Domestic rice mill

Abstract

This application relates to a household rice milling machine. The household rice milling machine includes a main body, a housing assembly, and a rice milling mechanism housed within the housing assembly; a bran box located along the width of the housing assembly on one side of the rice milling mechanism and partially exposed on the side of the housing assembly, the bran box having a bran inlet communicating with the bran outlet of the rice milling mechanism; a bran suction fan installed within the housing assembly and communicating with the suction port of the bran box, the suction fan providing suction airflow into the bran box through the suction port; and a filter assembly, the bran box also having a filter port communicating between the inside of the bran box and the suction port, the filter assembly covering the filter port. Thus, by placing the bran box on its side, its volume can be increased, and the bran suction fan can guide rice bran from the bran outlet of the rice milling mechanism into the bran box, improving the efficiency of rice bran collection and maintaining a clean rice milling environment, providing users with a healthier and more environmentally friendly food processing method.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a household rice milling machine. Background Technology

[0002] Rice is a staple food in people's daily lives. It is obtained by milling dried grains through a rice milling machine to remove the husks and whiten them. As people's living standards gradually improve, they also have higher requirements for the quality of rice. Because freshly milled rice has higher nutritional value and quality than pre-processed rice, household rice milling machines have emerged as a result.

[0003] Household rice milling machines have bran boxes and rice boxes to collect the rice bran and rice grains produced during the milling process. However, the traditional method of collecting rice bran usually involves placing the bran box below the milling mechanism, where the bran falls automatically into the box due to its weight. The milled rice grains are collected in the same way. Because both the bran box and rice box need to be placed below the milling mechanism, the size of the bran box is limited. This results in frequent cleaning of the bran box when milling a large volume of rice. Furthermore, with a small capacity, bran dust is easily stirred up, increasing the cleaning effort and hindering the separation of rice grains from the bran dust. Summary of the Invention

[0004] Therefore, it is necessary to provide a household rice milling machine to address the problems of frequent cleaning due to the limited size of the bran box, and the increased cleaning effort and impact on the separation of rice grains and bran caused by easily flying bran dust.

[0005] This application provides a household rice milling machine, comprising:

[0006] The rice milling body includes a housing assembly and a rice milling mechanism disposed within the housing assembly;

[0007] The bran box is located on one side of the rice milling mechanism along the width direction of the housing assembly and is partially exposed on the side of the housing assembly. The bran box has a bran inlet that is connected to the bran outlet of the rice milling mechanism.

[0008] The chaff suction fan is installed inside the housing assembly and is connected to the suction port of the chaff box. The chaff suction fan is used to provide suction airflow into the chaff box through the suction port.

[0009] The filter assembly, the bran box also has a filter port, the filter port connects the inside of the bran box and the suction port, and the filter assembly is installed at the filter port.

[0010] In one embodiment, the housing assembly includes a first sidewall located on one side along its width direction, the first sidewall having a recessed cavity recessed into the housing assembly, at least a portion of the bran box being placed within the recessed cavity.

[0011] In one embodiment, the chaff box includes a box body and a box lid. The box body is placed in a recess and is configured to be recessed inward relative to a first sidewall. The box body has an opening on the opposite side of its recess, and the box lid is closable over the opening and exposed on the side of the housing assembly.

[0012] In one embodiment, the entire side of the box body on the opposite side of its recess is configured as an opening so that the inner cavity of the box body is fully exposed through the opening when the lid is opened.

[0013] In one embodiment, the lid is rotatably connected to the housing body along the top side of the housing assembly in the height direction, and the lid can open or close the opening during rotation; or

[0014] The lid is rotatably connected to the box body on the first side along the length of the housing assembly, and the lid can open or close the opening during rotation.

[0015] In one embodiment, the lid also includes a latch, which includes a first portion and a second portion communicating with each other;

[0016] When the top side of the lid is rotatably connected to the box body, the first part is located on the bottom side of the lid along the height direction of the housing assembly, and the second part is located on the side of the lid adjacent to the bottom side; or

[0017] When the first side of the lid is rotatably connected to the box body, the first part is located on the second side of the lid opposite to the first side along the length direction of the housing assembly, and the second part is located on the side of the lid adjacent to the second side.

[0018] In one embodiment, a first snap-fit ​​structure is provided between the lid and the body of the box, and the lid and the body of the box are snapped together by the first snap-fit ​​structure.

[0019] In one embodiment, the household rice milling machine further includes a bran receiving box and a bran suction duct. The bran receiving box is located below the bran discharge port of the rice milling mechanism along the height direction of the machine housing assembly and is connected to the bran discharge port. The bran suction duct is located between the bran receiving box and the bran receiving box along the width direction of the machine housing assembly and is used to connect the bran receiving box and the bran inlet.

[0020] In one embodiment, the bran receiving box is funnel-shaped, with the large-diameter end of the bran receiving box connected to the bran discharge port and the small-diameter end of the bran receiving box connected to the bran suction air duct.

[0021] In one embodiment, the chaff suction duct includes an air duct inlet and an air duct outlet. The air duct inlet is connected to the chaff receiving box, and the air duct outlet is connected to the chaff inlet. The air duct outlet is located above the air duct inlet along the height direction of the housing assembly and is positioned closer to the top of the chaff box.

[0022] In one embodiment, the chaff suction duct includes a duct inlet and a duct outlet. The duct inlet is connected to the chaff receiving box, and the duct outlet is connected to the chaff inlet. The chaff box and the end of the chaff suction duct with the duct outlet are fixedly connected to the chaff box through at least one first connector, and the side of the chaff receiving box facing the chaff box is fixedly connected to the chaff box through at least another first connector.

[0023] In one embodiment, the suction port of the bran box is located on the top wall of the bran box along the height direction of the housing assembly.

[0024] In one embodiment, the bran suction fan is located on the side of the bran box facing the inside of the housing assembly along the width direction of the housing assembly. The household rice milling machine also includes a fan duct that connects the suction port and the air inlet of the bran suction fan.

[0025] In one embodiment, the cross-sectional area of ​​the fan duct gradually decreases from the suction port toward the air inlet of the straw suction fan.

[0026] In one embodiment, the fan duct is fixedly connected to the bran box via a second connector, and the fan duct is fixedly connected to the bran suction fan via a third connector.

[0027] In one embodiment, the rice milling mechanism includes a rice milling drive bracket and a rice milling drive component, the rice milling drive component being installed within the installation space formed by the rice milling drive bracket; the rice bran suction fan is fixed to the top wall of the rice milling drive bracket along the height direction of the housing assembly.

[0028] In one embodiment, the filter port is located on the inner wall of the bran box, and the wall surface forming the filter port is inclined towards the bottom wall of the inner cavity of the bran box in the height direction relative to the housing assembly.

[0029] In the aforementioned household rice milling machine, when the bran box is placed along the width of the housing assembly on one side of the rice milling mechanism, it effectively avoids competing with the rice box for space below the rice milling mechanism, thus efficiently utilizing the space resources on the side of the rice milling mechanism. Furthermore, since the bran box is exposed on the side of the housing assembly, at least a portion of the side wall of the housing assembly on this side can be removed, further increasing the volume of the bran box. By setting up a bran suction fan to provide airflow into the bran box, rice bran can be guided from the bran discharge port of the rice milling mechanism into the bran box, preventing rice bran from scattering to other areas of the housing assembly. This improves the efficiency of rice bran collection, reduces the workload of subsequent cleaning of the household rice milling machine, and maintains a clean rice milling environment. After the rice bran enters the bran box with the suction airflow, it will remain inside the bran box due to the obstruction of the filter components. The filtered airflow will then enter the bran suction fan through the suction port and the fan duct, and finally be discharged from the air outlet of the bran suction fan. This can ensure smooth airflow and prevent rice bran from entering the bran suction fan and causing fan blockage or wear of parts, thus extending the service life of the bran suction fan. It also makes it easier to clean the rice bran in the bran box later. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of a portion of the structure of a household rice milling machine according to one or more embodiments of this application.

[0031] Figure 2 for Figure 1 The diagram shows a cross-sectional view of a household rice milling machine.

[0032] Figure 3 for Figure 2 The diagram shows the structural composition of the bran box, connecting channel, and fan duct of a household rice milling machine.

[0033] Figure 4 for Figure 2 The diagram shows the structure of the bran box lid of a household rice milling machine in an open position.

[0034] Figure 5 for Figure 2 The diagram shows the structure of a household rice milling machine with its suction fan mounted on the rice milling drive bracket.

[0035] Figure 6 for Figure 2 The diagram shows an exploded view of the suction fan in a household rice milling machine.

[0036] Figure 7 This is a structural schematic diagram of a portion of the structure of a household rice milling machine in one or more embodiments of this application.

[0037] Figure 8 for Figure 7The diagram shows the structural composition of the bran box, connecting channel, and fan duct of a household rice milling machine.

[0038] Figure 9 for Figure 8 The diagram shows a structural schematic of the bran box removal section in a household rice milling machine.

[0039] Figure 10 for Figure 7 The diagram shows the structure of the bran box, connecting channel, fan duct, and bran suction fan assembly of a household rice milling machine.

[0040] Figure 11 for Figure 10 The diagram shows the exploded structure of the rice milling machine, including the bran box, connecting channel, fan duct, and bran suction fan.

[0041] Figure 12 for Figure 7 The diagram shows the disassembled structure of the bran box body, filter assembly, and limiting bracket in a household rice milling machine.

[0042] Figure 13 for Figure 12 A top view of the main body of the rice husk.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100. Household rice milling machine; 10. Rice milling body; 11. Machine housing assembly; 111. Front panel; 112. First side panel; 1121. First side wall; 113. Second side panel; 114. Base; 12. Rice milling mechanism; 121. Bran discharge port; 122. Rice milling drive bracket; 123. Rice milling drive component; 20. Bran box; 21. Bran inlet; 22. Box body; 221. Opening; 2211. Sub-opening; 23. Box lid; 231. Handle; 2311. First part ; 2312, Part Two; 24, Hinge Shaft; 25, First Snap-on Structure; 251, First Snap-on; 252, First Slot; 26, Button Assembly; 261, Button; 262, Rotating Shaft; 27, Suction Inlet; 28, Filter Inlet; 281, First Grille Structure; 29, Guide Rail; 201, Limiting Bracket; 2011, Plug; 2012, Fourth Snap-on; 202, Mounting Cavity; 2021, Insertion Hole; 203, Fourth Slot; 204, Fifth Snap-on; 30, Suction Bran blower; 31. Air inlet; 32. Third clip; 33. First blower housing; 331. Air inlet duct; 332. First sub-receiving cavity; 333. Positioning post; 34. Blower body; 341. Inlet end; 342. First housing; 343. Second housing; 35. Second blower housing; 351. Second sub-receiving cavity; 352. Positioning hole; 36. Air outlet; 37. Elastic porous component; 38. Elastic shock-absorbing pad; 40. Connecting channel; 41. Bran receiving box; 42. Bran suction. Air duct; 421, Air duct inlet; 422, Air duct outlet; 50, First connector; 52, Second buckle; 54, Second slot; 56, Reinforcing part; 60, Fan air duct; 62, Second connector; 64, Third connector; 66, Third slot; 68, Fifth slot; 70, Filter assembly; 71, Filter element; 711, Mesh support; 7111, Second grid structure; 712, Filter screen; 72, Clamping part; 721, Third grid structure; 73, Elastic buffer. Detailed Implementation

[0045] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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 this application.

