Rice storage device

Abstract

The present invention discloses a rice storage device, comprising a accommodating unit having a accommodating space, a feeding unit, a sealing unit and a decompression unit. The bottom of the accommodating space is provided with a discharge port. The feeding unit is arranged below the discharge port, comprising a feeding port and a feeding cavity capable of moving between a first position communicating with the accommodating space and a second position communicating with the feeding port. The sealing unit comprises a sealing plate for sealing the feeding port, which moves between a sealing position for sealing the feeding port and an opening position for opening the feeding port in a manner of flipping around a flip axis. The decompression unit is used to make the pressure in the accommodating space lower than a predetermined pressure. According to the present invention, a negative pressure environment is conducive to preserving food for a long time. The feeding unit can reduce the frequency and degree of communication between the accommodating space and the external environment. The sealing plate seals and opens the feeding port in a flipping manner, which is flexible to control, is conducive to reducing the wear of the sealing plate, and can improve the ability of the accommodating space to remain sealed.

Description

Technical Field

[0001] The present invention relates to the field of kitchen utensils, and in particular to a rice storage device. Background Art

[0002] In daily life, people often buy large quantities of food ingredients like rice at once and store them in rice storage devices, such as plastic, metal, or ceramic rice buckets. Most of these rice storage devices simply isolate the rice storage space from the outside world, without being able to control various parameters of the storage space, such as temperature and humidity. For example, during long-term storage, rice respires, generating a large amount of heat. However, heat is difficult to dissipate within the enclosed storage space, and the high temperature environment can easily cause food ingredients to spoil. Furthermore, when rice is removed from the rice storage device, the storage space is connected to the external environment, and its temperature and humidity are easily affected by this external environment. Long-term storage can easily lead to problems such as moisture, mildew, staleness, and insect infestation, making it difficult to maintain freshness for a long time, resulting in a poor user experience.

[0003] To this end, the present invention provides a rice storage device to at least partially solve the problems in the prior art. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, the present invention provides a rice storage device, comprising:

[0006] A receiving unit, wherein the receiving unit has a receiving space, and a discharge port is provided at the bottom of the receiving space;

[0007] A material taking unit is provided below the discharge port, and comprises:

[0008] Feed opening; and

[0009] a material taking cavity, the material taking cavity being movable between a first position communicating with the accommodating space and a second position communicating with the material taking port, the material taking port being located below the material taking cavity;

[0010] a sealing unit, the sealing unit comprising a sealing plate for sealing the material taking opening, the sealing plate being movable between a sealing position for sealing the material taking opening and an opening position for opening the material taking opening in a manner of flipping about a flip axis; and

[0011] A decompression unit is communicated with the accommodating space and is used to reduce the pressure in the accommodating space to be lower than a predetermined pressure.

[0012] According to the rice storage device of the present invention, a negative pressure environment can be formed in the storage space through the decompression unit, thereby reducing the air content therein and slowing down the respiration of the food during storage, which is beneficial for preserving the food for a long time. The food in the storage space is taken out from the material taking port by the material taking unit, and the material taking port is sealed by the sealing plate when the food is not needed, which can reduce the frequency and degree of communication between the storage space and the external environment. The sealing plate seals and opens the material taking port in a flipping manner, which is more flexible to control and has less contact with other parts during movement, which is beneficial to reducing the wear of the sealing plate and ensuring its sealing performance, thereby improving the ability of the storage space to remain sealed.

[0013] Optionally, the sealing plate is flippably arranged below the material taking port via a transversely arranged rotating shaft, and the rotating shaft defines the flip axis. Thus, the installation structure of the sealing plate is simple and easy to implement.

[0014] Optionally, a first chute is provided on a side of the sealing plate facing away from the material extraction port, the first chute extending in a direction perpendicular to the flip axis and having a transverse opening; the sealing unit further comprises a sliding link and a driving member, the sliding link having a sliding shaft parallel to the flip axis, the sliding shaft extending from the transverse opening into the first chute and being movable relative to the first chute in the direction in which the first chute extends; the driving member is configured to drive the sliding link to reciprocate in a transverse direction perpendicular to the flip axis. Thus, such an arrangement can convert the linear movement of the sliding link into the flipping movement of the sealing plate, making the movement of the sealing plate easier to control.

[0015] Optionally, the first chute comprises two chute grooves spaced apart along the direction of the flip axis, the sliding link is disposed between the two first chute grooves, and the sliding shaft extends into the two first chute grooves in opposite directions, thereby preventing the sliding shaft from falling out of the first chute grooves.

