A circulating ventilation type grain storage device

By using spiral blades to transport grain and a fan to remove heat, combined with anti-clogging and auxiliary discharge components, the problem of slowed gas flow in grain storage equipment is solved, achieving effective ventilation and heat removal, uniform grain discharge, and preventing mold and fermentation.

CN224290779UActive Publication Date: 2026-05-29YANSHOU LIDA GRAIN & OIL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YANSHOU LIDA GRAIN & OIL CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

When storing large quantities of grain, the gas flowing out of the outer and inner ring pipes in existing grain storage equipment flows at a slower speed in the grain layer, making it difficult to penetrate deep into the grain layer. This results in heat not being effectively removed, which can easily lead to mold and fermentation problems.

Method used

A circulating ventilation type grain storage device was designed, which uses spiral blades and rotating components in conjunction with a fan. The spiral blades transport the grain and the fan removes heat. At the same time, anti-clogging components and auxiliary discharge components are used to prevent grain blockage and ensure uniform grain discharge.

Benefits of technology

It effectively removes heat and moisture from accumulated grains, preventing mold and fermentation, ensuring smooth grain drainage, reducing waste, and improving storage efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to grain storage technical field, concretely relates to a kind of circular flow ventilation type grain storage device, including storage bin, the top cover of storage bin is fixedly installed with motor, the outer wall of storage bin is fixedly connected with fan, annular pipe is fixedly installed in the inner wall of storage bin, the inside of storage bin is provided with auxiliary heat-removal mechanism, and the auxiliary heat-removal mechanism includes rotating shaft, and the rotating shaft is fixedly connected on the output shaft of motor.This circular flow ventilation type grain storage device uses auxiliary heat-removal mechanism, spiral blade is driven by motor to send bottom layer grain upward, so that the grain at the bottom of bin can flow, break the closed state of thick grain layer, at the same time, rotating assembly drives sleeve rotation, so that discharge port uniformly disperses grain, expands the contact area of airflow and grain heap, carries away the heat and moisture generated by grain accumulation, effectively avoids mildew and fermentation caused by insufficient ventilation.
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Description

Technical Field

[0001] This utility model relates to the field of massage device technology, specifically a circulating ventilation type grain storage device. Background Technology

[0002] Grain storage equipment primarily provides a sheltered space for storing grain, protected from wind and rain. To prevent stored grain from becoming damp and moldy, especially when grain is piled up and unable to reach dry air, the internal moisture cannot dissipate, leading to mold, fermentation, and insect infestation after a period of storage. Therefore, many grain storage systems are equipped with ventilation systems.

[0003] Currently, among the existing technologies, Chinese patent with publication number CN219437630U discloses a circulating ventilation type grain storage tank. This device, through the cooperation of outer and inner surrounding pipes, allows the grain inside the storage tank to be fully ventilated and dried, so as to facilitate better storage.

[0004] However, since the amount of grain stored in the tank is usually large, the grain will form a thick layer after it is piled up. In this case, the gas flowing out of the outer and inner surrounding pipes will encounter great resistance when flowing in the grain layer, and the gas flow speed will gradually slow down, making it difficult for it to penetrate into the interior of the grain layer and effectively remove the heat generated by the grain accumulation. In view of this, a circulating ventilation type grain storage device is proposed. Utility Model Content

[0005] The main objective of this invention is to provide a circulating ventilation type grain storage device that can solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention proposes a circulating ventilation type grain storage device, comprising a storage silo, a motor fixedly installed on the top cover plate of the storage silo, a fan fixedly connected to the outer wall of the storage silo, an annular pipe fixedly installed in the inner wall of the storage silo, and an auxiliary heat dissipation mechanism provided inside the storage silo, the auxiliary heat dissipation mechanism comprising:

[0007] A rotating shaft is fixedly connected to the output shaft of a motor, and helical blades are fixedly connected to the outer wall of the rotating shaft;

[0008] A rotating assembly is provided on the lower side of the cover plate. A sleeve is provided on the lower side of the rotating assembly. A connecting cylinder is rotatably connected to the bottom of the sleeve. A discharge port is provided on the outer wall of the sleeve.

