Rice threshing device

Abstract

The utility model discloses a rice threshing device which comprises a first shell, a rice beating assembly, a rice straw conveying assembly and a power source. Wherein the interior of the first shell is hollow; the rice beating assembly is connected with the first shell; the rice beating assembly comprises a beating roller arranged in the first shell; one side of the first shell is provided with a feeding window used for allowing rice straw to penetrate into the first shell, and the feeding window is provided with a rice straw conveying assembly in parallel. Wherein the rice straw conveying assembly can convey bundled rice straws from a feeding window to be in contact with a beating roller and can gradually spread the bundled rice straws on the beating roller in the process of conveying in a manner of inclining to the beating roller, and grains in rice ears can be threshed in the direction away from the roots of the rice straws through rotating rolling; the rice straw conveying assembly is used for conveying the rice straw, so that the completeness of a rice straw main body can be effectively ensured, and the conveyed rice straw can be used for weaving and manufacturing various handicrafts.

Description

Technical Field

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

[0002] Rice stalks have a tough fibrous structure, making them suitable for weaving and crafting various handicrafts such as baskets, hats, and mats. These items are not only aesthetically pleasing and practical but also bring economic benefits. To ensure the quality and durability of rice stalk handicrafts, it is essential to select straight, dry stalks that are free from mold and insect damage.

[0003] A rice threshing device is a mechanical device used to separate the grains from the stalks of rice. Rice threshing devices can be divided into several types. For example, common types include axial-flow threshing devices and drum threshing devices. These types of threshing devices typically require the rice stalks to be directly fed into the drums inside the device for threshing and agitation before being discharged. The discharged rice stalks are often incomplete and cannot be further woven or used to make various handicrafts. Utility Model Content

[0004] To address the technical problems existing in the prior art, the purpose of this utility model is to provide a rice threshing device. The rice straw conveying component can transmit bundled rice straws from the feed window to contact the beating roller. During the transmission process at an incline to the beating roller, the bundled rice straws can be gradually spread on the beating roller. The rotating rolling action can thresh the grains in the rice ears in a direction away from the root of the rice straw. The rice straw conveying component can effectively ensure the integrity of the rice straw body. The transmitted rice straws can be used for weaving and making various handicrafts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rice threshing device, comprising: a first shell, wherein the interior of the first shell is hollow;

[0006] A rice beating assembly, wherein the rice beating assembly is connected to the first housing; the rice beating assembly includes a beating roller disposed inside the first housing;

[0007] A rice straw conveying assembly includes a feeding window on one side of the first housing for rice straws to pass through. The feeding window is tilted relative to the axial direction of the beating roller, and the rice straw conveying assembly is installed parallel to the feeding window. The rice straw conveying assembly can transfer bundled rice straws from the feeding window to contact the beating roller, and during the process of conveying at an incline relative to the beating roller, it can spread the bundled rice straws on the beating roller. The rice beating assembly and the rice straw conveying assembly are electrically connected to a power source.

[0008] Furthermore, as a more preferred embodiment of this utility model, the rice-beating component includes:

[0009] A threshing power unit is disposed at the top center of the first housing;

[0010] The striking roller includes a rotating shaft and at least one striking rod, the striking rod being arranged around the rotating shaft;

[0011] One end of the rotating shaft extends out of the first housing and is connected to the output end of the threshing power component.

[0012] The striking rod is provided with at least one grain-clamping protrusion that can contact the rice grains on the rice stalk.

[0013] Furthermore, in a more preferred embodiment of this utility model, the position of the rice straw conveying component corresponds to the position of the at least one striking rod. The rice straw conveying component can convey rice straws with rice grains to the striking drum. The threshing power component can drive the striking drum to rotate. The striking rod can strike the rice straws so that the rice grains fall off in a direction away from the rice straw conveying component.

[0014] The at least one striking rod is U-shaped, with both ends of the U-shape fixedly connected to the rotating shaft, and a concave portion provided in the middle of the U-shape; or

[0015] The striking rod is V-shaped, and the two ends of the V-shaped opening are fixedly connected to the rotating shaft.

