Insect-proof grain storage bin

By combining a reciprocating air supply and stirring structure with a multi-layer insect-proof net, the problems of chemical residues and incomplete insect-proofing in existing technologies are solved, thereby improving the safety and efficiency of grain storage.

CN224670397UActive Publication Date: 2026-08-25林芝市巴宜区农牧技术推广中心
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Patent Information

Application Number
CN202522145246.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-08-25
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

Existing grain storage facilities mainly rely on chemical agents and physical barriers for pest control, which poses a high risk of pesticide residues and incomplete pest control, affecting grain turnover efficiency and food safety.

Method used

It adopts a reciprocating air supply and auxiliary stirring structure, combined with multi-layer insect-proof netting, to reduce the temperature and humidity inside the grain silo through forced ventilation and stirring, preventing the breeding and reproduction of pests and avoiding the use of chemical agents.

Benefits of technology

It effectively reduces temperature and humidity inside grain warehouses, reduces pest breeding, improves ventilation efficiency, prevents pests from entering, ensures food safety with no chemical residues, and improves the quality and efficiency of grain storage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224670397U_ABST
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Abstract

The utility model provides a kind of anti-insect grain reserve storehouse, including reserve storehouse body and moving plate, reserve storehouse body right side lower end is equipped with side storehouse door by hinge, reserve storehouse body upper end middle is equipped with air supply barrel, fan is installed in air supply barrel, side storehouse door right side and air supply barrel upper end are all equipped with anti-insect frame, stainless steel anti-insect net and nylon anti-insect net are installed in anti-insect frame, reserve storehouse body right side upper end is equipped with servo motor, the design solves the original grain reserve storehouse grain anti-insect mainly relies on "chemical agent+physical isolation", with certain harm, and the problem that anti-insect effect is general, the utility model uses reciprocating movement air supply and auxiliary stirring structure, can be moved stirring in grain reserve storehouse, and forced ventilation, so that its ventilation can reduce the temperature and humidity inside granary, reduce pest breeding and propagation, multiple anti-insect nets are configured simultaneously, to prevent pests easily enter.
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Description

Technical Field

[0001] This utility model is an insect-proof grain storage silo, belonging to the field of grain storage technology. Background Technology

[0002] Food security is a crucial foundation of national security, and pest problems during grain storage are one of the main causes of declining grain quality and quantity losses. Storage pests such as corn weevils, grain borers, and wheat moths not only bore into the grain but their metabolic activities also cause the grain pile to heat up and increase humidity, leading to mold growth and causing huge economic losses.

[0003] Current methods for pest control in grain storage mainly rely on "chemical agents + physical isolation," but there are significant technical drawbacks: such as high risk of chemical pesticide residues: farmers often use aluminum phosphide fumigation and pesticide-resistant phosphorus-mixed grains, which can kill insects, but pesticide residues are prone to exceed the standard (especially for raw grains that are directly consumed), and ventilation is required for 7-15 days after fumigation, affecting grain turnover efficiency; physical pest control is not thorough: the insect-proof netting or ventilation in ordinary storage warehouses has a simple structure, and pests can easily enter. There is an urgent need for a new type of insect-proof grain storage warehouse to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an insect-proof grain storage silo to solve the problems mentioned in the background technology. This utility model adopts a reciprocating moving air supply and auxiliary stirring structure, which can move and stir inside the grain storage silo and force ventilation. The ventilation can reduce the temperature and humidity inside the grain silo, reduce the breeding and reproduction of pests, and at the same time, it is equipped with multiple layers of insect-proof nets to prevent pests from easily entering.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an insect-proof grain storage silo, comprising a storage silo body and a movable plate. A side door is installed at the lower right end of the storage silo body via a hinge. An air supply duct is installed in the middle of the upper end of the storage silo body, and a fan is installed inside the air supply duct. Insect-proof frames are installed on the right side of the side door and at the upper end of the air supply duct. Stainless steel insect-proof netting and nylon insect-proof netting are installed inside the insect-proof frames. A servo motor is installed at the upper right end of the storage silo body. A transmission screw is horizontally installed at the upper end of the storage silo body via a bearing. Two threaded sleeves are installed on the outside of the transmission screw via threads. The movable plate is fixed to the lower end of the two threaded sleeves. A stirring motor is installed on both the left and right sides of the upper end of the movable plate. The shaft ends of the two stirring motors pass through the movable plate and are connected to stirring shafts. Spiral stirring blades are provided on the outside of the two stirring shafts. A honeycomb square tube is fixed in the middle of the lower end of the movable plate. The upper end of the honeycomb square tube passes through the movable plate and is connected to a corrugated rubber tube.

[0006] Furthermore, an arc-shaped cover is installed on the upper left side of the storage compartment via a hinge.

[0007] Furthermore, a control panel is installed on the front right side of the storage tank, and the control panel is connected to the fan, servo motor and two stirring motors via wires.

