WO2020062921A1 - 物料存储装置及烹饪器具 - Google Patents

物料存储装置及烹饪器具 Download PDF

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Publication number
WO2020062921A1
WO2020062921A1 PCT/CN2019/090363 CN2019090363W WO2020062921A1 WO 2020062921 A1 WO2020062921 A1 WO 2020062921A1 CN 2019090363 W CN2019090363 W CN 2019090363W WO 2020062921 A1 WO2020062921 A1 WO 2020062921A1
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WIPO (PCT)
Prior art keywords
screw
gap
pushing
storage box
passing section
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PCT/CN2019/090363
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English (en)
French (fr)
Inventor
陈飞帆
刘丰收
周忠宝
何柏锋
杨保民
瞿月红
Original Assignee
佛山市顺德区美的电热电器制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201821586750.1U external-priority patent/CN209107023U/zh
Priority claimed from CN201821615677.6U external-priority patent/CN209202860U/zh
Application filed by 佛山市顺德区美的电热电器制造有限公司 filed Critical 佛山市顺德区美的电热电器制造有限公司
Priority to JP2020568426A priority Critical patent/JP7126571B2/ja
Publication of WO2020062921A1 publication Critical patent/WO2020062921A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J47/00—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread
    • A47J47/01—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread with dispensing devices

Definitions

  • the present application relates to the technical field of kitchen appliances, and in particular, to a material storage device and a cooking appliance including the material storage device.
  • some materials storage devices are equipped with a push screw at the bottom of the storage box to increase the discharge speed, and push the material at the edge of the storage box to the discharge port to prevent the material at the edge from being damaged for a long time. To renew and moldy.
  • this also results in different feeding speeds in various parts of the storage box, poor uniformity of the feeding, and the phenomenon of uneven materials, which makes it impossible to accurately judge the real-time material amount in the storage box through the sensor.
  • an object of the present application is to provide a material storage device.
  • Another object of the present application is to provide a cooking appliance including the aforementioned material storage device.
  • the technical solution of the first aspect of the present application provides a material storage device, including: a storage box, a bottom of which is provided with a discharge port for outputting materials; a push screw is located at the bottom of the storage box And the discharge part is adjacent to the discharge port, and can push the material to the discharge port along its axial direction during rotation; an anti-blocking cover is installed in the storage box, and the cover is arranged in the Above the pushing screw, and between the anti-blocking cover and the inner wall surface of the storage box, a passing gap for passing the material is defined; wherein, along the feeding direction of the pushing screw, the passing screw The portion of the gap corresponding to the pushing screw includes a first gap passing section and a second gap passing section connected at one end to the first gap passing section, and the width of the first gap passing section is smaller than that The width of the second gap passing section is described.
  • the material storage device provided by the technical solution of the first aspect of the present application, by providing an anti-blocking cover, utilizes a passing gap between the anti-blocking cover and the inner wall surface of the storage box to filter large particulate materials, thereby preventing large particles.
  • the misfeeding of grain causes the feeding pipe to be blocked or jammed; at the same time, by properly setting the width of the feeding gap, the feeding amount of each part in the storage box can be adjusted, and the feeding speed of each part of the storage box can be controlled.
  • the feeding speed of each part is made uniform, so that the material in the storage box tends to be flat, thereby improving the accuracy of detecting the real-time material amount in the storage box by the sensor.
  • the width of the gap in each part affects the The lower the amount of material, the larger the width, the more the material at this location, and the faster the material speed. Conversely, the smaller the width, the less material at this location, and the smaller the material speed.
  • the push screw works, it pushes the material to the discharge port along its axis, that is, the material passing through the first gap passing section will be moved to the second gap passing section and then discharged through the discharge port.
  • the material at the first gap passing section can only be replenished by the material falling above it, and the material at the second gap passing section will be supplemented by the material transported by the first gap passing section horizontally. Therefore, in the gap When the widths are the same, the feeding speed at the position where the first gap passing section is higher than that at the position where the second gap passing section results in uneven feeding and uneven material in the area above the pushing screw.
  • making the width of the first gap passing section smaller than the width of the second gap passing section can appropriately reduce the amount of material placed at the position of the first gap passing section, thereby further reducing the
  • the blanking speed is equal to the blanking speed at the position of the second gap passing section, which effectively improves the uniformity of the blanking in the area above the pushing screw, which is conducive to the accurate determination of the real-time material amount in the bin by the sensor.
  • the material storage device in the above technical solution provided in the present application may also have the following additional technical features:
  • the material storage device further includes: a conveying impeller, which is disposed at the bottom of the storage box and corresponds to the discharge port, and is configured to convey the upper material downward to the discharge port.
  • a conveying impeller which is disposed at the bottom of the storage box and corresponds to the discharge port, and is configured to convey the upper material downward to the discharge port.
  • the anti-blocking cover is also arranged above the conveying impeller, and a portion corresponding to the conveying gap and the conveying impeller is formed as a third clearance material passing section, and the third The gap passing section is connected to the other end of the second gap passing section.
  • the material storage device also includes a conveying impeller.
  • the conveying impeller can transfer the material above it to the bottom through the rotation of the blade, and then discharge through the discharge port, thereby realizing the vertical discharge of the storage box, compared with the structure of a separate push screw.
  • the conveying efficiency is higher, and the material conveying amount can be accurately controlled by the screw rotation speed and the number of rotations; and the conveying impeller is located directly above the discharge port, and the anti-blocking cover is also arranged above the conveying impeller,
  • a third gap passing section is defined between the inner wall of the box, which can promote the output of the material near the top of the discharge port, thereby further alleviating the phenomenon of material bulging in the area above the discharge port of the storage box, and further improving the uniformity of feeding.
  • the feeding gap is defined between two inner wall surfaces of the anti-blocking cover and the storage box, and the third gap of the two feeding gaps is used for feeding.
  • the sections are respectively referred to as the pushing gap passing section and the discharging gap passing section, and at least part of the material at the pushing gap passing section can be rotated and pushed to the discharging gap when the conveying impeller rotates. It is discharged at the material section and through the discharge port; wherein the width of the pushing gap passing section is smaller than the width of the discharging gap passing section.
  • the blocking gap is defined between the two inner wall surfaces of the anti-blocking cover and the storage box respectively, so that the material can be transported from the two passing gaps to the lower side of the blocking block at the same time, thereby effectively improving the feeding speed.
  • the third gap passing section of the two passing gaps is respectively referred to as the pushing gap passing section and the discharging gap passing section.
  • the material replenishment source of the material section is more from the material in the material passing section of the pushing gap. Therefore, under the condition of the same gap width, the feeding speed of the position of the material passing section of the pushing gap will be faster than that of the material passing section of the gap. The cutting speed at the position leads to uneven cutting and uneven material in the area above the discharge opening.
  • making the width of the pushing gap clearance section smaller than the width of the blanking gap passing section can appropriately reduce the amount of material at the position of the pushing gap clearance section, thereby further reducing the
  • the blanking speed is equal to the blanking speed at the position where the blanking gap passes through the section, which effectively improves the uniformity of blanking in the area above the discharge port, further improves the flatness of the material in the storage box, and further improves the judgment by the sensor. Accuracy of real-time material quantity in storage bins.
  • the specific positions of the push gap clearance and the blank clearance clearance are determined by the rotation direction of the conveying impeller. Regardless of whether the conveying impeller rotates clockwise or counterclockwise, the relationship between the pushing gap clearance section and the blanking gap clearance section is: the material above the pushing clearance gap passing section will fall into the recess between the rotating blades of the conveying impeller. Inside the tank, then rotate upwards with the conveying impeller to reach the material clearance section and then automatically discharge the discharge port under the action of gravity.
  • the width of the pushing gap passing section is smaller than the width of the second gap passing section; and / or, the width of the pushing gap passing section is equal to the first gap passing section.
  • the width of the segment; and / or, the width of the blanking gap passing segment is equal to the width of the second gap passing segment.
  • the material in the pushing gap passing section can be rotated and pushed to the blanking gap passing section, and can also be directly discharged through the discharge port. Therefore, in the case of the same gap width
  • the material falling speed at the pushing gap passing section will be faster than the second gap passing section, so that the width of the pushing gap passing section is smaller than the width of the second gap passing section, which can make the second gap passing section locate
  • the feeding speed at the position tends to be equal to the feeding speed at the position where the pushing gap passes through the feeding section, thereby further improving the uniformity of feeding at each part of the storage box, and further improving the flatness of the material in the storage box.
  • the width of the pushing gap clearance section is equal to the width of the first gap crossing section. Because the width of the first gap crossing section is smaller than the width of the second gap crossing section, the width of the pushing gap clearance section is also smaller than the second
  • the width of the gap passing section is conducive to further improving the uniformity of the feeding of various parts of the storage box, and further improves the flatness of the material in the storage box; at the same time, the structure of the product is more regular, which is convenient for processing and forming.
  • the width of the pushing gap of the pushing gap may not be equal to the width of the first gap passing zone, and it can be adjusted as needed in the actual production process.
  • the material at the blanking gap passing section can be supplemented by the material at the push gap passing section and can be quickly discharged through the discharge port. Therefore, the gap width is equal.
  • the material falling speed at the feeding gap passing section is not much different from the material falling speed at the second gap passing section, so the width of the feeding gap passing section is equal to the width of the second gap passing section.
  • the feeding speed at the position of the second gap passing section can be made substantially equal to the feeding speed at the position of the feeding gap passing section, thereby further improving the uniformity of the feeding of each part of the storage box, and further improving the interior of the storage box.
  • the flatness of the material; and the width of the gap passing section is equal to the width of the second gap passing section, which makes the structure of the product more regular, which is convenient for processing and forming.
  • the width of the blanking gap passing section may not be equal to the width of the second gap passing section, and it can be adjusted as needed in the actual production process.
  • the first gap passing section is connected with the second gap passing section through a first transition gap passing section, and the width of the first transition gap passing section is pushed along the pushing
  • the feeding direction of the screw gradually increases; and / or, the first gap passing section is a constant-width structure; and / or, the second gap passing section is a constant-width structure; and / or, the feeding
  • the width of the gap is in the range of 5mm-10mm; and / or, the bottom of the storage box is partially recessed downward to form a feed slot, and the discharge port is opened at the bottom of the feed slot, on both sides of the feed slot
  • the part is configured as a guide wall inclinedly transitioning from the side wall of the storage box to the position of the feeding trough, and the passing gap is defined between the anti-blocking cover and the guide wall.
  • the first gap material passing section and the second gap material passing section are connected by a first transition gap material passing section, that is, a first transition gap material passing section is also provided between the first gap material passing section and the second gap material passing section.
  • a first transition gap material passing section gradually increases along the feeding direction of the pushing screw, thereby playing a good transition role, facilitating the stable and uniform fall of the materials in various parts under the action of gravity, and also facilitating further improvement.
  • the uniformity of the feeding in each part of the storage box further improves the flatness of the material in the storage box.
  • the second gap passing section and the pushing gap passing section are connected through a second transition gap passing section, that is, a second transition gap is provided between the second gap passing section and the pushing gap passing section.
  • the material passing section, and the width of the material passing section of the second transition gap gradually decreases along the feeding direction of the pushing screw, which also plays a good transition role, so that the material at each part can fall stably and uniformly under the action of gravity. Conducive to further improve the uniformity of the material in the storage box, and further improve the flatness of the material in the storage box.
  • the first gap passing section is a constant-width structure, which makes the product structure more regular, convenient for processing and molding, and beautiful in appearance.
  • the second gap passing section has a uniform width structure, which makes the product structure more regular, convenient for processing and molding, and beautiful in appearance.
  • the width of the feeding gap is not limited to the above range, and can be adjusted according to needs in the actual production process.
  • the use of the diversion effect of the deflector wall can promote the convergence of the material to the feeding trough to improve the driving efficiency of the material by the pushing screw; and the vibration of the motor driving the screw rotation can promote the material to slide along the diversion wall to the feeding trough.
  • the cross section of the feeding groove is arc-shaped, and the pushing screw is arranged concentrically with the feeding groove (that is, the central axis of the pushing screw is in line with the central axis of the cross section of the feeding groove), which makes the gap between the pushing screw and the groove wall of the feeding groove.
  • the distance is relatively small and the gap remains uniform up and down, and the higher it is, the steeper the groove wall of the feeding trough (that is, the greater the slope of the groove wall of the feeding trough), which is very conducive to the automatic sliding of the upper material in the feeding trough.
  • the pushing screw is arranged concentrically with the feeding groove (that is, the central axis of the pushing screw is in line with the central axis of the cross section of the feeding groove), which makes the gap between the pushing screw and the groove wall of the feeding groove.
  • the distance is relatively small and the gap remains uniform up and down, and the higher it is, the steeper the groove wall of the feeding trough (that is, the greater the slope of
  • the inner wall surface of the storage box is a straight surface, and the edge of the anti-blocking cover close to the inner wall surface of the storage box is configured to be non-linear, so that the anti-blocking cover and the Non-equal width of the passing gap is formed between the inner wall surfaces of the storage box.
  • the size of the anti-blocking cover is relatively small, so by improving the shape of the anti-blocking cover, the edge of the inner wall surface close to the storage box is configured as a non-linear shape, so that it and the storage box are non-linear.
  • a non-equal-width passing gap is formed between the inner wall surfaces of the substrate, which is relatively easy to implement and is suitable for popularization.
  • the shape of the storage box can also be improved, or the shapes of the storage box and the anti-blocking cover can be improved at the same time to form a non-equal width passing gap. Since the above technical solution can also achieve the purpose of the present application, It does not deviate from the design idea and purpose of this application, so it should all be within the protection scope of this application.
  • an edge of the anti-blocking cover near the inner wall surface of the storage box is configured as a polygonal line.
  • the edge of the anti-blocking cover close to the inner wall surface of the storage box is configured as a fold line, and by properly arranging the length and angle of the fold line, the dimensions of the gap width and length of each gap passing section can be easily adjusted;
  • the linear structure is easier to manufacture than the curved structure.
  • the number of the pushing screws is two, the two pushing screws are coaxially connected and the feeding direction is opposite, and the discharge port is located between the two pushing screws, and one of them is One end of the pushing screw is connected to a driving device, so that the two pushing screws can rotate synchronously and push materials to the discharge port at the same time.
  • the number of push screws is two, the two push screws are coaxially connected and the feeding direction is opposite, and the discharge port is located between the two push screws, thereby forming a two-way screw discharge system, achieving two-way screw feeding, Good transportation effect; and two push screws need only one set of driving device (such as motor + gear transmission mechanism) to achieve synchronous rotation, eliminating a set of driving device, effectively simplifying the product structure and saving production costs.
  • driving device such as motor + gear transmission mechanism
  • the ratio of the length of the first gap passing section to the total length of the passing gap is in the range of 0.1-0.3; and / or, the length of the second gap passing section is The ratio of the total length of the passing gap is in the range of 0.1-0.3.
  • the ratio of the length of the first gap passing section to the total length of the passing gap (that is, the total length of the anti-blocking cover) is limited to the range of 0.1-0.3, which ensures that the first gap passing section and the second gap passing section Both the section and the third gap passing section have relatively appropriate lengths to effectively control the feeding speed and improve the flatness of the material.
  • the ratio of the length of the first gap passing section to the total length of the passing gap is not limited to the above range, and can be adjusted as needed in the actual production process.
  • the ratio of the length of the second gap passing section to the total length of the passing gap (that is, the total length of the anti-blocking cover) is limited to the range of 0.1-0.3, which ensures that the first gap passing section and the second gap passing section Both the section and the third gap passing section have relatively appropriate lengths to effectively control the feeding speed and improve the flatness of the material.
  • the ratio of the length of the first gap passing section to the total length of the passing gap is not limited to the above range, and can be adjusted as needed in the actual production process.
  • the material storage device By improving the structure of the pushing screw, the material storage device provided by this technical solution makes the volume of the spiral groove gradually decrease from the discharging position to the direction away from the discharging position, that is, based on the direction of the pushing screw to push the material, The volume of the spiral groove gradually decreases from downstream to upstream, and the amount of material that can be accommodated and pushed by the spiral groove gradually increases from upstream to downstream. Therefore, the amount of material pushed by the upstream spiral groove is less than the actual amount of material that can be accommodated by the downstream spiral groove. The material near the upper part of the spiral groove will automatically fall into the spiral groove to fill the shortage.
  • the material pushed by the screw to the discharge port is not only the material near the inner wall area of the storage box, but also the material in the middle area of the storage box.
  • uniform feeding is achieved, the material in the rice box is maintained at a level, the material bulging phenomenon is effectively improved, and the accuracy of the detection device for judging the real-time material amount in the storage box is improved.
  • the volume of the spiral groove gradually increases along the feeding direction of the pushing screw, the material in the storage box needs to be replenished into the pushing screw along the feeding direction, which can gradually increase the material mass flow rate in the feeding direction of the pushing screw, and then As a result, the height of the rice grains is reduced uniformly, and the consistency of the material height is ensured.
  • V and L can be adjusted according to the specific structure and specific use of the product, and can be a linear function, a quadratic function, a cubic function, a quartic function, etc., which are not limited here.
  • the depth of the spiral groove of the pushing screw gradually decreases, and the pitch of the screw of the pushing screw remains unchanged, that is, the spiral groove of the pushing screw is based on the direction of the material pushed by the pushing screw.
  • the depth gradually increases from upstream to downstream, and the pitch of the screw of the pushing screw remains unchanged from upstream to downstream.
  • This aspect makes the structure of the pushing screw relatively regular. Compared with conventional screws, only the depth of the spiral groove can be changed, which is convenient for processing and forming.
  • the volume of each spiral groove can be changed in a gradient, so that there is no big difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, thereby further improving the uniformity of the feeding.
  • the depth of the spiral groove of the pushing screw gradually increases from upstream to downstream, that is, as the distance L between the spiral groove and the discharge port decreases, the depth H of the spiral groove gradually increases, so H is negatively related to L; Because the volume of the spiral groove is equal to the equivalent cross-sectional area of the spiral groove multiplied by the thread pitch, when the thread pitch remains constant, the function of the spiral groove and the equivalent cross-sectional area of the spiral groove satisfy a first-order functional relationship; and The spiral groove has a circular shape, so the equivalent cross-sectional area of the spiral groove and the depth of the spiral groove satisfy a functional relationship, so the depth H of the spiral groove and the distance L between the spiral groove and the discharge port also satisfy a functional relationship.
  • the radius R2 of the screw shaft is also a more intuitive size feature of the push screw, it is also It is more convenient for the designer to quickly design the specific structure of the push screw according to the functional relationship; and because H is negatively correlated with L, R2 is positively correlated with L, that is, as L increases, R2 gradually increases.
  • the volume of the spiral groove is determined by the depth of the spiral groove and the pitch of the threads
  • the volume of the spiral groove can also be changed only by changing the pitch of the threads or changing the depth of the spiral groove and the pitch of the threads at the same time.
  • the purpose of the application is not deviated from the design idea and purpose of the application, and therefore should be within the protection scope of the application.
  • the spiral groove is a three-dimensional structure and has a certain length
  • the depth of a spiral groove along the axis of the pushing screw may not be exactly the same, there may be changes, and the depth of the spiral groove itself will not be too large.
  • the thread pitch remains unchanged, that is, the length of each spiral groove is the same, so the depth at the same part of each thread groove can be defined as the depth of the spiral groove (such as the depth at the upstream end of the screw groove, or downstream of the spiral groove). End depth or the depth in the middle of the spiral groove). In this way, it can relatively accurately ensure that the equivalent cross-sectional area of the spiral groove changes correspondingly with the distance from the discharge port, and can also reduce and reduce the difficulty of designing the push screw.
  • H and L satisfy a quadratic function relationship, which is more accurate and more conducive to uniform feeding. It can be understood that, because L> 0, H> 0, and L is negatively correlated with H, the constant a ⁇ 0, the constant c> 0, and the size of the constant b are not limited.
  • H and L a ⁇ H 3 + b ⁇ H 2 + c ⁇ H + d, that is: H and L satisfy a cubic function relationship, then H also changes nonlinearly with L, and also realizes the exact corresponding change of H and L, also Conducive to uniform feeding. It can be understood that, because L> 0, H> 0, and L is negatively correlated with H, and the image of the cubic function changes more, as long as the function has a monotonically decreasing part in the first quadrant of the rectangular coordinate system, As for the sizes of the constants a, b, c, and d, there are no specific restrictions.
  • H k ⁇ L + C, that is, L and H satisfy a linear function relationship, then H changes linearly with L, which makes the structure of the pushing screw more regular and convenient for processing and forming. It can be understood that since H> 0, L> 0, and H is negatively correlated with L, the constant k ⁇ 0 and the constant C> 0.
  • H a ⁇ L 2 + b ⁇ L + c, that is, if L and H satisfy a quadratic function relationship, then H varies nonlinearly with L.
  • V f (H).
  • the volume of the spiral groove and the equivalent cross-sectional area of the spiral groove satisfy a first-order functional relationship.
  • the equivalent cross-sectional area of the spiral groove and the square H 2 of the depth of the spiral groove satisfy a linear function relationship, so the square H 2 of the depth of the spiral groove and the distance L between the spiral groove and the discharge port satisfy a functional relationship.
  • H and L satisfy a quadratic function relationship, which is more accurate and more conducive to uniform feeding. It can be understood that, because H> 0, L> 0, and H is negatively correlated with L, the constant a ⁇ 0, the constant c> 0, and the size of the constant b are not limited.
  • H a ⁇ L 3 + b ⁇ L 2 + c ⁇ L + d, that is: H and L satisfy a cubic function relationship, then H also changes non-linearly with L, and also realizes the exact corresponding change of H and L, also Conducive to uniform feeding. It can be understood that, because L> 0, H> 0, and L is negatively correlated with H, and the image of the cubic function changes more, as long as the function has a monotonically decreasing part in the first quadrant of the rectangular coordinate system, As for the sizes of the constants a, b, c, and d, there are no specific restrictions.
  • V and L may satisfy the linear function relationship, cubic function relationship, quartic function relationship, etc., and The specific functional relationship may also be different. Therefore, the specific shape of the pushing screw is not limited to the above-mentioned functional relationship. In the actual production process, it can be reasonably designed according to the specific product, and the specific values of the constants in the above function can also be adjusted according to the specific product.
  • the screw depth of the push screw remains inconvenient, and the screw pitch gradually decreases, that is, based on the direction of the push screw to push the material, the screw pitch gradually decreases from downstream to upstream, and
  • the depth of the spiral groove is kept constant, which ensures that the volume of the spiral groove gradually increases from upstream to downstream, thereby achieving the purpose of uniform feeding.
  • the solution makes the structure of the pushing screw relatively regular, which facilitates processing and molding, and makes each spiral groove
  • the volume can be changed in a gradient, which will not cause too much difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, thereby further improving the uniformity of the feeding.
  • the screw pitch of the pushing screw gradually decreases from downstream to upstream, that is, as the distance L between the spiral groove and the discharge port increases, the screw pitch S gradually decreases, so S is negatively related to L;
  • the volume of the spiral groove is equal to the equivalent cross-sectional area of the spiral groove multiplied by the thread pitch, when the depth of the spiral groove remains constant, the equivalent cross-sectional area of the spiral groove remains unchanged, so the volume of the spiral groove It meets the first-order functional relationship with the screw pitch, so the screw pitch S and the distance L between the spiral groove and the discharge port also satisfy the functional relationship.
  • the thread spacing S is a more intuitive size feature of the push screw, which makes it easier for designers to quickly design the specific structure of the push screw according to the functional relationship to further shorten the design cycle. Further shorten the production cycle of the product.
  • S a ⁇ L 2 + b ⁇ L + c, that is: S and L satisfy a quadratic function relationship, then S changes non-linearly with L, and also realizes the exact corresponding change of S and L, which is also conducive to uniform feeding . It can be understood that, because L> 0, S> 0, and S is negatively correlated with L, the constant a ⁇ 0, the constant c> 0, and the size of the constant b are not limited.
  • the material storage device further includes: An impeller is provided at the bottom of the storage box and corresponds to the discharge port, and is used to convey the material above to the discharge port; and / or, the material storage device further includes: : The arc-shaped material conveying cavity is formed by the arc surface opening downward and the plane below, and the discharge port smoothly extends to the arc surface, so that the arc-shaped material conveying cavity passes the material discharge.
  • the port is in communication with the storage box.
  • the outer diameter of the thread remains unchanged, making the structure of the push screw more regular, convenient for processing and forming, and easy to install, reducing the shape requirements of the storage box and facilitating installation; and the distance between the push screw and the inner wall surface of the storage box It can be kept unchanged, thereby ensuring that the material feeding speed is basically uniform. Further, for the solution in which the pitch of the spiral groove is kept constant and the depth of the spiral groove is changed, it is only necessary to change the screw shaft diameter; for the solution in which the depth of the spiral groove is kept constant and the pitch of the screw groove is changed, only the thread is changed Location.
  • the material storage device also includes a conveying impeller.
  • the conveying impeller can transfer the material above it to the bottom through the rotation of the blade, and then discharge through the discharge port, thereby realizing the vertical discharge of the storage box, compared with the structure of a separate push screw.
  • the conveying efficiency is higher, and the material conveying quantity can be accurately controlled by the screw rotation speed and the number of rotations; and the conveying impeller is located directly above the discharge port, so that the material output near the discharge port can be promoted, thereby further alleviating the storage
  • the phenomenon of material bulging in the middle area of the bin further improves the uniformity of the feeding.
  • the conveying impeller can be coaxially connected with the pushing screw, so that the same driving device as the pushing screw can be used for linkage control. Of course, it can also be controlled separately from the pushing screw by using different driving devices.
  • the conveying impeller is sleeved on a connecting shaft between the first screw and the second screw.
  • the arc-shaped material conveying cavity is formed by the arc surface opening downward and the plane below.
  • the discharge opening provided at the bottom of the storage box smoothly extends to the arc surface, and is conveyed to the discharge opening by the push screw and the conveying impeller.
  • the material will be introduced into the arc-shaped material conveying cavity.
