Screening device for rice production

Abstract

The utility model discloses a screening device for rice production, which comprises a support frame, and a screening box is mounted on the support frame; the utility model relates to the technical field of screening devices, if only rice needs to be screened, the rice is added into the device from a feeding pipe on a main channel, enters branch channels on the two sides through the main channel and then enters screening grooves on the two sides, and if only two kinds of crops need to be screened at the same time, the rice is added into the device from the feeding pipe on the main channel. Rice and other crops are added into the device through the feeding pipes on the two branch channels correspondingly, the two crops are screened through the two screening grooves and fall into the two sides of the linear partition plate correspondingly, the linear partition plate is used for preventing the crops on the two sides from being mixed, the vibration motor works, and the two screened crops are separated through the V-shaped partition plate to flow to the two sides correspondingly; a worker can collect impurities and rice at the opening of the screening box, the application range is wide, and the diversified screening requirements in modern agricultural production are met.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically a screening device for rice production. Background Technology

[0002] In the rice production and processing industry, screening is a crucial step in ensuring rice quality and subsequent processing efficiency. During harvesting, drying, storage, and transportation, rice inevitably becomes contaminated with various impurities, such as rice husks, straw fragments, soil particles, stones, and other small foreign objects. The presence of these impurities not only reduces the purity of the rice, affecting its market value, but can also cause wear and tear on processing equipment during subsequent processing, even leading to equipment malfunctions and increasing production costs and maintenance difficulties. Therefore, effective screening of rice before it enters the next processing stage is of paramount importance.

[0003] Traditional rice screening methods rely heavily on manual screening or simple mechanical screening tools. Manual screening is inefficient, labor-intensive, and struggles to guarantee screening accuracy and consistency, making it unsuitable for large-scale rice production. Furthermore, traditional screening equipment has a simple structure. For example, a rice screening mechanism disclosed in CN220461371U includes a U-shaped mounting base, a sliding mounting plate, an L-shaped fixing plate, and a screening hopper. The U-shaped mounting base has symmetrical mounting frames on its inner walls, the sliding mounting plate is located on the upper surface of the mounting frames, and the screening hopper is located on the side surface of the L-shaped fixing plate. It only provides one screening space, thus allowing for screening of only one variety of rice in a single screening operation, rather than simultaneously screening multiple crops, failing to meet the diverse screening requirements of modern agricultural production.

[0004] While existing technologies may already offer solutions to the aforementioned problems, this case aims to provide an alternative or replacement technical solution. Utility Model Content

[0005] To solve the problems mentioned in the background art, the present invention is achieved through the following technical solution: a screening device for rice production, including a support frame, a screening box installed on the support frame, one end wall of the screening box in the length direction being an open structure, a vibrating motor installed on the side wall of the screening box, and a partition screening structure installed on the inner side wall of the screening box;

[0006] The separating screening structure includes a straight partition plate, which is installed along the length of the screening box at the center of the bottom inner side of the screening box. A V-shaped partition plate is installed on the end of the straight partition plate near the opening structure. A frame is installed on the inner wall of the screening box, the straight partition plate, and the V-shaped partition plate. Two notches are opened on the frame, which are located on both sides of the straight partition plate. Two screening troughs are movably installed on the frame via an installation component. The two screening troughs are installed corresponding to the two notches. Each screening trough has an open structure at the end near the V-shaped partition plate. The lower wall of each screening trough has a mesh structure. A feeding structure is embedded at the end of the screening box away from the opening structure. A shielding structure is installed at the top of the screening box.

[0007] Preferably, the feeding structure includes a main channel, which is a closed structure located at one end outside the screening box. The main channel is embedded in the wall of the screening box away from the opening structure. Two branch channels are provided at one end of the main channel, and one end of each of the two branch channels is respectively provided with a feeding pipe on the upper wall of the main channel and the two branch channels.

[0008] Preferably, the mounting assembly includes multiple fixing seats, which are symmetrically mounted on the upper wall of the frame in pairs with the notch as the center. Multiple connecting blocks are installed on the side walls of the screening trough, and the multiple connecting blocks are arranged in a one-to-one correspondence with the multiple fixing seats. Bolts are movably inserted into each of the multiple connecting blocks, and the bolts are movably inserted into the fixing seats by threads.

[0009] Preferably, the shielding structure includes a cover, which is movably fastened to the upper end of the screening box, and the feeding pipe is movably inserted into the cover. A discharge pipe is inserted into the end of the cover near the V-shaped partition.

[0010] Preferably, the support frame includes multiple uprights, each of which is equipped with a spring, and a connecting frame is mounted on each spring. The connecting frame is mounted on the outer wall of the screening box.

[0011] Preferably, one end of the screening trough extends outside the screening box.