[0016] Optionally, the driving member is an electromagnet, and the sliding connecting rod is connected to the movable iron core of the electromagnet. Thus, the driving member is easy to obtain, and the connection and control between the components are relatively simple.

[0017] Optionally, the driving member is an electric motor, the drive shaft of the electric motor being vertically arranged, the sliding link further comprising a second slot extending in a transverse direction different from the direction of reciprocating movement of the sliding link and having a vertical opening; the sealing unit further comprising a rotating link comprising a transverse rod and a vertical rod, the transverse rod being connected to the drive shaft of the electric motor, the vertical rod being offset relative to the drive shaft and extending from the vertical opening into the second slot, the vertical rod being movable relative to the second slot in the direction in which the second slot extends. Thus, the electric motor can achieve precise control of the flipping action of the sealing plate.

[0018] Optionally, the sealing unit further comprises a driving member connected to the rotating shaft to drive the sealing plate to flip. Thus, fewer parts are required, and the connection between the parts is simple, which is easy to produce.

[0019] Optionally, the driving member is an electric motor, and the driving shaft of the electric motor is arranged in the transverse direction and connected to the rotating shaft. In this way, the driving member is easy to obtain and can achieve precise control.

[0020] Optionally, the sealing unit further comprises a detection member configured to send a position signal when the sealing plate moves to the sealing position and / or the open position. Thus, the position of the sealing plate can be detected by the detection member, making the control more precise.

[0021] Optionally, the rice storage device further comprises a control unit, the control unit being electrically connected to the detection member and the driving member respectively and configured to control the driving member to operate according to the in-position signal. Thus, automatic control can be achieved by the control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings of the present invention are incorporated herein as part of the present invention for understanding the present invention. The drawings show embodiments of the present invention and the description thereof is used to explain the principle of the present invention.

[0023] In the attached figure:

[0024] Figure 1 A three-dimensional view of a rice storage device according to a preferred embodiment of the present invention;

[0025] Figure 2 for Figure 1 A vertical cutaway view of the rice storage device shown;

[0026] Figure 3 for Figure 1 A top view of the base of the rice storage device shown;

[0027] Figure 4 for Figure 1 A bottom view of the base of the rice storage device is shown with the bottom plate omitted;

[0028] Figure 5 for Figure 1 An exploded perspective view of a sealing unit of the rice storage device is shown;

[0029] Figure 6 for Figure 1 A vertical cutaway view of the base of the rice storage device shown with the sealing plate in the sealing position; and

[0030] Figure 7 for Figure 1 A vertical cutaway view of the base of the rice storage device is shown with the sealing plate in the open position. DETAILED DESCRIPTION

[0031] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with embodiments of the present invention.

[0032] In order to fully understand the embodiments of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art.

[0033] The present invention provides a rice storage device that can be used to store granular food materials such as rice and beans. However, it is understood that the rice storage device according to the present invention can also store fruits or vegetables in the storage space. Therefore, the rice storage device can also be referred to as a food material storage device.

[0034] The rice storage device according to the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Accommodation unit

[0036] According to the present invention, the rice storage device includes a housing unit having a housing space. Figure 1 and Figure 2 As an example of a storage unit, a storage bin 10 is shown. In addition, the rice storage device 1 further includes a base 20. The storage bin 10 is configured as a structure separate from the base 20 and is detachably connected to the base 20.

[0037] The storage bin 10 includes a bin body 11 and a bin cover 12. The bin body 11 is roughly constructed in the shape of a rounded rectangular parallelepiped, which has a space located inside and an opening connected to the internal space formed at the top. The bin cover 12 covers the top of the bin body 11 to close the opening. Thus, a storage space 14 for storing food is formed between the bin cover 12 and the bin body 11. Exemplarily, the storage space 14 can be set to a larger volume so that it can store 5-10kg of food. The detachable setting allows the user to dismantle the storage bin 10 for cleaning, so that the interior of the bin remains clean and tidy, which is conducive to the long-term storage of food.

[0038] The bin lid 12 can be fixedly connected to the bin body 11, for example, by ultrasonic welding. A closable additional cover 13 is provided on the bin lid 12. Food ingredients can be placed in the storage space 14 by opening the additional cover 13. As a result, the additional cover 13 is smaller in size, making it easier to open and close. Furthermore, the opening corresponding to the additional cover 13 is smaller, which reduces the possibility of dust or debris falling into the storage space 14 through the opening when the additional cover 13 is opened. The additional cover 13 can be opened by, for example, pivoting about a pivot axis, pushing or pulling along a slide, or simply removing it.