[0047] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0051] As described in the background section, a household rice milling machine has a bran box and a rice box, which are usually located below the rice milling mechanism. When the household rice milling machine starts milling rice, the rice paddies are crushed by the rice milling mechanism, and the resulting bran can fall into the bran box below under the action of gravity, while the rice grains can fall into the rice box below under the action of gravity.

[0052] Typically, the volume ratio of rice bran to rice grains during rice milling is 1:1.5 to 1:2, therefore the bran box needs to be 1.5 to 2 times the volume of the rice box. However, since both the bran box and the rice box are located below the rice milling mechanism, the limited space below the mechanism restricts the size of the bran box, resulting in a smaller volume.

[0053] If the capacity of the bran box becomes smaller, it will need to be cleaned more frequently when milling rice, resulting in a poor user experience. In addition, the bran dust and debris generated during rice milling are not easy to collect in a small space, which can easily cause the bran dust and debris to fly around. This not only increases the cleaning effort required for the bran box, but also makes it difficult to effectively separate the bran dust from the rice grains due to the close proximity of the rice box and the bran box.

[0054] Therefore, this application aims to provide a household rice milling machine that can increase the size of the bran box by optimizing the collection method of rice bran and the position of the bran box, thereby reducing the need for frequent cleaning of the bran box and the problem that the increased cleaning effort caused by easily flying bran dust affects the separation of rice grains and bran.

[0055] See Figures 1-4 This application provides an embodiment of a household rice milling machine 100, including a rice milling body 10 and a bran box 20. This application protects a household rice milling machine, which belongs to the energy-saving and environmental protection industry, specifically an energy-saving household kitchen appliance. The main function of this household rice milling machine is to efficiently separate rice bran from paddy rice and obtain pure rice grains. Through its design and technological applications, it can significantly reduce energy consumption during operation, thus meeting the requirements of energy conservation and environmental protection. At the same time, as a kitchen appliance designed for family use, it not only possesses practicality and convenience but also meets the modern family's pursuit of green living and sustainable development, providing users with a healthier and more environmentally friendly food processing method.

[0056] The rice milling body 10 is used to mill grains to obtain the desired rice structure. Specifically, the rice milling body 10 may include a housing assembly 11 and a rice milling mechanism 12.

[0057] The housing assembly 11 refers to the outer shell structure of the household rice milling machine 100 used to protect the internal structure. In the embodiments of this application, the housing assembly 11 is generally rectangular in shape and has a relatively high height and a relatively narrow width. The housing assembly 11 can be formed by assembling multiple plates, specifically including a front panel 111, a first side panel 112, a second side panel 113, a top plate, and a base 114. The first side panel 112 and the second side panel 113 are arranged opposite each other along the width direction of the housing assembly 11. The front panel 111 is located on the same side of the first side panel 112 and the second side panel 113 along the length direction of the housing assembly 11. The floor and the top plate are arranged opposite each other along the height direction of the housing assembly 11. The front panel 111, the first side panel 112, the second side panel 113, the top plate, and the base 114 enclose the internal space of the housing assembly 11.

[0058] Specifically, the width direction of the housing assembly 11 is the Y direction as shown in the figure, the length direction of the housing assembly 11 is the X direction as shown in the figure, and the height direction of the housing assembly 11 is the Z direction as shown in the figure.

[0059] The rice milling mechanism 12 is located inside the housing assembly 11 and is a structure for milling grains to obtain the desired rice. The rice milling mechanism 12 can mill the grains once or multiple times according to the rice milling requirements, so as to dehull and grind the grains into fresh rice such as brown rice, germ rice, and polished white rice.

[0060] The bran box 20 is a container for holding the bran, broken bran, and rice dust produced after grains are milled and dehulled by the rice milling mechanism 12. Specifically, the bran box 20 has a bran inlet 21, which is connected to the bran outlet 121 of the rice milling mechanism 12. In embodiments of this application, the household rice milling machine 100 also includes a rice box, which is a container for holding fresh rice obtained after grains are milled by the rice milling mechanism 12. Specifically, the rice box has a rice inlet, which is connected to the rice outlet of the rice milling mechanism 12.

[0061] In addition, the rice milling body 10 may also include a grain silo assembly and a display panel.

[0062] The grain silo component refers to the rice feeding system of the household rice milling machine 100, which can store paddy rice or other grains and provide a fixed amount of grain to the rice milling mechanism 12 for milling. This fixed amount can be determined by controlling the feeding time of the grain silo component to the rice milling mechanism 12. These times can be preset in the controller of the household rice milling machine 100. For example, when the user selects a cup of rice, the corresponding feeding time is a first preset duration. Therefore, the controller can control the feeding time of the grain silo component to the rice milling mechanism 12 to the first preset duration, so as to accurately obtain a cup of rice.

[0063] The display panel is the human-machine interface of the household rice milling machine 100 used for operating, controlling, and monitoring the rice milling process. It typically features a digital display and touch or button functions. In the embodiments of this application, the display panel is installed on the front panel 111 of the household rice milling machine 100. Specifically, the display panel may include a transparent window, a faceplate, and a display panel, etc.

[0064] In an embodiment of this application, the bran box 20 is disposed on one side of the housing assembly 11 along its width direction.

[0065] In other words, the chaff box 20 is located on the side of the housing assembly 11, specifically on the side where the first side plate 112 is located, or on the side where the second side plate 113 is located.

[0066] In this way, the bran box 20 can fully utilize the space on the side of the housing assembly 11, thereby effectively increasing its volume. Because of the increased volume, the bran box 20 no longer needs frequent cleaning. Furthermore, this design prevents bran dust from easily flying around. This greatly reduces the effort required for cleaning, making it easier and more convenient to clean the bran box 20 and its surroundings. It also makes the separation of rice grains and bran more effective, further improving the efficiency and quality of the household rice milling machine 100. In addition, since it does not occupy the space below the rice milling mechanism 12, this space can be freed up for the integration of rice storage bins or other functional modules.

[0067] When the bran box 20 is located on one side of the housing assembly 11 along its width, it can be configured to have a flat rectangular shape. Specifically, the bran box 20 is rectangular, with a first dimension along the width of the housing assembly 11, a second dimension along the length of the housing assembly 11, and a third dimension along the height of the housing assembly 11, with the first, third, and second dimensions gradually increasing in size. This allows for better adaptation to the longitudinal space on the side of the housing assembly 11, without excessively protruding outwards and occupying too much countertop space, maintaining the overall compact and regular shape of the household rice milling machine 100, while maximizing the volume of the bran box 20 to meet the bran storage needs of large quantities of rice milled at a time.

[0068] Specifically, the bran box 20 is located on one side of the rice milling mechanism 12 along the width direction of the housing assembly 11, and is partially exposed on the side of the housing assembly 11.

[0069] Generally, the bran box 20 is positioned along its height on the housing assembly 11 at the lower part of the rice milling mechanism 12. In this arrangement, the bran box 20, along with the rice box, occupies the limited space below the rice milling mechanism 12, resulting in a relatively small volume for the bran box 20. By placing the bran box 20 along the width of the housing assembly 11 on one side of the rice milling mechanism 12, it effectively avoids competing with the rice box for space below the rice milling mechanism 12, thus efficiently utilizing the space on the side of the rice milling mechanism 12. Furthermore, since the bran box 20 is exposed on the side of the housing assembly 11, at least a portion of the sidewall of the housing assembly 11 on this side can be removed, further increasing the volume of the bran box 20. At the same time, this design also makes it very convenient for users to operate the bran box 20 from this side, such as disassembling or cleaning the bran box 20, and it is also convenient for users to observe the internal condition of the bran box 20, such as checking whether the amount of bran in the bran box 20 has reached the level that needs to be cleaned.

[0070] In some embodiments, the housing assembly 11 includes a first sidewall 1121 located on one side along its width direction, and a recess is formed on the first sidewall 1121 that is recessed into the housing assembly 11, and at least a portion of the bran box 20 is placed in the recess.

[0071] By forming a recess in the first sidewall 1121 and placing at least a portion of the bran box 20 within the recess, the bran box 20 can be placed closer to the rice milling mechanism 12 inside the housing assembly 11. This not only makes full use of the lateral space of the rice milling mechanism 12 but also allows the bran box 20 to collect rice bran more efficiently. On the other hand, since a portion of the bran box 20 is placed within the recess and thus inside the housing assembly 11, the bran box 20 is less prominent relative to the first sidewall 1121, thus avoiding any impact on the appearance of the household rice milling machine 100.

[0072] Specifically, the bran box 20 includes a box body 22 and a box lid 23. The box body 22 is placed in a recessed cavity and is configured to be recessed inward relative to the first side wall 1121. The box body 22 has an opening 221 on the opposite side of its recess. The box lid 23 is closable and covers the opening 221 and is exposed on the side of the housing assembly 11. Specifically, the box lid 23 is movably connected to the box body 22 and can open or close the opening 221.

[0073] The box body 22 refers to the cavity of the bran box 20 that mainly contains rice bran. The lid 23 can be placed over the opening 221 of the box body 22 to close the opening 221, thereby reliably collecting rice bran during the rice milling process. The lid 23 can also open the opening 221 to facilitate the user to clean the rice bran from the box body 22. The way the lid 23 is connected to the box body 22 is not limited; it can be moved, rotated, or folded, etc.

[0074] In this embodiment, the box body 22 serves as the main cavity for containing rice bran. By placing the box body 22 within the recessed cavity on the first side wall 1121, the cavity space can be fully utilized, and the box body 22 does not protrude relative to the first side wall 1121. The lid 23 is located on the opposite side of the recess of the box body 22, that is, on the side where the first side wall 1121 is located. This allows the user to easily operate the lid 23 from the side of the housing assembly 11. Furthermore, after the lid 23 is opened through the opening 221, the cavity of the box body 22 can be exposed on the side of the housing assembly 11, allowing the user to clean the rice bran box 20 without disassembling it, thus facilitating cleaning.

[0075] Furthermore, the entire side of the box 22 on its recessed opposite side is configured as an opening 221.

[0076] When an entire side of the box 22 is constructed as an opening 221, the area of ​​the opening 221 increases. After the box cover 23 is opened, the opening 221 is fully exposed on the side of the housing assembly 11, thus the inner cavity of the box 22 is fully exposed through the opening 221.

