Rice single-plant threshing machine capable of preventing rice grains from being damaged
By designing a base, threshing box, and gearbox-driven threshing assembly, the problems of rice grain damage and insufficient environmental adaptability during the threshing process of single-plant rice threshers were solved, thus improving the integrity of rice grains and environmental adaptability.
Patent Information
- Application Number
- CN202520597165.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing single-plant rice threshers are prone to damaging rice grains during the threshing process and are not suitable for threshing needs in different environments.
A single-plant rice thresher was designed, comprising a base, a threshing box, a gearbox, and a threshing assembly. The gearbox drives the threshing assembly to rotate, and the rice grains are guided by a silicone head to reduce crushing damage. The threshing machine can operate without electricity.
It improves the integrity of rice grains, enhances the applicability of the thresher in different environments, and enables threshing operations without electricity.
Smart Images
Figure CN223816534U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rice threshing technology, and in particular relates to a rice single-plant threshing machine that prevents damage to rice grains. Background Technology
[0002] A single-plant rice thresher is a small electric thresher used in laboratories to thresh rice from individual plants or panicles. Before operation, the equipment should be thoroughly cleaned and inspected, all bearing covers should be opened, and oil and debris removed. Before each shift, the tension of the drive belt and the clearance of the mating parts should be checked and adjusted if necessary. Single-plant rice threshers are widely used in agricultural research and breeding experiments, helping researchers obtain suitable seed samples for subsequent testing and analysis, accurately evaluating the thousand-grain weight, yield, and other quality characteristics of rice varieties. However, it still has the following drawbacks in practical use:
[0003] The threshing machine needs to be electrically driven to thresh the rice. During the threshing process, the threshing machine needs to be connected to electricity. In actual breeding research, it is often necessary to conduct on-site investigations in rice fields. Threshing can only be done after the rice ears are harvested and transported to a suitable location. Threshing cannot be carried out on the spot.
[0004] Secondly, during the threshing process, threshing machines generally use the principle of roller crushing and threshing, and the test is completed by controlling the speed of the roller. Some rice single-plant threshing machines also use other threshing principles, such as impact threshing, rubbing threshing, combing threshing, etc. In the initial contact of these threshing methods, there will be hard parts that squeeze the rice grains on the rice ears, causing damage to the rice grains and affecting the test results. Utility Model Content
[0005] The purpose of this utility model is to provide a single-plant rice thresher that prevents damage to rice grains. By setting up a base, threshing box, gearbox and threshing components, it solves the problem that the single-plant rice thresher is not suitable for different environments and that rice grains are easily damaged during threshing.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0007] This utility model relates to a single-plant rice threshing machine designed to prevent damage to rice grains. It includes a base, a threshing box, a gearbox, and threshing components. Support legs are fixed at the four corners of the base's top, and the threshing box is fixed between these four legs. Threshing components are symmetrically rotatably connected within the threshing box. Each threshing component includes a central rotating shaft, scraping strips, and silicone heads. Both central rotating shafts are movably connected within the threshing box, and scraping strips are evenly fixed around their periphery. Silicone heads are fixed to the ends of the scraping strips furthest from the central rotating shafts. The scraping strips around the two central rotating shafts are staggered. A gearbox is fixed to one side of the threshing box. During operation, a receiving box is supported on the base. The support legs on the base connect the threshing box to the upper part of the base and position it above the receiving box. The threshing box movably connects the threshing components, and the gearbox encloses two rotating gears that drive the threshing components. As the threshing components rotate, they thresh the rice ears entering the threshing box.
[0008] Furthermore, a limiting plate is fixed to one end of the base, a receiving box is provided on the top of the base, and the receiving box is positioned between the four legs. A notch is opened at the edge of the top of the receiving box near the limiting plate, and the limiting plate on the base restricts the position of the receiving box thereon.
[0009] Furthermore, the threshing box has symmetrical movable holes on the side near the gearbox with the vertical center line as the axis of symmetry. The top center of the threshing box has an opening, which is located in the middle between the two central rotating shafts when viewed from above. The movable holes on the threshing box are movably connected to the central rotating shafts.