[0039] As an alternative embodiment, the bin cover 12 can also be configured to be able to open and close relative to the bin body 11. For example, the bin cover 12 can be connected to the bin body 11 by being pivotable about a pivot axis or pushable and pullable along a slide. In this case, the additional cover 13 can be retained or omitted as needed.

[0040] The bottom of the silo 11 is provided with a discharge port 15 connected to the storage space 14. The food stored in the storage space 14 can automatically flow out of the discharge port 15 under the action of gravity, making it easy for the user to take it out. Therefore, the rice storage device 1 according to the present invention is particularly suitable for storing granular food with fluidity such as rice and beans. Preferably, the bottom of the silo 11 can be constructed as a bottom wall including an inclined inner side surface. The inner side surface can be composed of at least one inclined surface. And the discharge port 15 is set at the lowest position of the inclined surface. It can be understood that in this embodiment, the bottom of the silo 11 is roughly constructed as an inverted cone structure of a quadrangular pyramid. The discharge port 15 is set at the top of the inverted cone (that is, the lowest position of the silo 11). As a result, the bottom of the silo 11 has a slope, which can prevent food residue. As an alternative embodiment, the inner side surface of the bottom wall of the silo 11 can also be constructed as an arc-shaped inclined surface. And it can be understood that the inner side surface of the above-mentioned bottom wall can be a combination of an inclined surface and a flat surface.

[0041] Preferably, one of the storage compartment 10 and the base 20 can be provided with a latch, and the other can be provided with a buckle. When the storage compartment 10 is mounted to the base 20, the buckle engages with the latch, locking the two. Figure 2As shown, in this embodiment, the receiving compartment 10 is provided with a latch 16, and the base 20 is provided with a buckle 22. Of course, as an alternative embodiment, the receiving compartment 10 and the base 20 can also be locked by connecting with fasteners such as screws.

[0042] Pressure reducing unit

[0043] The rice storage device 1 according to the present invention further includes a decompression unit 30. The decompression unit 30 is in communication with the storage space 14 and is configured to reduce the pressure within the storage space 14 to or below a predetermined pressure value. For example, the pressure within the storage space 14 can be reduced to below atmospheric pressure by evacuating the storage space 14. A state in which the pressure within the storage space 14 is below atmospheric pressure is referred to as a negative pressure state. Under a negative pressure state, the air content—particularly the oxygen content—in the storage space 14 is low, significantly reducing the respiration of the stored food, thereby facilitating the preservation of the food during prolonged storage.

[0044] like Figure 2 As shown, the decompression unit 30 includes a vacuum pump 31. The air inlet of the vacuum pump 31 is connected to the storage space 14 to evacuate the storage space 14. In this embodiment, the vacuum pump 31 is arranged in the base 20, and is connected to the storage space 14 through an exhaust pipe 32 such as a silicone hose. Such an arrangement can avoid directly arranging the vacuum pump 31 on the storage bin 10, which is conducive to reducing the weight of the storage bin 10 and making it more lightweight. Of course, in another embodiment, the vacuum pump 31 can also be arranged on the storage bin 10 to shorten the gas flow path connecting the two.

[0045] More preferably, an air extraction channel 33 is provided within the storage space 14. One end of the air extraction channel 33 is connected to the air extraction pipe 32, and the other end is provided at the top of the storage space 14. Thus, the vacuum pump 31 extracts air from the top of the storage space 14, thus preventing food debris or dust from entering the air flow path of the decompression unit 30 and causing blockage.

[0046] Reclaiming unit

[0047] In order to conveniently and smoothly take out the food from the accommodating space 14, the rice storage device 1 according to the present invention further includes a material taking unit 40. Figure 2 、 Figure 3 and Figure 6As shown, the dispensing unit 40 is disposed below the discharge port 15 of the storage space 14 and includes a dispensing cavity 43 and a dispensing port 44. The dispensing cavity 43 is movable between a first position communicating with the discharge port 15 of the storage space 14 and a second position communicating with the dispensing port 44. In the first position, the dispensing cavity 43 can receive a predetermined amount of food from the discharge port 15. When the dispensing cavity 43 moves from the first position to the second position, the received predetermined amount of food can be dispensed through the dispensing port 44.