[0016] Furthermore, as a more preferred embodiment of this utility model, the rice straw conveying assembly includes:

[0017] The first connecting plate is provided on the top of one side of the feed window;

[0018] The second connecting plate is provided at the bottom of one side of the feed window;

[0019] The first conveyor belt mechanism is mounted on the bottom of the first connecting plate.

[0020] The second conveyor belt mechanism is mounted on the top of the second connecting plate;

[0021] The first conveyor belt mechanism and the second conveyor belt mechanism can transmit the roots of the bundled rice stalks so that the tail of the rice stalks can enter the first housing through the feed window and come into contact with the rice threshing component to perform threshing.

[0022] Furthermore, as a more preferred embodiment of this utility model, the rice straw conveying assembly further includes a guide plate, which is disposed on the outer side of the feeding window, and the bottom of the guide plate is connected to the second connecting plate; the guide plate is provided with a slope portion, and the opening between the slope portion and the feeding window narrows as it goes down, and the slope portion can guide the rice straw from top to bottom between the first conveyor belt mechanism and the second conveyor belt mechanism; the top of the guide plate is provided with a pre-discharge plane portion extending outward.

[0023] Furthermore, as a more preferred embodiment of the present invention, it also includes a second housing and a coarse screen assembly disposed inside the second housing, wherein the top of the second housing is connected to the top of the first housing;

[0024] The bottom of the first shell is provided with a rice discharge port, which is connected to the interior of the second shell;

[0025] The coarse screening assembly includes:

[0026] A first transmission component is tilted to one side and is connected to the inner wall of the second housing;

[0027] A second transmission component is inclined to the other side. The second transmission component is located at the bottom of the first transmission component. The second transmission component is connected to the inner wall of the second housing. The second housing is provided with a discharge window that is adapted to the tail of the second transmission component.

[0028] A blower is provided, with the second housing positioned between the first and second transmission components. The blower's air outlet is adapted to the transmission direction of the first transmission component. The second housing is provided with a waste outlet adapted to the blower. Rice grains falling from the rice discharge port can fall onto the first transmission component, which can transport the rice grains and drop them onto the top of the slope of the second transmission component. The blower can blow impurities mixed with the rice grains out of the waste outlet during the rice grains' fall.

[0029] Furthermore, as a more preferred embodiment of this utility model, it also includes a walking mechanism, wherein the walking mechanism is disposed at the bottom of the second housing, and the power supply is disposed at the bottom of the second housing.

[0030] Furthermore, as a more preferred embodiment of this utility model, it also includes a control panel and a support frame for supporting the control panel. The support frame is connected to the second housing, and the control panel is electrically connected to the rice beating assembly, the rice straw conveying assembly, the coarse screening assembly, and the walking mechanism, respectively.

[0031] Furthermore, as a more preferred embodiment of this utility model, the first conveyor belt mechanism includes:

[0032] At least two rollers, a conveyor belt is provided between the at least two rollers, a drive sprocket is provided on one side of each of the at least two rollers, and a chain is provided between the drive sprockets;

[0033] A drive motor is mounted on the first housing, and the output shaft of the drive motor is connected to the at least two rollers or the drive sprocket.

[0034] Furthermore, as a more preferred embodiment of the present invention, the first transmission member is connected to the inner wall of the second housing via a first vibrator; the second transmission member is connected to the inner wall of the second housing via a second vibrator.

[0035] A rice threshing device includes a rice straw conveying assembly that transports bundled rice straws from an inlet window to a striking drum. During this inclined conveying process, the bundled straws are gradually spread across the drum. The rotating drum threshes the rice grains away from the base of the straw. The conveying assembly effectively maintains the integrity of the rice straws, and the resulting straws can be used for weaving and making various handicrafts. Specifically, the rice straw conveying assembly can transport the straws at an incline, allowing the rice ears to spread out at an angle on the drum, resulting in more thorough contact between the rice ears and the drum surface, and more complete threshing. Attached Figure Description

[0036] Figure 1 This is a schematic diagram showing the structure of the rice threshing device in the embodiment.

[0037] Figure 2 This is a schematic diagram of the structure of a striking roller in one embodiment.

[0038] Figure 3 This is a perspective view of another type of striking roller in the embodiment.

[0039] Figure 4 This is a schematic diagram showing the structure of a rice threshing device in one of the embodiments.

