A grain storage insect prevention ventilation and heat dissipation device

By using magnetic levitation fans and multi-layered insect-proof structure design, the problems of uneven ventilation and insufficient insect protection in grain storage are solved, achieving efficient ventilation and pest protection, reducing the risk of mold and workload.

CN224306412UActive Publication Date: 2026-06-02MAANSHAN JUNNONG AGRICULTURAL PLANTING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAANSHAN JUNNONG AGRICULTURAL PLANTING CO LTD
Filing Date
2025-07-11
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing grain storage ventilation systems are ineffective, leading to localized high temperatures and humidity, a high risk of mold growth, and limited pest control measures that fail to effectively prevent the invasion of small pests.

Method used

The system employs a magnetic levitation fan, main ventilation duct, T-junction, and irregularly shaped ventilation duct structure, combined with insect-proof netting and insect-proof inclined electric grid, to form a multi-layered protection system. It utilizes an insect-attracting mechanism to actively attract pests and automatically collect their corpses.

Benefits of technology

This improved air circulation efficiency within the grain pile, reduced the risk of mold, effectively prevented pest intrusion, reduced manual cleaning workload, and maintained efficient operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224306412U_ABST
Patent Text Reader

Abstract

This utility model discloses a grain storage insect-proof ventilation and heat dissipation device, relating to the field of grain storage technology. It includes a magnetic levitation fan, with a main ventilation pipe fixedly installed at the air inlet of the fan. A T-junction pipe is fixedly installed at the other end of the main ventilation pipe. Multiple sets of irregularly shaped ventilation pipes are fixedly connected to the outer wall of the T-junction pipe. A vertical pipe is installed through the lower end of the main ventilation pipe, and a detachable insect-attracting mechanism is installed at the lower end of the vertical pipe. An insect-proof inclined electric grid is installed inside the vertical pipe. This utility model, through the structural design of the magnetic levitation fan combined with the main ventilation pipe, T-junction pipe, and irregularly shaped ventilation pipes, can quickly and evenly deliver air to all parts of the grain storage. Compared with traditional ventilation methods, it can improve the efficiency of air circulation within the grain pile, effectively avoiding localized high temperature and high humidity problems caused by poor ventilation, and reducing the risk of grain mold.
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Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and in particular to a grain storage insect-proof ventilation and heat dissipation device. Background Technology

[0002] In the modern grain storage sector, grain storage plays a vital role in ensuring grain supply and stabilizing the grain market. With the increasing scale of agricultural production and the extension of grain storage cycles, the requirements for grain storage conditions are becoming more and more stringent, among which ventilation and heat dissipation, as well as pest control, are key aspects to ensure grain quality.

[0003] However, existing technologies for grain storage ventilation and heat dissipation devices have many shortcomings. On the one hand, the ventilation effect is poor, making it difficult to ensure that the air circulates evenly in the grain pile, resulting in higher temperature and humidity in some areas, which can easily cause grain to mold. On the other hand, the insect prevention measures are simple, relying only on simple insect nets, which cannot effectively prevent pests from entering the grain warehouse. In particular, some small pests and insect eggs can easily break through the defenses and damage the grain. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing a grain storage insect prevention, ventilation and heat dissipation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grain storage insect-proof ventilation and heat dissipation device, comprising a magnetic levitation fan, a main ventilation pipe fixedly installed at the air inlet of the magnetic levitation fan, a T-shaped pipe fixedly installed at the other end of the main ventilation pipe, multiple sets of irregularly shaped ventilation pipes fixedly connected to the outer wall of the T-shaped pipe, a vertical pipe installed through the lower end of the main ventilation pipe, a detachable insect-attracting mechanism installed at the lower end of the vertical pipe, and an insect-proof inclined electric grid installed inside the vertical pipe.

[0006] Preferably, an insect-proof net is installed inside the main ventilation duct, and a power module is installed at one end of the insect-attracting mechanism.

[0007] Preferably, the insect-proof tilting electric grid is electrically connected to the power supply module.

[0008] Preferably, a discharge pipe is installed through the outer wall of the vertical pipe, and the inclined end of the insect-proof tilting electric grid is located inside the discharge pipe.

[0009] Preferably, an installation component is fixedly installed at the lower end of the discharge pipe.

[0010] Preferably, a removable collection box is installed at the lower end of the mounting assembly.

[0011] Preferably, a sealing sleeve is installed on the outer wall of the main ventilation duct.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the structural design of magnetic levitation fan combined with main ventilation pipe, T-pipe and special-shaped ventilation pipe can quickly and evenly deliver air to all parts of the grain warehouse. Compared with traditional ventilation methods, it can improve the efficiency of air circulation in the grain pile, effectively avoid the problem of local high temperature and high humidity caused by poor ventilation, and reduce the risk of grain mold.

[0014] 2. In this utility model, the insect-proof net inside the main ventilation pipe can block larger pests from entering, and the insect-proof inclined electric net inside the vertical pipe further intercepts pests. Combined with the insect-attracting mechanism, it actively attracts pests, forming a multi-layer protection system from the outside to the inside, reducing the invasion rate of pests and greatly reducing the damage of pests to grains.