[0077] Under the user's operation, the rice bran can be quickly discharged from the opening 221. Furthermore, since the entire interior of the box 22 can be observed through the opening 221, it is possible to deeply clean the rice bran that has accumulated in some corners of the box 22 or some stubborn residual rice bran, thus improving the cleaning effect of rice bran.

[0078] Furthermore, when the lid 23 is placed over the opening 221, the lid 23 and the first side wall 1121 together form one of the side walls of the household rice milling machine 100.

[0079] One of the side walls of the household rice milling machine 100 refers to one of the side walls along the width direction of the housing assembly 11.

[0080] In this way, the bran box 20 no longer protrudes outwards and occupies too much external space, making the overall shape of the household rice milling machine 100 more regular and reducing the width occupied by the whole machine, making it more suitable for small kitchen spaces. At the same time, the volume of the bran box 20 is not compressed, taking into account both the neat appearance and the practicality of use.

[0081] In some embodiments, the lid 23 is rotatably connected to the box body 22 along the top side of the housing assembly 11 in the height direction, and the lid 23 is able to open or close the opening 221 during rotation.

[0082] By rotating the top side of the lid 23 to the box body 22, when the lid 23 is rotated to open the opening 221, the bottom side of the box body 22 is exposed first, thus facilitating the discharge of rice bran accumulated inside the box body 22. Furthermore, when it is necessary to tilt the household rice milling machine 100 to pour out rice bran, the lid 23 is lifted upwards, thus not hindering the tilting of the household rice milling machine 100, allowing the rice bran to be poured out smoothly.

[0083] Specifically, the top side of the lid 23 and the box body 22 can be rotatably connected through the hinge shaft 24.

[0084] The hinge shaft 24 is set between the lid 23 and the body 22 to achieve a simple and reliable rotatable connection between the two.

[0085] Specifically, there are two hinge shafts 24. Along the length of the housing assembly 11, the two hinge shafts 24 are spaced apart from each other. The top side of the cover 23 and the box body 22 can be rotatably connected through the two hinge shafts 24.

[0086] In this way, the top side of the lid 23 can be stably stressed by the two hinge shafts 24 during the rotation of the lid 23 relative to the box body 22, which improves the stability of opening and closing the lid 23.

[0087] In addition, the opening angle of the lid 23 can be from 0 degrees to 180 degrees, thus enabling quick cleaning of rice bran.

[0088] In other embodiments, the lid 23 is rotatably connected to the body 22 on a first side along the length of the housing assembly 11, and the lid 23 is able to open or close the opening 221 during rotation.

[0089] By rotating the lid 23 to the box body 22 along the length of the housing assembly 11, the bottom of the box body 22 can be exposed when the lid 23 is rotated to open the opening 221, thus facilitating the discharge of rice bran accumulated inside the box body 22. Furthermore, when it is necessary to tilt the household rice milling machine 100 to pour out rice bran, the lid 23 can be opened to the left or right, thus not hindering the tilting of the household rice milling machine 100, allowing the rice bran to be poured out smoothly.

[0090] To facilitate the user in opening the lid 23, the lid 23 further includes a handle 231. The handle 231 includes a first part 2311 and a second part 2312 that are connected to each other. When the top side of the lid 23 is rotatably connected to the box body 22, the first part 2311 of the handle 231 is located on the bottom side of the lid 23 along the height direction of the housing assembly 11, and the second part 2312 is located on the side of the lid 23 adjacent to the bottom side.

[0091] The second part 2312 is located on the side of the lid 23 adjacent to the bottom side, which can be either the first side or the second side.

[0092] When a user intends to open the lid 23 by hand, they can do so by gripping the handle 231. The handle 231 consists of two parts: the first part 2311 is located on the bottom side opposite the rotating position of the lid 23, and the second part 2312 is located on the side adjacent to this bottom side. This structural layout ensures that when the lid 23 is turned, the point of force is precisely located at a corner opposite the rotating position of the lid 23. In this way, during actual operation, the user can open the bottom part of the lid 23 with relatively little force, and then, as the top side begins to function and generate a rotational effect, the entire lid 23 can be opened smoothly. This design greatly improves the convenience of opening the lid 23, reduces the effort required during the opening process, and makes opening the lid 23 easier and smoother.

[0093] Similarly, when the first side of the lid 23 is rotatably connected to the box body 22, the first part 2311 of the handle 231 is located on the second side of the lid 23 opposite to the first side along the length direction of the housing assembly 11, and the second part 2312 is located on the side of the lid 23 adjacent to the second side.

[0094] The second part 2312 is located on the side of the cover 23 adjacent to the second side, which can be the top side or the bottom side.

[0095] In this way, the convenience of opening the lid 23 is improved, the effort required in the opening process is reduced, and the action of opening the lid 23 becomes easier and smoother.

[0096] Specifically, the first part 2311 is the first hand groove, and the second part 2312 is the second hand groove.

[0097] The first and second hand grooves can both be formed on the inner edge of the lid 23 facing the box body 22.

[0098] In this way, when users need to open the lid 23, they only need to use their fingers to hold the first and second latches to lift the lid 23. This operation is more convenient and the latch position is more comfortable.

[0099] In other embodiments, the first part 2311 may also be a first handle 231 and a second handle 231 protruding from the outer surface edge of the lid 23 facing away from the box body 22.

[0100] In addition, since the first part 2311 and the lid 23 are in opposite rotational positions, the length of the first part 2311 is set to be greater than the length of the second part 2312. This can guide the user's hand to have a larger contact area with the second part 2312 and the first part 2311. As a result, when the lid 23 is opened, more force can be applied to the first part 2311, which is more conducive to opening the lid 23 from the opposite side of the rotational position.

[0101] In some embodiments, a first snap-fit ​​structure 25 is provided between the lid 23 and the body 22, and the lid 23 and the body 22 are snapped together by the first snap-fit ​​structure 25.

[0102] By setting the lid 23 and the body 22 to be engaged by the first snap-fit ​​structure 25, a stable lock between the lid 23 and the body 22 can be achieved. Furthermore, when opening the lid 23, it can be directly lifted to unlock, making the operation convenient.

[0103] Specifically, the first snap-fit ​​structure 25 may include a first snap-fit ​​251 and a first slot 252. One of the first snap-fit ​​251 and the first slot 252 is disposed on the lid 23 and the other is disposed on the body 22. The first snap-fit ​​251 can engage with the first slot 252.

[0104] The structure of the first buckle 251 and the first slot 252 is simple, and the snap-fit ​​method between the first buckle 251 and the first slot 252 is also reliable.

[0105] More specifically, the first latch 251 can be an elastic latch. In actual use, when this elastic latch engages with or disengages from the first latch 252, it will be subjected to external force and deform to a certain extent. This deformation characteristic makes the engagement process smoother and more effective.

[0106] In some embodiments, when the lid 23 is rotatably connected to the box body 22 along the height direction of the housing assembly 11, the first snap-fit ​​structure 25 includes a plurality of first snap-fit ​​structures 25, and all the first snap-fit ​​structures 25 are provided on opposite sides of the box body 22 and the lid 23 along the length direction of the housing assembly 11.

[0107] For example, the first snap-fit ​​structure 25 includes four, two of which are located on one side of the box body 22 and the box cover 23 along the length direction of the housing assembly 11, and the other two are located on the opposite side of the box body 22 and the box cover 23 along the length direction of the housing assembly 11. Of course, the number of first snap-fit ​​structures 25 can also be two, six, etc.

[0108] This ensures that the locking force between the lid 23 and the body 22 is uniform, making it less likely for gaps to form between the edges of the lid 23 and the body 22, thus preventing rice bran leakage and improving the reliability of rice bran storage in the bran box 20.

[0109] When the lid 23 is rotatably connected to the box body 22 along the length of the housing assembly 11, the first snap-fit ​​structure 25 includes multiple first snap-fit ​​structures 25, and all the first snap-fit ​​structures 25 are provided on the opposite sides of the box body 22 and the lid 23 along the height of the housing assembly 11.

[0110] This also ensures that the locking force between the lid 23 and the body 22 is even, making it less likely for gaps to form between the edges of the lid 23 and the body 22, thus preventing rice bran leakage and improving the reliability of rice bran storage in the bran box 20.

[0111] The bran box 20 described above has its lid 23 exposed on the outside of the housing assembly 11. Therefore, the side lid 23 of the bran box 20 can be directly opened to clean the rice bran inside the bran box 20 while it is installed on the rice milling body 10. However, this application also protects a bran box 20 that is detachable from the rice milling body 10, see [reference]. Figures 7-13 When the user needs to clean the bran box 20, the bran box 20 can be removed from the rice milling body 10, thereby achieving the cleaning of the bran box 20. The specific disassembly method will be detailed in subsequent embodiments.

[0112] For details, please refer to [link / reference]. Figures 8-10 When the bran box 20 is detachable from the rice milling body 10, the opening 221 of the box body 22 can be set on the bottom wall of the box body 22 along the height direction of the housing assembly 11. The lid 23 is movably connected to the box body 22 and can open or close the opening 221. Specifically, the movable connection can be similar to the rotation method mentioned above, and will not be described in detail here.

[0113] Thus, after the bran box 20 is disassembled, the rice bran can be discharged through the opening 221 on the bottom wall of the box body 22, which improves the convenience of bran discharge.

[0114] Specifically, the lid 23 is rotatably connected to the box body 22 on one side of the width direction of the housing assembly 11 or on one side of the length direction of the housing assembly 11, and the lid 23 can open or close the opening 221 during rotation.

[0115] By rotating the connection, the lid 23 can be quickly opened or closed, making it easy for users to operate. After the lid 23 is rotated open, it can also maintain the open opening 221 under the action of gravity, so that the rice bran accumulated in the box 22 can be quickly discharged.

[0116] Furthermore, to improve the ease of opening the lid 23, the rice husk 20 also includes a button assembly 26. The button assembly 26 is located on a side wall adjacent to the bottom wall. The button assembly 26 can operably release the lid 23 to open the opening 221 or restrict the lid 23 to close the opening 221. Specifically, the button assembly 26 can engage with the lid 23 on the opposite side of the lid 23 that is rotatably connected to the box body 22. This does not affect the rotational movement of the lid 23 relative to the box body 22.

[0117] By setting the button component 26, users can release the lid 23 by pressing it with a single finger while holding the bran box 20 to complete the bran discharge operation without the need for any other tools. The bran discharge process is more convenient and efficient. At the same time, the button component 26 is located on the adjacent side wall, so it will not occupy extra space in the bottom opening 221, nor will it interfere with the installation and fixation of the bran box 20 on the rice milling body 10. This balances the convenience of bran discharge with the structural stability of the bran box 20 installation.

[0118] Specifically, the button assembly 26 includes a button 261, a rotating shaft 262, and an elastic element. The button 261 is rotatably connected to the side wall of the housing 22 about the rotating shaft 262. The elastic element is located between the button 261 and the side wall of the housing 22 and is used to provide elastic force to keep the button 261 in place to restrict the cover 23 to close the opening 221.

