Rice screening device

By introducing adjustable screening components and dust collection components into the rice screening device, the problems of poor adaptability to different rice varieties and dust scattering have been solved, achieving efficient screening and dust collection, and improving the practicality and operational efficiency of the device.

CN224087269UActive Publication Date: 2026-04-07ZHAOYU FAMILY FARM WANJUN DISTRICT (INDIVIDUAL IND & COMMERCIAL HOUSEHOLDS)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing rice screening devices are not very adaptable to different varieties and sizes, and floating dust is prone to fall during the screening process, increasing the possibility of dust escape.

Method used

A rice screening device was designed, comprising a screening component with adjustable screening spacing and a dust collection component. The gap between the lower screening plate is adjusted by a chute and a slide bar. Combined with a filter plate, a protective cavity, and a fan, floating dust is collected, achieving adaptive screening for different varieties of rice and reducing dust dispersion.

Benefits of technology

This improved the device's adaptability to different rice varieties, reduced unnecessary harvest losses, increased screening efficiency, effectively reduced the possibility of dust escaping, and extended the service life of the blower.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a rice screening device which comprises a box body, a motor and a draught fan, the top of the box body is connected with a cover plate through a damping bearing, the top of the cover plate is provided with a feeding port, a screening assembly is arranged in the box body, and a collecting assembly is arranged in the box body. The device is provided with the screening assembly, through the screening assembly, the device can adapt to screening of most rice of different varieties and sizes, targeted adjustment of the rice is achieved, unnecessary harvesting loss is avoided, the screening efficiency is improved to a certain degree, and the practicability of the device is well improved; and secondly, the device is provided with a collecting assembly, through the collecting assembly, the possibility that dust enters the draught fan in the collecting process is reduced, through the acting force of the draught fan, the filtered dust can be collected by the draught fan and fall into a collecting box, and the situation that the dust escapes is reduced to a certain degree.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rice screening technical field, concretely is a rice screening device. BACKGROUND

[0002] Rice is annual aquatic herbaceous plant of gramineae, is one of main food sources of human, the fruit of rice that rice is tied is rice, is rice or rice after shelling that people often say, rice will inevitably mix some impurities in the growth, harvesting and storage process, rice screening device is used for screening, removing impurity and cleaning special equipment of rice, one of indispensable equipment in the rice planting and processing process, the continuous optimization of its design and function will help to improve the precision and efficiency of rice screening.

[0003] The patent literature with the publication number CN208513020U in the prior art provides: a screening device for rice, including box, both sides of the bottom of the box are fixedly connected with support leg, the center of the top of the box inner chamber is equipped with the placing mouth, both sides of the top of the box inner chamber are equipped with the chute, both sides of the top of the box inner chamber are fixedly connected with electric telescopic rod, the bottom of the electric telescopic rod is fixedly connected with the screening frame, the inner side of the screening frame is fixedly connected with the screening net.The utility model discloses a heating net board, an air outlet pipe, an air inlet pipe, a fan, an air exhaust pipe, an air outlet nozzle, a discharging cone and a micro air inlet hole are used in cooperation, can effectively dry rice, so that the use effect of the rice screening device is better, solve the problem that the use effect of the rice screening device is poor when using the rice screening device because the rice screening device does not have the function of drying, so that the moisture content of the screened rice is high.

[0004] Although the device has many beneficial effects, but still has the following problems: the device often does not have the function of adjusting the screening distance in the screening process, for different varieties and sizes of rice, the applicability is poor, secondly, the screening process of rice is often prone to floating dust scattering, the floating dust collection function of the device is less, which increases the possibility of dust dispersion to a certain extent. SUMMARY

[0005] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] 1. Technical problems to be solved:

[0007] To address the aforementioned problems of poor adaptability to different varieties and sizes of rice and difficulty in collecting scattered dust, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a rice screening device, which aims to solve the problem of poor adaptability to different varieties and sizes of rice and to minimize the occurrence of dust spillage.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A rice screening device includes a housing, a motor, and a fan. The top of the housing is connected to a cover plate via a damping bearing. The top of the cover plate has a feed inlet. The housing contains screening components and a collection component.