[0010] Furthermore, a flexible concentrator is fixedly connected to the bottom of the threshing box, and an output square tube is fixedly connected to the output end of the flexible concentrator. The bottom end of the output square tube is located inside the receiving box. The flexible concentrator on the threshing box concentrates the rice grains removed therein into the output square tube, and then they are conveyed down into the receiving box through the output square tube.
[0011] Furthermore, the gearbox is symmetrically connected with meshing rotating gears, and a crank is fixed to the end of one of the rotating gears away from the threshing box. A handle is rotatably connected to the side of the crank away from the gearbox, and the handle is positioned away from the rotation center of the crank. Rotating the handle drives the crank to rotate.
[0012] Furthermore, the ends of the two central rotating shafts away from the gearbox are rotatably connected to the inner wall of the threshing box. The ends of the two central rotating shafts near the gearbox pass through two movable holes and are fixed to the ends of the two rotating gears near the center of the threshing box. After the rice ears enter the threshing box, they are placed between adjacent central rotating shafts and are scraped and threshed.
[0013] This utility model has the following beneficial effects:
[0014] This invention solves the problem of insufficient adaptability of single-plant rice threshers to different environments by setting up a base, threshing box, gearbox, and threshing components. When threshing a single rice plant, the rice plant is placed into the opening of the threshing box and inserted into the box. At the same time, the handle on the crank is rotated, which drives the crank to rotate and simultaneously drives the two rotating gears to rotate. During the rotation of the two rotating gears, the two threshing components are driven to rotate, removing the rice grains from the rice plant. After threshing, the rice grains fall into the flexible collection hopper in the threshing box. This allows single-plant rice threshing to be completed without electricity, and it is easy to operate and has better adaptability to different environments.
[0015] This invention solves the problem of easily damaged rice grains during threshing by setting up a threshing box, gearbox, and threshing components. When the handle is turned, it drives the crank and two meshing rotating gears to rotate, which in turn drives the two threshing components to rotate. When the two threshing components rotate, driven by the meshing rotating gears, the rotation directions of the central shafts are opposite. The silicone head at the end of the scraping bar first contacts the rice grains on the rice ear, guiding the rice grains between the adjacent scraping bars on the circumference of the two central shafts. The rotation of the scraping bars scrapes off the rice grains. By using the silicone head to guide the rice grains in advance, the rice grains are reduced from being crushed during the threshing process, thus increasing the integrity of the rice grains after threshing. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. 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.
[0017] Figure 1 A three-dimensional view of the structure of a single rice plant thresher after partial dissection to prevent damage to rice grains;
[0018] Figure 2 This is a three-dimensional structural diagram of the base;
[0019] Figure 3 This is a three-dimensional structural view of the threshing box;
[0020] Figure 4 This is a three-dimensional view of the gearbox after a partial cross-section.
[0021] Figure 5 This is a three-dimensional structural view of the threshing assembly;
[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the image;
[0023] Figure 7 This is a three-dimensional diagram of the assembly structure of a single rice plant thresher designed to prevent damage to rice grains.