[0048] Preferably, the material taking port 44 is arranged below the material taking cavity 43. When the two are connected, gravity can be used to automatically drop the food in the material taking cavity 43, making it convenient for users to take it.

[0049] Preferably, if Figure 2 As shown, the rice storage device 1 further includes a material receiving box 60 disposed below the material taking opening 44 to collect the taken-out food and other materials. The material receiving box 60 is disposed in a removable manner. After the material taking unit 40 completes the material taking operation, the user can take the taken-out food from the material receiving box 60.

[0050] In this embodiment, the material taking unit 40 is arranged in the base 20. Such an arrangement is conducive to reducing the weight of the storage bin 10, making it more lightweight.

[0051] Specifically, if Figure 4 As shown, the base 20 includes a top plate 21 extending in the transverse direction. The top plate 21 is recessed downward at a position corresponding to the discharge port 15 to form a recessed portion (not shown) with a circular cross section for arranging the material taking unit 40.

[0052] The material taking unit 40 further comprises a turntable 42 for forming a movable material taking cavity 43. Figure 3 The turntable 42 is roughly circular and has a radially extending partition 421. A plurality of partitions 421 are arranged at intervals along the circumferential direction. The area between two adjacent partitions 421 defines a feeding cavity 43. According to design requirements, the number of partitions 421 can be set to two, three, five or more to define two, three, five or more feeding cavities 43 respectively. Each feeding cavity 43 can have an equal volume or can be set to have volumes of different sizes. For example, taking rice as an example, the amount of rice that each feeding cavity 43 can accommodate can be set to about 50-150g, so that users can take it in a quantitative manner according to the number of diners. The capacity of the feeding cavity 43 can be set to 75g, 90g, 100g, 120g or any value within the above range.

[0053] A turntable 42 is disposed within a recessed portion of the top plate 21 and is rotatable about the axis of the recessed portion when driven by a drive element, such as a motor. Furthermore, it will be appreciated that a material dispensing opening 44 is disposed on the bottom wall of the recessed portion. As the turntable 42 rotates, the material dispensing chamber 43 moves between a first position, which communicates with the discharge port 15, and a second position, which communicates with the material dispensing opening 44, respectively.

[0054] Although not shown, the retrieving unit 40 may further include a cover plate that covers and seals the recessed portion. The cover plate is provided with a feed port for communicating with the discharge port 15 of the accommodating space 14. Thus, the interior of the retrieving unit 40 remains sealed from the outside world except for communication with the accommodating space 14 via the feed port and the retrieving port 44.

[0055] In the above embodiment, the portion of the top plate 21 of the base 20 that is used to form the recessed portion can be regarded as an outer shell that accommodates the material-retrieving unit 40. As an alternative embodiment, the material-retrieving unit 40 may not be provided in the base 20, and a separate component may be used to form an outer shell having a cylindrical recessed portion. For example, the turntable 42 may be provided on the separate component, and the outer shell may be sealedly connected to the bottom of the storage bin 10 in a manner that the discharge port 15 is connected to the cylindrical recessed portion. In other words, the outer shell is snapped onto the bottom of the storage bin 10. In this way, the above-mentioned cover plate can be omitted, and the storage bin 10 and the material-retrieving unit 40 are provided with an integrated structure.

[0056] Sealing unit

[0057] From the above, it can be seen that the accommodating space 14 can be connected to the outside through the discharge port 15, the recessed portion and the material taking port 44. In order to ensure the sealing effect of the accommodating space 14, as shown in FIG. Figure 2 As shown, the rice storage device 1 further includes a sealing unit 50. Figures 4 to 7 The sealing unit 50 includes a sealing plate 51 for sealing the material taking port 44. In addition, the sealing plate 51 can be in a sealing position (such as Figure 4 and Figure 6 As shown) and the opening position (as shown) of the opening 44 (ie, the opening 44 can be communicated with the outside) Figure 7 Move between the

[0058] Thus, when food is needed, the sealing plate 51 can be controlled to move to the position as shown in FIG. Figure 7 The open position shown in FIG. 4 makes it possible to take out the food taken out of the storage space 14 by the taking-out unit 40 to the outside of the rice storage device 1 through the taking-out opening 44. When the food is not needed, the sealing plate 51 can be controlled to move to the position shown in FIG. Figure 4 and Figure 6The sealing position shown prevents the accommodating space 14 from communicating with the outside through the material removal port 44 , thereby maintaining a good sealing performance to facilitate maintaining the vacuum degree.