[0008] Furthermore, the right end of the transmission screw is connected to a servo motor.

[0009] Furthermore, the upper end of the corrugated rubber tube is connected to the air supply duct.

[0010] Furthermore, the front and rear ends of the movable plate slide against the inner wall of the storage compartment.

[0011] The beneficial effects of this utility model are as follows: This utility model provides an insect-proof grain storage silo. Because it incorporates an air supply duct, fan, insect-proof frame, stainless steel insect-proof netting, nylon insect-proof netting, servo motor, transmission screw, screw sleeve, moving plate, stirring motor, stirring shaft, spiral stirring blades, honeycomb square cylinder, and corrugated rubber hose, its structure is reasonable. It adopts a reciprocating moving air supply and auxiliary stirring structure, allowing it to move and stir within the grain storage silo while providing forced ventilation. This ventilation reduces the internal temperature and humidity of the silo, decreasing the breeding and reproduction of pests. Simultaneously, it is equipped with multiple layers of insect-proof netting to prevent pests from easily entering. It does not rely on chemical agents and is highly practical. Attached Figure Description

[0012] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of an insect-proof grain storage warehouse according to the present invention; Figure 2 This is a schematic diagram of the overall structure of the movable panel of an insect-proof grain storage warehouse according to this utility model; Figure 3 This is a schematic diagram of the structure of a stainless steel insect-proof net and a nylon insect-proof net for an insect-proof grain storage warehouse according to the present invention.

[0013] In the diagram: 1-Storage silo, 2-Arc-shaped top cover, 3-Side silo door, 4-Control panel, 5-Air supply duct, 6-Fan, 7-Insect-proof frame, 8-Stainless steel insect-proof net, 9-Nylon insect-proof net, 10-Servo motor, 11-Transmission screw, 12-Screw sleeve, 13-Moving plate, 14-Agitator motor, 15-Agitator shaft, 16-Spiral agitator blade, 17-Honeycomb square cylinder, 18-Corrugated rubber hose. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] Please see Figures 1-3This utility model provides a technical solution: an insect-proof grain storage bin, including a storage bin body 1 and a movable plate 13. A side door 3 is installed on the lower right side of the storage bin body 1 via a hinge. An air supply duct 5 is installed in the middle of the upper part of the storage bin body 1, and a fan 6 is installed inside the air supply duct 5. Insect-proof frames 7 are installed on the right side of the side door 3 and on the upper part of the air supply duct 5. Stainless steel insect-proof nets 8 and nylon insect-proof nets 9 are installed inside the insect-proof frames 7. A servo motor 10 is installed on the upper right side of the storage bin body 1, and a transmission screw 11 is horizontally installed inside the upper part of the storage bin body 1 via a bearing. Two threaded sleeves 12 are installed on the outside of the transmission screw 11. The moving plate 13 is fixed to the lower end of the two threaded sleeves 12. A stirring motor 14 is installed on the left and right sides of the upper end of the moving plate 13. The shaft ends of the two stirring motors 14 pass through the moving plate 13 and are connected to the stirring shaft 15. Spiral stirring blades 16 are provided on the outside of the two stirring shafts 15. A honeycomb square tube 17 is fixed in the middle of the lower end of the moving plate 13. The upper end of the honeycomb square tube 17 passes through the moving plate 13 and is connected to the corrugated rubber tube 18. This design solves the problem that the original grain storage warehouse mainly relied on "chemical agents + physical isolation" for pest control, which has certain hazards and the pest control effect is generally average.

[0016] As the first embodiment of this utility model: an arc-shaped cover 2 is installed on the upper left side of the storage silo body 1 via a hinge. The addition of the arc-shaped cover 2 facilitates material feeding from the top or maintenance of the equipment inside the silo. Its arc design helps to drain rainwater and prevent water accumulation. A control panel 4 is installed on the front right side of the storage silo body 1. The control panel 4 is connected to the fan 6, servo motor 10, and two stirring motors 14 via wires. The addition of the control panel 4 realizes centralized electrical control of the fan, servo motor, and stirring motor. Operators can easily set and adjust the equipment operating parameters to achieve automated or semi-automated management.

[0017] The right end of the transmission screw 11 is connected to the servo motor 10. This design allows the servo motor 10, as a power source, to precisely control the forward and reverse rotation of the transmission screw 11, thereby driving the screw sleeve 12 and the moving plate 13 to perform horizontal reciprocating motion. The upper end of the corrugated rubber tube 18 is connected to the air supply duct 5. The added corrugated rubber tube 18, with its flexibility and extensibility, ensures that the airflow channel between the air supply duct 5 and the honeycomb square tube 17 remains connected during the horizontal movement of the moving plate 13, ensuring the continuous and effective operation of the air supply system during movement.