[0119] Thus, when it is necessary to open the opening 221 to discharge rice bran, pressing down on the button 261 can overcome the elastic force of the elastic element, causing the button 261 to rotate and release the restriction on the lid 23, allowing the lid 23 to open and complete the discharge of rice bran. After the discharge is completed, the lid 23 is closed again, and the button 261 automatically resets under the elastic force of the elastic element, re-restricting the lid 23 and closing the opening 221. The entire operation process is simple and smooth, and users can complete the operation with one hand, resulting in a better user experience.

[0120] In this embodiment, the opening 221 includes a plurality of sub-openings 2211, and all the sub-openings 2211 are spaced apart from each other along the length direction of the housing assembly 11.

[0121] By setting multiple sub-openings 2211, the structural strength of the openings 221 can be enhanced, preventing deformation of the openings 221 due to collisions or external pressure. This ensures that the lid 23 can stably fit with the openings 221, improving the reliability of the bran box 20 structure. At the same time, the spacer ribs between the sub-openings 2211 do not obstruct the discharge of rice bran. When disassembling and cleaning the bran box 20, the rice bran can still flow smoothly from each sub-opening 2211 without affecting the bran discharge efficiency.

[0122] See Figures 2-6 In an embodiment of this application, the household rice milling machine 100 further includes a bran suction fan 30, which is installed inside the housing assembly 11 and is used to provide suction airflow into the bran box 20. Specifically, the bran suction fan 30 is connected to the suction port 27 of the bran box 20, and the bran suction fan 30 is used to provide suction airflow into the bran box 20 through the suction port 27.

[0123] The rice bran suction fan 30 is a power component that can generate directional suction airflow. It is connected to the suction port 27 of the rice bran box 20 through a pipeline. When working, it can create negative pressure inside the rice bran box 20 to quickly suck the rice bran generated during the rice milling process into the rice bran box 20 for centralized collection.

[0124] Specifically, when the household rice milling machine 100 starts milling rice, the rice bran produced by the rice milling mechanism 12 is discharged through the bran discharge port 121 of the rice milling mechanism 12. At this time, the bran suction fan 30 is started. Under the action of negative pressure, the rice bran discharged from the bran discharge port 121 enters the bran box 20 through the bran inlet 21 of the bran box 20 for collection.

[0125] By providing suction airflow to the bran box 20 through the suction fan 30, rice bran can be guided from the bran outlet 121 of the rice milling mechanism 12 into the bran box 20, preventing it from scattering to other areas of the housing assembly 11. This improves the efficiency of rice bran collection and reduces the workload of cleaning the household rice milling machine 100, keeping the rice milling environment clean. Furthermore, since the bran box 20 in this embodiment is located on one side of the rice milling mechanism 12 along the width of the housing assembly 11, rather than below it, the difficulty of rice bran flowing towards the bran box 20 under gravity is increased. By providing suction airflow through the suction fan 30, the bran can be propelled towards the bran box 20, thus ensuring reliable collection of rice bran while maintaining the side-mounted location of the bran box 20.

[0126] Furthermore, the household rice milling machine 100 also includes a connecting channel 40, which connects the bran discharge port 121 and the bran inlet 21.

[0127] Since the bran box 20 is located on the side of the rice milling mechanism 12, and the bran discharge port 121 is oriented downwards, setting a connecting channel 40 between the bran inlet 21 of the bran box 20 and the bran discharge port 121 of the rice milling mechanism 12 can better guide the rice bran to flow to the bran box 20.

[0128] Specifically, the connecting channel includes a bran receiving box 41 and a bran suction duct 42. The bran receiving box 41 is located below the bran discharge port 121 of the rice milling mechanism 12 along the height direction of the housing assembly 11 and is connected to the bran discharge port 121. The bran suction duct 42 is located between the bran box 20 and the bran receiving box 41 along the width direction of the housing assembly 11 and is used to connect the bran receiving box 41 and the bran inlet 21.

[0129] The rice bran receiving box 41 is a box structure 22 used to directly receive rice bran falling from the rice bran discharge port 121. The rice bran receiving box 41 has a certain amount of space inside to receive as much rice bran as possible from the rice bran discharge port 121. The rice bran suction duct 42 is a channel used to transfer rice bran from the rice bran receiving box 41 to the rice bran box 20. Specifically, it can be a tubular channel structure.

[0130] Since the bran box 20 is located on the side of the rice milling mechanism 12, and the bran discharge port 121 is oriented downwards, the arrangement of the bran receiving box 41 and the bran suction channel between the bran inlet 21 of the bran box 20 and the bran discharge port 121 of the rice milling mechanism 12 can more smoothly guide the downwardly discharged rice bran into the bran box 20, thereby improving the smoothness of the collection of rice bran into the bran box 20.

[0131] In some embodiments, the chaff receiving box 41 is funnel-shaped, with the large-diameter end of the chaff receiving box 41 connected to the chaff receiving port and the small-diameter end of the chaff receiving box 41 connected to the chaff suction air duct 42.

[0132] The large-diameter end of the chaff receiving box 41 refers to the end of the funnel-shaped chaff receiving box 41 with a larger diameter opening 221, while the small-diameter end of the chaff receiving box 41 refers to the end of the funnel-shaped chaff receiving box 41 with a smaller diameter opening 221.

[0133] By setting the rice bran receiving box 41 in a funnel shape and connecting its large-diameter end to the rice bran receiving port, the range of rice bran that the receiving box 41 can receive from the rice bran discharge port 121 can be expanded, reducing the amount of rice bran flying outward. The small-diameter end of the receiving box 41 is connected to the rice bran suction channel 42, which allows the rice bran to flow along the inner wall of the receiving box 41 towards its small-diameter end, preventing rice bran from accumulating at the large-diameter end. In addition, when the receiving box 41 is funnel-shaped, the suction force from the rice bran suction fan 30 can gradually increase from the large-diameter end to the small-diameter end, thus improving the effect of rice bran adsorption into the rice bran suction channel.

[0134] In some embodiments, the chaff suction duct 42 includes a duct inlet 421 and a duct outlet 422. The duct inlet 421 is connected to the chaff receiving box 41, and the duct outlet 422 is connected to the chaff inlet 21. The duct outlet 422 is located above the duct inlet 421 along the height direction of the housing assembly 11 and is located closer to the top of the chaff box 20.

[0135] Since the outlet 422 of the bran suction duct 42 is located above the inlet 421 along the height direction of the housing assembly 11 and is set closer to the top of the bran box 20, the rice bran can be guided into the space above the bran box 20. Thus, the rice bran can fall to the bottom of the bran box 20 under the action of gravity. In this way, when the bran box 20 is located to the side of the rice milling mechanism 12, the effect of fully utilizing the volume of the bran box 20 to collect rice bran can also be achieved.

[0136] When the bran box 20 is fixed to the rice milling body 10 and cannot be disassembled, the connecting channel 40 can be fixedly connected to the bran box 20 through the first connector 50. Specifically, the first connector 50 includes multiple connectors. One end of the bran suction duct 42 with the duct outlet 422 is fixedly connected to the bran box 20 through at least one first connector 50, and the side of the bran receiving box 41 facing the bran box 20 is fixedly connected to the bran box 20 through at least one first connector 50.

[0137] In addition, the bran box 20 as a whole can also be engaged with the cavity on the first side wall 1121. In this way, the bran box 20 as a whole is constrained by the cavity wall and will not loosen or shift. After being fixedly connected with the connecting channel, the fixation is more secure.

[0138] See Figure 11 When the bran box 20 is detachable from the rice milling body 10, the connecting channel 40 can be detachably connected to the bran box 20. Specifically, the connecting channel can be engaged with the bran box 20. Specifically, the bran suction duct 42 is engaged with the bran box 20.

[0139] Specifically, the bran box 20 and the bran suction duct 42 are detachably connected via the second buckle 52 and the second slot 54.

[0140] One of the second buckle 52 and the second slot 54 is located on the bran box 20, and the other is located on the bran suction duct 42. The second buckle 52 can engage with the second slot 54. When the user pulls out the bran box 20, the second buckle 52 can be directly dislodged from the second slot 54. When the bran box 20 needs to be installed, it can be aligned and pushed in to complete the engagement and fixation. Thus, installation and disassembly are very simple and do not require additional tools.

[0141] Specifically, the bran box 20 is detachably connected to the end of the bran suction duct 42 with the duct outlet 422 via a second snap fastener 52 and a second slot 54. By detachably connecting the bran box 20 to the end of the bran suction duct 42 with the duct outlet 422, the second snap fastener 52 and the second slot 54 automatically engage after the bran box 20 is installed, ensuring the airtightness of the duct outlet 422 and preventing air leakage during suction, which could lead to a decrease in suction power.

[0142] Specifically, the second slot 54 is provided through the side wall of the bran box 20, and the second buckle 52 extends into the second slot 54 for engagement and is exposed inside the bran box 20.

[0143] This structure enables snap-fit ​​fixing without taking up extra storage space inside the bran box 20. At the same time, the snap-fit ​​depth is controllable, so that the storage volume of rice bran will not be reduced due to excessive protrusion into the bran box 20. It also makes it easy to align and position during snap-fit ​​installation, improving assembly efficiency.

[0144] Furthermore, multiple second buckles 52 and second slots 54 are included. The bran box 20 is detachably connected to the end of the bran suction duct 42 with the duct outlet 422 via at least one second buckle 52 and at least one second slot 54. The other parts of the bran box 20 and the bran suction duct 42, except for the end with the duct outlet 422, are detachably connected via at least one second buckle 52 and at least one second slot 54. On the one hand, this design can effectively ensure the sealing performance at the duct outlet 422, avoiding air leakage or other adverse phenomena during use, thereby maintaining the normal operation and efficient work of the equipment. On the other hand, it can also greatly improve the stability of the bran box 20 when installed relative to the rice milling body 10, making the connection between the two more secure and precise, reducing problems such as the bran box 20 shaking or falling off due to unstable installation.

[0145] In one specific embodiment of this application, the bran box 20 is provided with a plurality of second slots 54, and the bran suction duct 42 is provided with a plurality of second buckles 52. Each second slot 54 is engaged with a corresponding second buckle 52. At least two second buckles 52 are provided at one end of the bran suction duct 42 with a duct outlet 422 and are symmetrically arranged relative to the central axis of the duct outlet 422. The remaining at least two second buckles 52 are provided below the duct outlet 422 of the bran suction duct 42 along the height direction of the housing assembly 11.

[0146] The symmetrically arranged second buckles 52 can form a uniform clamping force on the edge of the air duct outlet 422, further ensuring the sealing effect at the joint between the air duct outlet 422 and the bran box 20 bran inlet 21, avoiding local air leakage and reducing the bran suction efficiency. The additional second buckles 52 at the bottom can fix the lower half of the bran suction air duct 42, improve the stability of the overall connection between the bran box 20 and the bran suction air duct 42, and prevent misalignment of the connection position during the disassembly and installation of the bran box 20.