[0040] Figure 5 This is a schematic diagram of the structure of the rice straw conveying component in the embodiment, which is inclinedly arranged on the striking roller.

[0041] Figure 6 This is a schematic diagram showing the structure of another rice threshing device in the embodiment.

[0042] Figure 7 This is a schematic diagram of the overall structure of the rice threshing device in the embodiment.

[0043] Figure label:

[0044] 1-First housing, 11-Infeed window.

[0045] 2-Rice threshing assembly, 21-Threshing roller, 211-Rotating shaft, 212-Threshing rod, 213-Grain-locking protrusion, 22-Threshing power component.

[0046] 3-Rice straw conveying assembly, 31-First connecting plate, 32-Second connecting plate, 33-First conveyor belt mechanism, 331-Roller, 332-Conveyor belt, 333-Drive sprocket, 334-Chain, 34-Second conveyor belt mechanism, 35-Guide plate, 351-Slope section.

[0047] 4-Power supply.

[0048] 5-Second shell, 51-Discharge window, 52-Waste outlet.

[0049] 6-Coarse screening assembly, 61-First transmission component, 62-Second transmission component, 63-Blower, 64-First vibrator, 65-Second vibrator.

[0050] 7- Walking mechanism.

[0051] 8-Control Panel.

[0052] 9-Support frame. Detailed Implementation

[0053] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0055] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0057] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0058] Example

[0059] This embodiment aims to address the problem in existing rice threshing devices that typically require rice stalks to be directly fed into the internal drums for threshing before being discharged. This results in the rice stalks being partially damaged upon discharge, making further weaving and crafting of various handicrafts impossible. Therefore, referring to… Figure 1-7 As shown, this embodiment provides a rice threshing device. The rice straw conveying assembly 3 can convey bundled rice straws from the feed window 11 to contact the beating roller 21. During the process of conveying the straws at an incline to the beating roller 21, the bundled rice straws can be gradually spread out on the beating roller 21. The rotating roller can thresh the rice grains in the rice ears in a direction away from the root of the rice straw. The rice straw conveying assembly 3 can effectively ensure the integrity of the rice straw body. The conveyed rice straws can be used for weaving and making various handicrafts. In particular, the rice straw conveying assembly 3 can convey the rice straws at an incline, so that the rice ears are gradually spread out on the beating roller 21 at an incline, allowing the rice ears to make more full contact with the surface of the beating roller 21, resulting in more complete threshing.

[0060] Reference Figure 1 and 5As shown, the rice threshing device includes: a first housing 1, a rice beating assembly 2, a rice straw conveying assembly 3, and a power supply 4. The first housing 1 is hollow, with its internal space used for threshing the rice grains. The rice beating assembly 2 is connected to the first housing 1 and includes a beating roller 21 disposed inside the first housing 1. The beating roller 21 can be driven to rotate, beating the rice ears it contacts to cause the grains to fall off. A feeding window 11 is provided on one side of the first housing 1 for rice straw to enter the first housing 1. The feeding window 11 is tilted relative to the axial direction of the beating roller 21, and the rice straw conveying assembly 3 is installed parallel to the feeding window 11. The rice straw conveying assembly 3 can transfer bundled rice straw from the feeding window 11 to contact the beating roller 21, and during the process of transferring it at an incline relative to the beating roller 21, it can spread the bundled rice straw onto the beating roller 21. The rice threshing component 2 and the rice stalk conveying component 3 are electrically connected to the power supply 4, which, for example, can be an existing storage battery.

[0061] Reference Figure 2 and 3 As shown, the rice threshing assembly 2 includes a threshing power component 22. The threshing power component 22 is located at the top center of the first housing 1; the threshing drum 21 includes a rotating shaft 211 and at least one threshing rod 212, which is arranged around the rotating shaft 211; one end of the rotating shaft 211 extends out of the first housing 1 and is connected to the output end of the threshing power component 22; the threshing rod 212 is provided with at least one grain-clamping protrusion 213, which can contact the rice grains on the rice stalk. When the rice ears gradually spread out on the threshing drum 21 at an angle, the grain-clamping protrusion 213 can clamp onto the root of the grains on the rice ears, and can knock them off during high-speed rotation, thereby improving the threshing efficiency of the device.