[0024] Figure label:
[0025] 1. Base; 101. Receiving box; 102. Limiting plate; 103. Support leg; 2. Threshing box; 201. Opening; 202. Movable hole; 203. Flexible concentrator; 204. Output square tube; 3. Gearbox; 301. Rotating gear; 302. Crank; 303. Handle; 4. Threshing assembly; 401. Central rotating shaft; 402. Scraper bar; 403. Silicone head. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1
[0027] Please see Figure 1-7 This utility model relates to a single-plant rice threshing machine designed to prevent damage to rice grains. It includes a base 1, a threshing box 2, a gearbox 3, and threshing components 4. Support legs 103 are fixed at the four corners of the top of the base 1. The base 1 is connected and fixed to the threshing box 2 via the support legs 103, and the base 1 is supported on a working surface. The threshing box 2 is fixed together between the four support legs 103. When the threshing box 2 is working, the rice ears entering it are threshed by the threshing components 4. The threshing components 4 are symmetrically rotatably connected inside the threshing box 2. Each threshing component 4 includes a central rotating shaft 401, a scraping strip 402, and a silicone head 403. Both central rotating shafts 401 are movably connected inside the threshing box 2. Scraping strips 402 are evenly fixed around the periphery. A silicone head 403 is fixed to the end of each scraping strip 402 away from the central rotating shaft 401. The scraping strips 402 around the two central rotating shafts 401 are staggered. When the two threshing components 4 rotate, the rotation directions of the central rotating shafts 401 are opposite. The silicone head 403 at the end of the scraping strip 402 first contacts the rice grains on the rice ears and guides the rice grains between the adjacent scraping strips 402 around the two central rotating shafts 401. The rice grains are scraped off by the rotation of the scraping strips 402. The silicone head 403 is made of soft elastic material and is used to buffer the impact on the rice grains. A gearbox 3 is fixed to one side of the threshing box 2. The gearbox 3 connects and sets two rotating gears 301 that drive the threshing components 4 to rotate.
[0028] Specifically, a limiting plate 102 is fixed to one end of the base 1, and a receiving box 101 is provided on the top of the base 1. The receiving box 101 is located between the four support legs 103. A notch is opened at the edge of the top of the receiving box 101 near the limiting plate 102. The limiting plate 102 restricts and determines the position of the receiving box 101 on the base 1. When the receiving box 101 moves on the base 1, the notch prevents the output square tube 204 from hitting the body of the receiving box 101.
[0029] Furthermore, the threshing box 2 has symmetrically arranged movable holes 202 on the side near the gearbox 3 with the vertical center line as the axis of symmetry. The top center of the threshing box 2 has an opening 201, which is located in the middle between the two central rotating shafts 401 when viewed from above. The movable holes 202 on the threshing box 2 are movably connected to the central rotating shafts 401, and the openings 201 provide for the entry and exit of rice ears.
[0030] Furthermore, a flexible concentrator 203 is fixedly connected to the bottom of the threshing box 2, and an output square tube 204 is fixedly connected to the output end of the flexible concentrator 203. The bottom end of the output square tube 204 is set inside the receiving box 101. The flexible concentrator 203 at the bottom of the threshing box 2 concentrates the rice grains removed from the rice ears in the threshing box 2 and transports them to the output square tube 204, where they are then transported to the receiving box 101.
[0031] Furthermore, the gearbox 3 is symmetrically connected with meshing rotating gears 301, and a crank 302 is fixed to the end of one rotating gear 301 away from the threshing box 2. A handle 303 is rotatably connected to the side of the crank 302 away from the gearbox 3, and the handle 303 is set away from the rotation center of the crank 302. The gearbox 3 rotatably connects the rotating gear 301 therein. Rotating the handle 303 drives the crank 302, which drives one rotating gear 301 to rotate. The other rotating gear 301 is driven to rotate under the meshing action, so that the two rotating gears 301 drive the two central rotating shafts 401 to rotate.
[0032] The operation process of this embodiment is as follows: During operation, when threshing a single rice panicle is required, the rice panicle is placed into the opening 201 on the threshing box 2 and extended into the threshing box 2. At the same time, the handle 303 on the crank 302 is rotated, causing the crank 302 to rotate, which in turn drives the two rotating gears 301 to rotate. During the rotation of the two rotating gears 301, the two threshing components 4 are driven to rotate, removing the rice grains from the rice panicle. After threshing, the rice grains fall into the flexible container in the threshing box 2. The rice grains are concentrated in the threshing hopper 203 and then transported to the output square tube 204 in the output square tube 204. After the rice grains on the rice ears are completely removed, the rice ears are taken out of the threshing box 2 and the receiving box 101 is slid away from the base 1. The rice grains in the receiving box 101 can then be poured out for weighing and other operations. After the rice grains are poured out of the receiving box 101, the receiving box 101 is reset so that the individual rice plants can be threshed again. Specific Implementation Example 2
[0033] Please see Figure 1 , 5 6. Based on the specific embodiment one, the ends of the two central rotating shafts 401 away from the gearbox 3 are rotatably connected to the inner sidewall of the threshing box 2. The ends of the two central rotating shafts 401 near the gearbox 3 pass through the two movable holes 202 respectively, and are fixed to the ends of the two rotating gears 301 near the center of the threshing box 2 respectively. The central rotating shafts 401 are driven to rotate as the rotating gears 301 rotate.