[0009] An anti-clogging component is located below the rotating component. The rotation of the motor's output shaft drives the spiral blades to rotate, thereby allowing the spiral blades to transport the grain up, enabling the grain at the bottom of the bin to flow and then be discharged from the discharge port. During the falling process, the airflow carried away the heat of the grain by the operation of the fan.

[0010] Preferably, the rotating assembly includes a driving gear, a driven gear, and a gear ring. The driving gear meshes with the driven gear, the driven gear meshes with the gear ring, and the gear ring is fixed to the sleeve. The rotation of the motor's output shaft drives the driving gear to rotate, which in turn drives the driven gear to rotate, causing the gear ring to rotate the sleeve, which in turn rotates the discharge port, allowing the grain to fall evenly into the storage bin.

[0011] Preferably, the driving gear is fixed to the rotating shaft, the driven gear is rotatably connected to the lower side of the cover plate via a positioning shaft, and the gear ring is rotatably connected to the lower side of the cover plate.

[0012] Preferably, the anti-clogging component includes an eccentric wheel, which is penetrated and fixed to a rotating shaft. The eccentric wheel abuts against a sliding plate. A straight rod is fixedly connected to the side of the sliding plate away from the eccentric wheel. A swing rod is hinged to the end of the straight rod away from the sliding plate. A striking block is fixedly connected to the end of the swing rod away from the straight rod. A hinged rod is hinged to the middle of the swing rod. The end of the hinged rod away from the swing rod is hinged to the outer wall of the discharge port. The rotation of the rotating shaft drives the eccentric wheel to rotate, which in turn drives the sliding plate to move. This causes the straight rod to drive the swing rod to move, thereby enabling the striking block to strike and vibrate the discharge port, accelerating the sliding of the grain.

[0013] Preferably, both the eccentric wheel and the sliding plate are magnetic, and the eccentric wheel and the sliding plate are attracted to each other.

[0014] Preferably, a partition is fixedly connected to the inner wall of the sleeve, and the slide plate is slidably connected to the partition.

[0015] Preferably, an auxiliary discharge assembly is provided at the bottom of the rotating shaft. The auxiliary discharge assembly includes a ratchet, which is rotatably connected to the bottom of the storage bin. An elastic telescopic ratchet is fixedly connected to the outer wall of the rotating shaft, and the elastic telescopic ratchet engages with the ratchet. A sweeping plate is fixedly connected to the outer wall of the ratchet. By using the elastic telescopic ratchet and the ratchet, when the output shaft of the motor drives the rotating shaft to rotate clockwise, the ratchet does not rotate, and thus the sweeping plate does not rotate. When the grain in the storage bin is almost empty, the rotating shaft rotates counterclockwise, driving the ratchet to rotate and driving the sweeping plate to rotate, so that the grain at the bottom of the storage bin can be completely swept into the discharge port.

[0016] Preferably, an air outlet is provided on the outer wall of the storage chamber, and a material outlet is provided at the bottom of the storage chamber.

[0017] This invention provides a circulating ventilation type grain storage device. It has the following beneficial effects:

[0018] (1) The circulating ventilation type grain storage device uses an auxiliary heat dissipation mechanism. The spiral blades are driven by a motor to transport the bottom grain upward, so that the grain at the bottom of the silo can flow and break the closed state of the thick grain layer. At the same time, the rotating component drives the sleeve to rotate, so that the discharge port evenly disperses the grain, expands the contact area between the airflow and the grain pile, and removes the heat and moisture generated by the grain accumulation. This effectively avoids mold and fermentation problems caused by insufficient ventilation. In addition, the rotating design of the sleeve and the connecting cylinder means that the connecting cylinder will not rotate because it is in close contact with the grain and has greater friction, while the rotation of the sleeve is not affected.