[0062] Reference Figure 2 and 3As shown, in some embodiments, the position of the rice straw conveying assembly 3 corresponds to the position of at least one striking rod 212. The rice straw conveying assembly 3 can convey rice straws with rice grains to the striking drum 21. The threshing power unit 22 can drive the striking drum 21 to rotate. The striking rod 212 can strike the rice straws and cause the rice grains to fall off in a direction away from the rice straw conveying assembly 3. At least one of the striking rods 212 is U-shaped, with the two ends of the U-shaped opening fixedly connected to the rotating shaft 211, and a concave portion 214 provided in the middle of the U-shaped part; for example, 12 striking rods 212 are arranged around a rotating shaft 211, the concave portion 214 is arc-shaped, the rice straw conveying assembly 3 is arranged obliquely downward, during the transmission of the rice straw, it can start to contact from the middle of the arc-shaped concave portion of the striking rod 212 on one side, and during the oblique downward transmission process, the rice ears and the striking rods 212 are pressed tighter and tighter, and gradually spread down the slope of the arc-shaped concave portion, so that the bundled rice ears can contact multiple striking rods 212 with a larger area, that is, can contact more grain-clamping protrusions and be struck to make the grains fall off. Similarly, in some embodiments, the striking rod 212 is V-shaped, with the two ends of the V-shaped opening fixedly connected to the rotating shaft 211. During the downward transmission of the rice stalks, they first contact one side of the top of the striking rod 212. The rice ears press against the striking rod 212 more and more tightly, and gradually spread towards the V-shaped slope. The bundled rice ears can contact multiple striking rods 212 over a larger area.

[0063] Reference Figure 4 and 5 As shown, the rice stalk conveying assembly 3 includes a first connecting plate 31, a second connecting plate 32, a first conveyor belt mechanism 33, and a second conveyor belt mechanism 34. The first connecting plate 31 is located at the top of one side of the feeding window 11; the second connecting plate 32 is located at the bottom of one side of the feeding window 11; the first conveyor belt mechanism 33 is installed at the bottom of the first connecting plate 31; and the second conveyor belt mechanism 34 is installed at the top of the second connecting plate 32. The first conveyor belt mechanism 33 and the second conveyor belt mechanism 34 can transmit power between the roots of the bundled rice stalks, allowing the rice ears on the rice stalks to enter the first housing 1 through the feeding window 11 and come into contact with the rice threshing assembly 2 for threshing.

[0064] Reference Figure 4As shown, in some embodiments, the rice straw conveying assembly 3 further includes a guide plate 35. The guide plate 35 is disposed on the outer side of the feeding window 11, and the bottom of the guide plate 35 is connected to the second connecting plate 32. The guide plate 35 is provided with a slope portion 351, and the opening between the slope portion 351 and the feeding window 11 narrows as it descends. The slope portion 351 can guide the rice straw from top to bottom between the first conveyor belt mechanism 33 and the second conveyor belt mechanism 34. The top of the guide plate 35 is provided with a pre-discharge plane portion 352 extending outward. The operator can lift the rice straw and place it smoothly on the pre-discharge plane portion 352 between the slope portion 351 and the feeding window 11. As the opening narrows as it descends, the bundled rice straw can be guided into the feeding window 11, that is, between the first conveyor belt mechanism 33 and the second conveyor belt mechanism 34, improving the efficiency of the user's feeding.

[0065] Reference Figure 4 and 6 As shown, it also includes a second housing 5 and a coarse screening assembly 6 disposed inside the second housing 5. The top of the second housing 5 is connected to the top of the first housing 1; the bottom of the first housing 1 is provided with a rice discharge port, which communicates with the interior of the second housing 5.