[0012] Beneficial effects

[0013] This utility model provides a screening device for rice production, which has the following advantages compared with the prior art: If only rice needs to be screened, the rice is added into the device through the feeding pipe on the main channel. The rice passes through the main channel and enters the branch channels on both sides, and then enters the screening troughs on both sides. If only two crops need to be screened at the same time, the rice and other crops are added into the device through the feeding pipes on the two branch channels respectively. The two crops are screened through the two screening troughs and fall into the two sides of the straight partition. The straight partition is used to prevent the crops on both sides from mixing. After the vibration motor works, the two screened crops are separated by the V-shaped partition and flow to the two sides respectively. The workers can collect impurities and rice at the opening of the screening box. It has a wide range of applications and meets the diverse screening requirements in modern agricultural production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a screening device for rice production according to this utility model.

[0015] Figure 2 This is a partial top-view three-dimensional structural diagram of a screening device for rice production according to this utility model.

[0016] Figure 3 This is a partial upward-view three-dimensional structural diagram of a screening device for rice production according to this utility model.

[0017] In the diagram: 1. Screening box, 2. Vibrating motor, 3. Straight baffle, 4. V-shaped baffle, 5. Frame, 6. Notch, 7. Mounting assembly, 71. Fixing base, 72. Connecting block, 73. Bolt, 8. Screening trough, 9. Main channel, 10. Branch channel, 11. Feeding pipe, 12. Cover, 13. Ash discharge pipe, 14. Support leg, 15. Spring, 16. Connecting frame. Detailed Implementation

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example: Those skilled in the art shall connect all electrical components and their compatible power supplies in this case with wires, and select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence shall refer to the working principle described below, in which the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.

[0020] Please see Figure 1-3In order to solve the problem that traditional screening equipment has a single structure and only sets up a screening space, so it can only screen rice and a single variety in one screening operation, and cannot screen multiple crops at the same time, thus failing to meet the diverse screening requirements of modern agricultural production, this technical solution is designed. The detailed technical solution is as follows.

[0021] A screening device for rice production includes a support frame, on which a screening box 1 is installed. One end wall of the screening box 1 along its length is an open structure. A vibrating motor 2 is installed on the side wall of the screening box 1, and a separating screening structure is installed on the inner side wall of the screening box 1.

[0022] It should be noted that the device should be fixed at the target location and the power supply and control system should be connected.

[0023] Specifically, the screening structure includes a straight partition 3, which is installed along the length of the screening box 1 at the center of the bottom inner side of the screening box 1. A V-shaped partition 4 is installed on the end of the straight partition 3 near the opening structure. A frame 5 is installed on the inner wall of the screening box 1, the straight partition 3, and the V-shaped partition 4. Two openings 6 are opened on the frame 5, which are located on both sides of the straight partition 3. Two screening troughs 8 are movably installed on the frame 5 through the mounting assembly 7. The two screening troughs 8 are installed corresponding to the two openings 6. Each screening trough 8 has an opening structure at the end near the V-shaped partition 4. The lower wall of each screening trough 8 has a mesh structure. A feeding structure is embedded at the end of the screening box 1 away from the opening structure. A shielding structure is installed at the top of the screening box 1.

[0024] It should be noted that in actual production, multiple screening troughs 8 can be prepared, with two screening troughs 8 having the same mesh size and the remaining screening troughs 8 having different mesh sizes. The screening troughs 8 can be movably installed on the frame 5 through the mounting component 7. When only rice needs to be screened, two screening troughs 8 with the same mesh size can be installed on the frame 5. If two crops need to be screened at the same time, i.e., rice is screened on one side and other crops are screened on the other side, the two screening troughs 8 on the frame 5 can be replaced with two screening troughs 8 with different mesh sizes.

[0025] Specifically, the feeding structure includes a main channel 9, which is a closed structure located outside the screening box 1. The main channel 9 is embedded in the wall of the screening box 1 away from the opening structure. Two branch channels 10 are provided at one end of the main channel 9. One end of the two branch channels 10 is respectively set with two screening troughs 8. Feeding pipes 11 are provided on the upper walls of the main channel 9 and the two branch channels 10.

[0026] It should be noted that if only rice needs to be screened, the rice is added into the device through the feeding pipe 11 on the main channel 9. The rice enters the branch channels 10 on both sides through the main channel 9, and then enters the screening troughs 8 on both sides. Under the support of the support frame, the vibration motor 2 makes the screening box 1 vibrate. Impurities remain in the screening trough 8, while the screened rice falls into the screening box 1. Both impurities and rice move towards the opening of the screening box 1. The staff can collect the impurities and rice at the opening of the screening box 1 respectively.