[0012] In a preferred embodiment of the rice screening device of this utility model, the screening component includes a screening lower plate, a sliding groove is formed inside the screening lower plate, a sliding strip is provided on the inner wall of the sliding groove, there are multiple sliding strips, positioning holes are formed on the surface of the sliding strips, and positioning grooves are formed on the circumferential surface of the screening lower plate, the number of positioning grooves is the same as the number of positioning holes.

[0013] In a preferred embodiment of the rice screening device of this utility model, the screening assembly includes an upper screening plate, the bottom of which is connected to a lower screening plate via a damping bearing. A screening column is provided below the upper screening plate, and a fixed shaft is provided on the inner circumference of the screening column. One end of the fixed shaft is inserted into the interior of the motor. A fixing plate is provided on the side of the upper screening plate, and a housing is bolted to the side of the fixing plate.

[0014] In a preferred embodiment of the rice screening device of this utility model, the collection component includes a filter plate, a protective cavity is provided below the filter plate, a fixing member is bolted to the inner wall of the protective cavity, a fan is bolted to one end of the fixing member, a mesh is bolted to the surface of the protective cavity, a handle is provided on the side of the protective cavity, a collection box is provided below the protective cavity, and a handle is bolted to the surface of the collection box.

[0015] In a preferred embodiment of the rice screening device of this utility model, a discharge port is provided on the side of the box, the motor is provided on the side of the box, and a support frame is provided at the bottom of the motor.

[0016] In a preferred embodiment of the rice screening device of this utility model, a switch is provided on the side of the box, and the switch is electrically connected to the fan.

[0017] In a preferred embodiment of the rice screening device of this utility model, there are multiple fixing members, which are distributed at equal intervals.

[0018] 3. Beneficial effects:

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This rice screening device includes a screening component, which comprises a screening lower plate. The screening lower plate has a groove inside, and a sliding strip is slidably connected to the inner wall of the groove. By adjusting the position of the sliding strip, the gap of the screening lower plate can be adjusted, thus enabling the device to adapt to screening most different varieties and sizes of rice. This achieves targeted adjustment for rice, avoids unnecessary harvest losses, improves screening efficiency to a certain extent, and greatly increases the practicality of the device.

[0021] This rice screening device includes a collection component comprising a filter plate, a protective chamber below the filter plate, and a collection box below the protective chamber. A fan is installed inside the protective chamber. The protective chamber reduces the possibility of dust entering the fan during the collection process. The force of the fan collects the filtered dust into the collection box, thus reducing dust dispersion to a certain extent. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the overall structure of a rice screening device according to the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of a rice screening device according to the present invention;

[0025] Figure 3 This is an exploded view of the screening component structure of a rice screening device according to the present invention;

[0026] Figure 4 This utility model relates to a rice screening device. Figure 3 A schematic diagram of the structure of section A in the middle;

[0027] Figure 5 This is a schematic diagram of the collection component structure of a rice screening device according to the present invention.

[0028] The following are the labels in the diagram: 1. Box body; 2. Feed inlet; 3. Cover plate; 4. Discharge outlet; 5. Switch; 6. Motor; 7. Support frame; 8. Screening assembly; 801. Fixing plate; 802. Upper screening plate; 803. Screening column; 804. Fixing shaft; 805. Lower screening plate; 806. Positioning hole; 807. Sliding bar; 808. Sliding groove; 809. Positioning groove; 9. Collection assembly; 901. Handle; 902. Protective cavity; 903. Mesh screen; 904. Fixing component; 905. Fan; 906. Collection box; 907. Handle; 908. Filter plate. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0031] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to 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 the present invention.

[0032] The term "connection method" should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0034] This utility model provides an overall structural diagram of an embodiment of a rice screening device, including:

[0035] Please see Figures 1-5 This utility model provides a technical solution:

[0036] A rice screening device includes a housing 1, a motor 6, and a fan 905. The top of the housing 1 is connected to a cover plate 3 via a damping bearing. The top of the cover plate 3 has a feed inlet 2 through which the rice to be screened is poured into the interior of the device. The housing 1 is equipped with a screening component 8 and a collection component 9. Through the screening component 8 and the collection component 9, the screening efficiency and dust collection can be improved to a certain extent.