[0066] The coarse screening assembly 6 includes a first transmission member 61 inclined to one side, a second transmission member 62 inclined to the other side, and a blower 63. The first transmission member 61 is connected to the inner wall of the second housing 5. The second transmission member 62 is located at the bottom of the first transmission member 61 and is also connected to the inner wall of the second housing 5. The second housing 5 has a discharge window 51 adapted to the tail end of the second transmission member 62, allowing the second transmission member 62 to transfer grains from the discharge window 51 to the outside of the second housing 5. A blower 63 is disposed between the first transmission member 61 and the second transmission member 62 in the second housing 5. The air outlet of the blower 63 is adapted to the transmission direction of the first transmission member 61. The second housing 5 is provided with a waste outlet 52 adapted to the blower 63. Rice grains falling from the rice discharge port can fall onto the first transmission member 61. When the first transmission member 61 transports the rice grains to the tail end, they fall onto the top of the slope of the second transmission member 62. The blower 63 can blow impurities mixed with the rice grains out of the waste outlet 52 during the falling of the rice grains. For example, the first transmission member 61 and the second transmission member 62 can be existing belt conveyors, including two rollers and an elastic conveyor belt wrapped around the two rollers. One of the rollers is connected by a motor, which drives the conveyor belt to move and realize the transportation of rice grains.

[0067] Reference Figure 4 , 6As shown in Figure 7, in some embodiments, a walking mechanism 7 for driving the entire device to move is also included. The walking mechanism 7 is disposed at the bottom of the second housing 5, and a power supply 4 is disposed at the bottom of the second housing 5. For example, the walking mechanism 7 can be an existing tracked walking mechanism 7, such as the tracked walking mechanism in a tracked rice harvester.

[0068] Reference Figure 4 and 7 As shown, in some embodiments, the system also includes a control panel 8 and a support frame 9 for supporting the control panel 8. The support frame 9 is connected to the second housing 5. The control panel 8 is electrically connected to the rice beating assembly 2, the rice straw conveying assembly 3, the coarse screening assembly 6, and the traveling mechanism 7, respectively. The control panel 8 is used to control the opening and closing of the rice beating assembly 2, the rice straw conveying assembly 3, the coarse screening assembly 6, and the traveling mechanism 7.

[0069] Reference Figure 5 As shown, in some embodiments, the first conveyor belt mechanism 33 includes at least two rollers 331 and a drive motor. A conveyor belt 332 is disposed between the at least two rollers 331. For example, an elastic conveyor belt 332 is wrapped between the at least two rollers 331. A drive sprocket 333 is disposed on one side of each of the at least two rollers 331, and a chain 334 is disposed between the drive sprockets 333. For example, multiple rollers 331 can be evenly distributed between the rollers 331 at both ends to increase the support for the conveyor belt 332 in the middle. The drive motor is disposed on the first housing 1, and the output shaft of the drive motor is connected to the at least two rollers or the drive sprockets 333. Similarly, the second conveyor belt mechanism 34 can have the same structure as the first conveyor belt mechanism 33. The bundled rice stalks are larger than the distance between the first conveyor belt mechanism 33 and the second conveyor belt mechanism 34. The rice stalks will be clamped and conveyed when they enter the first conveyor belt mechanism 33 and the second conveyor belt mechanism 34. In some embodiments, the conveyor belt of the first conveyor belt mechanism 33 may have grooves or protrusions evenly distributed to increase the friction on the bundled rice stalks.

[0070] Reference Figure 6 As shown, the first transmission member 61 is connected to the inner wall of the second housing 5 through the first vibrator 64; the second transmission member 62 is connected to the inner wall of the second housing 5 through the second vibrator 65; for example, one end of the first transmission member 61 is rotatably connected to the inner wall of the second housing 5 on both sides, and the other end is provided with the first vibrator 64 connected to the inner wall of the second housing 5. Similarly, the second transmission member 62 can also be a transmission structure with the same transmission member 61.

[0071] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rice threshing device, characterized in that, include: A first housing, the first housing being hollow inside; A rice beating assembly, wherein the rice beating assembly is connected to the first housing; the rice beating assembly includes a beating roller disposed inside the first housing; A rice straw conveying assembly has an inlet window on one side of the first housing for rice straw to pass through the first housing. The inlet window is tilted relative to the axial direction of the beating roller. The rice straw conveying assembly is installed parallel to the inlet window. The rice straw conveying assembly can transfer bundled rice straw from the inlet window to contact the beating roller, and during the process of conveying at an inclination to the beating roller, it can spread the bundled rice straw on the beating roller. The power supply is provided, and the rice pounding assembly and the rice straw conveying assembly are respectively electrically connected to the power supply.