[0059] According to the present invention, the sealing plate 51 is constructed to move between the sealing position and the open position in a manner that is flipped around a flip axis (similar to the way of opening a door in daily life). This arrangement allows the sealing plate 51 to have little or no frictional contact with other parts during movement, thereby avoiding displacement or wear of the sealing surface caused by frictional contact between the sealing plate 51 and other parts, allowing the sealing plate 51 to maintain good sealing performance for a long time. In addition, the sealing plate 51 is buckled toward the feeding port 44 when sealing the feeding port 44. In this way, under the premise that the flip axis is determined, it can be ensured that the sealing plate 51 maintains the same relative position with the feeding port 44 each time it moves to the sealing position, avoiding the occurrence of loose sealing.

[0060] Refer again Figure 5 According to this embodiment, the sealing plate 51 includes two parts: a mounting plate 53 and a sealing gasket 52. Among them, the mounting plate 53 can be made of a hard plastic material to have good supporting performance. The sealing gasket 52 can be made of a soft rubber material to have good sealing performance. The sealing gasket 52 and the mounting plate 53 are each separately manufactured and assembled into a whole. However, it can be understood that the sealing gasket 52 can also be integrally formed with the mounting plate 53 into an integral component by a method such as secondary injection molding. Alternatively, the sealing plate 51 can also be a separate component made entirely of a material with good sealing performance, such as a sealing soft rubber.

[0061] The sealing plate 51 is mounted below the discharging opening 44 via a rotating shaft 54. The rotating shaft 54 ​​extends generally transversely and defines the rotation axis of the sealing plate 51. This arrangement prevents the sealing plate 51 from interfering with the rotation of the turntable 42 of the discharging unit 40. Furthermore, the weight of the sealing plate 51 itself can be used to provide a portion of the driving force for opening the sealing plate 51.

[0062] Continue to refer Figure 5 The sealing unit 50 further includes a sliding link 55 and a driving member 56 for driving the sealing plate 51 to flip and move between the sealing position and the open position.

[0063] Specifically, the sealing plate 51 is provided with a first slide groove 531 on the side facing away from the material discharge port 44. The first slide groove 531 extends roughly in a direction perpendicular to the flip axis (that is, the rotating shaft 54) and has a transverse opening. The sliding link 55 is connected to the driving member 56 and is configured to be able to reciprocate in a transverse direction perpendicular to the flip axis under the drive of the driving member 56. The sliding link 55 includes a main body 551 and a sliding shaft 552. The sliding shaft 552 extends roughly parallel to the flip axis of the sealing plate 51 and extends into the first slide groove 531 from the transverse opening. That is, the sliding shaft 552 is roughly perpendicular to the first slide groove 531 and can slide in the first slide groove 531 with the reciprocating movement of the sliding link 55 to approach or move away from the flip axis.

[0064] Preferably, if Figure 4 and Figure 5 As shown, the first chute 531 may include two, spaced apart along the flip axis. The sliding link 55 is located between the two first chute 531, and the sliding shafts 552 extend in opposite directions to extend into the two different first chute 531. This arrangement helps maintain the connection between the first chute 531 and the sliding shaft 552, preventing them from becoming loose.

[0065] like Figure 7 As shown, the sealing plate 51 is in the open position. Figure 6 In the sealing position shown, the sliding link 55 can be driven to move laterally, thereby driving the sliding shaft 552 to move within the first chute 531 in a direction away from the tilt axis (i.e., the rotation axis 54). The sliding shaft 552 applies a thrust to the sealing plate 51. The thrust is applied at a short distance from the tilt axis, thus generating a torque around the tilt axis that causes the sealing plate 51 to tilt upward. Under the action of this torque, the sealing plate 51 moves toward the material outlet 44 to the sealing position.

[0066] Conversely, when it is desired to remove the sealing plate 51 from the Figure 6 The seal position shown is moved to Figure 7 When in the open position shown, the sliding link 55 can be moved in the opposite direction to that described above, driving the sliding shaft 552 to move in the first chute 531 toward the flip axis. As the sliding link 55 moves, the sealing plate 51 generates a downward torque about the flip axis due to the dual effects of its own weight and the force of the sliding link 55, thereby moving the sealing plate 51 toward the open position away from the material discharge port 44.