  • the force is introduced into the feeding pipe, and then discharged into the material cleaning device to perform the material cleaning operation.
  • the number of the pushing screws is one, and the discharge port is close to an edge portion of the storage box; or, the number of the pushing screws is multiple, and the number of the pushing screws is multiple. It is arranged radially outside the discharge port with the discharge port as a center; or, the pushing screw includes: a first screw, one end of which is connected to an inner wall of one side of the storage box, and the other end thereof is adjacent The discharge port is provided; a second screw is coaxially disposed with the first screw and is opposite to a direction in which the screw of the first screw is disposed, and one end thereof is connected to the other inner wall of the storage box, and The other end is disposed adjacent to the discharge port; the connecting shaft is correspondingly disposed above the discharge port, and is fixedly connected to the other end of the first screw and the other end of the second screw, respectively, so that the The first screw rotates in synchronization with the second screw.
  • the multiple push screws are arranged radially outside the discharge opening with the discharge opening as the center, the multiple push screws can simultaneously push the materials in multiple parts of the storage box, thereby significantly improving the feeding. speed.
  • the pushing screw is formed by the first screw, the connecting shaft, and the second screw being fixedly connected in order.
  • the area where the connecting shaft is located is the discharging part of the pushing screw, which is convenient for setting the discharging part of the pushing screw and the discharge opening of the storage box.
  • the feeding uniformity is further improved; and the first screw and the second screw are provided with reverse threads, so that the first screw and the second screw can be driven by the same driving device, and can be synchronized simultaneously during the rotation process.
  • the material at the outer end is pushed to the discharge port, which effectively saves motor usage, streamlines product components, and reduces product costs; and forms a two-way spiral discharge system, compared to the traditional rice bin using gravity to achieve material discharge through the slope , It can realize that there is no local residue of the materials in the storage box, thereby avoiding the problem of the deterioration of the remaining materials and the overall quality of the materials in the storage box. In addition, by using the push screw, the materials located at the bottom of the storage box are pushed.
  • the material is discharged to the discharge port, and the material with a longer storage time located at the bottom of the storage box can be preferentially discharged, such as Update the material to achieve material storage tank according to a time sequence, to improve the overall quality of the material feed reservoir tank.
  • the first screw, the second screw, and the connecting shaft can be produced by fixed assembly, or can be made by integral molding.
  • the material storage device further includes: a driving device correspondingly connected to the pushing screw for driving the pushing screw to rotate.
  • the driving device includes a motor, and an output shaft of the motor is coaxially connected with the pushing screw; or the driving device includes a motor and a gear transmission mechanism connected to the output shaft of the motor, The gear transmission mechanism is connected with the pushing screw.
  • the driving device includes a motor, and the output shaft of the motor is coaxially connected with the push screw, that is, the motor directly drives the push screw to rotate, the power transmission efficiency is high, and the number of required parts is small, which simplifies the product structure and helps save costs.
  • the driving device includes a motor and a gear transmission mechanism, and the gear transmission mechanism is connected to the push screw, that is, the motor indirectly drives the push screw to rotate through the gear transmission mechanism, and the gear transmission mechanism can achieve a speed increase effect, which is beneficial to reduce the energy consumption of the motor. And it is convenient to arrange the position of the motor reasonably according to the product structure.
  • the pushing screw includes the first screw, the second screw, and the connecting shaft in the foregoing technical solution
  • the motor or the gear transmission mechanism is connected to the first screw or the second screw; the number of the pushing screws is multiple In terms of the technical solution, the number of driving devices is also multiple, and each pushing screw is driven separately.
  • the technical solution of the second aspect of the present application provides a cooking appliance, comprising: a cooking main body; and the material storage device according to any one of the technical solutions of the first aspect, wherein a discharge port can communicate with an interior of the cooking main body. Connected in space.
  • the cooking appliance provided by the technical solution of the second aspect of the present application includes the material storage device described in any one of the technical solutions of the first aspect, and thus has all the beneficial effects of any of the technical solutions described above, and will not be repeated here. .
  • the internal space of the cooking body there are no specific restrictions, for example: it may be a cleaning cavity in the upper cover, and the material is sent into the cleaning cavity for cleaning; it may also be an inner pot, and the material is sent into the inner pot for cleaning or cooking.
  • the cooking appliance is a rice cooker.
  • a rice cooker it is not limited to a rice cooker, but may also be an electric pressure cooker, an electric stew pot, an electric steamer, an electric cooker, a soybean milk machine, and the like.
  • the technical solution of the second aspect of the present application provides a cooking appliance, comprising: a cooking main body; and the material storage device according to any one of the technical solutions of the first aspect, wherein a discharge port can communicate with an interior of the cooking main body. Connected in space.
  • the cooking appliance provided by the technical solution of the second aspect of the present application includes the material storage device described in any one of the technical solutions of the first aspect, and thus has all the beneficial effects of any of the technical solutions described above, and will not be repeated here. .
  • the internal space of the cooking body there are no specific restrictions, for example: it may be a cleaning cavity in the upper cover, and the material is sent into the cleaning cavity for cleaning; it may also be an inner pot, and the material is sent into the inner pot for cleaning or cooking.
  • a feeding mechanism is provided below the storage box, such as a transfer cavity connected to the discharge port and a transfer pipe connected to the transfer cavity.
  • the material in the storage box is first discharged into the transfer cavity, and then Driven by wind and other power to the internal space of the cooking body.
  • the cooking appliance is a rice cooker.
  • a rice cooker it is not limited to a rice cooker, but may also be an electric pressure cooker, an electric steamer, an electric cooker, a soybean milk machine, or the like.
  • FIG. 1 is a schematic perspective structural view of a material storage device according to some embodiments of the present application.
  • FIG. 2 is a schematic sectional structural view of the material storage device shown in FIG. 1 from a perspective;
  • FIG. 3 is a schematic cross-sectional view of the material storage device shown in FIG. 1 from another perspective;
  • FIG. 4 is a schematic structural view of a front view of the material storage device shown in FIG. 3;
  • FIG. 5 is a perspective structural diagram of an anti-blocking cover according to some embodiments of the present application.
  • FIG. 6 is a schematic diagram of the cooperation between the anti-blocking cover and the inner wall surface of the storage box shown in FIG. 5; FIG.
  • FIG. 7 is a schematic perspective structural diagram of a material storage device according to some embodiments of the present application.
  • FIG. 8 is a half-sectional structural diagram of the material storage device shown in FIG. 7; FIG.
  • FIG. 9 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application.
  • FIG. 10 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application
  • FIG. 11 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application
  • FIG. 12 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application
  • FIG. 13 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application
  • FIG. 14 is a schematic cross-sectional structure diagram of a pushing screw and a conveying impeller according to an embodiment of the present application.
  • the material storage device provided by the embodiment of the first aspect of the present application includes a storage box 10, a pushing screw 20, and an anti-blocking cover 30.
  • the bottom of the storage box 10 is provided with a discharge port 11 for outputting materials, as shown in FIG. 2 to FIG. 4;
  • the pushing screw 20 is located at the bottom of the storage box 10, and its discharge part is adjacent to the discharge port 11
  • the material can be pushed to the discharge port 11 along its axis during rotation;
  • the anti-blocking cover 30 is installed in the storage box 10 and is set above the pushing screw 20.
  • a blocking gap 50 is defined between the anti-blocking cover 30 and the inner wall surface of the storage box 10, as shown in FIG. 3 and FIG. 4.
  • the passing gap 50 and The corresponding part of the pushing screw 20 includes a first gap passing section 51 and a second gap passing section 52 connected at one end to the first gap passing section 51, and the width D0 of the first gap passing section 51 is smaller than the second gap
  • the width D1 of the passing section 52 is shown in FIG. 6.
  • the material storage device provided by the embodiment of the first aspect of the present application is provided with an anti-blocking cover 30, and uses a passing gap 50 between the anti-blocking cover 30 and the inner wall surface of the storage box 10 to filter large particles of material, thereby It can prevent the feeding pipe from being blocked due to large-scale grains from entering or jamming.
  • a passing gap 50 between the anti-blocking cover 30 and the inner wall surface of the storage box 10 to filter large particles of material, thereby It can prevent the feeding pipe from being blocked due to large-scale grains from entering or jamming.
  • the width of the passing gap 50 it is also possible to adjust the amount of material in the storage box 10 to control the storage box 10
  • the feeding speed of each part makes the feeding speed of each part tend to be the same, so that the material in the storage box 10 tends to be flat, thereby improving the accuracy of detecting the real-time material amount in the storage box 10 through the sensor. .
  • the feeding gap 50 is in various places.
  • the width affects the feeding amount of each part. The larger the width, the more feeding amount at this part, and the faster the feeding speed. On the contrary, the smaller the width, the smaller the feeding amount at this part, and the smaller the feeding speed.
  • the push screw 20 works, it pushes the material to the discharge port 11 along its axis, that is, the material passing through the first gap passing section 51 will be transferred to the second gap passing section 52 and then passed through the discharge.
  • the outlet 11 is discharged, so the material at the first gap passing section 51 can only be replenished by the material falling above it, and the material at the second gap passing section 52 will be transported laterally by the first gap passing section 51.
  • the material is replenished. Therefore, if the gap width is the same, the feeding speed at the position of the first gap passing section 51 will be higher than that at the position of the second gap passing section 52, resulting in the lower area of the pushing screw 20 Uneven material, uneven material. Therefore, making the width D0 of the first gap passing section 51 smaller than the width D1 of the second gap passing section 52 can appropriately reduce the amount of blanking at the position of the first gap passing section 51, thereby further passing the first gap.
  • the blanking speed at the position of section 51 and the blanking speed at the position of the second gap passing section 52 tend to be equal, which effectively improves the uniformity of blanking at the area above the pushing screw 20, which is conducive to the accurate judgment of the storage by the sensor.
  • the material storage device further includes: a conveying impeller 40 disposed at the bottom of the storage box 10 and corresponding to the discharge port 11 as shown in FIG. 2 to FIG. It is conveyed down to the discharge port 11; among them, the anti-blocking cover 30 is also arranged above the conveying impeller 40, and the part corresponding to the conveying gap 50 and the conveying impeller 40 is formed as the third clearance conveying section 53, the third The gap passing section 53 is connected to the other end of the second gap passing section 52, as shown in FIG. 6.
  • the material storage device also includes a conveying impeller 40.
  • the conveying impeller 40 can transfer the material above it to the lower part through the rotation of the blades, and then discharge through the discharge port 11, thereby realizing the vertical discharge of the storage box 10 and the separate setting of the pushing screw.
  • the conveying efficiency is higher, and the material conveying quantity can be accurately controlled by the screw rotation speed and the number of turns;
  • the conveying impeller 40 is located directly above the discharge port 11, and the anti-blocking cover 30 is also arranged on the conveying
  • a third clearance passing section 53 is defined above the impeller 40 and between the inner wall of the storage box 10 and the material passing section 53 so as to promote the output of the material near the discharge port 11 and further ease the discharge port 11 of the storage box 10
  • the phenomenon of material bulging in the upper area further improves the uniformity of feeding.
  • a clearance gap 50 is defined between the two inner wall surfaces of the anti-blocking cover 30 and the storage tank 10 respectively.
  • the third clearance passage sections 53 of the two clearance gaps 50 are respectively It is recorded as the pushing gap passing section and the blanking gap passing section, and at least part of the material at the pushing gap passing section can be rotated and pushed to the blanking gap passing section when the conveying impeller 40 rotates and through the discharge.
  • the outlet 11 is discharged; among them, the width D2 of the feeding gap passing section is smaller than the width D2 of the feeding gap passing section.
  • a blocking gap 50 is defined between the two inner wall surfaces of the anti-blocking cover 30 and the storage box 10 opposite to each other. Then, the material can be simultaneously conveyed from the two blocking gaps 50 to the lower of the anti-blocking cover 30, thereby effectively improving the bottom. Material speed.
  • the third gap passing section 53 of the two passing gaps 50 are respectively referred to as the push gap passing section and the blanking gap passing section. As the conveying impeller 40 rotates, it will discharge the material in the circumferential direction.
  • Pushing at port 11 that is, at least a part of the material at the material passing section of the pushing gap will be transported to the material passing section by the conveying impeller 40, and then discharged through the discharge port 11, so compared with the material pushing gap In the section, the material supply source of the material passing section of the feeding gap is more from the material at the material passing section of the pushing gap. Therefore, under the condition that the gap width is equal, the feeding speed of the position of the material passing section of the pushing gap will be greater than The cutting speed at the position where the cutting gap passes through the feeding section results in uneven feeding and uneven material in the area above the discharge port 11.
  • making the width D2 of the pushing gap clearance section smaller than the width of the blanking gap passing section D2 can appropriately reduce the amount of feeding at the position where the pushing gap clearance section is located, and then the position of the pushing gap passing section
  • the blanking speed at the location tends to be equal to the blanking speed at the position where the blanking gap passes through the section, effectively improving the uniformity of blanking in the area above the discharge port 11 and further improving the flatness of the material in the storage box 10, further The accuracy of judging the real-time material amount in the storage box 10 through the sensor is improved.
  • the specific positions of the push gap clearance section and the blank clearance clearance section are determined by the rotation direction of the conveying impeller 40. Regardless of whether the conveying impeller 40 rotates clockwise or counterclockwise, the relationship between the pushing gap clearance section and the blanking gap passing section is: the material above the pushing clearance gap passing section will fall between the rotating blades of the conveying impeller 40 Into the groove, and then rotate upward with the conveying impeller 40 to reach the blanking clearance passing section, and then automatically discharge the discharge port 11 under the effect of gravity.
  • width D2 of the pushing gap passing section is smaller than the width D1 of the second gap passing section 52.
  • the material in the pushing gap passing section can be rotated and pushed to the blanking gap passing section, and can also be directly discharged through the discharge port 11. Therefore, the gap width is equal.
  • the material falling speed at the pushing gap passing section will be faster than the second gap passing section 52, so that the width D2 of the pushing gap passing section is smaller than the width D1 of the second gap passing section 52, which can make the first
  • the feeding speed at the position of the second gap passing section 52 and the feeding speed at the position of the pushing gap passing section tend to be equal, thereby further improving the uniformity of the feeding of each part of the storage box 10 and further improving the storage box 10
  • the flatness of the material inside is equal.
  • the width D2 of the pushing gap passing section is equal to the width D0 of the first gap passing section 51.
  • the width D2 of the pushing gap passing section is equal to the width D0 of the first gap passing section 51. Since the width D0 of the first gap passing section 51 is smaller than the width D1 of the second gap passing section 52, the pushing gap passes the material. The width D2 of the section is also smaller than the width D1 of the second gap passing section 52, which is beneficial to further improve the uniformity of the feeding of each part of the storage box 10 and further improve the flatness of the material in the storage box 10; The structure is relatively regular, which is convenient for processing and forming. Of course, the width D2 of the pushing gap passing section may not be equal to the width D0 of the first gap passing section 51, and can be adjusted as needed in the actual production process.
  • the width D2 of the blanking gap passing section is equal to the width D1 of the second gap passing section 52.
  • the material at the blanking gap passing section is supplemented by the material at the push gap passing section and can be quickly discharged through the discharge port 11.
  • the material falling speed at the material passing section of the blanking gap is not much different from the material falling rate at the second material passing section 52. Therefore, the width D2 of the material passing section of the blanking gap is equal to that of the second gap.
  • the width D1 of the section 52 can make the feeding speed at the position of the second gap passing section 52 and the feeding speed at the position of the feeding gap passing section approximately equal, thereby further improving the uniform feeding of each part of the storage box 10 And further improve the flatness of the material in the storage box 10; and the width D2 of the blanking gap passing section is equal to the width D1 of the second gap passing section 52, which makes the structure of the product more regular and facilitates processing and molding.
  • the width D2 of the blanking gap passing section may not be equal to the width D1 of the second gap passing section 52, and can be adjusted as needed in the actual production process.
  • first gap passing section 51 and the second gap passing section 52 are connected through the first transition gap passing section 54.
  • the width of the first transition gap passing section 54 gradually increases along the feeding direction of the pushing screw 20. As shown in Figure 6.
  • the first gap passing section 51 and the second gap passing section 52 are connected through a first transition gap passing section 54, that is, a first gap passing section 51 and a second gap passing section 52 are also provided with a first The transition gap passing section 54, and the width of the first transition gap passing section 54 gradually increases along the feeding direction of the pushing screw 20, thereby playing a good transition role and facilitating the stable and uniform material in each part under the action of gravity
  • the ground drop is also conducive to further improving the uniformity of the feeding in each part of the storage box 10 and further improving the flatness of the material in the storage box 10.
  • the second gap passing section 52 and the pushing gap passing section are connected through the second transition gap passing section 55, as shown in FIG. 6, that is, the second gap passing section 52 and the pushing gap passing section
  • the width of the second transition gap passing section 55 gradually decreases along the feeding direction of the pushing screw 20, which also plays a good transition role and facilitates the material in various parts. It can fall stably and uniformly under the action of gravity, which is also conducive to further improving the uniformity of the feeding of various parts in the storage box 10 and further improving the flatness of the material in the storage box 10.
  • the first gap passing section 51 is a constant-width structure, as shown in FIG. 6.
  • the second gap passing section 52 is a constant-width structure, as shown in FIG. 6.
  • the first gap passing section 51 has a uniform width structure, which makes the product structure more regular, convenient for processing and molding, and beautiful in appearance.
  • the second gap passing section 52 has a uniform width structure, which makes the product structure more regular, convenient for processing and molding, and beautiful in appearance.
  • the width of the passing gap 50 is in a range of 5 mm-10 mm.
  • the width of the feeding gap 50 is not limited to the above-mentioned range, and can be adjusted as needed in the actual production process.
  • the difference from the first embodiment is that on the basis of the first embodiment, further, the bottom of the storage box 10 is partially recessed downward to form a feeding slot, and the discharge port 11 is opened at the bottom of the feeding slot, and on both sides of the feeding slot
  • the guide wall 12 is configured to be inclined to transition from the side wall of the storage box 10 to the position of the feed trough.
  • a blocking gap 50 is defined between the anti-blocking cover 30 and the guide wall 12, as shown in FIGS. 2 to 4. .
  • the use of the diversion effect of the deflector wall 12 can promote the convergence of the material to the feeding trough to improve the driving efficiency of the material by the pushing screw 20; and the vibration of the motor driving the screw rotation can promote the material to slide along the diversion wall 12 to the feeding trough. Shifting to play a synergistic effect on the driving of the material; and reduce the probability of the material remaining on the diversion wall 12, thereby avoiding the deterioration of the residual material and causing the overall quality of the material in the storage box 10 to decline.
  • the cross section of the feeding groove is arc-shaped, and the pushing screw 20 is arranged concentrically with the feeding groove (that is, the central axis of the pushing screw 20 and the central axis of the cross section of the feeding groove), which makes the pushing screw 20 and the groove of the feeding groove
  • the distance between the walls is relatively small and the gap remains uniform up and down, and the higher it is, the steeper the groove wall of the feed trough (that is, the greater the slope of the groove wall of the feed trough), which is very beneficial for the upper part of the feed trough.
  • the material automatically slides into the thread gap of the pushing screw 20.
  • the remaining amount of material in the storage box 10 is relatively small, most or even all of the materials in the feed tank can be brought into contact with the pushing screw 20 and then pushed to the pushing port, thereby significantly reducing the pushing screw.
  • the probability of material vacancies between the threads of 20 not only improves the energy consumption utilization rate, but also improves the reliability of the storage box 10 with a sufficient amount of uniform discharge, and further reduces that some materials in the storage box 10 cannot be updated in time. And the risk of mildew.
  • the inner wall surface of the storage box 10 is a straight surface, and the edge of the anti-blocking cover 30 near the inner wall surface of the storage box 10 is configured as a non-linear shape. As shown in FIG. 6, the anti-blocking cover 30 and the storage box 10 are formed. A non-equal-width passing gap 50 is formed between the inner wall surfaces of the inner wall surface.
  • the size of the anti-blocking cover 30 is relatively small. Therefore, by improving the shape of the anti-blocking cover 30, the edge of the anti-blocking cover 30 close to the inner wall surface of the storage box 10 is non-linear, so that A non-equal-width passing gap 50 is formed between the material and the inner wall surface of the storage box 10, which is relatively easy to implement and is suitable for popularization.
  • the shape of the storage box 10 can also be improved, or the shapes of the storage box 10 and the anti-blocking cover 30 can be improved at the same time to form a non-equal-width passing gap 50. Since the above embodiment can also implement the present invention The purpose of the application does not depart from the design ideas and purposes of the application, and therefore should be within the scope of protection of the application.
  • the edge of the anti-blocking cover 30 near the inner wall surface of the storage box 10 is configured as a polygonal line, as shown in FIGS. 5 and 6.
  • the edge of the anti-blocking cover 30 close to the inner wall surface of the storage box 10 is configured as a fold line, and by appropriately arranging the length and angle of the fold line, the gap width and length of each gap passing section can be easily adjusted; And the polygonal structure is easier to manufacture than the curved structure.
  • the number of the pushing screws 20 is two, the two pushing screws 20 are coaxially connected and the feeding directions are opposite, and the discharge port 11 is located on the two pushing screws As shown in FIG. 2, one end of one of the pushing screws 20 is connected to the driving device 60 so that the two pushing screws 20 can rotate synchronously and simultaneously push the materials to the discharge port 11.
  • two pushing screws 20 there are two pushing screws 20, the two pushing screws 20 are coaxially connected and the feeding direction is opposite, and the discharge port 11 is located between the two pushing screws 20, thereby forming a two-way screw discharge system and realizing two-way screw feeding , Has achieved a good transport effect; and two push screws 20 only need a set of driving device 60 (such as a motor + gear transmission mechanism) to achieve synchronous rotation, eliminating a set of driving device 60, effectively simplifying the product structure , Saving production costs.
  • driving device 60 such as a motor + gear transmission mechanism
  • the ratio of the length of the first gap passing section 51 to the total length of the passing gap 50 is in the range of 0.1-0.3.
  • the ratio of the length of the first gap passing section 51 to the total length of the passing gap 50 (that is, the total length of the anti-blocking cover 30) is limited to a range of 0.1-0.3, which ensures that the first gap passing section 51, the first The second gap passing section 52 and the third gap passing section 53 both have relatively appropriate lengths to effectively control the feeding speed and improve the material flatness effect.
  • the ratio of the length of the first gap passing section 51 to the total length of the passing gap 50 is not limited to the above range, and can be adjusted as needed in the actual production process.
  • the ratio of the length of the second gap passing section 52 to the total length of the passing gap 50 is in the range of 0.1-0.3.
  • the ratio of the length of the second gap passing section 52 to the total length of the passing gap 50 (that is, the total length of the anti-blocking cover 30) is limited to a range of 0.1-0.3, which ensures that the first gap passing section 51, the first The second gap passing section 52 and the third gap passing section 53 both have relatively appropriate lengths to effectively control the feeding speed and improve the material flatness effect.
  • the ratio of the length of the first gap passing section 51 to the total length of the passing gap 50 is not limited to the above range, and can be adjusted as needed in the actual production process.
  • the volume of the spiral groove of the pushing screw 20 is gradually reduced according to the direction from the discharge portion to the direction away from the discharge portion;
  • the volume of the spiral groove is V
  • the distance between the spiral groove and the discharge port 11 is L
  • the material storage device improves the structure of the pushing screw 20 so that the volume of the spiral groove gradually decreases from the discharging position to a direction away from the discharging position, that is, the direction in which the material is pushed by the pushing screw 20
  • the volume of the spiral groove gradually decreases from downstream to upstream, and the amount of material that can be accommodated and pushed by the spiral groove gradually increases from upstream to downstream. Therefore, the amount of material pushed by the upstream spiral groove is smaller than the amount of material that the downstream spiral groove can actually hold.
  • the material near the upper part of the downstream spiral groove will automatically fall into the spiral groove to fill the deficiency, so the material pushed by the push screw 20 to the discharge port 11 is not only the material near the inner wall area of the storage box 10, but also the storage
  • the material in the middle area of the material box 10 achieves uniform feeding, which keeps the material in the rice box level, effectively improves the material bulging phenomenon, and improves the accuracy of the detection device to judge the real-time material amount in the material box 10.
  • the material in the storage box 10 needs to be continuously replenished into the pushing screw 20 along the feeding direction, which can gradually increase the material quality in the feeding direction of the pushing screw 20
  • the flow rate further reduces the overall height of the rice grains and ensures the consistency of the material height.
  • the volume V of the spiral groove gradually decreases from downstream to upstream, that is, as the distance L between the spiral groove and the discharge port 11 increases, the volume V of the spiral groove gradually decreases, so V and L are negatively correlated. ; And the volume V of the spiral groove and the distance L between the spiral groove and the discharge port 11 satisfy a functional relationship, which guarantees an accurate correspondence between V and L, so long as the distance L between the spiral groove and the discharge port 11 is determined , The precise value of the volume V of the spiral groove can be obtained, so that the volume V of the spiral groove (according to the direction from the discharge site to the direction away from the discharge site) is gradually reduced to a precise degree, which is beneficial to each bottom of the storage box 10
  • the combined effect of laterally conveying materials and vertical gravity blanking at the part is more balanced, thereby further improving the uniformity of the feeding of the storage box 10, and further improving the flatness of the materials in the storage box 10; in addition, it is also convenient for the designer to quickly according to the function relationship
  • the screw pitch of the pushing screw 20 is maintained constant, and the depth of the spiral groove is gradually reduced.
  • the depth of the spiral groove of the pushing screw 20 gradually decreases, and the pitch of the screw of the pushing screw 20 remains unchanged, that is, the screw is pushed based on the direction of the pushing screw 20 pushing the material.
  • the depth of the spiral groove of 20 gradually increases from upstream to downstream, and the pitch of the screw of the pushing screw 20 remains unchanged from upstream to downstream.
  • This aspect makes the structure of the pushing screw 20 relatively regular. Compared to conventional screws, only the depth of the spiral groove needs to be changed. Yes, it is convenient for processing and forming.
  • the volume of each spiral groove can be changed in a gradient, so that there is no big difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, which further improves the uniformity of the feeding.