[0147] In some embodiments, when the bran box 20 is provided with a second slot 54, a reinforcing part 56 is provided on the outer periphery of the second slot 54, and the reinforcing part 56 is arranged around the second slot 54.

[0148] The reinforcing part 56 refers to a part that can strengthen the structural strength of the component to make the structure more stable. For example, a raised reinforcing rib can be provided around the outer periphery of the second slot 54, surrounding the opening of the second slot 54.

[0149] This increases the structural strength of the opening 221 of the second slot 54, preventing the second slot 54 from cracking or deforming due to repeated stress during frequent disassembly of the bran box 20 by the user, thus extending the service life of the second slot 54. At the same time, it also ensures the long-term engagement accuracy of the second buckle 52 and the second slot 54, maintaining the stability and sealing performance of the bran box 20 installation.

[0150] See Figures 2-6 In the embodiments of this application, the suction port 27 of the bran box 20 is provided on the top wall of the bran box 20 along the height direction of the housing assembly 11, and the bran suction fan 30 can communicate with the suction port 27 on the top wall of the bran box 20.

[0151] By setting the suction port 27 on the top wall of the bran box 20, as the rice bran inside the bran box 20 accumulates, the suction port 27 will not be blocked by the rice bran collected inside the bran box 20. Therefore, the reliability of sucking rice bran into the bran box 20 is improved.

[0152] Furthermore, the bran suction fan 30 is located on the side of the bran box 20 facing the inside of the housing assembly 11 along the width direction of the housing assembly 11. The household rice milling machine 100 also includes a fan duct 60, which connects the suction port 27 and the air inlet 31 of the bran suction fan 30.

[0153] The blower duct 60 is a connecting channel for connecting the suction port 27 and the chaff suction blower 30.

[0154] Because the chaff suction fan 30 has a large volume, placing it directly above the chaff box 20 would leave insufficient space, and the chaff box 20 as a whole could not support the weight of the chaff suction fan 30. Therefore, in this embodiment, the chaff suction fan 30 is placed on the side of the chaff box 20. By setting a fan duct 60 to connect the suction port 27 and the air inlet 31 of the chaff suction fan 30, the space for placing the chaff suction fan 30 becomes sufficient, and the chaff suction fan 30 can be reliably supported by other mechanisms inside the housing assembly 11. Therefore, the installation reliability of the chaff suction fan 30 is improved.

[0155] Specifically, the cross-sectional area of ​​the fan duct 60 gradually decreases from the suction port 27 toward the air inlet 31 of the chaff suction fan 30.

[0156] In this way, on the one hand, the area of ​​the suction port 27 can be increased to improve the suction efficiency; on the other hand, by gradually reducing the cross-sectional area along the airflow direction, a stronger suction force can be provided to the suction port 27, thereby improving the suction effect of sucking rice bran into the bran box 20.

[0157] When the bran box 20 is fixed to the rice milling body 10 and cannot be removed, the blower duct 60 can be fixedly connected to the bran box 20 through the second connector 62, and the blower duct 60 can be fixedly connected to the bran suction fan 30 through the third connector 64. Specifically, there are multiple second connectors 62 and third connectors 64. One end of the blower duct 60 connected to the suction port 27 is fixedly connected to the bran box 20 through at least one second connector 62, and one end of the blower duct 60 connected to the air inlet 31 of the bran suction fan 30 is fixedly connected to the bran suction fan 30 through at least one third connector 64.

[0158] See Figure 11 When the bran box 20 is detachable from the rice milling body 10, the blower duct 60 can be detachably connected to the bran suction fan 30. In other words, when the bran box 20 is detached from the rice milling body 10, the blower duct 60 can be detached along with the bran box 20. Specifically, one end of the blower duct 60 that connects to the air inlet 31 of the bran suction fan 30 is detachably connected to the bran suction fan 30.

[0159] It should be noted that since the suction port 27 is located on the top wall of the bran box 20 along the height direction of the housing assembly 11, when the bran box 20 is disassembled along the width direction of the housing assembly 11 in a direction away from the housing assembly 11, the connection between the fan duct 60 and the bran box 20 is along the height direction of the housing assembly 11 due to the position of the suction port 27. Therefore, it is perpendicular to the disassembly direction, which is not conducive to the separation of the fan duct 60 and the bran box 20. In this embodiment, through the conversion of the fan duct 60, the exhaust port can be connected to the air inlet 31 of the bran suction duct 42 along the width direction of the housing assembly 11 via the fan duct 60. Therefore, setting the fan duct 60 and the bran suction fan 30 to be detachably connected is exactly in the same direction as the disassembly. Thus, when disassembling the bran box 20, the fan duct 60 can be disassembled at the same time, which simplifies the disassembly difficulty and improves the disassembly efficiency. Furthermore, the fan duct 60 has a small structural size, and its disassembly will not affect the cleaning of the bran box 20, thus not increasing the cleaning difficulty for users.

[0160] In the embodiments of this application, the blower duct 60 and the bran suction blower 30 are engaged. Thus, the bran box 20 can be engaged with the bran suction blower 30 via the blower duct.

[0161] Based on the above description, it should be noted that when the bran box 20 is detachable from the rice milling body 10, the bran box 20 has two detachable connections with other components of the household rice milling machine 100: one is a snap-fit ​​connection with the connecting channel 40, and the other is a snap-fit ​​connection with the bran suction fan 30. In other words, the bran box 20 can be separated from both the bran suction fan 30 and the connecting channel during the process of being pulled out relative to the rice milling body 10.

[0162] When the user removes the bran box 20 for cleaning, the two locking mechanisms automatically disengage. After cleaning, the bran box 20 is aligned and pushed back in, and the two locking mechanisms automatically lock in place. This makes installation and disassembly very simple, requiring no additional tools and making cleaning the bran box 20 easy. Simultaneously, the two locking mechanisms ensure a tight seal at the connection points between the bran box 20 and the suction fan 30 and the connecting channel, preventing air leakage and reducing the suction negative pressure, thus ensuring stable bran suction efficiency.

[0163] More specifically, the end of the blower duct 60 that connects to the air inlet 31 of the chaff suction blower 30 is detachably connected to the chaff suction blower 30 via the third buckle 32 and the third slot 66.

[0164] One of the third clip 32 and the third slot 66 is located on the fan duct 60, and the other is located on the bran suction fan 30. The second clip 52 can engage with the second slot 54. When the user pulls out the bran box 20, the third clip 32 can be directly disengaged from the third slot 66. When the bran box 20 needs to be installed, it can be aligned and pushed in to complete the engagement and fixation. Thus, installation and disassembly are very simple and do not require additional tools.

[0165] Furthermore, multiple third clips 32 and third slots 66 are included. One end of the blower duct 60 connecting to the air inlet 31 of the rice husk suction fan 30 is detachably connected to the rice husk suction fan 30 via multiple third clips 32 and multiple third slots 66. On the one hand, this design can effectively ensure the sealing performance between the blower duct 60 and the rice husk suction duct 42, avoiding air leakage or other adverse phenomena during use, thereby maintaining the normal operation and efficient work of the equipment. On the other hand, it can also greatly improve the stability of the rice husk box 20 when installed relative to the rice milling body 10, making the connection between the two more secure and precise, reducing problems such as shaking or falling off of the rice husk box 20 due to unstable installation.

[0166] In one specific embodiment of this application, the blower duct 60 is provided with a plurality of third slots 66, and the chaff suction blower 30 is provided with a plurality of third buckles 32. Each third slot 66 is engaged with a corresponding third buckle 32, and all the third buckles 32 are symmetrically arranged relative to the central axis of the air inlet 31 of the chaff suction blower 30.

[0167] The symmetrically arranged third buckle 32 can form a uniform clamping force on the edge of the air inlet 31, further ensuring the sealing effect at the joint between the blower duct 60 and the air inlet 31 of the chaff suction blower 30, avoiding local air leakage that reduces the suction force, and maintaining a stable chaff suction efficiency.

[0168] See Figure 4 In the embodiments of this application, the bran box 20 also has a filter port 28, which connects the suction port 27 and the inner cavity of the bran box 20. The household rice milling machine 100 also includes a filter assembly 70 covering the filter port 28, which is used to filter rice bran. Specifically, the filter port 28 is located upstream of the suction port 27 along the flow direction of the suction airflow, and the bran box 20 also forms a transition channel between the filter port 28 and the suction port 27.

[0169] The filter assembly 70 refers to a combination of porous mesh components and other auxiliary parts that can block rice bran from entering the rice bran suction fan 30 and allow only airflow to pass through. Specifically, the filter assembly 70 can be a filter screen 712 plate, the mesh size of which is set to be smaller than the size of rice bran particles, so as to ensure smooth airflow while reliably blocking rice bran.

[0170] After the rice bran enters the bran box 20 with the suction airflow, it will remain inside the bran box 20 due to the blocking effect of the filter component 70. The filtered airflow will then enter the bran suction fan 30 through the suction port 27 and the fan duct 60, and finally be discharged from the air outlet 36 of the bran suction fan 30. This can ensure smooth airflow and prevent rice bran from entering the bran suction fan 30 and causing fan blockage or wear of parts, thus extending the service life of the bran suction fan 30. It also makes it easier to clean the rice bran in the bran box 20 later.

[0171] The transition channel allows the filtered airflow to flow more smoothly and orderly toward the suction port 27, avoiding the airflow directly impacting the suction port 27 and causing turbulent noise. At the same time, it can also guide and settle the fine rice bran that has not yet been intercepted by the filter component 70, further improving the filtration and interception effect and reducing the probability of rice bran entering the bran suction fan 30.

[0172] Specifically, the filter port 28 is positioned facing the opening 221 of the housing 22, so that the filter assembly 70 is also positioned facing the opening 221 of the housing 22.

[0173] When the lid 23 is opened, the filter assembly 70 is positioned facing the opening 221 of the box body 22, allowing the filter assembly 70 to be exposed through the opening 221, so that the user can clean the filter assembly 70 at the same time when cleaning the bran box 20.

[0174] Furthermore, the filter port 28 is provided on the inner wall of the bran box 20, and the wall surface forming the filter port 28 is inclined towards the bottom wall of the inner cavity of the bran box 20 in the height direction relative to the housing assembly 11.

[0175] By placing the filter port 28 on the inner wall of the bran box 20, the area of ​​the filter port 28 can be increased, thereby increasing the area of ​​the filter assembly 70. Therefore, during the process of filtering rice bran, the rice bran can be prevented from completely clogging the filter assembly 70, thus affecting the smooth flow of the suction airflow. In addition, the wall surface forming the filter port 28 is set to be inclined towards the bottom wall of the inner cavity of the bran box 20 in the height direction relative to the housing assembly 11, and the filter assembly 70 is also inclined accordingly. Therefore, when the suction fan 30 stops suction, the rice bran adsorbed on the filter assembly 70 can fall towards the bottom wall of the inner cavity of the bran box 20 under the action of gravity, reducing the risk of rice bran clogging the filter assembly 70.

