of the rotating groove (300) is provided with a through hole (401). The two ends of the annular fixing seat (200) are symmetrically provided with locking rods (402) that pass through the inside of the through hole (401) and are connected to the locking hole (400). The locking rods (402) are screwed and fixedly connected to the locking hole (400).

6. A crop seed screening device according to claim 5, characterised in that: The sealing assembly includes sealing strips (500) symmetrically fixed at both ends of the built-in annular ring (101), the sealing strips (500) being in contact with the inner wall of the swivel outlet (100).

7. A crop seed screening device according to claim 6, characterised in that: A pull handle (600) is fixed to the surface of the built-in annular ring (101).

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