  • the depth H of the spiral groove of the pushing screw 20 gradually increases from upstream to downstream, that is, as the distance L between the spiral groove and the discharge port 11 decreases, the depth H of the spiral groove gradually increases, so H and L Negative correlation; and because the volume of the spiral groove is equal to the equivalent cross-sectional area of the spiral groove multiplied by the thread pitch, when the thread pitch remains constant, the function of the spiral groove and the equivalent cross-sectional area of the spiral groove satisfy a first-order function
  • the spiral groove has a circular shape, so the equivalent cross-sectional area of the spiral groove and the depth of the spiral groove satisfy a functional relationship, so the depth H of the spiral groove and the distance L between the spiral groove and the discharge port also satisfy Functional relationship.
  • the volume of the spiral groove is determined by the depth of the spiral groove and the pitch of the screw
  • the volume of the spiral groove can also be changed by changing the pitch of the screw or the depth of the spiral groove and the pitch of the screw at the same time.
  • the purpose of the application is not deviated from the design idea and purpose of the application, and therefore should be within the protection scope of the application.
  • the screw shaft diameter of the pushing screw 20 is gradually increased in a direction from the discharging portion to the direction away from the discharging portion.
  • the spiral groove is a three-dimensional structure and has a certain length
  • the depth of a spiral groove along the axis of the pushing screw 20 is not necessarily the same. There can be changes, and the depth of the spiral groove itself will not differ too much.
  • each spiral groove is the same, so the depth at the same part of each thread groove can be defined as the depth of the spiral groove (such as the depth of the upstream end of the screw groove, or the spiral groove The depth of the downstream end or the depth in the middle of the spiral groove), so that it can relatively accurately ensure that the equivalent cross-sectional area of the spiral groove changes correspondingly with the size of the discharge port 11 and can limit the reduction of the pushing screw 20 Design difficulty.
  • the pushing screw 20 includes a first screw, a second screw, and a connecting shaft, as shown in FIGS. 8 to 14.
  • One end of the first screw is connected to an inner wall of one side of the storage box 10, and the other end is disposed adjacent to the discharge port 11.
  • the second screw is coaxially disposed with the first screw and is opposite to the direction of the thread of the first screw.
  • One end is connected to the inner wall of the other side of the storage box 10, and the other end is disposed adjacent to the discharge port 11.
  • the connecting shaft is correspondingly arranged above the discharge port 11, and is fixedly connected to the other end of the first screw and the second screw, respectively. On the other end, so that the first screw rotates in synchronization with the second screw.
  • the pushing screw 20 is formed by the first screw, the connecting shaft, and the second screw being fixedly connected in order.
  • the area where the connecting shaft is located is the discharging part of the pushing screw 20, which is convenient for the discharging part of the pushing screw 20 and the storage box 10.
  • the discharge port 11 is arranged in the middle area to further improve the uniformity of feeding; and the first screw and the second screw are provided with reverse threads, so that the first screw and the second screw can be driven by the same driving device 60 and rotate During the process, the materials at the outer end can be pushed to the discharge port 11 synchronously, which can effectively save the amount of motor, streamline the product components, and reduce the cost of the product; and form a two-way spiral discharge system, which is achieved by using gravity with a slope compared to the traditional rice bin.
  • the material in the storage box 10 can be achieved without local residues, thereby avoiding the problem of the deterioration of the remaining materials and causing the overall quality of the materials in the storage box 10 to decrease.
  • the material at the bottom of the material box 10 is pushed to the discharge port 11 for discharge.
  • the storage time at the bottom of the material box 10 can be prioritized.
  • the long materials are discharged, so that the materials in the storage box 10 are updated according to the time sequence, and the overall quality of the materials in the storage box 10 is improved.
  • the first screw, the second screw, and the connecting shaft can be produced by fixed assembly, or can be made by integral molding.
  • the types of materials contained in the storage boxes 10 are also diverse, so the resistance to the materials in the storage boxes 10 is also different. Therefore, the factors that affect the feeding speed of each part in the storage box 10 are not the same. Therefore, V and L may meet the linear function relationship, cubic function relationship, quartic function relationship, etc. And the specific functional relationship may be different. Therefore, the specific shape of the pushing screw 20 is not limited to the above-mentioned functional relationship. In the actual production process, it can be reasonably designed according to the specific product, and the specific values of the constants in the above function can also be adjusted according to the specific product.
  • the screw depth of the pushing screw 20 is kept inconvenient, and the screw pitch is gradually reduced, that is, based on the direction of the material pushed by the pushing screw 20, the screw pitch is gradually reduced from downstream to upstream. While the depth of the spiral groove remains unchanged, this ensures that the volume of the spiral groove gradually increases from upstream to downstream, thereby achieving the purpose of uniform feeding; at the same time, this solution makes the structure of the pushing screw 20 relatively regular, which is convenient for processing and forming, The volume of each spiral groove can form a gradient change, which will not cause too much difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, thereby further improving the uniformity of the feeding.
  • S a ⁇ L 2 + b ⁇ L + c, that is, S and L satisfy a cubic function relationship, then S changes non-linearly with L, and also realizes the exact corresponding change of S and L, which is also conducive to uniform feeding.
  • S a ⁇ L 3 + b ⁇ L 2 + c ⁇ L + d, that is: S and L satisfy a cubic function relationship, then S also changes non-linearly with L, and also realizes the exact corresponding change of S and L, also Conducive to uniform feeding.
  • the difference from the fifth embodiment is that the number of the pushing screws 20 is one, and the discharge port 11 is close to the edge portion of the storage box 10.
  • the difference from the seventh embodiment is that the number of the pushing screws 20 is one, and the discharge port 11 is close to the edge portion of the storage box 10.
  • the discharge port 11 is adjacent to the edge portion of the storage box 10, and on the basis of improving the uniformity of the feeding, the number of parts is simplified and simplified. Product structure is conducive to saving production costs.
  • the number of the pushing screws 20 is plural, and the plurality of pushing screws 20 are arranged radially outside the discharging port 11 with the discharging port 11 as a center.
  • the multiple push screws 20 can simultaneously push materials in more than 10 parts of the storage box, This significantly increases the feed rate.
  • the outer diameter of the screw of the pushing screw 20 remains unchanged according to the direction from the discharge location to the direction away from the discharge location, as shown in FIGS. 9 to 14.
  • the outer diameter of the thread remains the same, making the structure of the push screw 20 relatively regular, convenient for processing and forming, and easy to install, reducing the shape requirements of the storage box 10 and facilitating installation; and the push screw 20 and the inner wall surface of the storage box 10 The distance between them can be kept unchanged, thereby ensuring that the material feeding speed is basically uniform. Further, for the solution in which the pitch of the spiral groove is kept constant and the depth of the spiral groove is changed, it is only necessary to change the screw shaft diameter; for the solution in which the depth of the spiral groove is kept constant and the pitch of the screw groove is changed, only the thread is changed Location.
  • the material storage device further includes: a conveying impeller 40 disposed at the bottom of the storage box 10 and corresponding to the discharge port 11 for conveying the upper material downward to the discharge port 11 This is shown in Figures 8 to 14.
  • the material storage device also includes a conveying impeller 40.
  • the conveying impeller 40 can transfer the material above it to the lower part through the rotation of the blades, and then discharge through the discharge port 11, thereby realizing the vertical discharge of the storage box 10 and the separate setting of the pushing screw.
  • the conveying efficiency is higher, and the material conveying amount can be accurately controlled by the speed of the screw rotation and the number of turns; and the conveying impeller 40 is located directly above the discharge port 11, so it can promote the vicinity of the discharge port 11 above. Material output, thereby further alleviating the phenomenon of material bulging in the middle area of the storage box 10 and further improving the uniformity of the feeding.
  • the conveying impeller 40 can be coaxially connected with the pushing screw 20, so that the driving control with the pushing screw 20 can be realized through the same driving device 60, and of course, it can also be controlled separately with the pushing screw 20 by using a different driving device 60.
  • the conveying impeller 40 is sleeved on a connecting shaft between the first screw and the second screw.
  • the material storage device further includes: an arc-shaped material conveying cavity 80, as shown in FIG. 7 and FIG. 8, which is formed by the arc surface opening downward and the plane below, and the discharge port 11 is smooth Extending to the arc surface, the arc-shaped material conveying cavity 80 is communicated with the storage box 10 through the discharge port 11.
  • the arc-shaped material conveying cavity 80 is formed by the arc surface opening downward and the plane below.
  • the discharge port 11 provided at the bottom of the storage box 10 smoothly extends to the arc surface, and is conveyed by the pushing screw 20 and the conveying impeller 40
  • the material to the discharge port 11 will be introduced into the arc-shaped material conveying cavity 80.
  • the material in the cavity 80 is introduced into the feeding pipe by the driving force of the fan, and then discharged into the material cleaning device to perform the material cleaning operation.
  • the material storage device further includes: a driving device 60, as shown in FIG. 7, which is correspondingly connected to the pushing screw 20 for driving the pushing screw 20 to rotate.
  • the driving device 60 includes a motor, and an output shaft of the motor is coaxially connected with the push screw 20; or, the driving device 60 includes a motor and a gear transmission mechanism connected to the output shaft of the motor, and the gear transmission mechanism is connected to the push screw 20.
  • the driving device 60 includes a motor, and the output shaft of the motor is coaxially connected with the push screw 20, that is, the motor directly drives the push screw 20 to rotate, the power transmission efficiency is high, and the number of required parts is small, which simplifies the product structure and is beneficial to save costs.
  • the driving device 60 includes a motor and a gear transmission mechanism, and the gear transmission mechanism is connected to the push screw 20, that is, the motor indirectly drives the push screw 20 to rotate through the gear transmission mechanism, and the gear transmission mechanism can achieve a speed increase effect, which is beneficial to reducing the motor Energy consumption, and convenient layout of the motor position according to the product structure.
  • the motor or the gear transmission mechanism is connected to the first screw or the second screw; the number of the push screws 20 is
  • the number of the driving devices 60 is also multiple, and each of the pushing screws 20 is driven.
  • An embodiment of the second aspect of the present application provides a cooking appliance including a cooking body and the material storage device according to any one of the embodiments of the first aspect, and a discharge port 11 thereof can communicate with an internal space of the cooking body.
  • the cooking appliance provided by the embodiment of the second aspect of the present application includes the material storage device of any one of the embodiments of the first aspect, and therefore has all the beneficial effects of any of the embodiments described above, which will not be repeated here.
  • the internal space of the cooking body there are no specific restrictions, for example: it may be a cleaning cavity in the upper cover, and the material is sent into the cleaning cavity for cleaning; it may also be an inner pot, and the material is sent into the inner pot for cleaning or cooking.
  • a feeding mechanism 70 is provided below the storage box 10, such as a transfer cavity connected to the discharge port 11 and a transfer pipe connected to the transfer cavity.
  • the material in the storage box 10 is first discharged into the transfer chamber.
  • the body is then driven to the internal space of the main body of the cooking body by the power of wind and other power.
  • the cooking appliance is a rice cooker.
  • a rice cooker it is not limited to a rice cooker, but may also be an electric pressure cooker, an electric steamer, an electric cooker, a soybean milk machine, or the like.
  • a full-automatic rice cooker is designed with a high-volume-ratio rice box.
  • the bottom is provided with a screw feeding device (that is, two push screws 20).
  • the high-volume-ratio rice box passes through the bottom of the two-way spiral discharge system instead of the traditional rice bin.
  • the function of automatic meter-down In the working state, the motor drives the screw to rotate, which drives the spiral structure at both ends to carry the rice grains on both sides to the middle, and then discharges through the discharge port (ie, the discharge port 11) at the bottom middle position. Because the spiral structure is close to the bottom of the rice bin, even a small amount of rice can achieve a good transport effect.
  • the phenomenon of unevenness in the rice box is prone to occur, which makes it impossible to accurately judge the real-time rice volume of the rice bin through the sensor.
  • the present application adjusts the shape of the anti-blocking cover 30 to adjust the distance between the anti-blocking cover 30 and the bottom side wall of the rice box, thereby controlling the speed of the rice in different parts of the rice box, and achieving the effect that the rice in the rice box remains flat during the rice-down process. .
  • the present application relates to a rice box and a rice-down structure, as shown in FIG. 1, which is mainly composed of a rice box (that is, a storage box 10), a rice feeding mechanism, and a motor.
  • a two-way spiral screw is provided at the bottom of the rice box. One end of the screw is connected to the motor, which can be directly connected to the motor output shaft or through a gear.
  • a blade is provided in the middle of the screw.
  • An anti-blocking cover 30 is provided above the screw. The anti-blocking cover 30 can prevent large particles from entering the pipeline of the rice feeding mechanism, and can also adjust the amount of rice to be lowered, so that the rice in the rice box is under the whole The effect of maintaining flatness during the rice process.
  • FIGs 2 and 3 The cross-sectional views of the rice box and the lower rice structure are shown in Figures 2 and 3.
  • 11 is the lower rice mouth
  • 20 is the bi-directional screw screw
  • 40 is the rotating blade (that is, the conveying impeller 40)
  • 30 is the anti-blocking cover
  • 12 is the rice.
  • the bottom wall of the box ie, the deflector wall 12).
  • D there is a certain distance D between the anti-blocking cover 30 and the bottom wall of the rice box, as shown in FIG. 4, the value of D ranges from 5-10mm; Equidistant, that is, the side of the anti-blocking cover 30 corresponding to the bottom wall of the rice box is non-linear, and one of them is shown in FIG. 5.
  • FIG. 6 A schematic diagram of the distance between the anti-blocking cover 30 and the bottom wall of the rice box is shown in FIG. 6.
  • the distance D0 between the anti-blocking cover 30 and the bottom wall of the rice box that is, the first gap passing section
  • the width of 51 is small, and the length of each part accounts for 10% to 30% of the total length of the anti-blocking cover 30; the distance D1 between the ends of the anti-blocking cover 30 and the center point in the length direction (that is, the second gap passes)
  • the width of the material segment 52) is relatively large, that is, D1> D0, and the length of this part accounts for 10% to 30% of the total length of the anti-blocking cover 30.
  • the motor rotates, the rice in the rice box enters the bottom from the gap between the anti-blocking cover 30 and the bottom side wall of the rice box, and the screw pushes the rice on both sides to the middle. (Ie discharge port 11) enter the rice feeding mechanism.
  • the rice volume on both sides of the rice box is likely to drop rapidly and the phenomenon of bulging in the middle may cause the real-time rice volume of the rice bin to be judged by sensors.
  • the rice in the rice box is pushed to the middle by the two-way spiral screw, and an anti-blocking cover 30 is provided above the screw, on the one hand, it can prevent large particles from progressing into the conveying pipe.
  • adjusting the shape of the anti-blocking cover 30 can adjust the clearance between it and the side wall of the bottom of the rice box. The clearance is smaller at the faster part of the lower meter and larger at the slower part of the lower meter.
  • the rice in the rice box is kept horizontal. The specific principle is as follows:
  • the motor drives the rotating blade to rotate counterclockwise, at the corresponding position of the rotating blade, the rice on the right enters the groove of the rotating blade and is taken to the left, causing the rice box in this part to move down faster.
  • the distance between the right side of the anti-blocking cover 30 and the bottom side wall of the rice box is small; because the rice on the right is brought to the left by the rotating blade, the rice box above the part is slower in the speed of lowering the rice, so the anti-blocking cover at this part
  • the distance between the left side of the 30 and the bottom wall of the rice box is large.
  • two screw structures of equal diameter and equal distance and different depth and equal diameter and equal depth and different distance are designed to meet the requirements of uniformly conveying materials.
  • a rice box and a lower rice structure designed in the present application are provided with a blade in the middle of the screw, which is coaxially driven with the screw, and the screw direction of the screw at both ends of the blade is opposite.
  • FIG. 8 A cross-sectional view of the rice box and the lower rice structure, as shown in Figure 8, 11 is the lower rice mouth (ie, the discharge port), 12 is a bidirectional screw screw, one end is left-handed, one end is right-handed, and the spiral direction is opposite; 13 is the blade (That is, the conveying impeller), the screws and blades at both ends of the rice box adopt coaxial transmission, and the overall effect ensures that rice grains are transported to the middle.
  • the motor drives the screw to rotate and transport the rice grains on both sides of the rice box to the middle, and the rice grains in the middle reach the rice feeding mechanism from the lower rice mouth at the bottom of the rice box through the blade turning.
  • Conventional screws are designed in equal depth, equal diameter, and groove depth. During the work process, only the end of the screw that is in contact with the rice box will be filled with rice grains, and the remaining screw parts will not be filled with rice grains, resulting in uneven rice grains.
  • the screw diameter (that is, the outer diameter of the screw) d1, the pitch (that is, the screw pitch) S remains unchanged, and the screw groove radius (that is, the screw shaft radius) R2 and the distance from the blade (that is, the distance between the spiral groove and the discharge port) L can be used.
  • the screw transport volume is proportional to the cross-sectional area of the screw transport, which is a linear relationship with the depth of the screw groove. With each revolution, the forward transport volume is equal to one pitch.
  • the distribution uses a linear or non-linear scheme.
  • the screw adopts equal-diameter, equal-spaced screw.
  • the diameter of the screw groove depth changes linearly or non-linearly.
  • the diameter of the screw groove near the middle of the screw is smaller than the diameter of the screw groove on both sides of the meter box.
  • the screw diameter d1 (ie, the outer diameter of the screw) and the depth of the groove H remain unchanged.
  • the screw transport volume is proportional to the screw pitch, and the forward transport volume is equal to the amount of material contained in one pitch for each revolution.
  • it is recommended to use the scheme of S k ⁇ L + C. If the resistance of the rice box to the material is different, other linear or non-linear solutions need to be adopted according to the resistance distribution.
  • the screw adopts a constant diameter and constant depth screw, and the pitch is linear or non-linear.
  • the pitch near the middle of the screw is larger than the pitch of the two sides of the meter box.
  • the flow rate that is, the rice grains in the rice box as a whole are evenly reduced to ensure the consistency of the rice grain height.
  • the first design is to design the screw to have a constant diameter or equidistant structure, and the depth of the screw groove changes linearly or non-linearly.
  • the diameter of the screw groove near the blade is smaller than the diameter of the screw groove on both sides of the meter box.
  • the screw is designed to have a constant diameter and a constant depth, and the pitch varies linearly or non-linearly.
  • the pitch near the middle of the blade is greater than the pitch on both sides of the meter box.
  • Unidirectional spiral (right-handed or left-handed) adopts equal distance and equal diameter.
  • the depth of the spiral groove changes linearly or non-linearly. It is transported to one end in a concentrated manner to ensure that the transported material drops uniformly along the transport length, as shown in Figure 13;
  • (Right-handed or left-handed) Use equal diameter and equal depth, linear or non-linear change in spacing, and focus on transport to one end to ensure that the transported material decreases uniformly along the transport length, as shown in Figure 14; the depth of the spiral groove and the diameter of the screw shaft The effect of change is the same, which is equivalent to changing the transportation area.
  • the material storage device provided in the present application can prevent large particles of grain by filtering the large particles by using an anti-blocking cover and using the gap between the anti-blocking cover and the inner wall surface of the storage box. Mis-entry leads to blockage of the feeding pipe or jam; at the same time, by properly setting the width of the gap, it is also possible to adjust the amount of material in the storage box, and then control the speed of the material in the storage box.
  • the feeding speed of each part tends to be consistent, so that the material in the storage box tends to be flat, thereby improving the accuracy of detecting the real-time material amount in the storage box by the sensor.
  • an embodiment of the third aspect of the present application provides a material storage device, including: a storage box 10 and a pushing screw 20.
  • the material storage device improves the structure of the pushing screw 20 so that the volume of the spiral groove gradually decreases from the discharging position to the direction away from the discharging position, that is, the pushing screw 20
  • the direction of the material to be pushed is the benchmark.
  • the volume of the spiral groove gradually decreases from downstream to upstream.
  • the amount of material that can be accommodated and pushed by the spiral groove gradually increases from upstream to downstream. Therefore, the amount of material pushed by the upstream spiral groove is smaller than the actual capacity of the downstream spiral groove.
  • the detection device determines the real-time material amount in the storage box 10 accuracy.
  • the material in the storage box 10 needs to be continuously replenished into the pushing screw 20 along the feeding direction, which can gradually increase the material quality in the feeding direction of the pushing screw 20
  • the flow rate further reduces the overall height of the rice grains and ensures the consistency of the material height.
  • the volume V of the spiral groove gradually decreases from downstream to upstream, that is, as the distance L between the spiral groove and the discharge port 11 increases, the volume V of the spiral groove gradually decreases, so V and L are negatively correlated. ; And the volume V of the spiral groove and the distance L between the spiral groove and the discharge port 11 satisfy a functional relationship, which guarantees an accurate correspondence between V and L, so long as the distance L between the spiral groove and the discharge port 11 is determined , The precise value of the volume V of the spiral groove can be obtained, so that the volume V of the spiral groove (according to the direction from the discharge site to the direction away from the discharge site) is gradually reduced to a precise degree, which is beneficial to each bottom of the storage box 10
  • the combined effect of laterally conveying materials and vertical gravity blanking at the part is more balanced, thereby further improving the uniformity of the feeding of the storage box 10, and further improving the flatness of the materials in the storage box 10; in addition, it is also convenient for the designer to quickly according to the function relationship
  • the screw pitch of the pushing screw 20 remains unchanged, and the depth of the spiral groove gradually decreases.
  • the depth of the spiral groove of the pushing screw 20 gradually decreases, and the pitch of the screw of the pushing screw 20 remains unchanged, that is, the screw is pushed based on the direction of the pushing screw 20 pushing the material.
  • the depth of the spiral groove of 20 gradually increases from upstream to downstream, and the pitch of the screw of the pushing screw 20 remains unchanged from upstream to downstream.
  • This aspect makes the structure of the pushing screw 20 relatively regular. Compared to conventional screws, only the depth of the spiral groove needs to be changed. Yes, it is convenient for processing and forming.
  • the volume of each spiral groove can be changed in a gradient, so that there is no big difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, which further improves the uniformity of the feeding.
  • the depth H of the spiral groove of the pushing screw 20 gradually increases from upstream to downstream, that is, as the distance L between the spiral groove and the discharge port 11 decreases, the depth H of the spiral groove gradually increases, so H and L Negative correlation; and because the volume of the spiral groove is equal to the equivalent cross-sectional area of the spiral groove multiplied by the thread pitch, when the thread pitch remains constant, the function of the spiral groove and the equivalent cross-sectional area of the spiral groove satisfy a first-order function
  • the spiral groove has a circular shape, so the equivalent cross-sectional area of the spiral groove and the depth of the spiral groove satisfy a functional relationship, so the depth H of the spiral groove and the distance L between the spiral groove and the discharge port also satisfy Functional relationship.
  • the volume of the spiral groove is determined by the depth of the spiral groove and the pitch of the screw
  • the volume of the spiral groove can also be changed by changing the pitch of the screw or the depth of the spiral groove and the pitch of the screw at the same time.
  • the purpose of the application is not deviated from the design idea and purpose of the application, and therefore should be within the protection scope of the application.
  • the screw shaft diameter of the pushing screw 20 is gradually increased in a direction from the discharging portion to the direction away from the discharging portion.
  • the spiral groove is a three-dimensional structure and has a certain length
  • the depth of a spiral groove along the axis of the pushing screw 20 is not necessarily the same. There can be changes, and the depth of the spiral groove itself will not differ too much.
  • each spiral groove is the same, so the depth at the same part of each thread groove can be defined as the depth of the spiral groove (such as the depth of the upstream end of the screw groove, or the spiral groove The depth of the downstream end or the depth in the middle of the spiral groove), so that it can relatively accurately ensure that the equivalent cross-sectional area of the spiral groove changes correspondingly with the size of the discharge port 11 and can limit the reduction of the pushing screw 20 Design difficulty.
  • the pushing screw 20 includes a first screw, a second screw, and a connecting shaft, as shown in FIGS. 8 to 14.
  • One end of the first screw is connected to an inner wall of one side of the storage box 10, and the other end is disposed adjacent to the discharge port 11.
  • the second screw is coaxially disposed with the first screw and is opposite to the direction of the thread of the first screw.
  • One end is connected to the inner wall of the other side of the storage box 10, and the other end is disposed adjacent to the discharge port 11.
  • the connecting shaft is correspondingly arranged above the discharge port 11, and is fixedly connected to the other end of the first screw and the second screw, respectively. On the other end, so that the first screw rotates in synchronization with the second screw.
  • the pushing screw 20 is formed by the first screw, the connecting shaft, and the second screw being fixedly connected in order.
  • the area where the connecting shaft is located is the discharging part of the pushing screw 20, which is convenient for the discharging part of the pushing screw 20 and the storage box 10.
  • the discharge port 11 is arranged in the middle area to further improve the uniformity of feeding; and the first screw and the second screw are provided with reverse threads, so that the first screw and the second screw can be driven by the same driving device 60 and rotate During the process, the materials at the outer end can be pushed to the discharge port 11 synchronously, which can effectively save the amount of motor, streamline the product components, and reduce the cost of the product; and form a two-way spiral discharge system, which is achieved by using gravity with a slope compared to the traditional rice bin.
  • the material in the storage box 10 can be achieved without local residues, thereby avoiding the problem of the deterioration of the remaining materials and causing the overall quality of the materials in the storage box 10 to decrease.
  • the material at the bottom of the material box 10 is pushed to the discharge port 11 for discharge.
  • the storage time at the bottom of the material box 10 can be prioritized.
  • the long materials are discharged, so that the materials in the storage box 10 are updated according to the time sequence, and the overall quality of the materials in the storage box 10 is improved.
  • the first screw, the second screw, and the connecting shaft can be produced by fixed assembly, or can be made by integral molding.
  • the types of materials contained in the storage boxes 10 are also diverse, so the resistance to the materials in the storage boxes 10 is also different. Therefore, the factors that affect the feeding speed of each part in the storage box 10 are not the same. Therefore, V and L may meet the linear function relationship, cubic function relationship, quartic function relationship, etc. And the specific functional relationship may be different. Therefore, the specific shape of the pushing screw 20 is not limited to the above-mentioned functional relationship. In the actual production process, it can be reasonably designed according to the specific product, and the specific values of the constants in the above function can also be adjusted according to the specific product.