[0176] Specifically, the filter assembly 70 has an angle of 60 to 80 degrees relative to the first plane. The first plane is parallel to the height and width directions of the housing assembly 11.

[0177] See Figure 12 and Figure 13In some embodiments, the filter assembly 70 is detachable from the bran box 20. Specifically, the filter assembly 70 can be detached after the bran box 20 is removed from the rice milling body 10.

[0178] When cleaning the bran box 20, the filter assembly 70 can be removed simultaneously to clean the rice bran adhering to it. This ensures that the filter assembly 70 maintains good filtration and air permeability, preventing the mesh from becoming clogged with rice bran and affecting the airflow of the suction system. This, in turn, guarantees the continuous and stable suction efficiency of the rice bran suction fan 30. The detachable design also makes cleaning more flexible and convenient, improving the ease with which users can clean the bran box 20 and related components.

[0179] Specifically, the bran box 20 is provided with a guide rail 29 on the outer periphery of the suction port 27, and the filter assembly 70 can be inserted into or removed from the bran box 20 along the guide rail 29.

[0180] The guide rail 29 refers to the structure that guides the filter assembly 70 to be installed into the bran box 20 and ensures that its position is correctly aligned with the suction port 27.

[0181] When the filter assembly 70 is inserted along the guide rail 29 on the outer periphery of the suction port 27, it can stably and correctly cover the suction port 27, so that the filter assembly 70 can play a filtering and blocking role at every position of the suction port 27. When it is necessary to disassemble the filter assembly 70 for cleaning, the filter assembly 70 can be pulled out directly along the guide rail 29. Therefore, the overall disassembly and assembly operation of the filter assembly 70 is simple and smooth, and cleaning and maintenance are also simple.

[0182] Traditional filter elements 71 often suffer from low cleaning and maintenance efficiency due to their fixed structure and difficulty in disassembly, easily leading to rice bran dust accumulation, blockage, or seal failure, affecting the operating accuracy and lifespan of the equipment. However, this application utilizes the guide rail 29 design, allowing the filter assembly 70 to be easily pulled out and disassembled. Users can easily remove it to thoroughly clean the rice bran dust adhering to the mesh, and then simply insert it back along the guide rail 29 to complete the reset. The entire process requires no additional tools, significantly reducing maintenance difficulty. Simultaneously, it ensures the long-term air permeability of the filter assembly 70, preventing mesh blockage from affecting the flow of the rice bran suction air and maintaining the stable suction efficiency of the rice bran suction fan 30.

[0183] Specifically, the guide rail 29 extends along a first direction, and the guide rail 29 is capable of restricting the movement of the filter assembly 70 relative to the bran box 20 along a second direction and a third direction. The first direction, the second direction, and the third direction all intersect.

[0184] The first direction is the same as the tilt direction of the filter component 70, meaning that the first direction intersects both the height and width directions of the housing component 11. The second and third directions can be perpendicular to the first direction, or they can intersect the first direction at other angles other than 90 degrees. Specifically, when the second and third directions are perpendicular to the first direction, the third direction can be parallel to the length direction of the housing component 11.

[0185] When the guide rail 29 can restrict the movement of the filter assembly 70 relative to the bran box 20 in the second and third directions, the filter assembly 70 can be quickly fixed when assembled into the bran box 20. And because the part of the filter assembly 70 that mates with the guide rail 29 is restricted by the guide rail 29, the filter assembly 70 can be more reliably fixed on the bran box 20.

[0186] Specifically, a guide groove is formed on one side of the guide rail 29, allowing the edge of the filter assembly 70 to be inserted into or removed from the bran box 20 along the guide groove. In other embodiments, the edge of the filter assembly 70 may also have a guide groove, allowing it to be inserted into or removed from the bran box 20 along the guide rail 29.

[0187] In some embodiments, the guide rails 29 include two rails located on opposite sides of the filter port 28 along a third direction, and the filter assembly 70 can be inserted into or removed from the bran box 20 along the two guide rails 29.

[0188] By setting two guide rails 29, the filter assembly 70 can be guided by the guide rails 29 on both sides simultaneously, improving the smoothness and stability of inserting or removing the filter assembly 70 from the bran box 20. In addition, when the guide rails 29 can restrict the filter assembly 70 in a second direction, and both sides of the filter assembly 70 can be restricted by the guide rails 29, the force on the filter assembly 70 is more even, and the fixed installation of the bran box 20 is more stable and reliable.

[0189] In some embodiments, the filter assembly 70 includes a filter element 71 and a clamping element 72. The filter element 71 is disposed over the filter opening 28, and the clamping element 72 is disposed on the side of the filter element 71 facing away from the filter opening 28, for pressing the filter element 71 against the bran box 20.

[0190] The filter element 71 is a porous mesh component that prevents rice bran from entering the rice bran suction fan 30, allowing only airflow to pass through. The clamping element 72 is a component used in conjunction with the filter element 71. Its function is to press against and tighten against the surface of the filter element 71 under the constraint of external force or external components, thereby fixing and stabilizing it and reducing the possibility of the filter element 71 shifting due to external force or other factors during use. Specifically, the clamping element 72 can press the filter element 71 against the rice bran box 20 by limiting its movement against the guide rail 29 mentioned above.

[0191] By placing the clamping member 72 on the side facing away from the filter port 28 and pressing it against the filter member 71, not only can the filter member 71 be made to fit more tightly against the bran box 20, but the filter member 71 can also be effectively prevented from easily shifting when subjected to external impact or other interference.

[0192] Specifically, the filter element 71 is constructed as a perforated metal mesh. The perforated metal mesh has a tighter mesh, which can effectively intercept rice husk impurities while ensuring smooth airflow. Furthermore, the metal material makes the filter element 71 more durable, more reliable in structure, and has a longer service life.

[0193] In some embodiments, a first grid structure 281 is provided at the filter port 28, and the filter element 71 includes a mesh support 711 and a filter screen 712 disposed on the mesh support 711. The mesh support 711 has a second grid structure 7111, and the first grid structure 281 and the second grid structure 7111 are positioned corresponding to each other.

[0194] The first grid structure 281 and the second grid structure 7111 refer to the mesh-like hollow support structures respectively set on the filter port 28 and the mesh support 711. The first grid structure 281 is formed by multiple spaced horizontal and vertical ribs integrally molded from the hull box 20 at the filter port 28 to form a grid hollow, which can support and limit the filter element 71 after it is installed in place, and prevent the filter element 71 from collapsing and deforming under the suction of airflow. The second grid structure 7111 is formed by intersecting ribs integrally molded from the mesh support 711 to form a hollow, which can provide a stable support frame for the filter screen 712, preventing the filter screen 712 from loosening and deforming due to airflow impact during long-term use, and will not obstruct the filter screen 712 too much, ensuring that the suction airflow can pass through normally.

[0195] By setting the first grille structure 281 to correspond to the position of the second grille, the two can cooperate with each other to form a stable support for the filter screen 712. While ensuring the air permeability of the filter, the overall structural stability of the filter assembly 70 is improved, and the service life of the filter assembly 70 is extended.

[0196] Furthermore, the clamping member 72 has a third grid structure 721, which corresponds to the position of the second grid structure 7111.

[0197] In this way, the clamping element 72 can further expand its contact area with the filter element 71 without obstructing the normal flow of air. This not only ensures smooth airflow but also applies pressure to the filter element 71 more firmly and reliably, thereby effectively clamping the filter element 71 and ensuring the functionality and stability of the overall structure.

[0198] Specifically, the first grille structure 281, the second grille structure 7111, and the third grille structure 721 are all structures with at least four grille holes. For example, the first grille structure 281, the second grille structure 7111, and the third grille structure 721 are structures with four, six, or eight grille holes, respectively.

[0199] In some embodiments, the filter assembly 70 further includes an elastic buffer 73 disposed between the filter assembly 71 and the clamping member 72.

[0200] The elastic buffer 73 can buffer the airflow impact on the filter element 71, reduce the vibration of the filter element 71 during operation, and reduce the probability of the filter element 71 being damaged or loosened due to repeated vibration. At the same time, it can also fill the assembly gap between the filter element 71 and the clamping element 72, making the overall structure of the filter assembly 70 more compact and stable, and ensuring the stability of the filtration effect.

[0201] Specifically, the elastic buffer 73 can be made of elastic porous material 37, such as sponge, or it can be made of materials with good elasticity such as foamed rubber or flexible silicone, which can not only play a role in cushioning and shock absorption, but also will not obstruct the normal flow of air.

[0202] In some embodiments, the bran box 20 includes a bran box 20 body and a limiting bracket 201. The bran box 20 body has a filter port 28. The limiting bracket 201 is detachably disposed on the bran box 20 body. The filter assembly 70 includes a first end that contacts the guide rail 29 first and a second end that is opposite to the first end along the insertion direction. The first end can be limited on the bran box 20 body along the first direction, and the limiting bracket 201 can limit the second end along the first direction.

[0203] The insertion direction is the direction in which the filter assembly 70 is inserted into the bran box 20 along the guide rail 29, and the insertion direction is parallel to the first direction.

[0204] When the filter assembly 70 is inserted into the body of the bran box 20 along the guide rail 29, its first end can abut against the body of the bran box 20 along the guide rail 29, thus restricting it to the body of the bran box 20 and preventing it from continuing to move in the insertion direction. At this time, the limiting bracket 201 is installed, and the second end of the filter assembly 70 can be restricted by the limiting bracket 201 and cannot move in the pull-out direction opposite to the insertion direction. Therefore, both ends of the filter assembly 70 can be restricted, so that the filter assembly 70 is fixed on the bran box 20 as a whole. Therefore, the fixed installation of the filter assembly 70 relative to the bran box 20 is more stable and reliable.

[0205] Furthermore, the limiting bracket 201 is covered with a filter port 28, and a transition channel is formed between it and the body of the bran box 20. The limiting bracket 201 has a suction port 27, and the transition channel connects the suction port 27 and the filter port 28.

[0206] In other words, the limiting bracket 201 not only serves to assist in limiting the filter assembly 70, but also forms a transition channel between the suction port 27 and the filter port 28 between the bracket and the body of the bran box 20. There is no need to make a separate transition channel between the filter port 28 and the suction port 27, thus simplifying the overall structure of the bran box 20.

[0207] Specifically, the limiting bracket 201 has a groove on the side facing the body of the bran box 20, and the opening 221 of the groove can cover the filter port 28.

[0208] In order to prevent the limiting bracket 201 from protruding relative to the body of the bran box 20, in the embodiments of this application, the limiting bracket 201 can be installed in the mounting cavity 202 of the body of the bran box 20.