[0019] (2) This circulating ventilation type grain storage device uses an anti-clogging component. The eccentric wheel rotates and pushes the slide plate, which drives the striking block to periodically strike the discharge port. The vibration prevents grain particles from clogging the channel and ensures smooth discharge. The magnetic adsorption of the eccentric wheel and the slide plate design makes the striking action stable and continuous, ensuring the normal falling of grain.

[0020] (3) This circulating ventilation type grain storage device uses an auxiliary discharge component, which employs a clever combination of ratchet and elastic telescopic ratchet. During normal grain storage, the rotating shaft rotates clockwise without driving the sweeping plate, thus avoiding interference with the grain pile. When the grain is almost at the bottom, the rotating shaft rotates counterclockwise to trigger the ratchet, which drives the sweeping plate to rotate, sweeping all the remaining grain at the bottom of the storage bin toward the discharge port, reducing grain waste and improving the practicality of the equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall internal structure of this utility model;

[0025] Figure 4 This is a schematic diagram of the auxiliary heat dissipation mechanism of this utility model;

[0026] Figure 5 This utility model Figure 2 Schematic diagram of structure A in the middle;

[0027] Figure 6 This is a cross-sectional view of the auxiliary material feeding component of this utility model.

[0028] Explanation of icon numbers:

[0029] 1. Storage bin; 2. Motor; 3. Fan; 4. Annular pipe; 5. Auxiliary heat dissipation mechanism; 51. Rotating shaft; 52. Spiral blade; 53. Rotating assembly; 54. Sleeve; 55. Connecting cylinder; 56. Discharge port; 57. Anti-clogging assembly; 58. Auxiliary discharge assembly; 101. Air outlet; 102. Discharge port; 531. Driving gear; 532. Driven gear; 533. Gear ring; 571. Eccentric wheel; 572. Slide plate; 573. Straight rod; 574. Swing rod; 575. Knocking block; 576. Hinge rod; 581. Ratchet; 582. Elastic telescopic ratchet; 583. Sweeping plate.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figures 1-6 This utility model proposes a circulating ventilation type grain storage device, including a storage chamber 1, an air outlet 101 on the outer wall of the storage chamber 1, a discharge port 102 at the bottom of the storage chamber 1, a motor 2 fixedly installed on the top cover plate of the storage chamber 1, a fan 3 fixedly connected to the outer wall of the storage chamber 1, an annular pipe 4 fixedly installed in the inner wall of the storage chamber 1, and an auxiliary heat dissipation mechanism 5 provided inside the storage chamber 1.

[0033] In this embodiment of the utility model, in order to improve the ventilation and heat dissipation effect of the grain, the auxiliary heat dissipation mechanism 5 specifically includes a rotating shaft 51, a rotating component 53, and an anti-clogging component 57. The rotating shaft 51 is fixedly connected to the output shaft of the motor 2, and a spiral blade 52 is fixedly connected to the outer wall of the rotating shaft 51. The rotating component 53 is located on the lower side of the cover plate, and a sleeve 54 is provided on the lower side of the rotating component 53. A connecting cylinder 55 is rotatably connected to the bottom of the sleeve 54, and a discharge port 56 is provided on the outer wall of the sleeve 54. The anti-clogging component 57 is located below the rotating component 53. The rotation of the output shaft of the motor 2 drives the rotating shaft 51 to rotate, which in turn drives the spiral blade 52 to rotate, thereby allowing the spiral blade 52 to transport the grain up, so that the grain at the bottom of the bin can flow and be discharged from the discharge port 56. During the process of the grain falling, the airflow carried away the heat and moisture of the grain by the operation of the fan 3, effectively avoiding the mold and fermentation problems caused by insufficient ventilation.