  • the screw depth of the pushing screw 20 is kept inconvenient, and the screw pitch is gradually reduced, that is, based on the direction of the material pushed by the pushing screw 20, the screw pitch is gradually reduced from downstream to upstream. While the depth of the spiral groove remains unchanged, this ensures that the volume of the spiral groove gradually increases from upstream to downstream, thereby achieving the purpose of uniform feeding; at the same time, this solution makes the structure of the pushing screw 20 relatively regular, which is convenient for processing and forming, The volume of each spiral groove can form a gradient change, which will not cause too much difference or difficult to control due to the simultaneous change of the thread pitch and the depth of the spiral groove, thereby further improving the uniformity of the feeding.
  • S a ⁇ L 2 + b ⁇ L + c, that is, S and L satisfy a cubic function relationship, then S changes non-linearly with L, and also realizes the exact corresponding change of S and L, which is also conducive to uniform feeding.
  • S a ⁇ L 3 + b ⁇ L 2 + c ⁇ L + d, that is: S and L satisfy a cubic function relationship, then S also changes non-linearly with L, and also realizes the exact corresponding change of S and L, also Conducive to uniform feeding.
  • the difference from the second embodiment is that the number of the pushing screws 20 is one, and the discharge port 11 is close to the edge portion of the storage box 10.
  • the difference from the fourth embodiment is that the number of pushing screws 20 is one, and the discharge port 11 is close to the edge portion of the storage box 10.
  • the discharge port 11 is adjacent to the edge portion of the storage tank 10, and on the basis of improving the uniformity of the feeding, the number of parts is simplified and simplified. Product structure is conducive to saving production costs.
  • the number of the pushing screws 20 is plural, and the plurality of pushing screws 20 are arranged radially outside the discharging port 11 with the discharging port 11 as a center.
  • the multiple push screws 20 can simultaneously push materials in more than 10 parts of the storage box, This significantly increases the feed rate.
  • the outer diameter of the screw of the pushing screw 20 remains unchanged according to the direction from the discharge location to the direction away from the discharge location, as shown in FIGS. 9 to 14.
  • the outer diameter of the thread remains the same, making the structure of the push screw 20 relatively regular, convenient for processing and forming, and easy to install, reducing the shape requirements of the storage box 10 and facilitating installation; and the push screw 20 and the inner wall surface of the storage box 10 The distance between them can be kept unchanged, thereby ensuring that the material feeding speed is basically uniform. Further, for the solution in which the pitch of the spiral groove is kept constant and the depth of the spiral groove is changed, it is only necessary to change the screw shaft diameter; for the solution in which the depth of the spiral groove is kept constant and the pitch of the screw groove is changed, only the thread is changed Location.
  • the material storage device further includes: a conveying impeller 40 disposed at the bottom of the storage box 10 and corresponding to the discharge port 11 for conveying the upper material downward to the discharge port 11 This is shown in Figures 8 to 14.
  • the material storage device also includes a conveying impeller 40.
  • the conveying impeller 40 can transfer the material above it to the lower part through the rotation of the blades, and then discharge through the discharge port 11, thereby realizing the vertical discharge of the storage box 10 and the separate setting of the pushing screw.
  • the conveying efficiency is higher, and the material conveying amount can be accurately controlled by the speed of the screw rotation and the number of turns; and the conveying impeller 40 is located directly above the discharge port 11, so it can promote the vicinity of the discharge port 11 above. Material output, thereby further alleviating the phenomenon of material bulging in the middle area of the storage box 10 and further improving the uniformity of the feeding.
  • the conveying impeller 40 may be coaxially connected with the pushing screw 20, so that the driving control with the pushing screw 20 can be realized through the same driving device 60, and of course, it can also be controlled separately with the pushing screw 20 by using different driving devices 60.
  • the conveying impeller 40 is sleeved on a connecting shaft between the first screw and the second screw.
  • the material storage device further includes: an arc-shaped material conveying cavity 80, as shown in FIG. 7 and FIG. 8, which is formed by the arc surface opening downward and the plane below, and the discharge port 11 is smooth Extending to the arc surface, the arc-shaped material conveying cavity 80 is communicated with the storage box 10 through the discharge port 11.
  • the arc-shaped material conveying cavity 80 is formed by the arc surface opening downward and the plane below.
  • the discharge port 11 provided at the bottom of the storage box 10 smoothly extends to the arc surface, and is conveyed by the pushing screw 20 and the conveying impeller 40
  • the material to the discharge port 11 will be introduced into the arc-shaped material conveying cavity 80.
  • the material in the cavity 80 is introduced into the feeding pipe by the driving force of the fan, and then discharged into the material cleaning device to perform the material cleaning operation.
  • the material storage device further includes: a driving device 60, as shown in FIG. 7, which is correspondingly connected to the pushing screw 20 for driving the pushing screw 20 to rotate.
  • the driving device 60 includes a motor, and an output shaft of the motor is coaxially connected with the push screw 20; or, the driving device 60 includes a motor and a gear transmission mechanism connected to the output shaft of the motor, and the gear transmission mechanism is connected to the push screw 20.
  • the driving device 60 includes a motor, and the output shaft of the motor is coaxially connected with the push screw 20, that is, the motor directly drives the push screw 20 to rotate, the power transmission efficiency is high, and the number of required parts is small, which simplifies the product structure and is beneficial to save costs.
  • the driving device 60 includes a motor and a gear transmission mechanism, and the gear transmission mechanism is connected to the push screw 20, that is, the motor indirectly drives the push screw 20 to rotate through the gear transmission mechanism, and the gear transmission mechanism can achieve a speed increase effect, which is beneficial to reducing the motor Energy consumption, and convenient layout of the motor position according to the product structure.
  • the motor or the gear transmission mechanism is connected to the first screw or the second screw; the number of the push screws 20 is
  • the number of the driving devices 60 is also multiple, and each of the pushing screws 20 is driven.
  • An embodiment of the fourth aspect of the present application provides a cooking appliance including a cooking body and the material storage device according to any one of the embodiments of the third aspect, and a discharge port 11 thereof can communicate with an internal space of the cooking body.
  • the cooking appliance provided by the embodiment of the fourth aspect of the present application includes the material storage device of any one of the embodiments of the third aspect, and therefore has all the beneficial effects of any of the embodiments described above, which will not be repeated here.
  • the internal space of the cooking body there are no specific restrictions, for example: it may be a cleaning cavity in the upper cover, and the material is sent into the cleaning cavity for cleaning; it may also be an inner pot, and the material is sent into the inner pot for cleaning or cooking.
  • the cooking appliance is a rice cooker.
  • a rice cooker it is not limited to a rice cooker, but may also be an electric pressure cooker, an electric stew pot, an electric steamer, an electric cooker, a soybean milk machine, and the like.
  • a high-volume-ratio rice box that is, a storage box
  • a screw conveying device that is, a push screw
  • Traditional rice bins can transport rice grains by controlling the angle.
  • the motor drives the screw to rotate, driving the spiral structure at both ends to transport rice grains at both ends of the rice box to the middle, and then unloading through the discharge port at the bottom middle position. Because the spiral structure is close to the bottom of the rice bin (that is, the storage box), even when the amount of rice is small, a good transport effect can be achieved.
  • the conventional equal-diameter and equal-distance constant-depth screw is easy to cause the phenomenon of rice bulging in the middle of the rice box, and the real-time rice quantity of the rice bin cannot be accurately judged by the sensor.
  • the present application has designed two screw structures of equal diameter, equal interval, different depth, and equal diameter, equal depth, and different interval to meet the requirements of uniformly conveying materials.
  • a rice box and a rice-down structure designed in the present application are mainly composed of a rice box (that is, a storage box), a rice feeding mechanism (that is, a structure of a material conveying cavity + a feeding pipe, etc.) and a motor, as shown in FIG. 7. .
  • a two-way spiral screw is provided at the bottom of the rice box. One end of the screw is connected to the motor, which can be directly connected to the motor output shaft, or through a gear or belt.
  • FIG. 8 A cross-sectional view of the rice box and the lower rice structure, as shown in Figure 8, 11 is the lower rice mouth (ie, the discharge port), 12 is a bidirectional screw screw, one end is left-handed, one end is right-handed, and the spiral direction is opposite; 13 is the blade (That is, the conveying impeller), the screws and blades at both ends of the rice box adopt coaxial transmission, and the overall effect ensures that rice grains are transported to the middle.
  • the motor drives the screw to rotate and transport the rice grains on both sides of the rice box to the middle, and the rice grains in the middle reach the rice feeding mechanism from the lower rice mouth at the bottom of the rice box through the blade turning.
  • Conventional screws are designed in equal depth, equal diameter, and groove depth. During the work process, only the end of the screw that is in contact with the rice box will be filled with rice grains, and the remaining screw parts will not be filled with rice grains, resulting in uneven rice grains.
  • the screw diameter (that is, the outer diameter of the screw) d1, the pitch (that is, the screw pitch) S remains unchanged, and the screw groove radius (that is, the screw shaft radius) R2 and the distance from the blade (that is, the distance between the spiral groove and the discharge port) L can be used.
  • the screw transport volume is proportional to the cross-sectional area of the screw transport, which is a linear relationship with the depth of the screw groove. With each revolution, the forward transport volume is equal to one pitch.
  • the distribution uses a linear or non-linear scheme.
  • the screw adopts equal-diameter, equal-spaced screw.
  • the diameter of the screw groove depth changes linearly or non-linearly.
  • the diameter of the screw groove near the middle of the screw is smaller than the diameter of the screw groove on both sides of the meter box.
  • the screw diameter d1 (ie, the outer diameter of the screw) and the depth of the groove H remain unchanged.
  • the screw transport volume is proportional to the screw pitch, and the forward transport volume is equal to the amount of material contained in one pitch for each revolution.
  • it is recommended to use the scheme of S k ⁇ L + C. If the resistance of the rice box to the material is different, other linear or non-linear solutions need to be adopted according to the resistance distribution.
  • the screw adopts a constant diameter and constant depth screw, and the pitch is linear or non-linear.
  • the pitch near the middle of the screw is larger than the pitch of the two sides of the meter box.
  • the flow rate that is, the rice grains in the rice box as a whole are evenly reduced to ensure the consistency of the rice grain height.
  • the first design is to design the screw to have a constant diameter or equidistant structure, and the depth of the screw groove changes linearly or non-linearly.
  • the diameter of the screw groove near the blade is smaller than the diameter of the screw groove on both sides of the meter box.
  • the screw is designed to have a constant diameter and a constant depth, and the pitch varies linearly or non-linearly.
  • the pitch near the middle of the blade is greater than the pitch on both sides of the meter box.
  • Unidirectional spiral (right-handed or left-handed) adopts equal distance and equal diameter.
  • the depth of the spiral groove changes linearly or non-linearly. It is transported to one end in a concentrated manner to ensure that the transported material drops uniformly along the transport length, as shown in Figure 13;
  • (Right-handed or left-handed) Use equal diameter and equal depth, linear or non-linear change in spacing, and focus on transport to one end to ensure that the transported material decreases uniformly along the transport length, as shown in Figure 14; the depth of the spiral groove and the diameter of the screw shaft The effect of change is the same, which is equivalent to changing the transportation area.