[0018] The front and rear ends of the movable plate 13 slide against the inner wall of the storage bin 1. This tight sliding fit design ensures the stability and straightness of the movable plate 13 during horizontal movement, while effectively reducing the gap between it and the bin wall, preventing grain particles from entering the equipment operating area and causing blockage or wear.

[0019] As a second embodiment of this utility model: Open the arc-shaped top cover 2 or the side door 3, and load dry, clean grain into the storage silo 1. Then close all silo doors and the top cover to form a basically sealed storage environment. The insect-proof frame 7 installed on the side door 3 and the upper part of the air duct 5 constitutes a crucial double physical barrier. The stainless steel insect-proof mesh 8 (usually with a larger mesh count and high strength, used to block slightly larger pests and debris) and the nylon insect-proof mesh 9 (usually with a finer mesh count, used to block tiny pests) work together to prevent internal and external pests from entering the silo through the ventilation openings and door gaps to the greatest extent possible.

[0020] The operator starts the blower 6 and servo motor 10 via the control panel 4. The blower 6 draws in outside air through the insect-proof net at the top of the air duct 5, and delivers it via the corrugated rubber hose 18 to the honeycomb square tube 17 at the bottom of the moving plate 13. The honeycomb square tube 17 disperses the air into the grain pile, achieving forced ventilation. This process effectively reduces the temperature and humidity inside the grain pile, disrupting the suitable growth and reproduction environment for pests. The servo motor 10 drives the transmission screw 11 to rotate. Two threaded sleeves 12, connected to the transmission screw 11, drive the moving plate 13 at its lower end to reciprocate horizontally along the silo body as the screw rotates, thereby driving the two stirring motors 14 and the honeycomb square tube 17 to move accordingly. Simultaneously, the two stirring motors 14 are activated, driving the stirring shaft 15 and the spiral stirring blades 16 to rotate. The moving spiral stirring blades 16 continuously agitate and loosen the grain as they pass through the grain layer. This system breaks up potential pest nests or areas of high humidity and heat, and allows for more even airflow through the grain pile, greatly improving ventilation efficiency and effectiveness. This creates a more uniform environment throughout the grain pile, making it less conducive to localized pest growth. As the moving plate 13 reciprocates, the corrugated rubber hose 18 expands and contracts accordingly, ensuring unobstructed airflow. Through continuous physical barriers and active ventilation and agitation, the storage area is maintained at a low temperature, low humidity, and without stable habitats, effectively inhibiting the breeding, reproduction, and colonization of pests. Furthermore, regularly inspecting and cleaning the insect-proof netting to prevent clogged mesh from affecting ventilation, and regularly lubricating and maintaining the moving parts, ensures long-term stable operation of the equipment.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An insect-proof grain storage warehouse, comprising a storage warehouse body (1) and a movable plate (13), characterized in that: A side door (3) is installed on the lower right side of the storage compartment (1) via a hinge. An air supply duct (5) is installed in the middle of the upper part of the storage compartment (1). A fan (6) is installed inside the air supply duct (5). Insect-proof frames (7) are installed on the right side of the side door (3) and on the upper part of the air supply duct (5). Stainless steel insect-proof nets (8) and nylon insect-proof nets (9) are installed inside the insect-proof frames (7). A servo motor (10) is installed on the upper right side of the storage compartment (1). A transmission screw (11) is horizontally installed inside the upper part of the storage compartment (1) via a bearing. Two threaded sleeves (12) are installed on the outside of the rod (11) by threads. The moving plate (13) is fixed at the lower end of the two threaded sleeves (12). A stirring motor (14) is installed on the left and right sides of the upper end of the moving plate (13). The shaft ends of the two stirring motors (14) pass through the moving plate (13) and are connected to the stirring shaft (15). Spiral stirring blades (16) are provided on the outside of the two stirring shafts (15). A honeycomb square tube (17) is fixed in the middle of the lower end of the moving plate (13). The upper end of the honeycomb square tube (17) passes through the moving plate (13) and is connected to the corrugated rubber tube (18).

2. The insect-proof grain storage warehouse according to claim 1, characterized in that: The upper left side of the storage compartment (1) is fitted with an arc-shaped cover (2) via a hinge.

3. The insect-proof grain storage warehouse according to claim 1, characterized in that: The front right side of the storage tank (1) is equipped with a control panel (4), which is connected to the fan (6), servo motor (10) and two stirring motors (14) via wires.

4. The insect-proof grain storage warehouse according to claim 1, characterized in that: The right end of the transmission screw (11) is connected to the servo motor (10).

5. The insect-proof grain storage warehouse according to claim 1, characterized in that: The upper end of the corrugated rubber tube (18) is connected to the air supply tube (5).

6. The insect-proof grain storage warehouse according to claim 1, characterized in that: The front and rear ends of the movable plate (13) slide against the inner wall of the storage compartment (1).