[0209] Specifically, along the width direction of the housing assembly 11, the body of the bran box 20 has a recessed mounting cavity 202 on the side facing the inside of the housing assembly 11, and the limiting bracket 201 is installed in the mounting cavity 202.

[0210] Since the limiting bracket 201 has an exhaust port, it needs to be closer to the chaff suction fan 30. Therefore, the mounting cavity 202 of the chaff box 20 body is set inside the chaff box 20 body, which can be closer to the chaff suction fan 30 and facilitates the integration of various structures.

[0211] Alternatively, the wall surface forming the filter port 28 can be the side wall of the mounting cavity 202.

[0212] Furthermore, one end of the limiting bracket 201 along the height direction of the housing assembly 11 is inserted into the bottom wall of the mounting cavity 202, and the other end is detachably connected to the main body of the bran box 20 through the fourth buckle 2012 and the fourth slot 203.

[0213] In this way, during the process of installing the limiting bracket 201 into the mounting cavity 202 of the bran box 20 body, the bottom end can be inserted into the bottom wall of the mounting cavity 202 to pre-position the limiting bracket 201 on the bran box 20 body. After this pre-positioning is completed, the other end of the limiting bracket 201 is then engaged with the bran box 20 body using the fourth snap-fit ​​2012 and the fourth slot 203. Through this installation process, the limiting bracket 201 can be quickly installed relative to the bran box 20 body. Moreover, in actual use, if it is necessary to remove the limiting bracket 201, the engagement between the fourth snap-fit ​​2012 and the fourth slot 203 can be released first. After the engagement is released, the limiting bracket 201 can be directly pulled out, thus achieving the function of quick removal of the limiting bracket 201 relative to the bran box 20 body. The whole process is both convenient and efficient.

[0214] Specifically, the bottom wall of the mounting cavity 202 is provided with either a socket 2021 or a plug 2011, and the limiting bracket 201 is provided with either a socket 2021 or a plug 2011, and the socket 2021 and the plug 2011 are connected to each other.

[0215] The connection between the socket 2021 and the plug 2011 is simple, simplifying the plugging and unplugging process. Furthermore, the structure of the socket 2021 and the plug 2011 is also simple, simplifying the structure of the limiting bracket 201 and the main body of the chaff box 20.

[0216] In one specific embodiment, the bottom wall of the mounting cavity 202 is provided with insertion holes 2021, and the limiting bracket 201 is provided with plugs 2011. The insertion holes 2021 on the bottom wall of the mounting cavity 202 include at least two holes, all of which are spaced apart along a third direction. The plugs 2011 of the limiting bracket 201 also include at least two, and each plug 2011 is plugged into a corresponding insertion hole 2021. For example, the number of insertion holes 2021 can be 2, 3, 4, etc., and the corresponding number of plugs 2011 can be 2, 3, 4, etc.

[0217] Specifically, the fourth buckle 2012 or fourth slot 203 of the limiting bracket 201 includes at least two, and the at least two fourth buckles 2012 or fourth slots 203 are disposed on opposite sides of the limiting bracket 201 along a third direction.

[0218] In this way, the forces on both sides of the limiting bracket 201 are balanced, and the limiting bracket 201 is more stably fixed relative to the body of the chaff box 20.

[0219] In one specific embodiment, the limiting bracket 201 includes two fourth latches 2012, one of which is located on one side of the limiting bracket 201 along a third direction, and the other is located on the opposite side of the limiting bracket 201 along the third direction. Furthermore, the fourth latches 2012 can be elastic latches. In actual use, when they engage with or disengage from the fourth latch 203, they are subjected to external force and deform to a certain extent. This deformation characteristic allows the engagement process to be completed more smoothly and effectively.

[0220] In the embodiments of this application, when the exhaust port is set on the limiting bracket 201, one end of the fan duct 60 connected to the suction port 27 is installed on the limiting bracket 201 and is detachable from the relative limiting bracket 201.

[0221] Thus, when the bran box 20 is detachable from the rice milling body 10, the blower duct 60 will be detached along with the bran box 20. If you want to disassemble and clean the filter assembly, you first need to remove the blower duct 60 from the limiting bracket 201, and then remove the limiting bracket 201 from the bran box 20 body, thereby disassembling the filter assembly.

[0222] Specifically, one end of the fan duct 60 connected to the suction port 27 is detachably connected to the limiting bracket 201 via the fifth buckle 204 and the fifth slot 68.

[0223] One of the fifth clip 204 and the fifth slot 68 is located on the fan duct 60, and the other is located on the limiting bracket 201. The fifth clip 204 can engage with the fifth slot 68. When the user disassembles the fan duct 60, the fifth clip 204 can be directly released from the fifth slot 68. When the user needs to install the fan duct 60, simply align it and push it in to complete the engagement and fixation. Thus, installation and disassembly are very simple and do not require any additional tools.

[0224] Furthermore, multiple fifth clips 204 and fifth slots 68 are included. One end of the fan duct 60 connected to the exhaust port is detachably connected to the limiting bracket 201 via multiple fifth clips 204 and multiple fifth slots 68. The cooperation of multiple fifth clips 204 and fifth slots 68 makes the connection between the fan duct 60 and the limiting bracket 201 more stable and secure, preventing the duct from loosening or shifting during operation, ensuring the sealing of the fan duct 60, and thus ensuring the straw suction efficiency of the straw suction fan 30.

[0225] In one specific embodiment of this application, the fan duct 60 is provided with a plurality of fifth slots 68, and the limiting bracket 201 is provided with a plurality of fifth buckles 204. Each fifth slot 68 is engaged with a corresponding fifth buckle 204, and all the fifth buckles 204 are symmetrically arranged relative to the central axis of the exhaust port.

[0226] The symmetrically arranged fifth buckle 204 can form a uniform clamping force on the edge of the exhaust port, further ensuring the sealing effect at the joint between the fan duct 60 and the limiting bracket 201, avoiding local air leakage that reduces the suction force, and maintaining a stable suction efficiency.

[0227] See Figure 5 and Figure 6In some embodiments, the rice bran suction fan 30 includes a first fan housing 33, a fan body 34, and a second fan housing 35. The second fan housing 35 and the first fan housing 33 are spliced ​​along the axial direction of the fan body 34 to form a first receiving cavity for accommodating the fan body 34. The first fan housing 33 and the second fan housing 35 also have an air inlet 31 and an air outlet 36 communicating with the first receiving cavity. The air inlet 31 communicates with the suction port 27 of the rice bran box 20, and the air outlet 36 communicates with the outside of the rice bran suction fan 30. The first fan housing 33 is fixedly connected to the rice bran box 20, and the second fan housing 35 is fixedly connected to the rice milling mechanism 12.

[0228] One end of the bran-suction fan 30 needs to be connected to the bran box 20, which in turn needs to be connected to the rice milling mechanism 12. Due to this connection, the positions of the bran box 20 and the rice milling mechanism 12 are relatively close. Based on this structural feature, in the embodiments of this application, the first fan housing 33 and the bran box 20 are fixedly connected, and the second fan housing 35 is also fixedly connected to the rice milling mechanism 12. The fan body 34 is then fixed using the first receiving cavity formed by the two components. In this way, the existing structure around the bran-suction fan 30 can be fully utilized, thereby effectively improving the installation stability of the bran-suction fan 30. In addition, this design method can also make the overall structure of the machine more compact and have a higher degree of integration, further optimizing the overall layout and performance of the equipment.

[0229] Specifically, the first fan housing 33 has an air inlet duct 331 and a first sub-accommodating cavity 332, and the second fan housing 35 has a second sub-accommodating cavity 351. One end of the air inlet duct 331 is connected to the suction port 27, and the other end of the air inlet duct 331 is connected to the first sub-accommodating cavity 332. The first sub-accommodating cavity 332 and the second sub-accommodating cavity 351 are spliced ​​together to form the first accommodating cavity.

[0230] It should be noted that the air inlet duct 331 is an integral structure with a complete channel structure, and does not need to be spliced ​​and combined with other parts of the first fan housing 33 or the second fan housing 35.

[0231] Therefore, the first fan casing 33 has an independent air inlet channel, which is fixedly connected to the bran box 20. This not only significantly improves the connection stability between the first fan casing 33 and the bran box 20, but also effectively reduces air leakage during transmission.

[0232] Specifically, the air inlet channel has an air inlet 31 and a connecting port that communicates with the first sub-accommodating cavity 332. The central axis of the air inlet 31 is parallel to the width direction of the housing assembly 11, the central axis of the connecting port is parallel to the height direction of the housing assembly 11, and the axis of the fan body 34 coincides with the central axis of the connecting port.

[0233] In other words, through the function of the air inlet channel, the airflow from the exhaust port can be changed from the direction of flow along the width of the housing assembly 11 to the direction of flow along the height of the housing assembly 11, and then enter the fan body 34.

[0234] Since the axial direction of the blower body 34 is parallel to the height direction of the housing assembly 11, the blower body 34 can be supported on the rice milling mechanism 12 with the side having a larger area in the axial direction along the height direction of the housing assembly 11, making the installation of the blower body 34 more stable and the operation more reliable.

[0235] In some embodiments, one of the first fan housing 33 and the second fan housing 35 is provided with a positioning post 333, and the other is provided with a positioning hole 352. The positioning post 333 and the positioning hole 352 cooperate to position the first fan housing 33 and the second fan housing 35.

[0236] The cooperation between the positioning post 333 and the positioning hole 352 allows the first fan housing 33 and the second fan housing 35 to be quickly aligned during splicing, avoiding misalignment and ensuring the forming accuracy of the first receiving cavity. This, in turn, ensures the installation stability of the fan body 34 within the first receiving cavity, while also simplifying the splicing and assembly steps and improving assembly efficiency. Specifically, the positioning post 333 and the positioning hole 352 are respectively set on the splicing end face, and at least two sets can be set, arranged at intervals along the circumference, making the splicing positioning more accurate and stable. For example, the first fan housing 33 has multiple positioning posts 333, and the second fan housing 35 has multiple positioning holes 352, with each positioning post 333 cooperating with a corresponding positioning hole 352.

[0237] In addition, the first fan casing 33 and the second fan casing 35 are spliced ​​together by a snap-fit ​​method.

[0238] Before fastening, the first fan housing 33 and the second fan housing 35 are pre-positioned through the cooperation of the positioning hole 352 and the positioning post 333. Therefore, by setting the first fan housing 33 and the second fan housing 35 to be fastened together, the use of additional fasteners can be eliminated, the splicing and assembly operation can be simplified, the processing cost can be reduced, and the disassembly and maintenance of the two can be made more convenient, making it easier to inspect and clean the fan body 34.

[0239] In some embodiments, the rice milling mechanism 12 includes a rice milling drive bracket 122 and a rice milling drive component 123, the rice milling drive component 123 being installed within the installation space formed by the rice milling drive bracket 122. The second fan housing 35 is fixed to the top wall of the rice milling drive bracket 122 along the height direction of the housing assembly 11.