  • the material storage device improves the structure of the pushing screw so that the volume of the spiral groove gradually decreases from the discharging position to the direction away from the discharging position, that is, the material is pushed by the pushing screw.
  • the direction of the spiral groove gradually decreases from downstream to upstream.
  • the amount of material that can be accommodated and pushed by the spiral groove gradually increases from upstream to downstream. Therefore, the amount of material pushed by the upstream spiral groove is smaller than the downstream spiral groove can actually hold.
  • the amount of material, the material near the upper part of the downstream spiral groove will automatically fall into the spiral groove to fill the shortage, so the material pushed by the screw to the discharge port is not only the material near the inner wall area of the storage box, but also the storage material.
  • the material in the middle of the box achieves uniform feeding, which keeps the material in the rice box level, effectively improves the phenomenon of material bulging, and improves the accuracy of the detection device to determine the real-time material amount in the storage box.
  • the volume of the spiral groove gradually increases along the feeding direction of the pushing screw
  • the material in the storage box needs to be replenished into the pushing screw along the feeding direction, which can gradually increase the material mass flow rate in the feeding direction of the pushing screw, and then
  • the height of the rice grains is reduced uniformly, and the consistency of the material height is ensured.
  • the volume V of the spiral groove and the distance L between the spiral groove and the discharge port satisfy a functional relationship, which guarantees an accurate correspondence between V and L.
  • the distance L between the spiral groove and the discharge port is determined, that is, The accurate value of the volume V of the spiral groove can be obtained, so that the volume V of the spiral groove (according to the direction from the discharge position to the direction away from the discharge position) is gradually reduced to be accurately controlled, which is beneficial to the lateral conveyance of each part of the bottom of the storage box
  • the combined effect of material and vertical gravity blanking is more balanced, thereby further improving the uniformity of the material in the storage box and further improving the flatness of the material in the storage box.
  • a material storage device comprising:
  • Material storage box with a discharge opening for outputting materials
  • a push screw is arranged at the bottom of the storage box, and the discharge part of the push screw is adjacent to the discharge port, and can push the material to the discharge port along its axis when rotating, and according to the The discharging part points in a direction away from the discharging part, and the volume of the spiral groove of the pushing screw gradually decreases;
  • V f (L).
  • L a ⁇ H 2 + b ⁇ H + c, wherein the a, the b, and the c are constants, and the a is not equal to 0; or
  • L a ⁇ H 3 + b ⁇ H 2 + c ⁇ H + d, where the a, the b, the c, and the d are constants, And said a is not equal to 0; or
  • H k ⁇ L + C, where the k and the C are constants, and the k is not equal to 0; or
  • H a ⁇ L 2 + b ⁇ L + c, wherein the a, the b, and the c are constants, and the a is not equal to 0; or
  • H a ⁇ L 3 + b ⁇ L 2 + c ⁇ L + d, where the a, the b, the c, and the d are constants, And a is not equal to zero.
  • S k ⁇ L + C, where the k and the C are constants, and the k is not equal to 0; or
  • S a ⁇ L 2 + b ⁇ L + c, wherein the a, the b, and the c are constants, and the a is not equal to 0; or
  • S a ⁇ L 3 + b ⁇ L 2 + c ⁇ L + d, where the a, the b, the c, and the d are constants, And a is not equal to zero.
  • the outer diameter of the thread of the pushing screw remains unchanged in accordance with the direction from the discharging part to the direction away from the discharging part; and / or
  • the material storage device further includes: a conveying impeller, which is disposed at the bottom of the storage box and corresponds to the discharge port, and is used to convey the upper material downward to the discharge port; and / or
  • the material storage device further includes: an arc-shaped material conveying cavity, which is formed by an arc surface opened downward and a plane below, and the discharge port smoothly extends to the arc surface to make the arc-shaped material
  • the conveying cavity communicates with the storage box through the discharge port.
  • the number of the pushing screws is one, and the discharge port is close to an edge portion of the storage box; or
  • the number of the pushing screws is multiple, and the plurality of the pushing screws are radially arranged outside the discharging port with the discharging port as a center; or
  • the pushing screw includes: a first screw, one end of which is connected to an inner wall of one side of the storage box, and the other end of which is disposed adjacent to the discharge port; a second screw, which is coaxially disposed with the first screw, and Opposite to the direction of setting the thread of the first screw, one end is connected to the inner wall of the other side of the storage box, and the other end is disposed adjacent to the discharge port; a connecting shaft is correspondingly disposed at the discharge port.
  • the other end of the first screw and the other end of the second screw are fixedly connected respectively, so that the first screw and the second screw rotate synchronously.
  • the driving device is correspondingly connected with the pushing screw and is used for driving the pushing screw to rotate.
  • the driving device includes a motor, and an output shaft of the motor is coaxially connected with the pushing screw; or
  • the driving device includes a motor and a gear transmission mechanism connected to an output shaft of the motor, and the gear transmission mechanism is connected to the pushing screw.
  • a cooking appliance comprising:

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Cookers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

本申请提供了一种物料存储装置及烹饪器具，物料存储装置包括：储料箱，其底部开设有排料口；推送螺杆，位于储料箱的底部，且其出料部位临近排料口，能够在旋转时沿其轴向将物料推送至排料口处；防堵罩，安装在储料箱内，并罩设在推送螺杆的上方，且防堵罩与储料箱的内壁面之间限定有供物料通过的过料间隙；其中，沿推送螺杆的送料方向，过料间隙与推送螺杆相对应的部分包括第一间隙过料段和一端与第一间隙过料段相连的第二间隙过料段，且第一间隙过料段的宽度小于第二间隙过料段的宽度。本申请通过合理设置过料间隙的宽度来调节储料箱内各个部位的下料量，进而控制储料箱各个部位的下料速度，达到了使储料箱内的物料趋于平整的效果。

Description

物料存储装置及烹饪器具
本申请要求于2018年9月28日提交中国专利局、申请号为201821586750.1、发明名称为“物料存储装置及烹饪器具”和于2018年9月30日提交中国专利局、申请号为201821615677.6、发明名称为“物料存储装置及烹饪器具”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及厨房电器技术领域，具体而言，涉及一种物料存储装置及包含该物料存储装置的烹饪器具。
背景技术
目前，有些物料存储装置，在储料箱底部设有推送螺杆，来提高排料速度，并将储料箱边缘部位的物料推送至排料口处排出，以防止边缘部位的物料长时间得不到更新而发生霉变。但是，这也导致储料箱内各个部位的下料速度不等，下料均匀性差，易出现物料不平整的现象，致使不能通过传感器精准判断储料箱内的实时物料量。
发明内容
为了解决上述技术问题至少之一，本申请的一个目的在于提供一种物料存储装置。
本申请的另一个目的在于提供一种包括上述物料存储装置的烹饪器具。
为了实现上述目的，本申请第一方面的技术方案提供了一种物料存储装置，包括：储料箱，其底部开设有用于输出物料的排料口；推送螺杆，位于所述储料箱的底部，且其出料部位临近所述排料口，能够在旋转时沿其轴向将物料推送至所述排料口处；防堵罩，安装在所述储料箱内，并罩设在所述推送螺 杆的上方，且所述防堵罩与所述储料箱的内壁面之间限定有供所述物料通过的过料间隙；其中，沿所述推送螺杆的送料方向，所述过料间隙与所述推送螺杆相对应的部分包括第一间隙过料段和一端与所述第一间隙过料段相连的第二间隙过料段，且所述第一间隙过料段的宽度小于所述第二间隙过料段的宽度。
本申请第一方面的技术方案提供的物料存储装置，通过设置防堵罩，利用防堵罩与储料箱的内壁面之间的过料间隙来对大颗粒物料进行过滤，从而能够防止大颗粒粮食误入导致输料管堵塞或者卡机现象；同时，通过合理设置过料间隙的宽度，还能够调节储料箱内各个部位的下料量，进而控制储料箱各个部位的下料速度，使各个部位的下料速度趋于一致，进而使得储料箱内的物料趋于平整，从而提高了通过传感器来检测储料箱内的实时物料量的准确度。
具体而言，由于储料箱内的物料需经过过料间隙到达防堵罩下方，进而在推送螺杆的推送下到达排料口处排出，因而过料间隙在各个部位的宽度影响着各个部位的下料量，宽度越大，该部位的下料量越多，下料速度越快，反之，宽度越小，该部位的下料量越少，下料速度越小。由于推送螺杆工作时，会沿其轴向将物料向排料口处推送，即：第一间隙过料段的物料会被搬运至第二间隙过料段处，然后通过排料口排出，因而第一间隙过料段处的物料只能由其上方的物料落下进行补充，而第二间隙过料段处的物料会有第一间隙过料段横向输送过来的物料进行补充，因此，在间隙宽度相等的情况下，第一间隙过料段所在位置的下料速度会大于第二间隙过料段所在位置的下料速度，导致推送螺杆上方区域下料不均，物料不平整。因此，使第一间隙过料段的宽度小于第二间隙过料段的宽度，能够适当减小第一间隙过料段所在位置的下料量，进而使第一间隙过料段所在位置处的下料速度与第二间隙过料段所在位置处的下料速度趋于相等，有效提高推送螺杆上方区域的下料均匀性，有利于实现通过传感器精准判断储料箱内的实时物料量。
另外，本申请提供的上述技术方案中的物料存储装置还可以具有如下附加技术特征：
在上述技术方案中，所述物料存储装置还包括：输送叶轮，设置在所述储料箱的底部，并与所述排料口相对应，用于把上方的物料向下输送至所述排料口处；其中，所述防堵罩也罩设在所述输送叶轮的上方，且所述过料间隙与所 述输送叶轮相对应的部分形成为第三间隙过料段，所述第三间隙过料段与所述第二间隙过料段的另一端相连。
物料存储装置还包括输送叶轮，输送叶轮能够将其上方的物料通过叶片旋转传递到下方，进而通过排料口排出，从而实现了储料箱的纵向排料，与单独设置推送螺杆的结构相比，输送效率更高，并且能够通过螺杆转动的速度和转动圈数精准控制物料输送量；且输送叶轮位于排料口的正上方，防堵罩也罩设在输送叶轮的上方，并与储料箱的内壁米之间限定出第三间隙过料段，因而能够促进排料口上方附近的物料输出，从而进一步缓解储料箱排料口上方区域物料隆起的现象，进一步提高给料均匀性。
在上述技术方案中，所述防堵罩与所述储料箱相对设置的两个内壁面之间分别限定出所述过料间隙，两个所述过料间隙的所述第三间隙过料段分别记为推料间隙过料段和下料间隙过料段，且所述推料间隙过料段处的至少部分物料能够在所述输送叶轮旋转时被旋转推送至所述下料间隙过料段处并通过所述排料口排出；其中，所述推料间隙过料段的宽度小于所述下料间隙过料段的宽度。
防堵罩与储料箱相对设置的两个内壁面之间分别限定出过料间隙，则物料可以从两个过料间隙同时向防堵罩下方输送，从而有效提高了下料速度。其中，两个过料间隙的第三间隙过料段分别记为推料间隙过料段和下料间隙过料段，由于输送叶轮旋转时会沿其周向方向将物料向排料口处推送，即：推料间隙过料段处的至少部分物料会被输送叶轮搬运至下料间隙过料段处，然后通过排料口排出，因而相较于推料间隙过料段，下料间隙过料段的物料补充来源多了来自于推料间隙过料段处的物料，因此，在间隙宽度相等的情况下，推料间隙过料段所在位置的下料速度会大于下料间隙过料段所在位置的下料速度，导致排料口上方区域下料不均，物料不平整。因此，使推料间隙过料段的宽度小于下料间隙过料段的宽度，能够适当减小推料间隙过料段所在位置的下料量，进而使推料间隙过料段所在位置处的下料速度与下料间隙过料段所在位置处的下料速度趋于相等，有效提高排料口上方区域的下料均匀性，进一步提高储料箱内的物料平整度，进一步提高通过传感器判断储料箱内实时物料量的准确度。
值得说明的是，推料间隙过料段和下料间隙过料段的具体位置由输送叶轮 的旋转方向决定。无论输送叶轮顺时针旋转还是逆时针旋转，推料间隙过料段与下料间隙过料段的关系均是：推料间隙过料段上方的物料会落入输送叶轮的旋转叶片之间的凹槽内，然后随输送叶轮向上旋转，到达下料间隙过料段处，然后在重力的作用下自动排出排料口。
在上述技术方案中，所述推料间隙过料段的宽度小于所述第二间隙过料段的宽度；和/或，所述推料间隙过料段的宽度等于所述第一间隙过料段的宽度；和/或，所述下料间隙过料段的宽度等于所述第二间隙过料段的宽度。
相较于第二间隙过料段，推料间隙过料段处的物料既能够被旋转推送至下料间隙过料段处，也能够通过排料口直接排出，因而在间隙宽度相等的情况下，推料间隙过料段处的物料下降速度会大于第二间隙过料段，故而使推料间隙过料段的宽度小于第二间隙过料段的宽度，能够使第二间隙过料段所在位置的下料速度与推料间隙过料段所在位置的下料速度趋于相等，进而进一步提高储料箱各个部位的下料均匀性，进一步提高储料箱内的物料平整度。
推料间隙过料段的宽度等于第一间隙过料段的宽度，由于第一间隙过料段的宽度小于第二间隙过料段的宽度，因而推料间隙过料段的宽度也小于第二间隙过料段的宽度，有利于进一步提高储料箱各个部位的下料均匀性，进一步提高储料箱内的物料平整度；同时也使得产品的结构较为规整，便于加工成型。当然，推料间隙过料段的宽度也可以不等于第一间隙过料段的宽度，在实际生产过程中可以根据需要进行调整。
相较于第二间隙过料段，下料间隙过料段处的物料既有来自于推料间隙过料段处的物料进行补充，又能够通过排料口快速排出，因而在间隙宽度相等的情况下，下料间隙过料段处的物料下降速度与第二间隙过料段处的物料下降速度相差不大，故而使下料间隙过料段的宽度等于第二间隙过料段的宽度，能够使第二间隙过料段所在位置的下料速度与下料间隙过料段所在位置的下料速度大致相等，进而进一步提高储料箱各个部位的下料均匀性，进一步提高储料箱内的物料平整度；且下料间隙过料段的宽度等于第二间隙过料段的宽度，使得产品的结构较为规整，便于加工成型。当然，下料间隙过料段的宽度也可以不等于第二间隙过料段的宽度，在实际生产过程中可以根据需要进行调整。
在上述任一技术方案中，所述第一间隙过料段与所述第二间隙过料段通过 第一过渡间隙过料段相连，所述第一过渡间隙过料段的宽度沿所述推送螺杆的送料方向逐渐增大；和/或，所述第一间隙过料段为等宽结构；和/或，所述第二间隙过料段为等宽结构；和/或，所述过料间隙的宽度在5mm-10mm的范围内；和/或，所述储料箱的底部局部向下凹陷形成送料槽，所述排料口开设在所述送料槽的底部，所述送料槽两侧的部位被构造成由所述储料箱的侧壁向所述送料槽所在位置倾斜过渡的导流壁，所述防堵罩与所述导流壁之间限定出所述过料间隙。
第一间隙过料段与第二间隙过料段通过第一过渡间隙过料段相连，即：第一间隙过料段与第二间隙过料段之间还设有第一过渡间隙过料段，且第一过渡间隙过料段的宽度沿推送螺杆的送料方向逐渐增大，从而起到了良好的过渡作用，便于各个部位的物料在重力的作用下能够稳定均匀地下落，也有利于进一步提高储料箱内各个部位的下料均匀性，进一步提高储料箱内的物料平整度。
同理，第二间隙过料段与推料间隙过料段通过第二过渡间隙过料段相连，即：第二间隙过料段与推料间隙过料段之间还设有第二过渡间隙过料段，且第二过渡间隙过料段的宽度沿推送螺杆的送料方向逐渐减小，从而也起到了良好的过渡作用，便于各个部位的物料在重力的作用下能够稳定均匀地下落，也有利于进一步提高储料箱内各个部位的下料均匀性，进一步提高储料箱内的物料平整度。
第一间隙过料段为等宽结构，使得产品结构较为规整，便于加工成型，且造型美观。
同理，第二间隙过料段为等宽结构，使得产品结构较为规整，便于加工成型，且造型美观。
将过料间隙的宽度限定在5mm-10mm的范围内，既保证了花生等大颗粒粮食不能通过过料间隙，从而起到了良好的过滤作用，又保证了大米等小颗粒粮食可以快速穿过过料间隙，从而保证了下料速率。当然，过料间隙的宽度不局限于上述范围，在实际生产过程中可以根据需要进行调整。
利用导流壁的导流作用可以促进物料向送料槽处汇聚以提升推送螺杆对物料的驱动效率；且驱动螺杆旋转的电机运行时的振动可以促进物料沿导流壁向送料槽滑移，起到对物料驱动的协同作用；并降低了物料残留在导流壁上的 概率，从而避免残留的物料变质引起储料箱内物料整体质量下降的情况发生。
优选地，送料槽的截面呈圆弧形，且推送螺杆与送料槽同心设置(即推送螺杆的中心轴线与送料槽截面的中心轴线共线)，这使得推送螺杆与送料槽的槽壁之间的距离相对较小且间隙保持上下均匀一致，且越靠上，送料槽的槽壁越陡峭(即送料槽的槽壁的斜率越大)，这非常有利于送料槽内靠上的物料自动下滑进入推送螺杆的螺纹间隙内。因此，当储料箱内的物料剩余量相对较少时，送料槽内的绝大部分物料甚至全部物料均能够与推送螺杆接触，进而被推送至推送口处，从而显著降低了推送螺杆的螺纹间出现物料空缺的概率，既提高了能耗利用率，又提高了储料箱足量均匀下料的可靠性，且进一步降低了储料箱内部分物料得不到及时更新而发生霉变的风险。
在上述任一技术方案中，所述储料箱的内壁面为直面，所述防堵罩靠近所述储料箱的内壁面的边缘被构造成非直线型，使所述防堵罩与所述储料箱的内壁面之间形成非等宽的所述过料间隙。
相较于储料箱，防堵罩的尺寸相对较小，因而通过对防堵罩的形状进行改进，将其靠近储料箱的内壁面的边缘构造成非直线型，使其与储料箱的内壁面之间形成非等宽的过料间隙，较容易实现，适于推广。当然，也可以对储料箱的形状进行改进，或者同时对储料箱和防堵罩的形状进行改进，以形成非等宽的过料间隙，由于上述技术方案也能够实现本申请的目的，且没有脱离本申请的设计思想和宗旨，因而均应在本申请的保护范围内。
在上述技术方案中，所述防堵罩靠近所述储料箱的内壁面的边缘被构造成折线型。
将防堵罩靠近储料箱的内壁面的边缘构造成折线型，则通过合理布置折线的长度及弯折角度等，即可方便调节各个间隙过料段的间隙宽度以及长度等尺寸；且折线形结构相较于曲线型结构，更易于加工制造。
在上述任一技术方案中，所述推送螺杆的数量为两个，两个所述推送螺杆同轴连接且送料方向相反，所述排料口位于两个所述推送螺杆之间，且其中一个所述推送螺杆的一端与驱动装置相连，以使两个所述推送螺杆能够同步旋转并同时向所述排料口处推送物料。
推送螺杆的数量为两个，两个推送螺杆同轴连接且送料方向相反，且排料 口位于两个推送螺杆之间，从而形成了双向螺旋卸料系统，实现了双向螺旋送料，起到了较好的运输效果；且两个推送螺杆只需一套驱动装置(如电机+齿轮传动机构)即可实现同步旋转，省去了一套驱动装置，有效简化了产品结构，节约了生产成本。
在上述技术方案中，所述第一间隙过料段的长度与所述过料间隙的总长度之比在0.1-0.3的范围内；和/或，所述第二间隙过料段的长度与所述过料间隙的总长度之比在0.1-0.3的范围内。
将第一间隙过料段的长度与过料间隙的总长度(即防堵罩的总长度)之比限定在0.1-0.3的范围内，保证了第一间隙过料段、第二间隙过料段及第三间隙过料段均具有相对合适的长度，以起到有效的控制下料速度，提高物料平整度效果。当然，第一间隙过料段的长度与过料间隙的总长度之比不局限于上述范围，在实际生产过程中可以根据需要进行调整。
将第二间隙过料段的长度与过料间隙的总长度(即防堵罩的总长度)之比限定在0.1-0.3的范围内，保证了第一间隙过料段、第二间隙过料段及第三间隙过料段均具有相对合适的长度，以起到有效的控制下料速度，提高物料平整度效果。当然，第一间隙过料段的长度与过料间隙的总长度之比不局限于上述范围，在实际生产过程中可以根据需要进行调整。
在上述任一技术方案中，按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺旋槽的容积逐渐减小；其中，记所述螺旋槽的容积为V，所述螺旋槽与所述排料口之间的距离为L，所述V与所述L满足函数关系：V＝f(L)。
本技术方案提供的物料存储装置，通过改进推送螺杆的结构，使其螺旋槽的容积按照由出料部位向远离出料部位的方向逐渐减小，即：以推送螺杆推送物料的方向为基准，螺旋槽的容积由下游向上游逐渐减小，则螺旋槽能够容纳并推送的物料量由上游向下游逐渐增加，因此上游螺旋槽推送的物料量小于下游螺旋槽实际能够容纳的物料量，则下游螺旋槽上方附近的物料会自动向下落入螺旋槽中以填补不足，因而推送螺杆推送至排料口处的物料不仅仅只是靠近储料箱内壁区域的物料，还有储料箱中部区域的物料，从而实现了均匀给料，使得米箱内的物料保持水平，有效改善了物料隆起现象，提高了检测装置判断 储料箱内的实时物料量的准确性。换言之，由于螺旋槽的容积沿推送螺杆的送料方向逐渐增加，需要储料箱内的物料沿着送料方向不断往推送螺杆内补充，这能够逐渐增加推送螺杆送料方向上的物料质量流率，进而使得米粒高度整体均匀减小，保证了物料高度的一致性。
同时，由于螺旋槽的容积V由下游向上游逐渐减小，即：随着螺旋槽与排料口之间的距离L的增加，螺旋槽的容积V逐渐减小，因而V与L负相关；且螺旋槽的容积V和螺旋槽与排料口之间的距离L满足函数关系，这保证了V与L的准确对应，因而只要确定了螺旋槽与排料口之间的距离L，即可得到螺旋槽的容积V的精确值，使得螺旋槽的容积V(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，有利于储料箱底部各个部位横向输送物料和纵向重力落料的综合作用更加均衡，从而进一步提高储料箱给料的均匀性，进一步提高储料箱内物料的平整度；此外，也便于设计人员根据函数关系快速设计出推送螺杆的具体结构，以缩短设计周期，进而缩短产品的生产周期。
至于V与L之间的具体函数关系，可以根据产品的具体结构及具体用途进行调整，可以是一次函数、二次函数、三次函数、四次函数等，在此不做限定。
在上述技术方案中，按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹间距保持不变，所述螺旋槽的深度逐渐减小，记所述螺旋槽的深度为H，所述H与所述L满足函数关系：L＝f 1(H)。
按照由出料部位指向远离出料部位的方向，推送螺杆的螺旋槽的深度逐渐减小，推送螺杆的螺纹间距保持不变，即：以推送螺杆推送物料的方向为基准，推送螺杆的螺旋槽深度由上游向下游逐渐增加，推送螺杆的螺纹间距由上游向下游保持不变，这一方面使得推送螺杆的结构相对规整，相较于常规螺杆只需改变螺旋槽深度即可，便于加工成型，另一方面使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆的螺旋槽深度由上游向下游逐渐增加，即：随着螺旋槽与排料口之间的距离L的减小，螺旋槽的深度H逐渐增加，因而H与L负 相关；又由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，因而当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系；而螺旋槽呈圆环状，因而螺旋槽的等效横截面积与螺旋槽的深度之间满足函数关系，故而螺旋槽的深度H和螺旋槽与出料口之间的距离L也满足函数关系。这保证了H与L的准确对应，因而只要确定了螺旋槽与排料口之间的距离L，即可得到螺旋槽的深度H的精确值，使得螺旋槽的深度H(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，由于螺旋槽的深度H是推送螺杆更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