[0034] Furthermore, the rotating assembly 53 includes a driving gear 531, a driven gear 532, and a gear ring 533. The driving gear 531 meshes with the driven gear 532, and the driven gear 532 meshes with the gear ring 533. The gear ring 533 is fixed to the sleeve 54. The driving gear 531 is fixed to the rotating shaft 51. The driven gear 532 is rotatably connected to the lower side of the cover plate via a positioning shaft. The gear ring 533 is rotatably connected to the lower side of the cover plate. The rotation of the rotating shaft 51 drives the driving gear 531 to rotate, which in turn drives the driven gear 532 to rotate, causing the gear ring 533 to drive the sleeve 54 to rotate. This causes the discharge port 56 to rotate, allowing the grain to fall evenly into the storage bin 1. In addition, the rotation design of the sleeve 54 and the connecting cylinder 55 ensures that the connecting cylinder 55 will not rotate due to its close contact with the grain and high friction, while the rotation of the sleeve 54 is unaffected.

[0035] Furthermore, in order to accelerate the discharge of grain from the discharge port 56, specifically, the anti-clogging component 57 includes an eccentric wheel 571, which is passed through and fixed to the rotating shaft 51. The eccentric wheel 571 abuts against the sliding plate 572. Both the eccentric wheel 571 and the sliding plate 572 are magnetic, and the eccentric wheel 571 and the sliding plate 572 are attracted to each other. A straight rod 573 is fixedly connected to the side of the sliding plate 572 away from the eccentric wheel 571, and a swing arm is hinged to the end of the straight rod 573 away from the sliding plate 572. A striking block 575 is fixedly connected to one end of the swing rod 574 away from the straight rod 573. A hinge rod 576 is hinged to the middle of the swing rod 574. The end of the hinge rod 576 away from the swing rod 574 is hinged to the outer wall of the discharge port 56. The rotation of the rotating shaft 51 drives the eccentric wheel 571 to rotate, which in turn drives the slide plate 572 to move. This causes the straight rod 573 to drive the swing rod 574 to move, which in turn allows the striking block 575 to strike and vibrate the discharge port 56, accelerating the sliding of the grain.

[0036] Furthermore, a partition is fixedly connected to the inner wall of the sleeve 54, and the slide plate 572 is slidably connected to the partition. The use of the partition ensures that the operation of the anti-clogging component 57 is not affected by the grain.

[0037] Furthermore, an auxiliary discharge assembly 58 is provided at the bottom of the rotating shaft 51. The auxiliary discharge assembly 58 includes a ratchet 581, which is rotatably connected to the bottom of the storage bin 1. An elastic telescopic ratchet 582 is fixedly connected to the outer wall of the rotating shaft 51, and the elastic telescopic ratchet 582 is engaged with the ratchet 581. A sweeping plate 583 is fixedly connected to the outer wall of the ratchet 581. By using the elastic telescopic ratchet 582 and the ratchet 581, when the output shaft of the motor 2 drives the rotating shaft 51 to rotate clockwise, the ratchet 581 does not rotate, and consequently the sweeping plate 583 does not rotate. When the grain in the storage bin 1 is almost gone, the rotating shaft 51 rotates counterclockwise, driving the ratchet 581 to rotate and driving the sweeping plate 583 to rotate, so that the grain at the bottom of the storage bin 1 can be completely swept into the discharge port 102.

[0038] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that all electrical appliances can work normally. The components are all general standard parts or components known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.

[0039] In operation, motor 2 is started first. The output shaft of motor 2 rotates clockwise, driving shaft 51 to rotate, which in turn drives spiral blades 52 to rotate. This causes spiral blades 52 to transport the grain to the bottom of the silo, allowing the grain to flow and then be discharged from discharge port 56. As the grain falls, the fan 3 operates, and the airflow carries away the heat and moisture from the grain. During this process, shaft 51 rotates, driving drive gear 531 to rotate, which in turn drives driven gear 532 to rotate. This causes gear ring 533 to drive sleeve 54 to rotate, which in turn rotates discharge port 56, ensuring that the grain falls evenly to the bottom. In storage bin 1, the rotation of shaft 51 drives the eccentric wheel 571 to rotate, which in turn drives the slide plate 572 to move, causing the straight rod 573 to drive the swing rod 574 to move, which in turn causes the striking block 575 to strike and vibrate the discharge port 56, accelerating the sliding of grain. When shaft 51 rotates clockwise, ratchet 581 does not rotate, and therefore sweeping plate 583 does not rotate. When the grain in storage bin 1 is almost gone, the rotation of shaft 51 rotates counterclockwise, which drives ratchet 581 to rotate and sweeping plate 583 to rotate, so that the grain at the bottom of storage bin 1 can be completely swept into discharge port 102.