[0067] In this embodiment, the driving member 56 is configured as an electric motor, which is connected to the sliding link 55 via a rotating connecting rod 57 to drive the sliding link 55 to reciprocate in the horizontal direction. Specifically, the drive shaft 561 of the electric motor is arranged vertically. The rotating connecting rod 57 includes a transverse rod 571 and a vertical rod 572. The transverse rod 572 is connected to the drive shaft 561 and rotates under the drive shaft 561. The vertical rod 572 is arranged on the transverse rod 572 eccentrically with respect to the drive shaft 561. As a result, the rotating connecting rod 57 is essentially configured as a crank structure.

[0068] Furthermore, the sliding link 55 also includes a second chute 553. The second chute 553 extends in a horizontal direction different from the moving direction of the sliding link 55 and has a vertical opening. The vertical rod 572 of the rotating link 57 extends into the second chute 553 from the vertical opening and is able to slide relative to the second chute 553. In this embodiment, the extension direction of the second chute 553 is perpendicular to the moving direction of the sliding link 55. However, it is understood that the extension direction of the second chute 553 can also form an angle other than zero degrees and vertical with the moving direction of the sliding link 55. In addition, the main body 551 of the sliding link 55 is also movably mounted by a mounting hoop 24. The mounting hoop 24 is used to limit the moving direction of the sliding link 55.

[0069] According to the above structure, when the drive shaft 561 of the driving member 56 rotates, the distance between the vertical rod 572 of the rotating link 57 and the drive shaft 561 changes periodically in the moving direction of the sliding link 55 defined by the mounting hoop 24. As a result, the vertical rod 572 slides along the second sliding groove 553, causing the entire position of the sliding link 55 to change periodically in its moving direction, thereby achieving reciprocating movement of the sliding link 55 and driving the sealing plate 51 to move between the sealing position and the open position.

[0070] In other words, the driving member 56 , the rotating connecting rod 57 and the sliding connecting rod 55 are interconnected to form a crank slider mechanism to convert the rotational motion of the driving member 56 into the linear reciprocating motion of the sliding connecting rod 55 .

[0071] However, because the rotational motion of the driver 56 is periodic, it is difficult to determine the position of the sealing plate 51 based on the motion of the driver 56 itself. This is detrimental to the control of the sealing unit 50. Therefore, although not shown in the accompanying drawings, it is understood that the sealing unit 50 may further include a detection member. This detection member is configured to generate a position detection signal when the sealing plate 51 moves to the sealing position and the open position, respectively. In this case, the position of the sealing plate 51 can be determined based on the position detection signal, and the operation of the driver 56 can be controlled accordingly.

[0072] For example, the detection member may include two micro switches, which trigger corresponding micro switches when the sealing plate 51 moves to the sealing position and the open position, respectively. The change in state of the corresponding micro switch indicates that the sealing plate 51 has moved into position, and the driving member 56 can be controlled to stop or continue operation as needed.

[0073] Of course, the detection element can also be constructed in other forms, such as a photoelectric switch including a light emitter and a light receiver. When the sealing plate 51 moves into place, it blocks the light signal between the light emitter and the light receiver, and the state change generated by the light receiver indicates that the sealing plate 51 has moved into place.

[0074] Furthermore, the rice storage device 1 may further include a control unit 70. The control unit 70 may include a control circuit board, which is electrically connected to the driving member 56 and the detection member, respectively, and is configured to control the operation of the driving member 56 according to the in-place signal sent by the detection member to achieve automatic control.

[0075] Furthermore, it will be appreciated that, in other embodiments not shown in the accompanying drawings, the opening and closing of the sealing plate 51 can be controlled by designing the stroke of the sliding link 55. For example, the stroke of the sliding link 55 can be designed so that when the sliding link 55 drives the sliding shaft 552 to move in a direction away from the flip axis to a stop point in the sliding link 55's movement direction, the sealing plate 51 moves to the sealed position, and when the sliding link 55 drives the sliding shaft 552 to move in a direction close to the flip axis to a stop point in the sliding link 55's movement direction, the sealing plate 51 moves to the open position. In this way, precise control of the opening and closing of the sealing plate 51 can be achieved through a physical structure.

[0076] In such an embodiment, the driving member 56 can be configured as an electromagnet. The sliding link 55 can be connected to the movable core of the electromagnet. The movable core of the electromagnet is capable of reciprocating and has a predetermined stroke, thus meeting the above requirements. Since the movable core of the electromagnet moves in the same manner as the sliding link 55, the above-mentioned detection member and the mounting hoop can be omitted.