[0034] The operation process of this embodiment is as follows: When the handle 303 is rotated, the handle 303 will drive the crank 302 and two meshing rotating gears 301 to rotate, and drive the two threshing components 4 to rotate. When the two threshing components 4 are rotating, driven by the meshing rotating gears 301, the rotation direction of the central rotating shaft 401 is opposite. The silicone head 403 at the end of the scraping bar 402 first contacts the rice grains on the rice ear, guiding the rice grains between the adjacent scraping bars 402 on the periphery of the two central rotating shafts 401. The rice grains are scraped off by the rotation of the scraping bar 402. By using the silicone head 403 to guide the rice grains in advance, the rice grains are reduced from being crushed when guiding the rice grains on the rice ear during the threshing process, and the integrity of the rice grains after the rice ear is threshed is increased.
[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A rice threshing machine for preventing damage to rice grains, comprising a base (1), a threshing box (2), a gearbox (3), and a threshing assembly (4), characterized in that: The base (1) has four corners at the top of each of the four corners fixed with legs (103). The four legs (103) are together fixed with a threshing box (2). Threshing components (4) are symmetrically rotatably connected inside the threshing box (2). Each of the two threshing components (4) includes a central rotating shaft (401), a scraping bar (402), and a silicone head (403). The two central rotating shafts (401) are movably connected inside the threshing box (2). Scraping bars (402) are evenly fixed around the central rotating shafts (401). A silicone head (403) is fixed at the end of the scraping bar (402) away from the central rotating shaft (401). The scraping bars (402) around the two central rotating shafts (401) are staggered. A gearbox (3) is fixed on one side of the threshing box (2).
2. The rice threshing machine for preventing damage to rice grains according to claim 1, characterized in that: One end of the base (1) is fixed with a limiting plate (102), and a receiving box (101) is provided on the top of the base (1). The receiving box (101) is located between the four legs (103), and a notch is opened on the top of the receiving box (101) near the edge of the limiting plate (102).
3. The rice threshing machine for preventing damage to rice grains according to claim 1, characterized in that: The threshing box (2) has symmetrically arranged movable holes (202) on the side near the gearbox (3) with the vertical center line as the axis of symmetry. The top center of the threshing box (2) has an opening (201), which is located in the middle between the two central rotating shafts (401) when viewed from above.
4. A single-plant rice thresher according to claim 2, characterized in that: The bottom of the threshing box (2) is fixedly connected to a flexible concentrator (203), and the output end of the flexible concentrator (203) is fixedly connected to an output square tube (204). The bottom end of the output square tube (204) is located inside the receiving box (101).
5. A single-plant rice thresher according to claim 3, characterized in that: The gearbox (3) is symmetrically connected to meshing rotating gears (301), and a crank (302) is fixed to one end of the rotating gear (301) away from the threshing box (2). A handle (303) is rotatably connected to the side of the crank (302) away from the gearbox (3), and the handle (303) is located away from the rotation center of the crank (302).
6. A single-plant rice thresher according to claim 5, characterized in that: The ends of the two central rotating shafts (401) away from the gearbox (3) are rotatably connected to the inner wall of the threshing box (2). The ends of the two central rotating shafts (401) near the gearbox (3) pass through two movable holes (202) respectively, and are fixed to the ends of the two rotating gears (301) near the center of the threshing box (2).