进一步地，由于螺旋槽的深度H等于推送螺杆的螺纹外径(记为d1)与螺杆轴径(记为d2)之差的一半，即：H＝(d1-d2)/2，因而当螺纹外径保持不变时，螺杆轴的半径R2(R2＝d2÷2＝d1/2-H)与L也满足函数关系，由于螺杆轴的半径R2也是推送螺杆更为直观的尺寸特征，因而也更加便于设计人员根据函数关系快速设计出推送螺杆的具体结构；且由于H与L负相关，因而R2与L正相关，即：随着L的增加，R2逐渐增大。
当然，由于螺旋槽的容积由螺旋槽深度和螺纹间距共同决定，故而也可以仅通过改变螺纹间距或者同时改变螺旋槽深度和螺纹间距来实现螺旋槽的容积变化，由于上述技术方案均能够实现本申请的目的，且均没有脱离本申请的设计思想和宗旨，因而均应在本申请的保护范围内。
值得说明的是，由于螺旋槽是立体结构，具有一定的长度，故而一个螺旋槽沿推送螺杆轴线方向的深度不一定是完全相同，可以存在变化，又由于螺旋槽本身的深度不会相差过大，且该技术方案中螺纹间距保持不变，即各个螺旋槽的长度相同，因而可以定义各个螺纹槽相同部位处的深度为该螺旋槽的深度(比如定义螺纹槽上游端的深度、或者螺旋槽下游端的深度或者螺旋槽正中处的深度)，这样，既能够相对准确地保证螺旋槽的等效横截面积随着与排料口的间距大小发生相应变化，又能够限制降低推送螺杆的设计难度。
在上述技术方案中，所述H与所述L满足一次函数关系：L＝k×H+C，其中，所述k和所述C为常数，且所述k不等于0；或者，所述H与所述L满 足二次函数关系：L＝a×H 2+b×H+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者，所述H与所述L满足三次函数关系：L＝a×H 3+b×H 2+c×H+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0；或者，所述H与所述L满足一次函数关系：H＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者，所述H与所述L满足二次函数关系：H＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者，所述H与所述L满足三次函数关系：H＝a×L 3+b×L 2+c×L+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0。
L＝k×H+C，即：H与L满足一次函数关系，则H随着L线性变化，这使得推送螺杆的结构较为规整，便于加工成型。可以理解的是，由于L＞0，H＞0，且L与H负相关，因而常数k＜0，常数C＞0。
L＝a×H 2+b×H+c，即：H与L满足二次函数关系，则H随着L非线性变化。如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系，螺旋槽的等效横截面积与螺旋槽的深度的平方H 2之间满足一次函数关系，故而螺旋槽的深度的平方H 2和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，H与L满足二次函数关系，更加准确，更有利于均匀给料。可以理解的是，由于L＞0，H＞0，且L与H负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
L＝a×H 3+b×H 2+c×H+d，即：H与L满足三次函数关系，则H也随着L非线性变化，也实现了H与L的准确对应变化，也有利于均匀给料。可以理解的是，由于L＞0，H＞0，且L与H负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
H＝k×L+C，即：L与H满足一次函数关系，则H随着L线性变化，这使得推送螺杆的结构较为规整，便于加工成型。可以理解的是，由于H＞0，L＞0，且H与L负相关，因而常数k＜0，常数C＞0。
H＝a×L 2+b×L+c，即：L与H满足二次函数关系，则H随着L非线性变化。如前所述，螺旋槽的容积V与H满足函数关系V＝f(H)，当螺纹间距保 持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系，螺旋槽的等效横截面积与螺旋槽的深度的平方H 2之间满足一次函数关系，故而螺旋槽的深度的平方H 2和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L 4满足一次函数关系时，H与L满足二次函数关系，更加准确，更有利于均匀给料。可以理解的是，由于H＞0，L＞0，且H与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
H＝a×L 3+b×L 2+c×L+d，即：H与L满足三次函数关系，则H也随着L非线性变化，也实现了H与L的准确对应变化，也有利于均匀给料。可以理解的是，由于L＞0，H＞0，且L与H负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
值得说明的是，由于不同储料箱的具体结构和材质存在差别，储料箱内盛装的物料的种类也多种多样，因而储料箱内各处对物料的阻力也存在差别。故而，影响储料箱内各个部位的下料速度的因素也不尽相同，故而V与L可能满足一次函数关系，也可能满足二次函数关系、三次函数关系、四次函数等关系等，且具体的函数关系也可能不同。因而推送螺杆的具体形状也不局限于上述函数关系的限定，在实际生产过程中可以根据具体产品合理设计，且上述函数中各个常数的具体数值也可以根据具体产品进行调整。
在上述技术方案中，按照由所述出料部位指向远离所述出料部位的方向，所述螺旋槽的螺纹深度保持不变，所述推送螺杆的螺纹间距逐渐减小，记所述推送螺杆的螺纹间距为S，所述S与所述L满足函数关系：S＝f 2(L)。
按照由出料部位指向远离出料部位的方向，推送螺杆的螺纹深度保持不便，螺纹间距逐渐减小，即：以推送螺杆推送物料的方向为基准，螺纹间距由下游向上游逐渐减小，而螺旋槽深度保持不变，这样确保了螺旋槽的容积由上游向下游逐渐增加，进而实现均匀给料的目的；同时，该方案使得推送螺杆的结构相对规整，便于加工成型，并使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆的螺纹间距由下游向上游逐渐减小，即：随着螺旋槽 与排料口之间的距离L的增加，螺纹间距S逐渐减小，因而S与L负相关；又如前所述，由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，当螺旋槽的深度保持不变时，螺旋槽的等效横截面积保持不变，因而螺旋槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和螺旋槽与出料口之间的距离L也满足函数关系。这保证了S与L的准确对应，因而只要确定了螺旋槽与排料口之间的距离L，即可得到螺纹间距S的精确值，使得螺纹间距S(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，由于螺纹间距S是推送螺杆更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
在上述技术方案中，所述S与所述L满足一次函数关系：S＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者，所述S与所述L满足二次函数关系：S＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者，所述S与所述L满足三次函数关系：S＝a×L 3+b×L 2+c×L+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0。
S＝k×L+C，即：S与L满足一次函数关系，则S随着L线性变化，这使得推送螺杆的结构较为规整，便于加工成型。此外，如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺旋槽的深度保持不变时，螺纹槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，S与L满足一次函数关系，更加准确，更有利于均匀给料。可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数k＜0，常数C＞0。
S＝a×L 2+b×L+c，即：S与L满足二次函数关系，则S随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
S＝a×L 3+b×L 2+c×L+d，即：S与L满足三次函数关系，则S也随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。可以理解 的是，由于L＞0，S＞0，且S与L负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
在上述任一技术方案中，按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹外径保持不变；和/或，所述物料存储装置还包括：输送叶轮，设置在所述储料箱的底部，并与所述排料口相对应，用于把上方的物料向下输送至所述排料口处；和/或，所述物料存储装置还包括：弧形物料输送腔，由向下开口的弧面与下方的平面围合形成，所述排料口平滑延伸至所述弧面上，以使所述弧形物料输送腔通过所述排料口与所述储料箱导通。
螺纹外径保持不变，使得推送螺杆的结构较为规整，便于加工成型，也便于安装，降低了对储料箱的形状要求，便于安装；且推送螺杆与储料箱的内壁面之间的距离可以保持不变，进而保证物料的下料速度基本均匀。进一步地，对于上述螺纹间距保持不变螺旋槽深度发生变化的方案而言，只需改变螺杆轴径即可；对于上述螺旋槽深度保持不变螺纹间距发生变化的方案而言，只需改变螺纹位置即可。
物料存储装置还包括输送叶轮，输送叶轮能够将其上方的物料通过叶片旋转传递到下方，进而通过排料口排出，从而实现了储料箱的纵向排料，与单独设置推送螺杆的结构相比，输送效率更高，并且能够通过螺杆转动的速度和转动圈数精准控制物料输送量；且输送叶轮位于排料口的正上方，因而能够促进排料口上方附近的物料输出，从而进一步缓解储料箱中部区域物料隆起的现象，进一步提高给料均匀性。
进一步地，输送叶轮可以与推送螺杆同轴连接，这样可以与推送螺杆通过同一驱动装置实现联动式控制，当然也可以与推送螺杆采用不同的驱动装置分别控制。优选地，输送叶轮套装在第一螺杆与第二螺杆之间的连接轴上。
弧形物料输送腔由向下开口的弧面与下方的平面围合形成，设置于储料箱底部的排料口平滑延伸至弧面上，则通过推送螺杆以及输送叶轮输送至排料口的物料会导入弧形物料输送腔内，通过在弧形物料输送腔的一端设置风机，在另一端开设开口，并与进料管连通，能够使进入弧形物料输送腔内的物料在风机的驱动力导入进料管，进而排到物料清洗装置内，执行物料清洗操作。
在上述任一技术方案中，所述推送螺杆的数量为一个，所述排料口靠近所述储料箱的边缘部位；或者，所述推送螺杆的数量为多个，多个所述推送螺杆以所述排料口为中心呈放射状布置在所述排料口的外侧；或者，所述推送螺杆包括：第一螺杆，其一端连接至所述储料箱的一侧内壁，其另一端临近所述排料口设置；第二螺杆，与所述第一螺杆共轴设置，且与所述第一螺杆的螺纹设置方向相反，其一端连接至所述储料箱的另一侧内壁，其另一端临近所述排料口设置；连接轴，对应设置在所述排料口的上方，分别固定连接至所述第一螺杆的另一端与所述第二螺杆的另一端，以使所述第一螺杆与所述第二螺杆同步旋转。
只设置一个推送螺杆，相应地，排料口临近储料箱的边缘部位，在提高给料均匀性的基础上，精简了部件数量，简化了产品结构，有利于节约生产成本。
通过设置多个推送螺杆，多个推送螺杆以排料口为中心呈放射状布置在排料口的外侧，则多个推送螺杆能够同时推送储料箱多个部位的物料，进而显著提高了给料速度。
推送螺杆由第一螺杆、连接轴以及第二螺杆依次固定连接形成，则连接轴所在的区域即为推送螺杆的出料部位，便于将推送螺杆的出料部位及储料箱的排料口设置在中间区域，进一步提高给料均匀性；并且第一螺杆与第二螺杆设置有反向的螺纹，使得第一螺杆和第二螺杆可以共用同一驱动装置驱动，且在旋转过程中能够分别同步将外侧端的物料推送至排料口，有效节省电机用量，精简产品组成部件，降低产品成本；且形成了双向螺旋卸料系统，相对于传统米仓通过斜度利用重力实现物料外排的方案而言，可以实现储料箱内的物料无局部残留，从而避免残留的物料变质引起储料箱内物料整体质量下降的问题；此外，通过利用推料螺杆将位于储料箱内底部位置处的物料推至排料口处进行外排，可以优先将位于储料箱底部的保存时间较长的物料排出，如此实现根据时间顺序对储料箱内的物料进行更新，提升储料箱内物料的整体质量。其中，第一螺杆、第二螺杆与连接轴可以通过固定组装生成，也可以通过一体成型的方式制成。
在上述任一技术方案中，所述物料存储装置还包括：驱动装置，与所述推送螺杆对应连接，用于驱动所述推送螺杆旋转。
在该技术方案中，通过设置驱动装置，实现了推送螺杆的可控式自动旋转，可以根据输送的物料的量确定输送速度，从而有利于提升输送效率。
在上述技术方案中，所述驱动装置包括电机，所述电机的输出轴与所述推送螺杆同轴连接；或者，所述驱动装置包括电机和与所述电机的输出轴相连的齿轮传动机构，所述齿轮传动机构与所述推送螺杆相连接。
驱动装置包括电机，电机的输出轴与推送螺杆同轴连接，即：电机直接带动推送螺杆旋转，动力传递效率高，且所需的零部件数量较少，简化了产品结构，有利于节约成本。
或者，驱动装置包括电机和齿轮传动机构，齿轮传动机构与推送螺杆相连接，即：电机通过齿轮传动机构间接带动推送螺杆旋转，齿轮传动机构可以实现增速效果，有利于减小电机能耗，且便于根据产品结构合理布局电机的位置。
进一步地，对于前述技术方案中推送螺杆包括第一螺杆、第二螺杆和连接轴的技术方案而言，电机或者齿轮传递机构与第一螺杆或者第二螺杆相连；对于推送螺杆的数量为多个的技术方案而言，驱动装置的数量也为多个，分别驱动各个推送螺杆。
本申请第二方面的技术方案提供了一种烹饪器具，包括：烹饪主体；和如第一方面技术方案中任一项所述的物料存储装置，其排料口能够与所述烹饪主体的内部空间相连通。
本申请第二方面的技术方案提供的烹饪器具，因包括第一方面技术方案中任一项所述的物料存储装置，因而具有上述任一技术方案所具有的一切有益效果，在此不再赘述。
至于烹饪主体的内部空间，不受具体限制，比如：可以是上盖内的清洗腔体，物料送入清洗腔体内进行清洗；也可以是内锅，物料送入内锅中进行清洗或者烹饪。
在上述技术方案中，所述烹饪器具为电饭煲。
当然不局限于电饭煲，也可以为电压力锅、电炖锅、电蒸锅、电煮锅、豆浆机等。
本申请第二方面的技术方案提供了一种烹饪器具，包括：烹饪主体；和如第一方面技术方案中任一项所述的物料存储装置，其排料口能够与所述烹饪主 体的内部空间相连通。
本申请第二方面的技术方案提供的烹饪器具，因包括第一方面技术方案中任一项所述的物料存储装置，因而具有上述任一技术方案所具有的一切有益效果，在此不再赘述。
至于烹饪主体的内部空间，不受具体限制，比如：可以是上盖内的清洗腔体，物料送入清洗腔体内进行清洗；也可以是内锅，物料送入内锅中进行清洗或者烹饪。
具体地，储料箱下方设有送料机构，如与排料口相连通的中转腔体和与中转腔体相连通的输料管，储料箱内的物料先排入中转腔体内，然后在风力等动力的驱动下输送至烹饪主体的内部空间。
在上述任一技术方案中，所述烹饪器具为电饭煲。
当然，不局限于电饭煲，也可以为电压力锅、电蒸锅、电煮锅、豆浆机等。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本申请一些实施例所述的物料存储装置的立体结构示意图；
图2是图1所示物料存储装置一个视角的剖视结构示意图；
图3是图1所示物料存储装置另一个视角的剖视结构示意图；
图4是图3所示物料存储装置的主视结构示意图；
图5是本申请一些实施例所述的防堵罩的立体结构示意图；
图6是图5所示防堵罩与储料箱内壁面的配合示意图；
图7是本申请一些实施例所述的物料存储装置的立体结构示意图；
图8是图7所示物料存储装置的半剖结构示意图；
图9是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图；
图10是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图；
图11是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图；
图12是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图；
图13是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图；
图14是本申请一个实施例所述的推送螺杆及输送叶轮的剖视结构示意图。
其中，图1至图14中的附图标记与部件名称之间的对应关系为：
10储料箱，11排料口，12导流壁，20推送螺杆，30防堵罩，40输送叶轮，50过料间隙，51第一间隙过料段，52第二间隙过料段，53第三间隙过料段，54第一过渡间隙过料段，55第二过渡间隙过料段，60驱动装置，70送料机构，80物料输送腔。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图14描述根据本申请一些实施例所述的物料存储装置及烹饪器具。
如图1至图6所示，本申请第一方面的实施例提供的物料存储装置，包括：储料箱10、推送螺杆20和防堵罩30。
具体地，储料箱10的底部开设有用于输出物料的排料口11，如图2至图4所示；推送螺杆20位于储料箱10的底部，且其出料部位临近排料口11，如图2至图4所示，能够在旋转时沿其轴向将物料推送至排料口11处；防堵罩30安装在储料箱10内，并罩设在推送螺杆20的上方，且防堵罩30与储料箱 10的内壁面之间限定有供物料通过的过料间隙50，如图3和图4所示；其中，沿推送螺杆20的送料方向，过料间隙50与推送螺杆20相对应的部分包括第一间隙过料段51和一端与第一间隙过料段51相连的第二间隙过料段52，且第一间隙过料段51的宽度D0小于第二间隙过料段52的宽度D1，如图6所示。
本申请第一方面的实施例提供的物料存储装置，通过设置防堵罩30，利用防堵罩30与储料箱10的内壁面之间的过料间隙50来对大颗粒物料进行过滤，从而能够防止大颗粒粮食误入导致输料管堵塞或者卡机现象；同时，通过合理设置过料间隙50的宽度，还能够调节储料箱10内各个部位的下料量，进而控制储料箱10各个部位的下料速度，使各个部位的下料速度趋于一致，进而使得储料箱10内的物料趋于平整，从而提高了通过传感器来检测储料箱10内的实时物料量的准确度。
具体而言，由于储料箱10内的物料需经过过料间隙50到达防堵罩30下方，进而在推送螺杆20的推送下到达排料口11处排出，因而过料间隙50在各个部位的宽度影响着各个部位的下料量，宽度越大，该部位的下料量越多，下料速度越快，反之，宽度越小，该部位的下料量越少，下料速度越小。由于推送螺杆20工作时，会沿其轴向将物料向排料口11处推送，即：第一间隙过料段51的物料会被搬运至第二间隙过料段52处，然后通过排料口11排出，因而第一间隙过料段51处的物料只能由其上方的物料落下进行补充，而第二间隙过料段52处的物料会有第一间隙过料段51横向输送过来的物料进行补充，因此，在间隙宽度相等的情况下，第一间隙过料段51所在位置的下料速度会大于第二间隙过料段52所在位置的下料速度，导致推送螺杆20上方区域下料不均，物料不平整。因此，使第一间隙过料段51的宽度D0小于第二间隙过料段52的宽度D1，能够适当减小第一间隙过料段51所在位置的下料量，进而使第一间隙过料段51所在位置处的下料速度与第二间隙过料段52所在位置处的下料速度趋于相等，有效提高推送螺杆20上方区域的下料均匀性，有利于实现通过传感器精准判断储料箱10内的实时物料量。
下面结合一些实施例来详细描述本申请提供的物料存储装置的具体结构。
实施例一
在上述实施例中，物料存储装置还包括：输送叶轮40，设置在储料箱10的底部，并与排料口11相对应，如图2至图4所示，用于把上方的物料向下输送至排料口11处；其中，防堵罩30也罩设在输送叶轮40的上方，且过料间隙50与输送叶轮40相对应的部分形成为第三间隙过料段53，第三间隙过料段53与第二间隙过料段52的另一端相连，如图6所示。
物料存储装置还包括输送叶轮40，输送叶轮40能够将其上方的物料通过叶片旋转传递到下方，进而通过排料口11排出，从而实现了储料箱10的纵向排料，与单独设置推送螺杆20的结构相比，输送效率更高，并且能够通过螺杆转动的速度和转动圈数精准控制物料输送量；且输送叶轮40位于排料口11的正上方，防堵罩30也罩设在输送叶轮40的上方，并与储料箱10的内壁米之间限定出第三间隙过料段53，因而能够促进排料口11上方附近的物料输出，从而进一步缓解储料箱10排料口11上方区域物料隆起的现象，进一步提高给料均匀性。
进一步地，防堵罩30与储料箱10相对设置的两个内壁面之间分别限定出过料间隙50，如图4所示，两个过料间隙50的第三间隙过料段53分别记为推料间隙过料段和下料间隙过料段，且推料间隙过料段处的至少部分物料能够在输送叶轮40旋转时被旋转推送至下料间隙过料段处并通过排料口11排出；其中，推料间隙过料段的宽度D2小于下料间隙过料段的宽度D2。
防堵罩30与储料箱10相对设置的两个内壁面之间分别限定出过料间隙50，则物料可以从两个过料间隙50同时向防堵罩30下方输送，从而有效提高了下料速度。其中，两个过料间隙50的第三间隙过料段53分别记为推料间隙过料段和下料间隙过料段，由于输送叶轮40旋转时会沿其周向方向将物料向排料口11处推送，即：推料间隙过料段处的至少部分物料会被输送叶轮40搬运至下料间隙过料段处，然后通过排料口11排出，因而相较于推料间隙过料段，下料间隙过料段的物料补充来源多了来自于推料间隙过料段处的物料，因此，在间隙宽度相等的情况下，推料间隙过料段所在位置的下料速度会大于下料间隙过料段所在位置的下料速度，导致排料口11上方区域下料不均，物料不平整。因此，使推料间隙过料段的宽度D2小于下料间隙过料段的宽度D2，能够适当减小推料间隙过料段所在位置的下料量，进而使推料间隙过料 段所在位置处的下料速度与下料间隙过料段所在位置处的下料速度趋于相等，有效提高排料口11上方区域的下料均匀性，进一步提高储料箱10内的物料平整度，进一步提高通过传感器判断储料箱10内实时物料量的准确度。
值得说明的是，推料间隙过料段和下料间隙过料段的具体位置由输送叶轮40的旋转方向决定。无论输送叶轮40顺时针旋转还是逆时针旋转，推料间隙过料段与下料间隙过料段的关系均是：推料间隙过料段上方的物料会落入输送叶轮40的旋转叶片之间的凹槽内，然后随输送叶轮40向上旋转，到达下料间隙过料段处，然后在重力的作用下自动排出排料口11。
进一步地，推料间隙过料段的宽度D2小于第二间隙过料段52的宽度D1。
相较于第二间隙过料段52，推料间隙过料段处的物料既能够被旋转推送至下料间隙过料段处，也能够通过排料口11直接排出，因而在间隙宽度相等的情况下，推料间隙过料段处的物料下降速度会大于第二间隙过料段52，故而使推料间隙过料段的宽度D2小于第二间隙过料段52的宽度D1，能够使第二间隙过料段52所在位置的下料速度与推料间隙过料段所在位置的下料速度趋于相等，进而进一步提高储料箱10各个部位的下料均匀性，进一步提高储料箱10内的物料平整度。
优选地，推料间隙过料段的宽度D2等于第一间隙过料段51的宽度D0。
推料间隙过料段的宽度D2等于第一间隙过料段51的宽度D0，由于第一间隙过料段51的宽度D0小于第二间隙过料段52的宽度D1，因而推料间隙过料段的宽度D2也小于第二间隙过料段52的宽度D1，有利于进一步提高储料箱10各个部位的下料均匀性，进一步提高储料箱10内的物料平整度；同时也使得产品的结构较为规整，便于加工成型。当然，推料间隙过料段的宽度D2也可以不等于第一间隙过料段51的宽度D0，在实际生产过程中可以根据需要进行调整。
优选地，下料间隙过料段的宽度D2等于第二间隙过料段52的宽度D1。
相较于第二间隙过料段52，下料间隙过料段处的物料既有来自于推料间隙过料段处的物料进行补充，又能够通过排料口11快速排出，因而在间隙宽度相等的情况下，下料间隙过料段处的物料下降速度与第二间隙过料段52处的物料下降速度相差不大，故而使下料间隙过料段的宽度D2等于第二间隙过 料段52的宽度D1，能够使第二间隙过料段52所在位置的下料速度与下料间隙过料段所在位置的下料速度大致相等，进而进一步提高储料箱10各个部位的下料均匀性，进一步提高储料箱10内的物料平整度；且下料间隙过料段的宽度D2等于第二间隙过料段52的宽度D1，使得产品的结构较为规整，便于加工成型。当然，下料间隙过料段的宽度D2也可以不等于第二间隙过料段52的宽度D1，在实际生产过程中可以根据需要进行调整。
进一步地，第一间隙过料段51与第二间隙过料段52通过第一过渡间隙过料段54相连，第一过渡间隙过料段54的宽度沿推送螺杆20的送料方向逐渐增大，如图6所示。
第一间隙过料段51与第二间隙过料段52通过第一过渡间隙过料段54相连，即：第一间隙过料段51与第二间隙过料段52之间还设有第一过渡间隙过料段54，且第一过渡间隙过料段54的宽度沿推送螺杆20的送料方向逐渐增大，从而起到了良好的过渡作用，便于各个部位的物料在重力的作用下能够稳定均匀地下落，也有利于进一步提高储料箱10内各个部位的下料均匀性，进一步提高储料箱10内的物料平整度。
同理，第二间隙过料段52与推料间隙过料段通过第二过渡间隙过料段55相连，如图6所示，即：第二间隙过料段52与推料间隙过料段之间还设有第二过渡间隙过料段55，且第二过渡间隙过料段55的宽度沿推送螺杆20的送料方向逐渐减小，从而也起到了良好的过渡作用，便于各个部位的物料在重力的作用下能够稳定均匀地下落，也有利于进一步提高储料箱10内各个部位的下料均匀性，进一步提高储料箱10内的物料平整度。
优选地，第一间隙过料段51为等宽结构，如图6所示。
优选地，第二间隙过料段52为等宽结构，如图6所示。
第一间隙过料段51为等宽结构，使得产品结构较为规整，便于加工成型，且造型美观。
同理，第二间隙过料段52为等宽结构，使得产品结构较为规整，便于加工成型，且造型美观。
优选地，过料间隙50的宽度在5mm-10mm的范围内。
将过料间隙50的宽度限定在5mm-10mm的范围内，既保证了花生等大颗 粒粮食不能通过过料间隙50，从而起到了良好的过滤作用，又保证了大米等小颗粒粮食可以快速穿过过料间隙50，从而保证了下料速率。当然，过料间隙50的宽度不局限于上述范围，在实际生产过程中可以根据需要进行调整。
实施例二
与实施例一的区别在于：在实施例一的基础上，进一步地，储料箱10的底部局部向下凹陷形成送料槽，排料口11开设在送料槽的底部，送料槽两侧的部位被构造成由储料箱10的侧壁向送料槽所在位置倾斜过渡的导流壁12，防堵罩30与导流壁12之间限定出过料间隙50，如图2至图4所示。
利用导流壁12的导流作用可以促进物料向送料槽处汇聚以提升推送螺杆20对物料的驱动效率；且驱动螺杆旋转的电机运行时的振动可以促进物料沿导流壁12向送料槽滑移，起到对物料驱动的协同作用；并降低了物料残留在导流壁12上的概率，从而避免残留的物料变质引起储料箱10内物料整体质量下降的情况发生。
优选地，送料槽的截面呈圆弧形，且推送螺杆20与送料槽同心设置(即推送螺杆20的中心轴线与送料槽截面的中心轴线共线)，这使得推送螺杆20与送料槽的槽壁之间的距离相对较小且间隙保持上下均匀一致，且越靠上，送料槽的槽壁越陡峭(即送料槽的槽壁的斜率越大)，这非常有利于送料槽内靠上的物料自动下滑进入推送螺杆20的螺纹间隙内。因此，当储料箱10内的物料剩余量相对较少时，送料槽内的绝大部分物料甚至全部物料均能够与推送螺杆20接触，进而被推送至推送口处，从而显著降低了推送螺杆20的螺纹间出现物料空缺的概率，既提高了能耗利用率，又提高了储料箱10足量均匀下料的可靠性，且进一步降低了储料箱10内部分物料得不到及时更新而发生霉变的风险。
进一步地，储料箱10的内壁面为直面，防堵罩30靠近储料箱10的内壁面的边缘被构造成非直线型，如图6所示，使防堵罩30与储料箱10的内壁面之间形成非等宽的过料间隙50。
相较于储料箱10，防堵罩30的尺寸相对较小，因而通过对防堵罩30的形状进行改进，将其靠近储料箱10的内壁面的边缘构造成非直线型，使其与储料箱10的内壁面之间形成非等宽的过料间隙50，较容易实现，适于推广。 当然，也可以对储料箱10的形状进行改进，或者同时对储料箱10和防堵罩30的形状进行改进，以形成非等宽的过料间隙50，由于上述实施例也能够实现本申请的目的，且没有脱离本申请的设计思想和宗旨，因而均应在本申请的保护范围内。
优选地，防堵罩30靠近储料箱10的内壁面的边缘被构造成折线型，如图5和图6所示。
将防堵罩30靠近储料箱10的内壁面的边缘构造成折线型，则通过合理布置折线的长度及弯折角度等，即可方便调节各个间隙过料段的间隙宽度以及长度等尺寸；且折线形结构相较于曲线型结构，更易于加工制造。
实施例三
与实施例二的区别在于：在实施例二的基础上，进一步地，推送螺杆20的数量为两个，两个推送螺杆20同轴连接且送料方向相反，排料口11位于两个推送螺杆20之间，如图2所示，且其中一个推送螺杆20的一端与驱动装置60相连，以使两个推送螺杆20能够同步旋转并同时向排料口11处推送物料。
推送螺杆20的数量为两个，两个推送螺杆20同轴连接且送料方向相反，且排料口11位于两个推送螺杆20之间，从而形成了双向螺旋卸料系统，实现了双向螺旋送料，起到了较好的运输效果；且两个推送螺杆20只需一套驱动装置60(如电机+齿轮传动机构)即可实现同步旋转，省去了一套驱动装置60，有效简化了产品结构，节约了生产成本。
优选地，第一间隙过料段51的长度与过料间隙50的总长度之比在0.1-0.3的范围内。
将第一间隙过料段51的长度与过料间隙50的总长度(即防堵罩30的总长度)之比限定在0.1-0.3的范围内，保证了第一间隙过料段51、第二间隙过料段52及第三间隙过料段53均具有相对合适的长度，以起到有效的控制下料速度，提高物料平整度效果。当然，第一间隙过料段51的长度与过料间隙50的总长度之比不局限于上述范围，在实际生产过程中可以根据需要进行调整。
优选地，第二间隙过料段52的长度与过料间隙50的总长度之比在0.1-0.3的范围内。
将第二间隙过料段52的长度与过料间隙50的总长度(即防堵罩30的总 长度)之比限定在0.1-0.3的范围内，保证了第一间隙过料段51、第二间隙过料段52及第三间隙过料段53均具有相对合适的长度，以起到有效的控制下料速度，提高物料平整度效果。当然，第一间隙过料段51的长度与过料间隙50的总长度之比不局限于上述范围，在实际生产过程中可以根据需要进行调整。
实施例四
与上述任一实施例的区别在于：在上述任一实施例的基础上，进一步地，按照由出料部位指向远离出料部位的方向，推送螺杆20的螺旋槽的容积逐渐减小；其中，记螺旋槽的容积为V，螺旋槽与排料口11之间的距离为L，V与L满足函数关系：V＝f(L)。
本申请实施例提供的物料存储装置，通过改进推送螺杆20的结构，使其螺旋槽的容积按照由出料部位向远离出料部位的方向逐渐减小，即：以推送螺杆20推送物料的方向为基准，螺旋槽的容积由下游向上游逐渐减小，则螺旋槽能够容纳并推送的物料量由上游向下游逐渐增加，因此上游螺旋槽推送的物料量小于下游螺旋槽实际能够容纳的物料量，则下游螺旋槽上方附近的物料会自动向下落入螺旋槽中以填补不足，因而推送螺杆20推送至排料口11处的物料不仅仅只是靠近储料箱10内壁区域的物料，还有储料箱10中部区域的物料，从而实现了均匀给料，使得米箱内的物料保持水平，有效改善了物料隆起现象，提高了检测装置判断储料箱10内的实时物料量的准确性。换言之，由于螺旋槽的容积沿推送螺杆20的送料方向逐渐增加，需要储料箱10内的物料沿着送料方向不断往推送螺杆20内补充，这能够逐渐增加推送螺杆20送料方向上的物料质量流率，进而使得米粒高度整体均匀减小，保证了物料高度的一致性。