[0240] The rice milling drive bracket 122 is suitable for mounting and protecting the rice milling drive component 123. It can also be used as a base for connecting other components of the rice milling mechanism 12. For example, the rice milling drive bracket 122 can also be connected to the screening bracket of the rice milling mechanism 12.

[0241] When the second fan housing 35 is fixedly installed on the top wall of the rice milling drive bracket 122 along the height direction of the housing assembly 11, firstly, from the perspective of vibration impact, this installation position cleverly avoids the core area of ​​the rice milling mechanism 12 where rice milling vibration is most intense. Therefore, placing the second fan housing 35 on the top wall can significantly reduce the adverse effects of vibration on the operational reliability of the rice hull suction fan 30, thereby ensuring that the rice hull suction fan 30 is more stable and efficient during operation. Secondly, from the perspective of installation structure, the rice milling drive bracket 122 must accommodate the rice milling drive component 123 to meet functional requirements, so its top wall is usually designed to have a large area and a stable structure. This larger top wall provides a better installation foundation for fixing the second fan housing 35. When the second fan housing 35 is fixed on it, not only can the structural advantages of the top wall be fully utilized, but the reliability of its installation can also be enhanced through a more reasonable fixing method, thereby further improving the working performance and service life of the rice hull suction fan 30.

[0242] Specifically, the second fan housing 35 can be fixed to the top wall of the rice milling drive bracket 122 using multiple screws. Of course, the second fan housing 35 can also be fixed using other fixing methods.

[0243] In some embodiments, the suction fan 30 further includes an elastic porous element 37, which is disposed in the first receiving cavity and compressed between the first fan housing 33 and the fan body 34, and surrounds the connection between the first fan housing 33 and the fan body 34.

[0244] Elastic porous component 37 refers to a part that is elastic and has a porous internal structure.

[0245] By compressing the elastic porous component 37 between the first fan housing 33 and the fan body 34, and surrounding the connection between them, it can both fill the assembly gap between the two using its elasticity to prevent airflow leakage and achieve a sealing effect, and absorb vibrations and noise generated by the operation of the fan body 34 through its porous structure, reducing overall noise and improving the user experience. Simultaneously, the compressed elastic porous component 37 restricts axial movement of the fan body 34, further enhancing the stability of the fan body 34 installation.

[0246] Specifically, the flexible porous component 37 is made of sponge. Sponge is inexpensive, and its elasticity and porous sound-absorbing and sealing properties meet the requirements. Of course, other materials, such as foam, can also be used to replace the flexible porous component 37, as long as they meet the usage requirements.

[0247] Furthermore, the end of the fan body 34 facing the first fan housing 33 is constructed as an axially protruding inlet end 341, which is connected to the end of the first fan housing 33 with a communication opening, and the elastic porous member 37 is sleeved on the inlet end 341.

[0248] In this way, the elastic porous component 37 can be positioned by the protruding inlet end 341, so that the elastic porous component 37 is accurately and stably positioned when assembled between the fan body 34 and the first fan housing 33.

[0249] In some embodiments, the suction fan 30 further includes an elastic damping pad 38, which is disposed between the fan body 34 and the second fan housing 35.

[0250] When the blower body 34 vibrates during operation, the elastic damping pad 38 can buffer the vibration transmitted from the rice milling mechanism 12 to the rice hulling blower 30, and can also buffer the vibration generated by the operation of the blower body 34 itself, so as to prevent the vibration from being transmitted to other parts of the machine and causing resonance, further reducing the noise of the whole machine and improving the operational stability.

[0251] Specifically, the elastic damping pad 38 can be fitted onto the outlet end of the blower body 34 facing the second blower housing 35, so that the elastic damping pad 38 is entirely placed between the end face of the blower body 34 and the inner wall of the second blower housing 35, evenly bearing the force of the blower body 34, and achieving better buffering and vibration reduction effect. The elastic damping pad 38 can be made of rubber or silicone, etc. Rubber or silicone has good elasticity, wear resistance, and anti-aging properties, can withstand vibration and compression for a long time, has a long service life, and is low in cost, meeting the usage requirements of the household rice milling machine 100.

[0252] In addition, the contour of the elastic damping pad 38 facing the fan body 34 is adapted to the contour of the fan body 34, and the contour of the elastic damping pad 38 facing the second fan housing 35 is adapted to the contour of the second fan housing 35.

[0253] This allows the elastic damping pad 38 to fit more closely with the fan body 34 and the second fan casing 35, further improving the damping effect.

[0254] In some embodiments, the elastic damping pad 38 may also be provided with a sleeve hole, which is sleeved on the end of the fan body 34 with the fan outlet. In this way, the elastic damping pad 38 can be more reliably fixed between the fan body 34 and the second fan housing 35, thereby further improving the damping effect.

[0255] In some embodiments, the fan body 34 includes a first housing 342, a second housing 343, and a fan. The first housing 342 and the second housing 343 are joined together along the axial direction of the fan body 34 to form a second receiving cavity for accommodating the fan. A fan inlet and a fan outlet communicating with the second receiving cavity are also formed between the first housing 342 and the second housing 343. The fan inlet is located at one end of the fan body 34 along the axial direction of the fan body 34, and the fan outlet is located on the circumferential side of the fan body 34 in a direction perpendicular to the axial direction of the fan body 34.

[0256] This structural design allows airflow to enter the fan body 34 along the axial direction, then exit from the fan outlet on the periphery, and finally exit from the air outlet 36 of the chaff suction fan 30. The airflow direction is smooth, the air pressure loss is small, and the suction efficiency of the chaff suction fan 30 can be guaranteed.

[0257] Specifically, the first housing 342 and the second housing 343 can be spliced ​​together by snap-fitting.

[0258] The upper and lower housings are connected by a bayonet structure, enabling quick installation and disassembly, thus providing great convenience to users. When cleaning the inside of the device is required, the upper and lower housings can be easily separated without any additional tools. The entire process is simple and quick, greatly improving cleaning efficiency.

[0259] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0260] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A household rice milling machine, characterized in that, include: The rice milling body includes a housing assembly and a rice milling mechanism disposed within the housing assembly; A bran box is located on one side of the rice milling mechanism along the width direction of the housing assembly and is partially exposed on the side of the housing assembly. The bran box has a bran inlet, which is connected to the bran outlet of the rice milling mechanism. A chaff suction fan is installed inside the housing assembly and is connected to the suction port of the chaff box. The chaff suction fan is used to provide suction airflow into the chaff box through the suction port. The filter assembly, wherein the bran box also has a filter port, the filter port being connected between the inside of the bran box and the suction port, and the filter assembly being disposed over the filter port.

2. The household rice milling machine according to claim 1, characterized in that, The housing assembly includes a first sidewall located on one side along its width direction, and a cavity is formed on the first sidewall that is recessed into the housing assembly, with at least a portion of the bran box placed within the cavity.

3. The household rice milling machine according to claim 2, characterized in that, The bran box includes a box body and a box lid. The box body is placed in the recessed cavity and is configured to be recessed inward relative to the first side wall. The box body has an opening on the opposite side of its recess. The box lid is closable and covers the opening and is exposed on the side of the housing assembly.

4. The household rice milling machine according to claim 3, characterized in that, The box body is configured with the opening on its entire side of the opposite recessed side so that the inner cavity of the box is fully exposed through the opening when the lid is opened.

5. The household rice milling machine according to claim 3, characterized in that, The lid is rotatably connected to the housing body along the top side of the housing assembly in the height direction, and the lid can open or close the opening during rotation; or The lid is rotatably connected to the box body along the first side of the length direction of the housing assembly, and the lid can open or close the opening during rotation.

6. The household rice milling machine according to claim 5, characterized in that, The lid also includes a handle, which comprises a first part and a second part that are connected to each other. When the top side of the lid is rotatably connected to the box body, the first part is located on the bottom side of the lid along the height direction of the housing assembly, and the second part is located on the side of the lid adjacent to the bottom side. or When the first side of the lid is rotatably connected to the box body, the first part is located on the second side of the lid opposite to the first side along the length direction of the housing assembly, and the second part is located on the side of the lid adjacent to the second side.

7. The household rice milling machine according to claim 5, characterized in that, A first snap-fit ​​structure is provided between the lid and the body of the box, and the lid and the body of the box are snapped together by the first snap-fit ​​structure.

8. The household rice milling machine according to any one of claims 1 to 7, characterized in that, The household rice milling machine also includes a bran receiving box and a bran suction duct. The bran receiving box is located below the bran discharge port of the rice milling mechanism along the height direction of the machine housing assembly and is connected to the bran discharge port. The bran suction duct is located between the bran receiving box and the bran receiving box along the width direction of the machine housing assembly and is used to connect the bran receiving box and the bran inlet.

9. The household rice milling machine according to claim 8, characterized in that, The rice bran receiving box is funnel-shaped, with its large-diameter end connected to the rice bran discharge port and its small-diameter end connected to the rice bran suction duct.

10. The household rice milling machine according to claim 8, characterized in that, The duct for sucking bran includes an inlet and an outlet. The inlet is connected to the bran receiving box, and the outlet is connected to the bran inlet. The outlet is located above the inlet along the height of the housing assembly and is closer to the top of the bran box.

11. The household rice milling machine according to claim 8, characterized in that, The bran suction duct includes an air duct inlet and an air duct outlet. The air duct inlet is connected to the bran receiving box, and the air duct outlet is connected to the bran inlet. The bran box and the end of the bran suction duct with the air duct outlet are fixedly connected to the bran box by at least one first connector. The side of the bran receiving box facing the bran box is fixedly connected to the bran box by at least another first connector.

12. The household rice milling machine according to any one of claims 1 to 7, characterized in that, The suction port of the bran box is located on the top wall of the bran box along the height direction of the housing assembly.

13. The household rice milling machine according to claim 12, characterized in that, The rice bran suction fan is located on the side of the rice bran box facing the inside of the housing assembly along the width direction of the housing assembly. The household rice milling machine also includes a fan duct that connects the suction port and the air inlet of the rice bran suction fan.

14. The household rice milling machine according to claim 13, characterized in that, The cross-sectional area of ​​the fan duct gradually decreases from the suction port toward the air inlet of the straw suction fan.

15. The household rice milling machine according to claim 13, characterized in that, The fan duct is fixedly connected to the bran box via a second connector, and the fan duct is fixedly connected to the bran suction fan via a third connector.

16. The household rice milling machine according to claim 13, characterized in that, The rice milling mechanism includes a rice milling drive bracket and a rice milling drive component, the rice milling drive component being installed within the installation space formed by the rice milling drive bracket; the rice bran suction fan is fixed to the top wall of the rice milling drive bracket along the height direction of the housing assembly.

17. The household rice milling machine according to any one of claims 1 to 7, characterized in that, The filter port is located on the inner wall of the bran box, and the wall surface forming the filter port is inclined towards the bottom wall of the inner cavity of the bran box in the height direction relative to the housing assembly.

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