[0040] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A circulating ventilation type grain storage device, comprising a storage bin (1), characterized in that: A motor (2) is fixedly installed on the top cover plate of the storage chamber (1), a fan (3) is fixedly connected to the outer wall of the storage chamber (1), an annular pipe (4) is fixedly installed in the inner wall of the storage chamber (1), and an auxiliary heat dissipation mechanism (5) is provided inside the storage chamber (1). The auxiliary heat dissipation mechanism (5) includes: A rotating shaft (51) is fixedly connected to the output shaft of the motor (2), and a spiral blade (52) is fixedly connected to the outer wall of the rotating shaft (51). Rotating assembly (53), the rotating assembly (53) is disposed on the lower side of the cover plate, a sleeve (54) is disposed on the lower side of the rotating assembly (53), a connecting cylinder (55) is rotatably connected to the bottom of the sleeve (54), and a discharge port (56) is provided on the outer wall of the sleeve (54). An anti-clogging component (57) is disposed below the rotating component (53).

2. The circulating ventilation type grain storage device according to claim 1, characterized in that: The rotating assembly (53) includes a driving gear (531), a driven gear (532) and a gear ring (533). The driving gear (531) meshes with the driven gear (532), the driven gear (532) meshes with the gear ring (533), and the gear ring (533) is fixed to the sleeve (54).

3. The circulating ventilation type grain storage device according to claim 2, characterized in that: The driving gear (531) is fixed to the rotating shaft (51), the driven gear (532) is rotatably connected to the lower side of the cover plate through the positioning shaft, and the gear ring (533) is rotatably connected to the lower side of the cover plate.

4. The circulating ventilation type grain storage device according to claim 1, characterized in that: The anti-clogging component (57) includes an eccentric wheel (571), which is penetrated by a rotating shaft (51) and fixed to the rotating shaft (51). The eccentric wheel (571) abuts against a sliding plate (572). A straight rod (573) is fixedly connected to the side of the sliding plate (572) away from the eccentric wheel (571). A swing rod (574) is hinged to the end of the straight rod (573) away from the sliding plate (572). A striking block (575) is fixedly connected to the end of the swing rod (574) away from the straight rod (573). A hinge rod (576) is hinged to the middle of the swing rod (574). The end of the hinge rod (576) away from the swing rod (574) is hinged to the outer wall of the discharge port (56).

5. A circulating ventilation type grain storage device according to claim 4, characterized in that: Both the eccentric wheel (571) and the skateboard (572) are magnetic, and the eccentric wheel (571) and the skateboard (572) are attracted to each other.

6. A circulating ventilation type grain storage device according to claim 4, characterized in that: A partition is fixedly connected to the inner wall of the sleeve (54), and the slide plate (572) is slidably connected to the partition.

7. A circulating ventilation type grain storage device according to claim 1, characterized in that: An auxiliary discharge assembly (58) is provided at the bottom of the rotating shaft (51). The auxiliary discharge assembly (58) includes a ratchet (581), which is rotatably connected to the bottom of the storage bin (1). An elastic telescopic ratchet (582) is fixedly connected to the outer wall of the rotating shaft (51), and the elastic telescopic ratchet (582) is engaged with the ratchet (581). A sweeping plate (583) is fixedly connected to the outer wall of the ratchet (581).

8. A circulating ventilation type grain storage device according to claim 1, characterized in that: An air outlet (101) is provided on the outer wall of the storage chamber (1), and a discharge port (102) is provided at the bottom of the storage chamber (1).