[0037] It is worth noting that, in order to better adapt to rice screening of different sizes, the screening component 8 specifically includes a screening lower plate 805. The screening lower plate 805 has a sliding groove 808 inside. The inner wall of the sliding groove 808 is provided with sliding connecting strips 807. There are multiple strips 807. The surface of the strips 807 has positioning holes 806. The circumferential surface of the screening lower plate 805 has positioning grooves 809. The number of positioning grooves 809 is the same as the number of positioning holes 806. The positioning holes 806 and positioning grooves 809 are connected by bolts to fix the strips 807. If the gap needs to be adjusted, the bolts can be removed and the strips 807 can be pulled out.

[0038] Next, in order to better screen the rice, the screening assembly 8 specifically includes a screening upper plate 802. The bottom of the screening upper plate 802 is connected to the screening lower plate 805 through a damping bearing. A screening column 803 is set below the screening upper plate 802. The inner circumference of the screening column 803 is bolted to a fixed shaft 804. One end of the fixed shaft 804 is inserted into the motor 6. The side of the screening upper plate 802 is bolted to a fixed plate 801. The side of the fixed plate 801 is bolted to a housing 1. The motor 6 drives the fixed shaft 804 to rotate, thereby causing the screening column 803 to start moving, thus screening the rice.

[0039] Meanwhile, to better collect floating dust, the collection component 9 specifically includes a filter plate 908, a protective cavity 902 below the filter plate 908, a fastener 904 bolted to the inner wall of the protective cavity 902, a blower 905 bolted to one end of the fastener 904, a mesh screen 903 bolted to the surface of the protective cavity 902, a handle 901 bolted to the side of the protective cavity 902, and a collection box 906 below the protective cavity 902. A handle 907 bolted to the surface of the collection box 906. By starting the blower 905, the floating dust generated during the screening process falls and is collected. The design of the mesh screen 903 and the protective cavity 902 reduces the possibility of floating dust entering the blower 905, thereby protecting the service life of the blower 905. The collection box 906 allows the floating dust to be collected and centrally processed, reducing the occurrence of dust scattering.

[0040] Furthermore, in order to collect the screened rice, specifically, a discharge port 4 is opened on the side of the box 1, a motor 6 is installed on the side of the box 1, and a support frame 7 is installed at the bottom of the motor 6. Through the design of the discharge port 4, the rice can be discharged better after being screened.

[0041] It is worth noting that, in order to better operate the fan 905, a switch 5 is provided on the side of the housing 1. The switch 5 is electrically connected to the fan 905. The electrical connection of the switch 5 to the fan 905 makes it easier for the staff to operate and reduces the difficulty of operation to a certain extent.

[0042] Finally, in order to better collect floating ash, there are multiple fasteners 904, which are evenly distributed. The fan 905 is fixed by multiple fasteners 904, which facilitates better collection of floating ash during the screening process.

[0043] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0044] The device or equipment models mentioned in this article may be as follows:

[0045] Motor: STEP-085-17;

[0046] Fan: GD30K2-12.

[0047] Combination Figures 1-5 The rice screening device of this embodiment is used in the following specific process:

[0048] 1. When using this rice screening device, it needs to be moved to a suitable position. The top of the box 1 is connected to a cover plate 3 via a damping bearing. The top of the cover plate 3 has a feed inlet 2. The worker pours the rice to be screened into the feed inlet 2. The box 1 is equipped with a screening assembly 8, which includes a screening upper plate 802. The bottom of the screening upper plate 802 is connected to a screening lower plate 805 via a damping bearing. A screening column 803 is set below the screening upper plate 802. The inner circumference of the screening column 803 is bolted to a fixing shaft 804. One end of 804 is inserted into the interior of motor 6. The bottom of motor 6 is bolted to support frame 7. The side of screening upper plate 802 is bolted to fixing plate 801. The side of fixing plate 801 is bolted to housing 1. By starting motor 6, the fixed shaft 804 is driven, so that screening column 803 starts to move with fixed shaft 804 as the center. Rice is screened in the space formed by the surface of screening column 803 and screening upper plate 802 and screening lower plate 805. The side of housing 1 has discharge port 4, and the screened rice can be discharged through discharge port 4.