同时，由于螺旋槽的容积V由下游向上游逐渐减小，即：随着螺旋槽与排料口11之间的距离L的增加，螺旋槽的容积V逐渐减小，因而V与L负相关；且螺旋槽的容积V和螺旋槽与排料口11之间的距离L满足函数关系，这保证了V与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺旋槽的容积V的精确值，使得螺旋槽的容积V(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，有利于储料箱10底部各个部位横向输送物料和纵向重力落料的综合作用更加均衡，从而进一步提高储料箱10给料的均匀性，进一步提高储料箱10内物料的平整度；此 外，也便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以缩短设计周期，进而缩短产品的生产周期。
进一步地，按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹间距保持不变，螺旋槽的深度逐渐减小，如图9所示，记螺旋槽的深度为H，H与L满足函数关系：L＝f 1(H)。
按照由出料部位指向远离出料部位的方向，推送螺杆20的螺旋槽的深度逐渐减小，推送螺杆20的螺纹间距保持不变，即：以推送螺杆20推送物料的方向为基准，推送螺杆20的螺旋槽深度由上游向下游逐渐增加，推送螺杆20的螺纹间距由上游向下游保持不变，这一方面使得推送螺杆20的结构相对规整，相较于常规螺杆只需改变螺旋槽深度即可，便于加工成型，另一方面使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆20的螺旋槽深度H由上游向下游逐渐增加，即：随着螺旋槽与排料口11之间的距离L的减小，螺旋槽的深度H逐渐增加，因而H与L负相关；又由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，因而当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系；而螺旋槽呈圆环状，因而螺旋槽的等效横截面积与螺旋槽的深度之间满足函数关系，故而螺旋槽的深度H和螺旋槽与出料口之间的距离L也满足函数关系。这保证了H与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺旋槽的深度H的精确值，使得螺旋槽的深度H(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，由于螺旋槽的深度H是推送螺杆20更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
进一步地，由于螺旋槽的深度H等于推送螺杆20的螺纹外径(记为d1)与螺杆轴径(记为d2)之差的一半，即：H＝(d1-d2)/2，因而当螺纹外径保持不变时，螺杆轴的半径R2(R2＝d2÷2＝d1/2-H)与L也满足函数关系，由于螺杆轴的半径R2也是推送螺杆20更为直观的尺寸特征，因而也更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构；且由于H与L负相 关，因而R2与L正相关，即：随着L的增加，R2逐渐增大。
当然，由于螺旋槽的容积由螺旋槽深度和螺纹间距共同决定，故而也可以仅通过改变螺纹间距或者同时改变螺旋槽深度和螺纹间距来实现螺旋槽的容积变化，由于上述实施例均能够实现本申请的目的，且均没有脱离本申请的设计思想和宗旨，因而均应在本申请的保护范围内。在上述实施例中，按照由出料部位向远离出料部位的方向，推送螺杆20的螺杆轴径逐渐增大。
值得说明的是，由于螺旋槽是立体结构，具有一定的长度，故而一个螺旋槽沿推送螺杆20轴线方向的深度不一定是完全相同，可以存在变化，又由于螺旋槽本身的深度不会相差过大，且该实施例中螺纹间距保持不变，即各个螺旋槽的长度相同，因而可以定义各个螺纹槽相同部位处的深度为该螺旋槽的深度(比如定义螺纹槽上游端的深度、或者螺旋槽下游端的深度或者螺旋槽正中处的深度)，这样，既能够相对准确地保证螺旋槽的等效横截面积随着与排料口11的间距大小发生相应变化，又能够限制降低推送螺杆20的设计难度。
具体地，H与L满足一次函数关系：L＝k×H+C或者H＝k×L+C，其中，k和C为常数，且k不等于0。
L＝k×H+C或者H＝k×L+C，即：H与L满足一次函数关系，则H随着L线性变化，这使得推送螺杆20的结构较为规整，便于加工成型。
可以理解的是，由于L＞0，H＞0，且L与H负相关，因而常数k＜0，常数C＞0。
进一步地，推送螺杆20包括：第一螺杆、第二螺杆和连接轴，如图8至图14所示。其中，第一螺杆的一端连接至储料箱10的一侧内壁，其另一端临近排料口11设置；第二螺杆与第一螺杆共轴设置，且与第一螺杆的螺纹设置方向相反，其一端连接至储料箱10的另一侧内壁，其另一端临近排料口11设置；连接轴对应设置在排料口11的上方，分别固定连接至第一螺杆的另一端与第二螺杆的另一端，以使第一螺杆与第二螺杆同步旋转。
推送螺杆20由第一螺杆、连接轴以及第二螺杆依次固定连接形成，则连接轴所在的区域即为推送螺杆20的出料部位，便于将推送螺杆20的出料部位及储料箱10的排料口11设置在中间区域，进一步提高给料均匀性；并且第一螺杆与第二螺杆设置有反向的螺纹，使得第一螺杆和第二螺杆可以共用同一驱 动装置60驱动，且在旋转过程中能够分别同步将外侧端的物料推送至排料口11，有效节省电机用量，精简产品组成部件，降低产品成本；且形成了双向螺旋卸料系统，相对于传统米仓通过斜度利用重力实现物料外排的方案而言，可以实现储料箱10内的物料无局部残留，从而避免残留的物料变质引起储料箱10内物料整体质量下降的问题；此外，通过利用推料螺杆将位于储料箱10内底部位置处的物料推至排料口11处进行外排，可以优先将位于储料箱10底部的保存时间较长的物料排出，如此实现根据时间顺序对储料箱10内的物料进行更新，提升储料箱10内物料的整体质量。其中，第一螺杆、第二螺杆与连接轴可以通过固定组装生成，也可以通过一体成型的方式制成。
实施例五
与实施例四的区别在于：H与L满足二次函数关系：L＝a×H 2+b×H+c或者H＝a×L 2+b×L+c，其中，a、b和c为常数，且a不等于0。
L＝a×H 2+b×H+c或者H＝a×L 2+b×L+c，即：H与L满足二次函数关系，则H随着L非线性变化。如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系，螺旋槽的等效横截面积与螺旋槽的深度的平方H 2之间满足一次函数关系，故而螺旋槽的深度的平方H 2和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，H与L满足L＝a×H 2+b×H+c的二次函数关系，更加准确，更有利于均匀给料；当V与L 4满足一次函数关系时，H与L满足H＝a×L 2+b×L+c的二次函数关系，更加准确，更有利于均匀给料。
可以理解的是，由于H＞0，L＞0，且H与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
实施例六
与实施例四的区别在于：H与L满足三次函数关系：L＝a×H 3+b×H 2+c×H+d或者L＝a×H 3+b×H 2+c×H+d，其中，a、b、c和d为常数，且a不等于0。
L＝a×H 3+b×H 2+c×H+d或者H＝a×L 3+b×L 2+c×L+d，即：H与L满足三次函数关系，则H也随着L非线性变化，也实现了H与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，H＞0，且L与H负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
值得说明的是，由于不同储料箱10的具体结构和材质存在差别，储料箱10内盛装的物料的种类也多种多样，因而储料箱10内各处对物料的阻力也存在差别。故而，影响储料箱10内各个部位的下料速度的因素也不尽相同，故而V与L可能满足一次函数关系，也可能满足二次函数关系、三次函数关系、四次函数等关系等，且具体的函数关系也可能不同。因而推送螺杆20的具体形状也不局限于上述函数关系的限定，在实际生产过程中可以根据具体产品合理设计，且上述函数中各个常数的具体数值也可以根据具体产品进行调整。
实施例七
与实施例四的区别在于：按照由出料部位指向远离出料部位的方向，螺旋槽的螺纹深度保持不变，推送螺杆20的螺纹间距逐渐减小，记推送螺杆20的螺纹间距为S，S与L满足函数关系：S＝f 2(L)。
按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹深度保持不便，螺纹间距逐渐减小，即：以推送螺杆20推送物料的方向为基准，螺纹间距由下游向上游逐渐减小，而螺旋槽深度保持不变，这样确保了螺旋槽的容积由上游向下游逐渐增加，进而实现均匀给料的目的；同时，该方案使得推送螺杆20的结构相对规整，便于加工成型，并使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆20的螺纹间距S由下游向上游逐渐减小，即：随着螺旋槽与排料口11之间的距离L的增加，螺纹间距S逐渐减小，因而S与L负相关；又如前所述，由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，当螺旋槽的深度保持不变时，螺旋槽的等效横截面积保持不变，因而螺旋槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和螺旋槽与出料口之间的距离L也满足函数关系。这保证了S与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺纹间距S的精确值，使得螺纹间距S(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得 到精确控制，由于螺纹间距S是推送螺杆20更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
具体地，S与L满足一次函数关系：S＝k×L+C，其中，k和C为常数，且k不等于0。
S＝k×L+C，即：S与L满足一次函数关系，则S随着L线性变化，这使得推送螺杆20的结构较为规整，便于加工成型。此外，如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺旋槽的深度保持不变时，螺纹槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，S与L满足一次函数关系，更加准确，更有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数k＜0，常数C＞0。
实施例八
与实施例七的区别在于：S与L满足二次函数关系：S＝a×L 2+b×L+c，其中，a、b和c为常数，且a不等于0。
S＝a×L 2+b×L+c，即：S与L满足三次函数关系，则S随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
实施例九
与实施例七的区别在于：S与L满足三次函数关系：S＝a×L 3+b×L 2+c×L+d，其中，a、b、c和d为常数，且a不等于0。
S＝a×L 3+b×L 2+c×L+d，即：S与L满足三次函数关系，则S也随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
实施例十
与实施例五的区别在于：推送螺杆20的数量为一个，排料口11靠近储料箱10的边缘部位。
实施例十一
与实施例七的区别在于：推送螺杆20的数量为一个，排料口11靠近储料箱10的边缘部位。
在实施例十和实施例十一中，只设置一个推送螺杆20，相应地，排料口11临近储料箱10的边缘部位，在提高给料均匀性的基础上，精简了部件数量，简化了产品结构，有利于节约生产成本。在本申请的另一些实施例中，推送螺杆20的数量为多个，多个推送螺杆20以排料口11为中心呈放射状布置在排料口11的外侧。
通过设置多个推送螺杆20，多个推送螺杆20以排料口11为中心呈放射状布置在排料口11的外侧，则多个推送螺杆20能够同时推送储料箱10多个部位的物料，进而显著提高了给料速度。
在上述任一实施例中，按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹外径保持不变，如图9至图14所示。
螺纹外径保持不变，使得推送螺杆20的结构较为规整，便于加工成型，也便于安装，降低了对储料箱10的形状要求，便于安装；且推送螺杆20与储料箱10的内壁面之间的距离可以保持不变，进而保证物料的下料速度基本均匀。进一步地，对于上述螺纹间距保持不变螺旋槽深度发生变化的方案而言，只需改变螺杆轴径即可；对于上述螺旋槽深度保持不变螺纹间距发生变化的方案而言，只需改变螺纹位置即可。
在上述任一实施例中，物料存储装置还包括：输送叶轮40，设置在储料箱10的底部，并与排料口11相对应，用于把上方的物料向下输送至排料口11处，如图8至图14所示。
物料存储装置还包括输送叶轮40，输送叶轮40能够将其上方的物料通过叶片旋转传递到下方，进而通过排料口11排出，从而实现了储料箱10的纵向排料，与单独设置推送螺杆20的结构相比，输送效率更高，并且能够通过螺杆转动的速度和转动圈数精准控制物料输送量；且输送叶轮40位于排料口11的正上方，因而能够促进排料口11上方附近的物料输出，从而进一步缓解储 料箱10中部区域物料隆起的现象，进一步提高给料均匀性。
进一步地，输送叶轮40可以与推送螺杆20同轴连接，这样可以与推送螺杆20通过同一驱动装置60实现联动式控制，当然也可以与推送螺杆20采用不同的驱动装置60分别控制。优选地，输送叶轮40套装在第一螺杆与第二螺杆之间的连接轴上。
在上述任一实施例中，物料存储装置还包括：弧形物料输送腔80，如图7和图8所示，由向下开口的弧面与下方的平面围合形成，排料口11平滑延伸至弧面上，以使弧形物料输送腔80通过排料口11与储料箱10导通。
弧形物料输送腔80由向下开口的弧面与下方的平面围合形成，设置于储料箱10底部的排料口11平滑延伸至弧面上，则通过推送螺杆20以及输送叶轮40输送至排料口11的物料会导入弧形物料输送腔80内，通过在弧形物料输送腔80的一端设置风机，在另一端开设开口，并与进料管连通，能够使进入弧形物料输送腔80内的物料在风机的驱动力导入进料管，进而排到物料清洗装置内，执行物料清洗操作。
在上述任一实施例中，物料存储装置还包括：驱动装置60，如图7所示，与推送螺杆20对应连接，用于驱动推送螺杆20旋转。
在该实施例中，通过设置驱动装置60，实现了推送螺杆20的可控式自动旋转，可以根据输送的物料的量确定输送速度，从而有利于提升输送效率。
具体地，驱动装置60包括电机，电机的输出轴与推送螺杆20同轴连接；或者，驱动装置60包括电机和与电机的输出轴相连的齿轮传动机构，齿轮传动机构与推送螺杆20相连接。
驱动装置60包括电机，电机的输出轴与推送螺杆20同轴连接，即：电机直接带动推送螺杆20旋转，动力传递效率高，且所需的零部件数量较少，简化了产品结构，有利于节约成本。
或者，驱动装置60包括电机和齿轮传动机构，齿轮传动机构与推送螺杆20相连接，即：电机通过齿轮传动机构间接带动推送螺杆20旋转，齿轮传动机构可以实现增速效果，有利于减小电机能耗，且便于根据产品结构合理布局电机的位置。
进一步地，对于前述实施例中推送螺杆20包括第一螺杆、第二螺杆和连 接轴的实施例而言，电机或者齿轮传递机构与第一螺杆或者第二螺杆相连；对于推送螺杆20的数量为多个的实施例而言，驱动装置60的数量也为多个，分别驱动各个推送螺杆20。
本申请第二方面的实施例提供了一种烹饪器具，包括：烹饪主体和如第一方面实施例中任一项的物料存储装置，其排料口11能够与烹饪主体的内部空间相连通。
本申请第二方面的实施例提供的烹饪器具，因包括第一方面实施例中任一项的物料存储装置，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
至于烹饪主体的内部空间，不受具体限制，比如：可以是上盖内的清洗腔体，物料送入清洗腔体内进行清洗；也可以是内锅，物料送入内锅中进行清洗或者烹饪。
具体地，储料箱10下方设有送料机构70，如与排料口11相连通的中转腔体和与中转腔体相连通的输料管，储料箱10内的物料先排入中转腔体内，然后在风力等动力的驱动下输送至烹饪主体的内部空间。
在上述任一实施例中，烹饪器具为电饭煲。
当然，不局限于电饭煲，也可以为电压力锅、电蒸锅、电煮锅、豆浆机等。
下面结合一些具体实施例来详细描述本申请提供的烹饪器具的具体结构及工作原理，并与现有技术进行对比。
一种全自动电饭煲，设计了一种高容积率米箱，底部设有螺旋给料装置(即两个推送螺杆20)，高容积率米箱通过底部的双向螺旋卸料系统代替传统米仓通过斜度自动下米的功能。工作状态下，电机驱动螺杆转动，带动两端螺旋结构将两侧米粒搬运至中间，然后经由底部中间位置的卸料口(即排料口11)卸出。由于螺旋结构紧贴米仓底部，即使米量较少时也能达到较好的运输效果。在米箱的双向螺旋下米系统中，易出现米箱内不平整的现象，导致不能通过传感器精准判断米仓实时米量。
本申请通过调整防堵罩30的形状，实现调整防堵罩30与米箱底部侧壁的间距，从而控制米箱不同部位的下米速度，到达在下米过程米箱内的米保持平整的效果。
具体地，本申请涉及一种米箱及下米结构，如图1所示，主要由米箱(即储料箱10)、送米机构和电机组成。在米箱的底部设有双向螺旋的螺杆，螺杆的一端与电机相连，可以是直接与电机输出轴连接，也可以通过齿轮连接；在螺杆中间设有叶片。在螺杆上方设有防堵罩30，防堵罩30可以起到防止大颗粒物体进入到送米机构的管道中，还可以起到调节下米量的作用，达到米箱内的米在整个下米过程中保持平整的效果。
米箱及下米结构的剖面图如图2和图3所示，11为下米口，20为双向螺旋螺杆，40为旋转叶片(即输送叶轮40)，30为防堵罩，12为米箱底部侧壁(即导流壁12)。
其中，防堵罩30与米箱底部侧壁之间具有一定的间距D，如图4所示，D的取值范围为5-10mm；防堵罩30与米箱底部侧壁的间距为非等距，即防堵罩30与米箱底部侧壁对应的边为非直线型，图5所示为其中的一种示意图。
该种防堵罩30与米箱底部侧壁间距的示意图如图6所示，在防堵罩30两端，防堵罩30与米箱底部侧壁的间距D0(即第一间隙过料段51的宽度)较小，该部分长度各占防堵罩30总长度10％～30％；在防堵罩30端部与长度方向中心点之间的中间部位的间距D1(即第二间隙过料段52的宽度)比较大，即D1>D0，该部分长度占防堵罩30总长度10％～30％。
当电机带动旋转叶片顺时针旋转时，旋转叶片对应位置处的防堵罩30左边与米箱底部侧壁的间距D2(即推料间隙过料段的宽度)较小，且D2＝D0，旋转叶片对应位置处的防堵罩30右边与米箱底部侧壁的间距D2(即下料间隙过料段的宽度)较大，且D2＝D1>D0；当电机带动旋转叶片逆时针旋转时，旋转叶片对应位置处的防堵罩30右边边与米箱底部侧壁的间距D2(即推料间隙过料段的宽度)较小，且D2＝D0，旋转叶片对应位置处的防堵罩30左边与米箱底部侧壁的间距D2(即下料间隙过料段的宽度)较大，且D2＝D1>D0。
工作时，电机转动，米箱内的米从防堵罩30与米箱底部侧壁间的间隙进入到底部，螺杆将两侧米向中间推动，米通过旋转叶片从米箱底部的下米口(即排料口11)进入送米机构。在双向螺旋卸料系统中，易出现米箱两侧米量迅速下降，中间隆起的现象，导致不能通过传感器精准判断米仓实时米量。
米箱内的米在下米过程中，通过双向螺旋螺杆将米箱两侧的米向中间推 动，在螺杆上方设有防堵罩30，一方面可以实现防止大颗粒物体进度到输送管道内而出现卡机现象；另外一方面，调整防堵罩30的形状可实现调整其与米箱底部侧壁的间隙，在下米较快的部位其间隙较小，在下米较慢的部位其间隙较大，从而实现均匀下米，使得米箱内的米保持水平。其具体原理如下：
由于在下米过程中，通过双向螺旋螺杆将米箱两侧的米向中间推动，在米箱两侧(即第一间隙过料段51所在位置)，在螺杆的长度方向没有米的补充，只有正上方米的补充，即米箱该部位下米速度较快，因此，在防堵罩30两端，其与米箱底部侧壁的间距较小；在防堵罩30端部与长度方向中心点之间的中间部位(即第二间隙过料段52所在部位)，会有从米箱两侧推动过来的米进行补充，其对应位置处米箱的下米速度较慢，因此，该部位防堵罩30与米箱底部侧壁的间距较大。
如图4所示，当电机带动旋转叶片顺时针旋转时，在旋转叶片对应位置处，左侧的米进入到旋转叶片的凹槽并被带到右侧，造成该部位米箱的下米速度较快，因此，该部位防堵罩30左侧与米箱底部侧壁的间距较小；由于左侧的米被旋转叶片带到右侧，导致该部位上方米箱的下米速度较慢，因此，该部位防堵罩30右侧与米箱底部侧壁的间距较大。
电机带动旋转叶片逆时针旋转时，在旋转叶片对应位置处，右侧的米进入到旋转叶片的凹槽并被带到左侧，造成该部位米箱的下米速度较快，因此，该部位防堵罩30右侧与米箱底部侧壁的间距较小；由于右侧的米被旋转叶片带到左侧，导致该部位上方米箱的下米速度较慢，因此，该部位防堵罩30左侧与米箱底部侧壁的间距较大。
在另一些具体实施例中，进一步根据螺杆输运的特点，设计了等径等距不等深及等径等深不等距两种螺杆结构，满足均匀输送物料的要求。
具体地，本申请设计的一种米箱及下米结构，如图7所示，在螺杆中间设有叶片，与螺杆采用同轴传动，叶片两端的螺杆螺旋方向相反。
米箱及下米结构的剖面图，如图8所示，11为下米口(即排料口)，12为双向螺旋螺杆，一端为左旋，一端为右旋，螺旋方向相反；13为叶片(即输送叶轮)，米箱两端的螺杆与叶片采用同轴传动，总体效果保证米粒往中间运输。
工作时，电机带动螺杆旋转，将米箱两侧的米粒往中间运输，达到中间的米粒通过叶片翻转从米箱底部的下米口进入送米机构。传统螺杆采用等距、等径、螺槽等深方式设计，工作过程中，只有螺杆与米箱接触的端部会有米粒填充输运，其余螺杆部分米粒无法填充，导致米粒不平整。
根据螺杆输运的性质，提出了以下两种设计方案。
设计一：
螺杆直径(即螺纹外径)d1、螺距(即螺纹间距)S维持不变，螺杆槽半径(即螺杆轴半径)R2与离叶片的间距(即螺旋槽与排料口的间距)L可采用线性变化，L＝k×R2+C，如图9所示；或者采用非线性变化，L＝a×R2 2+b×R2+c，或L＝a×R2 3+b×R2 2+c×R2+d，如图10所示，呈现靠近叶片位置的螺杆槽直径小于两边的螺杆槽直径。在螺杆螺距、直径维持不变，螺杆输运量与螺杆输运的横截面积成正比例线性关系，也就是与螺杆槽的深度成平方关系，每旋转一周，向前输运量等于一个螺距内包含的物料量,因此在米箱各处对物料阻力相同的条件下，推荐使用L＝a×R2 2+b×R2+c的方案，如果米箱不同位置对物料的阻力不同，需要根据阻力分布采用线性或非线性方案。
换言之，螺杆采用等径、等距螺杆，螺槽深度的直径为线性或非线性变化，靠近螺杆中间位置的螺杆槽直径小于米箱两边的螺杆槽直径，通过螺槽深度的线性或非线性变化，逐渐增加螺杆输运方向上的米粒质量流率，也就是米箱的米粒整体均匀减少，保证米粒高度的一致性。
设计二：
螺杆直径d1(即螺纹外径)、螺槽深度H维持不变，螺距S可采用线性或非线性变化，使与离叶片的间距L为线性变化，如图11所示；或者非线性变化，S＝a×L 2+b×L+c，或S＝a×L 3+b×L 2+c×L+d，如图12所示，呈现靠近叶片位置的螺距大于米箱两边的螺距。在螺杆直径、螺槽深度维持不变的条件下，螺杆输运量与螺杆螺距成正比例线性关系，每旋转一周，向前输运量等于一个螺距内包含的物料量，因此在米箱各处对物料阻力相同的条件下，推荐使用S＝k×L+C的方案，如果米箱不同位置对物料的阻力不同，需要根据阻力分布采用其他线性或非线性方案。
换言之，螺杆采用等径等深螺杆，螺距为线性或非线性变化，靠近螺杆中 间位置的螺距大于米箱两边的螺距，通过螺距的线性或非线性变化，逐渐增加螺杆输运方向上的米粒质量流率，也就是米箱的米粒整体均匀减少，保证米粒高度的一致性。
其中，根据螺杆输运特性，设计一将螺杆设计为等径、等距，螺槽深度线性或非线性变化结构，并且靠近叶片位置的螺杆槽直径小于米箱两边的螺杆槽直径。螺杆在旋转输运物料过程中，由于螺槽深度的线性或非线性变化，导致螺杆沿着输运方向米粒质量流率逐渐增加，需要米箱内的米粒沿着输运方向不断往螺杆内补充，使得米粒高度整体均匀减少，保证了米粒高度的一致性。
设计二将螺杆设计为等径等深，螺距线性或非线性变化结构，靠近叶片中间位置的螺距大于米箱两边的螺距。螺杆在旋转输运物料过程中，由于螺距的线性或非线性变化，导致螺杆沿着输运方向米粒质量流率逐渐增加，需要米箱内的米粒沿着输运方向不断往螺杆内补充，使得米粒高度整体均匀减少，保证了米粒高度的一致性。
进一步地，上述实施例还可以做以下变形，也能够实现本申请的目的：
单向螺旋(右旋或左旋)采用等距等径，螺槽深度为线性或非线性变化，集中往一端运输，保证输运物料沿输运长度均匀下降，如图13所示；单向螺旋(右旋或左旋)采用等径等深，间距为线性或非线性变化，集中往一端运输，保证输运物料沿输运长度均匀下降，如图14所示；螺旋槽深度变化与螺杆轴直径变化效果等同，都相当于改变输运面积。
综上所述，本申请提供的物料存储装置，通过设置防堵罩，利用防堵罩与储料箱的内壁面之间的过料间隙来对大颗粒物料进行过滤，从而能够防止大颗粒粮食误入导致输料管堵塞或者卡机现象；同时，通过合理设置过料间隙的宽度，还能够调节储料箱内各个部位的下料量，进而控制储料箱各个部位的下料速度，使各个部位的下料速度趋于一致，进而使得储料箱内的物料趋于平整，从而提高了通过传感器来检测储料箱内的实时物料量的准确度。
如图7和图8所示，本申请第三方面的实施例提供了一种物料存储装置，包括：储料箱10和推送螺杆20。
具体地，储料箱10开设有用于输出物料的排料口11；推送螺杆20设置于储料箱10的底部，推送螺杆20的出料部位临近排料口11，能够在旋转时 沿其轴向将物料推送至排料口11处，且按照由出料部位指向远离出料部位的方向，推送螺杆20的螺旋槽的容积逐渐减小；其中，记螺旋槽的容积为V，螺旋槽与排料口11之间的距离为L，V与L满足函数关系：V＝f(L)。
本申请第三方面的实施例提供的物料存储装置，通过改进推送螺杆20的结构，使其螺旋槽的容积按照由出料部位向远离出料部位的方向逐渐减小，即：以推送螺杆20推送物料的方向为基准，螺旋槽的容积由下游向上游逐渐减小，则螺旋槽能够容纳并推送的物料量由上游向下游逐渐增加，因此上游螺旋槽推送的物料量小于下游螺旋槽实际能够容纳的物料量，则下游螺旋槽上方附近的物料会自动向下落入螺旋槽中以填补不足，因而推送螺杆20推送至排料口11处的物料不仅仅只是靠近储料箱10内壁区域的物料，还有储料箱10中部区域的物料，从而实现了均匀给料，使得米箱内的物料保持水平，有效改善了物料隆起现象，提高了检测装置判断储料箱10内的实时物料量的准确性。换言之，由于螺旋槽的容积沿推送螺杆20的送料方向逐渐增加，需要储料箱10内的物料沿着送料方向不断往推送螺杆20内补充，这能够逐渐增加推送螺杆20送料方向上的物料质量流率，进而使得米粒高度整体均匀减小，保证了物料高度的一致性。
同时，由于螺旋槽的容积V由下游向上游逐渐减小，即：随着螺旋槽与排料口11之间的距离L的增加，螺旋槽的容积V逐渐减小，因而V与L负相关；且螺旋槽的容积V和螺旋槽与排料口11之间的距离L满足函数关系，这保证了V与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺旋槽的容积V的精确值，使得螺旋槽的容积V(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，有利于储料箱10底部各个部位横向输送物料和纵向重力落料的综合作用更加均衡，从而进一步提高储料箱10给料的均匀性，进一步提高储料箱10内物料的平整度；此外，也便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以缩短设计周期，进而缩短产品的生产周期。
下面结合一些实施例来详细描述本申请提供的物料存储装置的具体结构。
实施例一
按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹间距保持 不变，螺旋槽的深度逐渐减小，如图9所示，记螺旋槽的深度为H，H与L满足函数关系：L＝f 1(H)。
按照由出料部位指向远离出料部位的方向，推送螺杆20的螺旋槽的深度逐渐减小，推送螺杆20的螺纹间距保持不变，即：以推送螺杆20推送物料的方向为基准，推送螺杆20的螺旋槽深度由上游向下游逐渐增加，推送螺杆20的螺纹间距由上游向下游保持不变，这一方面使得推送螺杆20的结构相对规整，相较于常规螺杆只需改变螺旋槽深度即可，便于加工成型，另一方面使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆20的螺旋槽深度H由上游向下游逐渐增加，即：随着螺旋槽与排料口11之间的距离L的减小，螺旋槽的深度H逐渐增加，因而H与L负相关；又由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，因而当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系；而螺旋槽呈圆环状，因而螺旋槽的等效横截面积与螺旋槽的深度之间满足函数关系，故而螺旋槽的深度H和螺旋槽与出料口之间的距离L也满足函数关系。这保证了H与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺旋槽的深度H的精确值，使得螺旋槽的深度H(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，由于螺旋槽的深度H是推送螺杆20更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
进一步地，由于螺旋槽的深度H等于推送螺杆20的螺纹外径(记为d1)与螺杆轴径(记为d2)之差的一半，即：H＝(d1-d2)/2，因而当螺纹外径保持不变时，螺杆轴的半径R2(R2＝d2÷2＝d1/2-H)与L也满足函数关系，由于螺杆轴的半径R2也是推送螺杆20更为直观的尺寸特征，因而也更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构；且由于H与L负相关，因而R2与L正相关，即：随着L的增加，R2逐渐增大。
当然，由于螺旋槽的容积由螺旋槽深度和螺纹间距共同决定，故而也可以仅通过改变螺纹间距或者同时改变螺旋槽深度和螺纹间距来实现螺旋槽的容 积变化，由于上述实施例均能够实现本申请的目的，且均没有脱离本申请的设计思想和宗旨，因而均应在本申请的保护范围内。在上述实施例中，按照由出料部位向远离出料部位的方向，推送螺杆20的螺杆轴径逐渐增大。
值得说明的是，由于螺旋槽是立体结构，具有一定的长度，故而一个螺旋槽沿推送螺杆20轴线方向的深度不一定是完全相同，可以存在变化，又由于螺旋槽本身的深度不会相差过大，且该实施例中螺纹间距保持不变，即各个螺旋槽的长度相同，因而可以定义各个螺纹槽相同部位处的深度为该螺旋槽的深度(比如定义螺纹槽上游端的深度、或者螺旋槽下游端的深度或者螺旋槽正中处的深度)，这样，既能够相对准确地保证螺旋槽的等效横截面积随着与排料口11的间距大小发生相应变化，又能够限制降低推送螺杆20的设计难度。
具体地，H与L满足一次函数关系：L＝k×H+C或者H＝k×L+C，其中，k和C为常数，且k不等于0。
L＝k×H+C或者H＝k×L+C，即：H与L满足一次函数关系，则H随着L线性变化，这使得推送螺杆20的结构较为规整，便于加工成型。
可以理解的是，由于L＞0，H＞0，且L与H负相关，因而常数k＜0，常数C＞0。
进一步地，推送螺杆20包括：第一螺杆、第二螺杆和连接轴，如图8至图14所示。其中，第一螺杆的一端连接至储料箱10的一侧内壁，其另一端临近排料口11设置；第二螺杆与第一螺杆共轴设置，且与第一螺杆的螺纹设置方向相反，其一端连接至储料箱10的另一侧内壁，其另一端临近排料口11设置；连接轴对应设置在排料口11的上方，分别固定连接至第一螺杆的另一端与第二螺杆的另一端，以使第一螺杆与第二螺杆同步旋转。