2. The rice threshing device according to claim 1, characterized in that, The rice-beating components include: A threshing power unit is disposed at the top center of the first housing; The striking roller includes a rotating shaft and at least one striking rod, the striking rod being arranged around the rotating shaft; One end of the rotating shaft extends out of the first housing and is connected to the output end of the threshing power component. The striking rod is provided with at least one grain-clamping protrusion that can contact the rice grains on the rice stalk.

3. The rice threshing device according to claim 2, characterized in that, The position of the rice straw conveying component corresponds to the position of the at least one striking rod. The rice straw conveying component can convey rice straws with rice grains to the striking drum. The threshing power component can drive the striking drum to rotate. The striking rod can strike the rice straws so that the rice grains fall off in a direction away from the rice straw conveying component. The at least one striking rod is U-shaped, with both ends of the U-shape fixedly connected to the rotating shaft, and a concave portion provided in the middle of the U-shape; or The striking rod is V-shaped, and the two ends of the V-shaped opening are fixedly connected to the rotating shaft.

4. The rice threshing device according to claim 1, characterized in that, The rice straw conveying assembly includes: The first connecting plate is provided on the top of one side of the feed window; The second connecting plate is provided at the bottom of one side of the feed window; The first conveyor belt mechanism is mounted on the bottom of the first connecting plate. The second conveyor belt mechanism is mounted on the top of the second connecting plate; The first conveyor belt mechanism and the second conveyor belt mechanism can transmit the roots of the bundled rice stalks so that the tail of the rice stalks can enter the first housing through the feed window and come into contact with the rice threshing component to perform threshing.

5. The rice threshing device according to claim 4, characterized in that, The rice straw conveying assembly also includes a guide plate, which is disposed on the outside of the feeding window. The bottom of the guide plate is connected to the second connecting plate. The guide plate is provided with a slope, and the opening between the slope and the feeding window narrows as it goes down. The slope can guide the rice straw from top to bottom between the first conveyor belt mechanism and the second conveyor belt mechanism. The top of the guide plate is provided with a pre-discharge plane extending outward.

6. The rice threshing device according to claim 1, characterized in that, It also includes a second housing and a coarse screening assembly disposed inside the second housing, the top of the second housing being connected to the top of the first housing; The bottom of the first shell is provided with a rice discharge port, which is connected to the interior of the second shell; The coarse screening assembly includes: A first transmission component is inclined to one side and is connected to the inner wall of the second housing; A second transmission component is inclined to the other side. The second transmission component is located at the bottom of the first transmission component. The second transmission component is connected to the inner wall of the second housing. The second housing is provided with a discharge window that is adapted to the tail of the second transmission component. A blower is provided, with the second housing positioned between the first and second transmission components. The blower's air outlet is adapted to the transmission direction of the first transmission component. The second housing is provided with a waste outlet adapted to the blower. Rice grains falling from the rice discharge port can fall onto the first transmission component, which can transport the rice grains and drop them onto the top of the slope of the second transmission component. The blower can blow impurities mixed with the rice grains out of the waste outlet during the rice grains' fall.

7. The rice threshing device according to claim 6, characterized in that, It also includes a walking mechanism, which is located at the bottom of the second housing, and the power supply is located at the bottom of the second housing.

8. The rice threshing device according to claim 7, characterized in that, It also includes a control panel and a support frame for supporting the control panel. The support frame is connected to the second housing. The control panel is electrically connected to the rice beating assembly, the rice straw conveying assembly, the coarse screening assembly and the walking mechanism, respectively.

9. The rice threshing device according to claim 4, characterized in that, The first conveyor belt mechanism includes: At least two rollers, a conveyor belt is provided between the at least two rollers, a drive sprocket is provided on one side of each of the at least two rollers, and a chain is provided between the drive sprockets; A drive motor is mounted on the first housing, and the output shaft of the drive motor is connected to the at least two rollers or the drive sprocket.

10. The rice threshing device according to claim 6, characterized in that, The first transmission component is connected to the inner wall of the second housing via a first vibrator; the second transmission component is connected to the inner wall of the second housing via a second vibrator.

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