[0049] 2. When the size of the rice being screened varies and needs adjustment, the operator can open the cover plate 3 and then open the screening lower plate 805. The screening lower plate 805 has a sliding groove 808 inside, and the inner wall of the sliding groove 808 is slidably connected to a sliding strip 807. There are multiple sliding strips 807, and the surface of the sliding strip 807 has positioning holes 806. The circumferential surface of the screening lower plate 805 has positioning grooves 809, and the number of positioning grooves 809 is the same as the number of positioning holes 806. When the screening gap needs to be adjusted, the operator can remove the bolts that are threaded to the inner walls of the positioning holes 806 and positioning grooves 809 with the same inner diameter, and pull out the sliding strips 807, thereby changing the screening gap. This achieves targeted adjustment of the rice, reduces unnecessary losses, improves screening efficiency to a certain extent, and greatly increases the practicality of the device.

[0050] 3. When dust is scattered during the screening process, the device is equipped with a collection component 9, which includes a filter plate 908. The inclined design of the filter plate 908 allows the screened rice to be discharged along the slope. Below the filter plate 908 is a protective cavity 902. Multiple fasteners 904 are bolted to the inner wall of the protective cavity 902. One end of each fastener 904 is bolted to a fan 905. The fan 905, connected by multiple fasteners 904, facilitates the absorption of dust generated during the screening process. A switch 5 is located on the side of the housing 1, and the fan 905 is electrically connected to the switch 5, allowing operators to easily operate the fan 905. To a certain extent, this is beneficial to improving work efficiency. The protective cavity 902 is bolted to a mesh 903. Through the mesh 903, the dust adsorbed by the fan 905 is reduced from entering the fan 905, thus extending the service life of the fan 905. A handle 901 is provided on the side of the protective cavity 902. Using the handle 901, the protective cavity 902 can be pulled out to clean the dust on the mesh 903, thereby facilitating the stable operation of the device. A collection box 906 is provided below the protective cavity 902. The surface of the collection box 906 is bolted to a handle 907. Using the collection box 906, it is convenient for workers to collect and dispose of the dust, reducing the occurrence of dust escaping.

[0051] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A rice screening device, characterized in that, It includes a housing (1), a motor (6) and a fan (905). The top of the housing (1) is connected to a cover plate (3) via a damping bearing. The top of the cover plate (3) is provided with a feed inlet (2). The inside of the housing (1) is provided with a screening component (8) and a collection component (9).

2. The rice screening device according to claim 1, characterized in that, The screening assembly (8) includes a screening lower plate (805), the screening lower plate (805) has a sliding groove (808) inside, the inner wall of the sliding groove (808) is provided with a sliding strip (807), there are multiple sliding strips (807), the surface of the sliding strip (807) is provided with a positioning hole (806), and the circumferential surface of the screening lower plate (805) is provided with a positioning groove (809), the number of positioning grooves (809) is the same as the number of positioning holes (806).

3. The rice screening device according to claim 2, characterized in that, The screening assembly (8) includes a screening upper plate (802), the bottom of which is connected to the screening lower plate (805) via a damping bearing. A screening column (803) is provided below the screening upper plate (802), and a fixed shaft (804) is provided on the inner circumference of the screening column (803). One end of the fixed shaft (804) is inserted into the motor (6). A fixing plate (801) is provided on the side of the screening upper plate (802), and a housing (1) is bolted to the side of the fixing plate (801).

4. The rice screening device according to claim 1, characterized in that, The collection assembly (9) includes a filter plate (908), a protective cavity (902) is provided below the filter plate (908), a fastener (904) is bolted to the inner wall of the protective cavity (902), a fan (905) is bolted to one end of the fastener (904), a mesh screen (903) is bolted to the surface of the protective cavity (902), a handle (901) is provided on the side of the protective cavity (902), a collection box (906) is provided below the protective cavity (902), and a handle (907) is bolted to the surface of the collection box (906).

5. The rice screening device according to claim 1, characterized in that, The side of the box (1) has a discharge port (4), the side of the box (1) is provided with the motor (6), and the bottom of the motor (6) is provided with a support frame (7).

6. The rice screening device according to claim 1, characterized in that, A switch (5) is provided on the side of the housing (1), and the switch (5) is electrically connected to the fan (905).

7. The rice screening device according to claim 4, characterized in that, There are multiple fasteners (904), and the fasteners (904) are distributed at equal intervals.

Citation Information

Patent Citations

  • Screening plant is used to rice

    CN208513020U