推送螺杆20由第一螺杆、连接轴以及第二螺杆依次固定连接形成，则连接轴所在的区域即为推送螺杆20的出料部位，便于将推送螺杆20的出料部位及储料箱10的排料口11设置在中间区域，进一步提高给料均匀性；并且第一螺杆与第二螺杆设置有反向的螺纹，使得第一螺杆和第二螺杆可以共用同一驱动装置60驱动，且在旋转过程中能够分别同步将外侧端的物料推送至排料口11，有效节省电机用量，精简产品组成部件，降低产品成本；且形成了双向螺旋卸料系统，相对于传统米仓通过斜度利用重力实现物料外排的方案而言，可 以实现储料箱10内的物料无局部残留，从而避免残留的物料变质引起储料箱10内物料整体质量下降的问题；此外，通过利用推料螺杆将位于储料箱10内底部位置处的物料推至排料口11处进行外排，可以优先将位于储料箱10底部的保存时间较长的物料排出，如此实现根据时间顺序对储料箱10内的物料进行更新，提升储料箱10内物料的整体质量。其中，第一螺杆、第二螺杆与连接轴可以通过固定组装生成，也可以通过一体成型的方式制成。
实施例二
与实施例一的区别在于：H与L满足二次函数关系：L＝a×H 2+b×H+c或者H＝a×L 2+b×L+c，其中，a、b和c为常数，且a不等于0。
L＝a×H 2+b×H+c或者H＝a×L 2+b×L+c，即：H与L满足二次函数关系，则H随着L非线性变化。如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺纹间距保持不变时，螺旋槽的容积与螺旋槽的等效横截面积之间满足一次函数关系，螺旋槽的等效横截面积与螺旋槽的深度的平方H 2之间满足一次函数关系，故而螺旋槽的深度的平方H 2和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，H与L满足L＝a×H 2+b×H+c的二次函数关系，更加准确，更有利于均匀给料；当V与L 4满足一次函数关系时，H与L满足H＝a×L 2+b×L+c的二次函数关系，更加准确，更有利于均匀给料。
可以理解的是，由于H＞0，L＞0，且H与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
实施例三
与实施例一的区别在于：H与L满足三次函数关系：L＝a×H 3+b×H 2+c×H+d或者L＝a×H 3+b×H 2+c×H+d，其中，a、b、c和d为常数，且a不等于0。
L＝a×H 3+b×H 2+c×H+d或者H＝a×L 3+b×L 2+c×L+d，即：H与L满足三次函数关系，则H也随着L非线性变化，也实现了H与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，H＞0，且L与H负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
值得说明的是，由于不同储料箱10的具体结构和材质存在差别，储料箱10内盛装的物料的种类也多种多样，因而储料箱10内各处对物料的阻力也存在差别。故而，影响储料箱10内各个部位的下料速度的因素也不尽相同，故而V与L可能满足一次函数关系，也可能满足二次函数关系、三次函数关系、四次函数等关系等，且具体的函数关系也可能不同。因而推送螺杆20的具体形状也不局限于上述函数关系的限定，在实际生产过程中可以根据具体产品合理设计，且上述函数中各个常数的具体数值也可以根据具体产品进行调整。
实施例四
按照由出料部位指向远离出料部位的方向，螺旋槽的螺纹深度保持不变，推送螺杆20的螺纹间距逐渐减小，记推送螺杆20的螺纹间距为S，S与L满足函数关系：S＝f 2(L)。
按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹深度保持不便，螺纹间距逐渐减小，即：以推送螺杆20推送物料的方向为基准，螺纹间距由下游向上游逐渐减小，而螺旋槽深度保持不变，这样确保了螺旋槽的容积由上游向下游逐渐增加，进而实现均匀给料的目的；同时，该方案使得推送螺杆20的结构相对规整，便于加工成型，并使得各螺旋槽的容积能够形成梯度变化，不至于因螺纹间距和螺旋槽深度同时变化而产生过大差别或者不易控制，从而进一步提高了给料的均匀性。
其中，由于推送螺杆20的螺纹间距S由下游向上游逐渐减小，即：随着螺旋槽与排料口11之间的距离L的增加，螺纹间距S逐渐减小，因而S与L负相关；又如前所述，由于螺旋槽的容积等于螺旋槽的等效横截面积乘以螺纹间距，当螺旋槽的深度保持不变时，螺旋槽的等效横截面积保持不变，因而螺旋槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和螺旋槽与出料口之间的距离L也满足函数关系。这保证了S与L的准确对应，因而只要确定了螺旋槽与排料口11之间的距离L，即可得到螺纹间距S的精确值，使得螺纹间距S(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，由于螺纹间距S是推送螺杆20更为直观的尺寸特征，因而更加便于设计人员根据函数关系快速设计出推送螺杆20的具体结构，以进一步缩短设计周期，进而进一步缩短产品的生产周期。
具体地，S与L满足一次函数关系：S＝k×L+C，其中，k和C为常数，且k不等于0。
S＝k×L+C，即：S与L满足一次函数关系，则S随着L线性变化，这使得推送螺杆20的结构较为规整，便于加工成型。此外，如前所述，螺旋槽的容积V与L满足函数关系V＝f(L)，当螺旋槽的深度保持不变时，螺纹槽的容积与螺纹间距之间满足一次函数关系，故而螺纹间距S和和螺旋槽与出料口之间的距离L满足函数关系。因此，当V与L满足一次函数关系时，S与L满足一次函数关系，更加准确，更有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数k＜0，常数C＞0。
实施例五
与实施例四的区别在于：S与L满足二次函数关系：S＝a×L 2+b×L+c，其中，a、b和c为常数，且a不等于0。
S＝a×L 2+b×L+c，即：S与L满足三次函数关系，则S随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，因而常数a＜0，常数c＞0，常数b的大小不受限制。
实施例六
与实施例四的区别在于：S与L满足三次函数关系：S＝a×L 3+b×L 2+c×L+d，其中，a、b、c和d为常数，且a不等于0。
S＝a×L 3+b×L 2+c×L+d，即：S与L满足三次函数关系，则S也随着L非线性变化，也实现了S与L的准确对应变化，也有利于均匀给料。
可以理解的是，由于L＞0，S＞0，且S与L负相关，而三次函数的图像变化较多，因而只要该函数在直角坐标系的第一象限中存在单调下降的部分即可，至于常数a、b、c、d的大小则不受具体限制。
实施例七
与实施例二的区别在于：推送螺杆20的数量为一个，排料口11靠近储料箱10的边缘部位。
实施例八
与实施例四的区别在于：推送螺杆20的数量为一个，排料口11靠近储料箱10的边缘部位。
在实施例七和实施例八中，只设置一个推送螺杆20，相应地，排料口11临近储料箱10的边缘部位，在提高给料均匀性的基础上，精简了部件数量，简化了产品结构，有利于节约生产成本。在本申请的另一些实施例中，推送螺杆20的数量为多个，多个推送螺杆20以排料口11为中心呈放射状布置在排料口11的外侧。
通过设置多个推送螺杆20，多个推送螺杆20以排料口11为中心呈放射状布置在排料口11的外侧，则多个推送螺杆20能够同时推送储料箱10多个部位的物料，进而显著提高了给料速度。
在上述任一实施例中，按照由出料部位指向远离出料部位的方向，推送螺杆20的螺纹外径保持不变，如图9至图14所示。
螺纹外径保持不变，使得推送螺杆20的结构较为规整，便于加工成型，也便于安装，降低了对储料箱10的形状要求，便于安装；且推送螺杆20与储料箱10的内壁面之间的距离可以保持不变，进而保证物料的下料速度基本均匀。进一步地，对于上述螺纹间距保持不变螺旋槽深度发生变化的方案而言，只需改变螺杆轴径即可；对于上述螺旋槽深度保持不变螺纹间距发生变化的方案而言，只需改变螺纹位置即可。
在上述任一实施例中，物料存储装置还包括：输送叶轮40，设置在储料箱10的底部，并与排料口11相对应，用于把上方的物料向下输送至排料口11处，如图8至图14所示。
物料存储装置还包括输送叶轮40，输送叶轮40能够将其上方的物料通过叶片旋转传递到下方，进而通过排料口11排出，从而实现了储料箱10的纵向排料，与单独设置推送螺杆20的结构相比，输送效率更高，并且能够通过螺杆转动的速度和转动圈数精准控制物料输送量；且输送叶轮40位于排料口11的正上方，因而能够促进排料口11上方附近的物料输出，从而进一步缓解储料箱10中部区域物料隆起的现象，进一步提高给料均匀性。
进一步地，输送叶轮40可以与推送螺杆20同轴连接，这样可以与推送螺杆20通过同一驱动装置60实现联动式控制，当然也可以与推送螺杆20采用 不同的驱动装置60分别控制。优选地，输送叶轮40套装在第一螺杆与第二螺杆之间的连接轴上。
在上述任一实施例中，物料存储装置还包括：弧形物料输送腔80，如图7和图8所示，由向下开口的弧面与下方的平面围合形成，排料口11平滑延伸至弧面上，以使弧形物料输送腔80通过排料口11与储料箱10导通。
弧形物料输送腔80由向下开口的弧面与下方的平面围合形成，设置于储料箱10底部的排料口11平滑延伸至弧面上，则通过推送螺杆20以及输送叶轮40输送至排料口11的物料会导入弧形物料输送腔80内，通过在弧形物料输送腔80的一端设置风机，在另一端开设开口，并与进料管连通，能够使进入弧形物料输送腔80内的物料在风机的驱动力导入进料管，进而排到物料清洗装置内，执行物料清洗操作。
在上述任一实施例中，物料存储装置还包括：驱动装置60，如图7所示，与推送螺杆20对应连接，用于驱动推送螺杆20旋转。
在该实施例中，通过设置驱动装置60，实现了推送螺杆20的可控式自动旋转，可以根据输送的物料的量确定输送速度，从而有利于提升输送效率。
具体地，驱动装置60包括电机，电机的输出轴与推送螺杆20同轴连接；或者，驱动装置60包括电机和与电机的输出轴相连的齿轮传动机构，齿轮传动机构与推送螺杆20相连接。
驱动装置60包括电机，电机的输出轴与推送螺杆20同轴连接，即：电机直接带动推送螺杆20旋转，动力传递效率高，且所需的零部件数量较少，简化了产品结构，有利于节约成本。
或者，驱动装置60包括电机和齿轮传动机构，齿轮传动机构与推送螺杆20相连接，即：电机通过齿轮传动机构间接带动推送螺杆20旋转，齿轮传动机构可以实现增速效果，有利于减小电机能耗，且便于根据产品结构合理布局电机的位置。
进一步地，对于前述实施例中推送螺杆20包括第一螺杆、第二螺杆和连接轴的实施例而言，电机或者齿轮传递机构与第一螺杆或者第二螺杆相连；对于推送螺杆20的数量为多个的实施例而言，驱动装置60的数量也为多个，分别驱动各个推送螺杆20。
本申请第四方面的实施例提供了一种烹饪器具，包括：烹饪主体和如第三方面实施例中任一项的物料存储装置，其排料口11能够与烹饪主体的内部空间相连通。
本申请第四方面的实施例提供的烹饪器具，因包括第三方面实施例中任一项的物料存储装置，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
至于烹饪主体的内部空间，不受具体限制，比如：可以是上盖内的清洗腔体，物料送入清洗腔体内进行清洗；也可以是内锅，物料送入内锅中进行清洗或者烹饪。
在上述实施例中，烹饪器具为电饭煲。
当然不局限于电饭煲，也可以为电压力锅、电炖锅、电蒸锅、电煮锅、豆浆机等。
下面结合一些具体实施例来详细描述本申请提供的烹饪器具的具体结构，并与现有技术进行对比。
目前，在全自动电饭煲中，设计了一种高容积率米箱(即储料箱)，底部设有螺旋输料装置(即推送螺杆)，高容积率米箱底部两端的双向螺杆系统可代替传统米仓通过控制角度达到输运米粒的功能。工作状态下，电机驱动螺杆转动，带动两端螺旋结构将米箱两端米粒输运至中间，然后经由底部中间位置的卸料口卸出。由于螺旋结构紧贴米仓(即储料箱)底部，即使米量较少时也能达到较好的运输效果。在米箱的双向螺旋下米系统中，常规的等径等距等深螺杆容易造成米箱中间部位米隆起现象，不能通过传感器精准判断米仓实时米量。
基于此，本申请根据螺杆输运的特点，设计了等径等距不等深及等径等深不等距两种螺杆结构，满足均匀输送物料的要求。
具体地，本申请设计的一种米箱及下米结构，如图7所示，主要由米箱(即储料箱)、送米机构(即物料输送腔+送料管等结构)和电机组成。在米箱的底部设有双向螺旋螺杆，螺杆的一端与电机相连，可以是直接与电机输出轴连接，也可以通过齿轮或者皮带连接；在螺杆中间设有叶片，与螺杆采用同轴传动，叶片两端的螺杆螺旋方向相反。
米箱及下米结构的剖面图，如图8所示，11为下米口(即排料口)，12为双向螺旋螺杆，一端为左旋，一端为右旋，螺旋方向相反；13为叶片(即输送叶轮)，米箱两端的螺杆与叶片采用同轴传动，总体效果保证米粒往中间运输。
工作时，电机带动螺杆旋转，将米箱两侧的米粒往中间运输，达到中间的米粒通过叶片翻转从米箱底部的下米口进入送米机构。传统螺杆采用等距、等径、螺槽等深方式设计，工作过程中，只有螺杆与米箱接触的端部会有米粒填充输运，其余螺杆部分米粒无法填充，导致米粒不平整。
根据螺杆输运的性质，提出了以下两种设计方案。
设计一：
螺杆直径(即螺纹外径)d1、螺距(即螺纹间距)S维持不变，螺杆槽半径(即螺杆轴半径)R2与离叶片的间距(即螺旋槽与排料口的间距)L可采用线性变化，L＝k×R2+C，如图9所示；或者采用非线性变化，L＝a×R2 2+b×R2+c，或L＝a×R2 3+b×R2 2+c×R2+d，如图10所示，呈现靠近叶片位置的螺杆槽直径小于两边的螺杆槽直径。在螺杆螺距、直径维持不变，螺杆输运量与螺杆输运的横截面积成正比例线性关系，也就是与螺杆槽的深度成平方关系，每旋转一周，向前输运量等于一个螺距内包含的物料量,因此在米箱各处对物料阻力相同的条件下，推荐使用L＝a×R2 2+b×R2+c的方案，如果米箱不同位置对物料的阻力不同，需要根据阻力分布采用线性或非线性方案。
换言之，螺杆采用等径、等距螺杆，螺槽深度的直径为线性或非线性变化，靠近螺杆中间位置的螺杆槽直径小于米箱两边的螺杆槽直径，通过螺槽深度的线性或非线性变化，逐渐增加螺杆输运方向上的米粒质量流率，也就是米箱的米粒整体均匀减少，保证米粒高度的一致性。
设计二：
螺杆直径d1(即螺纹外径)、螺槽深度H维持不变，螺距S可采用线性或非线性变化，使与离叶片的间距L为线性变化，如图11所示；或者非线性变化，S＝a×L 2+b×L+c，或S＝a×L 3+b×L 2+c×L+d，如图12所示，呈现靠近叶片位置的螺距大于米箱两边的螺距。在螺杆直径、螺槽深度维持不变的条件下，螺杆输运量与螺杆螺距成正比例线性关系，每旋转一周，向前输运量等于一个 螺距内包含的物料量，因此在米箱各处对物料阻力相同的条件下，推荐使用S＝k×L+C的方案，如果米箱不同位置对物料的阻力不同，需要根据阻力分布采用其他线性或非线性方案。
换言之，螺杆采用等径等深螺杆，螺距为线性或非线性变化，靠近螺杆中间位置的螺距大于米箱两边的螺距，通过螺距的线性或非线性变化，逐渐增加螺杆输运方向上的米粒质量流率，也就是米箱的米粒整体均匀减少，保证米粒高度的一致性。
其中，根据螺杆输运特性，设计一将螺杆设计为等径、等距，螺槽深度线性或非线性变化结构，并且靠近叶片位置的螺杆槽直径小于米箱两边的螺杆槽直径。螺杆在旋转输运物料过程中，由于螺槽深度的线性或非线性变化，导致螺杆沿着输运方向米粒质量流率逐渐增加，需要米箱内的米粒沿着输运方向不断往螺杆内补充，使得米粒高度整体均匀减少，保证了米粒高度的一致性。
设计二将螺杆设计为等径等深，螺距线性或非线性变化结构，靠近叶片中间位置的螺距大于米箱两边的螺距。螺杆在旋转输运物料过程中，由于螺距的线性或非线性变化，导致螺杆沿着输运方向米粒质量流率逐渐增加，需要米箱内的米粒沿着输运方向不断往螺杆内补充，使得米粒高度整体均匀减少，保证了米粒高度的一致性。
进一步地，上述实施例还可以做以下变形，也能够实现本申请的目的：
单向螺旋(右旋或左旋)采用等距等径，螺槽深度为线性或非线性变化，集中往一端运输，保证输运物料沿输运长度均匀下降，如图13所示；单向螺旋(右旋或左旋)采用等径等深，间距为线性或非线性变化，集中往一端运输，保证输运物料沿输运长度均匀下降，如图14所示；螺旋槽深度变化与螺杆轴直径变化效果等同，都相当于改变输运面积。
综上所述，上述实施例提供的物料存储装置，通过改进推送螺杆的结构，使其螺旋槽的容积按照由出料部位向远离出料部位的方向逐渐减小，即：以推送螺杆推送物料的方向为基准，螺旋槽的容积由下游向上游逐渐减小，则螺旋槽能够容纳并推送的物料量由上游向下游逐渐增加，因此上游螺旋槽推送的物料量小于下游螺旋槽实际能够容纳的物料量，则下游螺旋槽上方附近的物料会自动向下落入螺旋槽中以填补不足，因而推送螺杆推送至排料口处的物料不仅 仅只是靠近储料箱内壁区域的物料，还有储料箱中部区域的物料，从而实现了均匀给料，使得米箱内的物料保持水平，有效改善了物料隆起现象，提高了检测装置判断储料箱内的实时物料量的准确性。换言之，由于螺旋槽的容积沿推送螺杆的送料方向逐渐增加，需要储料箱内的物料沿着送料方向不断往推送螺杆内补充，这能够逐渐增加推送螺杆送料方向上的物料质量流率，进而使得米粒高度整体均匀减小，保证了物料高度的一致性。同时，螺旋槽的容积V和螺旋槽与排料口之间的距离L满足函数关系，这保证了V与L的准确对应，因而只要确定了螺旋槽与排料口之间的距离L，即可得到螺旋槽的容积V的精确值，使得螺旋槽的容积V(按照由出料部位指向远离出料部位的方向)逐渐减小的程度得到精确控制，有利于储料箱底部各个部位横向输送物料和纵向重力落料的综合作用更加均衡，从而进一步提高储料箱给料的均匀性，进一步提高储料箱内物料的平整度；此外，也便于设计人员根据函数关系快速设计出推送螺杆的具体结构，以缩短设计周期，进而缩短产品的生产周期。
尽管具有随附权利要求，但本申请也由以下条款限定：
1.一种物料存储装置，包括：
储料箱，开设有用于输出物料的排料口；
推送螺杆，设置于所述储料箱的底部，所述推送螺杆的出料部位临近所述排料口，能够在旋转时沿其轴向将物料推送至所述排料口处，且按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺旋槽的容积逐渐减小；
其中，记所述螺旋槽的容积为V，所述螺旋槽与所述排料口之间的距离为L，所述V与所述L满足函数关系：V＝f(L)。
2.根据条款1所述的物料存储装置，
按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹间距保持不变，所述螺旋槽的深度逐渐减小，记所述螺旋槽的深度为H，所述H与所述L满足函数关系：L＝f 1(H)。
3.根据条款2所述的物料存储装置，
所述H与所述L满足一次函数关系：L＝k×H+C，其中，所述k和所述C为常数，且所述k不等于0；或者
所述H与所述L满足二次函数关系：L＝a×H 2+b×H+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
所述H与所述L满足三次函数关系：L＝a×H 3+b×H 2+c×H+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0；或者
所述H与所述L满足一次函数关系：H＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者
所述H与所述L满足二次函数关系：H＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
所述H与所述L满足三次函数关系：H＝a×L 3+b×L 2+c×L+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0。
4.根据条款1所述的物料存储装置，
按照由所述出料部位指向远离所述出料部位的方向，所述螺旋槽的螺纹深度保持不变，所述推送螺杆的螺纹间距逐渐减小，记所述推送螺杆的螺纹间距为S，所述S与所述L满足函数关系：S＝f 2(L)。
5.根据条款4所述的物料存储装置，
所述S与所述L满足一次函数关系：S＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者
所述S与所述L满足二次函数关系：S＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
所述S与所述L满足三次函数关系：S＝a×L 3+b×L 2+c×L+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0。
6.根据条款1至5中任一项所述的物料存储装置，
按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹外径保持不变；和/或
所述物料存储装置还包括：输送叶轮，设置在所述储料箱的底部，并与所述排料口相对应，用于把上方的物料向下输送至所述排料口处；和/或
所述物料存储装置还包括：弧形物料输送腔，由向下开口的弧面与下方的平面围合形成，所述排料口平滑延伸至所述弧面上，以使所述弧形物料输送腔通过所述排料口与所述储料箱导通。
7.根据条款1至5中任一项所述的物料存储装置，
所述推送螺杆的数量为一个，所述排料口靠近所述储料箱的边缘部位；或者
所述推送螺杆的数量为多个，多个所述推送螺杆以所述排料口为中心呈放射状布置在所述排料口的外侧；或者
所述推送螺杆包括：第一螺杆，其一端连接至所述储料箱的一侧内壁，其另一端临近所述排料口设置；第二螺杆，与所述第一螺杆共轴设置，且与所述第一螺杆的螺纹设置方向相反，其一端连接至所述储料箱的另一侧内壁，其另一端临近所述排料口设置；连接轴，对应设置在所述排料口的上方，分别固定连接至所述第一螺杆的另一端与所述第二螺杆的另一端，以使所述第一螺杆与所述第二螺杆同步旋转。
8.根据条款1至5中任一项所述的物料存储装置，还包括：
驱动装置，与所述推送螺杆对应连接，用于驱动所述推送螺杆旋转。
9.根据条款8所述的物料存储装置，
所述驱动装置包括电机，所述电机的输出轴与所述推送螺杆同轴连接；或者
所述驱动装置包括电机和与所述电机的输出轴相连的齿轮传动机构，所述齿轮传动机构与所述推送螺杆相连接。
10.一种烹饪器具，包括：
烹饪主体；和
如条款1至9中任一项所述的物料存储装置，其排料口能够与所述烹饪主体的内部空间相连通。
在本申请中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描 述本申请和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本申请的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (19)

  1. 一种物料存储装置，其中，包括：
    储料箱，其底部开设有用于输出物料的排料口；
    推送螺杆，位于所述储料箱的底部，且其出料部位临近所述排料口，能够在旋转时沿其轴向将物料推送至所述排料口处；
    防堵罩，安装在所述储料箱内，并罩设在所述推送螺杆的上方，且所述防堵罩与所述储料箱的内壁面之间限定有供物料通过的过料间隙；
    其中，沿所述推送螺杆的送料方向，所述过料间隙与所述推送螺杆相对应的部分包括第一间隙过料段和一端与所述第一间隙过料段相连的第二间隙过料段，且所述第一间隙过料段的宽度小于所述第二间隙过料段的宽度。
  2. 根据权利要求1所述的物料存储装置，其中，还包括：
    输送叶轮，设置在所述储料箱的底部，并与所述排料口相对应，用于把上方的物料向下输送至所述排料口处；
    其中，所述防堵罩也罩设在所述输送叶轮的上方，且所述过料间隙与所述输送叶轮相对应的部分形成为第三间隙过料段，所述第三间隙过料段与所述第二间隙过料段的另一端相连。
  3. 根据权利要求2所述的物料存储装置，其中，
    所述防堵罩与所述储料箱相对设置的两个内壁面之间分别限定出所述过料间隙，两个所述过料间隙的所述第三间隙过料段分别记为推料间隙过料段和下料间隙过料段，且所述推料间隙过料段处的至少部分物料能够在所述输送叶轮旋转时被旋转推送至所述下料间隙过料段处并通过所述排料口排出；
    其中，所述推料间隙过料段的宽度小于所述下料间隙过料段的宽度。
  4. 根据权利要求3所述的物料存储装置，其中，
    所述推料间隙过料段的宽度小于所述第二间隙过料段的宽度；和/或
    所述推料间隙过料段的宽度等于所述第一间隙过料段的宽度；和/或
    所述下料间隙过料段的宽度等于所述第二间隙过料段的宽度。
  5. 根据权利要求1至4中任一项所述的物料存储装置，其中，
    所述第一间隙过料段与所述第二间隙过料段通过第一过渡间隙过料段相连，所述第一过渡间隙过料段的宽度沿所述推送螺杆的送料方向逐渐增大；和/或
    所述第一间隙过料段为等宽结构；和/或
    所述第二间隙过料段为等宽结构；和/或
    所述过料间隙的宽度在5mm-10mm的范围内；和/或
    所述储料箱的底部局部向下凹陷形成送料槽，所述排料口开设在所述送料槽的底部，所述送料槽两侧的部位被构造成由所述储料箱的侧壁向所述送料槽所在位置倾斜过渡的导流壁，所述防堵罩与所述导流壁之间限定出所述过料间隙。
  6. 根据权利要求1至5中任一项所述的物料存储装置，其中，
    所述储料箱的内壁面为直面，所述防堵罩靠近所述储料箱的内壁面的边缘被构造成非直线型，使所述防堵罩与所述储料箱的内壁面之间形成非等宽的所述过料间隙。
  7. 根据权利要求6所述的物料存储装置，其中，
    所述防堵罩靠近所述储料箱的内壁面的边缘被构造成折线型。
  8. 根据权利要求1至7中任一项所述的物料存储装置，其中，
    所述推送螺杆的数量为两个，两个所述推送螺杆同轴连接且送料方向相反，所述排料口位于两个所述推送螺杆之间，且其中一个所述推送螺杆的一端与驱动装置相连，以使两个所述推送螺杆能够同步旋转并同时向所述排料口处推送物料。
  9. 根据权利要求8所述的物料存储装置，其中，
    所述第一间隙过料段的长度与所述过料间隙的总长度之比在0.1-0.3的范围内；和/或
    所述第二间隙过料段的长度与所述过料间隙的总长度之比在0.1-0.3的范围内。
  10. 根据权利要求1至9中任一项所述的物料存储装置，其中，
    按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺旋槽的容积逐渐减小；
    其中，记所述螺旋槽的容积为V，所述螺旋槽与所述排料口之间的距离为L，所述V与所述L满足函数关系：V＝f(L)。
  11. 根据权利要求10所述的物料存储装置，其中，
    按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹间距保持不变，所述螺旋槽的深度逐渐减小，记所述螺旋槽的深度为H，所述H与所述L满足函数关系：L＝f 1(H)。
  12. 根据权利要求11所述的物料存储装置，其中，
    所述H与所述L满足一次函数关系：L＝k×H+C，其中，所述k和所述C为常数，且所述k不等于0；或者
    所述H与所述L满足二次函数关系：L＝a×H 2+b×H+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
    所述H与所述L满足三次函数关系：L＝a×H 3+b×H 2+c×H+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0；或者
    所述H与所述L满足一次函数关系：H＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者
    所述H与所述L满足二次函数关系：H＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
    所述H与所述L满足三次函数关系：H＝a×L 3+b×L 2+c×L+d，其中，所述a、所述b、所述c和所述d为常数，且所述a不等于0。
  13. 根据权利要求10所述的物料存储装置，其中，
    按照由所述出料部位指向远离所述出料部位的方向，所述螺旋槽的螺纹深度保持不变，所述推送螺杆的螺纹间距逐渐减小，记所述推送螺杆的螺纹间距为S，所述S与所述L满足函数关系：S＝f 2(L)。
  14. 根据权利要求13所述的物料存储装置，其中，
    所述S与所述L满足一次函数关系：S＝k×L+C，其中，所述k和所述C为常数，且所述k不等于0；或者
    所述S与所述L满足二次函数关系：S＝a×L 2+b×L+c，其中，所述a、所述b和所述c为常数，且所述a不等于0；或者
    所述S与所述L满足三次函数关系：S＝a×L 3+b×L 2+c×L+d，其中，所述 a、所述b、所述c和所述d为常数，且所述a不等于0。
  15. 根据权利要求1至14中任一项所述的物料存储装置，其中，
    按照由所述出料部位指向远离所述出料部位的方向，所述推送螺杆的螺纹外径保持不变；和/或
    所述物料存储装置还包括：输送叶轮，设置在所述储料箱的底部，并与所述排料口相对应，用于把上方的物料向下输送至所述排料口处；和/或
    所述物料存储装置还包括：弧形物料输送腔，由向下开口的弧面与下方的平面围合形成，所述排料口平滑延伸至所述弧面上，以使所述弧形物料输送腔通过所述排料口与所述储料箱导通。
  16. 根据权利要求1至7及10至15中任一项所述的物料存储装置，其中，
    所述推送螺杆的数量为一个，所述排料口靠近所述储料箱的边缘部位；或者
    所述推送螺杆的数量为多个，多个所述推送螺杆以所述排料口为中心呈放射状布置在所述排料口的外侧；或者
    所述推送螺杆包括：第一螺杆，其一端连接至所述储料箱的一侧内壁，其另一端临近所述排料口设置；第二螺杆，与所述第一螺杆共轴设置，且与所述第一螺杆的螺纹设置方向相反，其一端连接至所述储料箱的另一侧内壁，其另一端临近所述排料口设置；连接轴，对应设置在所述排料口的上方，分别固定连接至所述第一螺杆的另一端与所述第二螺杆的另一端，以使所述第一螺杆与所述第二螺杆同步旋转。
  17. 根据权利要求1至16中任一项所述的物料存储装置，其中，还包括：
    驱动装置，与所述推送螺杆对应连接，用于驱动所述推送螺杆旋转。
  18. 根据权利要求17所述的物料存储装置，其中，
    所述驱动装置包括电机，所述电机的输出轴与所述推送螺杆同轴连接；或者，所述驱动装置包括电机和与所述电机的输出轴相连的齿轮传动机构，所述齿轮传动机构与所述推送螺杆相连接。
  19. 一种烹饪器具，其中，包括：
    烹饪主体；和
    如权利要求1至18中任一项所述的物料存储装置，其排料口能够与所述烹饪主体的内部空间相连通。
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CN204054416U (zh) * 2014-07-24 2014-12-31 广东联塑科技实业有限公司 一种硬脂酸钙送料装置
CN204587938U (zh) * 2015-03-26 2015-08-26 珠海优特电力科技股份有限公司 一种给料螺杆及螺旋给料机构
CN204606908U (zh) * 2015-05-14 2015-09-02 铜陵有色设计研究院 无积料式螺旋喂料机

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CN113974414B (zh) * 2021-06-03 2024-03-08 添可智能科技有限公司 烹饪设备及加料装置
WO2024055573A1 (zh) * 2022-09-14 2024-03-21 佛山市顺德区美的电热电器制造有限公司 送料装置和烹饪器具
CN115281055A (zh) * 2022-09-20 2022-11-04 河南鸣皋智能科技有限公司 一种农业用生物育种营养基的制造装置及方法
CN115281055B (zh) * 2022-09-20 2023-06-06 河南鸣皋智能科技有限公司 一种农业用生物育种营养基的制造装置及方法

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