[0027] If only two crops need to be screened at the same time, rice and other crops are added to the device from the feeding pipes 11 on the two branch channels 10 respectively. The two crops are screened through two screening troughs 8 and fall into the two sides of the straight partition 3 respectively. The straight partition 3 is used to prevent the crops on both sides from mixing. After the vibration motor 2 works, the two screened crops are separated by the V-shaped partition 4 and flow to the two sides respectively. Two containers are used to receive the two crops, and one container is used to receive the debris on the screening trough 8.

[0028] Specifically, the installation component 7 includes multiple fixed seats 71, which are symmetrically installed on the upper wall of the frame 5 with the notch 6 as the center. Multiple connecting blocks 72 are installed on the two side walls of the screening tank 8. The multiple connecting blocks 72 are set one-to-one with the multiple fixed seats 71. Bolts 73 are movably inserted into each of the multiple connecting blocks 72. The bolts 73 are movably inserted into the fixed seats 71 through threads.

[0029] It should be noted that the disassembly and installation of the screening trough 8 can be completed by tightening or loosening the bolts 73. The operation is simple and it is convenient to replace the screening trough 8 with different mesh sizes according to different screening requirements.

[0030] Specifically, the shielding structure includes a cover 12, which is movably fastened to the upper end of the screening box 1, and the feeding pipe 11 is movably inserted into the cover 12. A discharge pipe 13 is inserted into the end of the cover 12 near the V-shaped partition 4.

[0031] It should be noted that the cover 12 and the screening box 1 can be connected by threaded connectors, such as screws and bolts 73, to cover the upper part of the screening box 1. The ash discharge pipe 13 can be connected to a vacuum cleaner to clean the dust generated during screening.

[0032] Specifically, the support frame includes multiple uprights 14, each upright is equipped with a spring 15, and a connecting frame 16 is installed on the spring 15. The connecting frame 16 is installed on the outer wall of the screening box 1.

[0033] It should be noted that the device is erected on the ground by the support 14, and the screening box 1 is connected to the spring 15 by the connecting frame 16. Under the elastic action of the spring 15, the screening box 1 can vibrate up and down to achieve crop screening.

[0034] As a preferred and further option, one end of the screening trough 8 extends outside the screening box 1 to facilitate the separate collection of crops and impurities.

[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 screening device for rice production, comprising a support frame, on which a screening box (1) is mounted, one end wall of the screening box (1) in the longitudinal direction being an open structure, and a vibrating motor (2) mounted on the side wall of the screening box (1), characterized in that, A partition screening structure is installed on the inner wall of the screening box (1); The separation screening structure includes a straight partition (3), which is installed along the length of the screening box (1) at the center of the bottom inner side of the screening box (1). A V-shaped partition (4) is installed on the end of the straight partition (3) near the opening structure. A frame (5) is installed on the inner wall of the screening box (1), the straight partition (3), and the V-shaped partition (4). Two notches (6) are opened on the frame (5). The two notches (6) are located on both sides of the straight partition (3). Two screening troughs (8) are movably installed on the frame (5) through the installation component (7). The two screening troughs (8) are installed corresponding to the two notches (6). Each screening trough (8) has an opening structure at the end near the V-shaped partition (4). The lower wall of each screening trough (8) has a mesh structure. A feeding structure is embedded at the end of the screening box (1) away from the opening structure. A shielding structure is installed at the upper end of the screening box (1).

2. The screening device for rice production according to claim 1, characterized in that, The feeding structure includes a main channel (9), which is a closed structure located outside the screening box (1). The main channel (9) is embedded in the wall of the screening box (1) away from the opening structure. Two branch channels (10) are provided at one end of the main channel (9). One end of the two branch channels (10) is respectively provided with the two screening troughs (8). Feeding pipes (11) are provided on the upper walls of the main channel (9) and the two branch channels (10).

3. The screening device for rice production according to claim 1, characterized in that, The installation assembly (7) includes multiple fixed seats (71), which are symmetrically installed on the upper wall of the frame (5) with the notch (6) as the center. Multiple connecting blocks (72) are installed on the two side walls of the screening tank (8). The multiple connecting blocks (72) are arranged one-to-one with the multiple fixed seats (71). Bolts (73) are movably inserted on each of the multiple connecting blocks (72). The bolts (73) are movably inserted into the fixed seats (71) by threads.

4. A screening device for rice production according to claim 2, characterized in that, The shielding structure includes a cover (12), which is movably fastened to the upper end of the screening box (1), and the feeding pipe (11) is movably inserted into the cover (12). A ash discharge pipe (13) is inserted into one end of the cover (12) near the V-shaped partition (4).

5. A screening device for rice production according to claim 1, characterized in that, The support frame includes multiple legs (14), each of which is equipped with a spring (15). A connecting frame (16) is installed on each spring (15), and the connecting frame (16) is installed on the outer wall of the screening box (1).

6. A screening device for rice production according to claim 1, characterized in that, One end of the screening trough (8) extends outside the screening box (1).

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