[0077] In addition, the sealing unit of the rice storage device according to the present invention can also be configured such that a driving member directly acts on the rotating shaft to drive the sealing plate to move between the sealed position and the open position. For example, the driving member can be an electric motor, the drive shaft of which can be directly connected to the rotating shaft of the sealing member and directly apply the rotational driving force to the rotating shaft to drive the rotating shaft. This can omit intermediate structures such as sliding connecting rods for transmitting driving force.

[0078] It is understood that in this embodiment, there is also the problem of being unable to determine the position of the sealing member. Therefore, the above-mentioned detection member and control unit can be applied in this embodiment to achieve precise control.

[0079] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article can mean that one component is directly attached to another component, or that one component is attached to another component through an intermediate component. Features described in this article in one embodiment can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0080] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Those skilled in the art will appreciate that various variations and modifications may be made based on the teachings of the present invention, and such variations and modifications fall within the scope of protection claimed in the present invention.

Claims

1. A rice storage device, characterized in that: The rice storage device comprises: A accommodating unit, the accommodating unit having an accommodating space (14), the bottom of the accommodating space (14) having a discharge port (15); A material taking unit (40), the material taking unit (40) is arranged below the material discharge port (15), and the material taking unit (40) comprises: a feed opening (44); and a material taking cavity (43), the material taking cavity (43) being movable between a first position communicating with the accommodating space (14) and a second position communicating with the material taking opening (44), the material taking opening (44) being located below the material taking cavity (43); A sealing unit (50), comprising a sealing plate (51) for sealing the material taking opening, wherein the sealing plate (51) is movable between a sealing position for sealing the material taking opening (44) and an opening position for opening the material taking opening (44) in a manner of flipping about a flip axis; and a decompression unit (30), the decompression unit (30) being in communication with the accommodating space (14) and being used to reduce the pressure in the accommodating space (14) to be lower than a predetermined pressure, The sealing plate (51) is flippably arranged below the material taking port via a transversely arranged rotating shaft (54), and the rotating shaft (54) defines the flipping axis. A first chute (531) is provided on a side of the sealing plate (51) facing away from the material taking port (44), wherein the first chute (531) extends in a direction perpendicular to the flip axis and has a transverse opening; The sealing unit (50) further includes a sliding link (55) and a driving member (56), wherein the sliding link (55) has a sliding shaft (552) parallel to the flip axis, and the sliding shaft (552) extends from the transverse opening into the first slide groove (531) and is movable relative to the first slide groove (531) along the extension direction of the first slide groove (531), and the driving member (56) is used to drive the sliding link (55) to reciprocate along the transverse direction perpendicular to the flip axis.

2. The rice storage device according to claim 1, wherein The first sliding grooves (531) include two and are spaced apart along the direction of the flip axis. The sliding connecting rod (55) is arranged between the two first sliding grooves (531). The sliding shaft (552) extends into the two first sliding grooves (531) in opposite directions.

3. The rice storage device according to claim 1, wherein The driving member is an electromagnet, and the sliding link is connected to the movable iron core of the electromagnet.

4. The rice storage device according to claim 1, wherein The driving member (56) is an electric motor, the driving shaft (561) of the electric motor is vertically arranged, and the sliding link (55) further has a second sliding groove (553), the second sliding groove (553) extends along a transverse direction different from the reciprocating movement direction of the sliding link (55) and has a vertical opening; The sealing unit (50) further includes a rotating connecting rod (57), wherein the rotating connecting rod (57) includes a transverse rod (571) and a vertical rod (572), wherein the transverse rod (571) is connected to the drive shaft (561) of the motor, and the vertical rod (572) deviates from the drive shaft (561) and extends from the vertical opening into the second slide groove (553), and the vertical rod (572) is capable of moving relative to the second slide groove (553) along the extension direction of the second slide groove (553).

5. The rice storage device according to claim 4, wherein The sealing unit (50) further comprises a detection member, which is used to send a position arrival signal when the sealing plate (51) moves to the sealing position and / or the opening position.

6. The rice storage device according to claim 5, characterized in that The rice storage device further comprises a control unit (70), wherein the control unit (70) is electrically connected to the detection member and the driving member (56) respectively, and is configured to control the driving member (56) to operate according to the in-position signal.

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