[0015] 3. In this utility model, the combination of the insect-proof tilting electric grid with the discharge pipe and collection box allows the insect corpses to automatically slide down and be collected into the collection box, eliminating the need for frequent manual cleaning and reducing the labor intensity of workers; moreover, the collection box is detachable, which facilitates regular cleaning, keeps the device running continuously and efficiently, and reduces the risk of secondary pollution caused by the accumulation of insect corpses. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a grain storage insect-proof ventilation and heat dissipation device;

[0017] Figure 2 This utility model provides a schematic diagram of the internal front structure of the vertical tube of a grain storage insect-proof ventilation and heat dissipation device;

[0018] Figure 3 The present invention provides a bottom view of the main ventilation pipe, the tee pipe, and the irregularly shaped ventilation pipe of a grain storage insect-proof ventilation and heat dissipation device;

[0019] Figure 4 A side view of a grain storage insect-proof ventilation and heat dissipation device is provided for this utility model.

[0020] Legend: 1. Main ventilation duct; 2. Sealing sleeve; 3. T-junction; 4. Magnetic levitation fan; 5. Irregularly shaped ventilation duct; 6. Vertical pipe; 7. Insect-attracting mechanism; 8. Discharge pipe; 9. Insect-proof net; 10. Insect-proof tilting electric grid; 11. Power module; 12. Installation components; 13. Collection box. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a grain storage insect-proof ventilation and heat dissipation device, including a magnetic levitation fan 4, a main ventilation pipe 1 fixedly installed at the air inlet of the magnetic levitation fan 4, a three-way pipe 3 fixedly installed at the other end of the main ventilation pipe 1, a number of irregularly shaped ventilation pipes 5 fixedly connected to the outer wall of the three-way pipe 3, a vertical pipe 6 installed through the lower end of the main ventilation pipe 1, a detachable insect-attracting mechanism 7 installed at the lower end of the vertical pipe 6, an insect-proof inclined electric grid 10 installed inside the vertical pipe 6, an insect-proof net 9 installed inside the main ventilation pipe 1, a power module 11 installed at one end of the insect-attracting mechanism 7, the insect-proof inclined electric grid 10 being electrically connected to the power module 11, and a sealing sleeve 2 installed on the outer wall of the main ventilation pipe 1.

[0024] The specific settings and functions of this embodiment are described below. The magnetic levitation fan 4 adopts non-contact magnetic levitation bearing technology, which has extremely low friction during operation. Compared with traditional fans, it can effectively improve performance and has intelligent frequency conversion adjustment function. It can automatically adjust the speed according to the data fed back by the temperature and humidity sensor in the grain silo. The air inlet of the magnetic levitation fan 4 is fixedly connected to the main ventilation pipe 1 through a flange. A rubber sealing ring is provided at the connection to ensure a tight connection and no air leakage. The main ventilation pipe 1 is made of food-grade 304 stainless steel with a smooth inner wall, which can effectively reduce air flow resistance. Its pipe diameter is designed according to the volume of the grain silo and ventilation requirements.

[0025] The other end of the main ventilation pipe 1 is welded and fixed with a three-way pipe 3. Each of the three ports of the three-way pipe 3 is equipped with an adjustable valve. By rotating the valve, the air flow of each branch can be controlled to achieve precise ventilation. The outer wall of the three-way pipe 3 is fixedly connected to multiple sets of irregularly shaped ventilation pipes 5 through welding. The irregularly shaped ventilation pipes 5 are distributed in a spiral or wave shape in the grain silo. This unique shape and opening design can make the air form a three-dimensional circulation in the grain silo. Compared with traditional straight pipe ventilation, it increases the air coverage area and ensures that every corner of the grain pile can be fully ventilated.

[0026] The lower end of the main ventilation pipe 1 is connected by a threaded connection to a vertical pipe 6. The vertical pipe 6 is designed to be detachable, and a sealing threaded sleeve is provided at the connection between it and the main ventilation pipe 1 for easy disassembly and maintenance. The lower end of the vertical pipe 6 is equipped with a detachable insect-attracting mechanism 7 through a snap-fit ​​structure. The insect-attracting mechanism 7 uses an ultraviolet LED lamp as the insect-attracting light source, which has a strong attraction to common storage pests such as rice weevils and grain borers. The insect-attracting mechanism 7 is wrapped with a transparent protective cover. The protective cover is made of polycarbonate material, which has high strength and impact resistance, and can effectively prevent pests from escaping and external debris from entering.

[0027] An insect-proof inclined electric grid 10 is installed inside the vertical pipe 6 at an angle. The insect-proof inclined electric grid 10 is supported by two parallel insulating supports, and its inclination angle is 30-45 degrees. The insect-proof inclined electric grid 10 adopts an interlaced metal wire structure, which can effectively kill pests by electric shock and prevent large debris from clogging the electric grid. An insect-proof net 9 is installed inside the main ventilation pipe 1 near the air inlet through a slot. The insect-proof net 9 is made of 40-60 mesh stainless steel wire mesh, which can block larger pests such as moths and beetles from entering the ventilation system.

[0028] One end of the insect-attracting mechanism 7 is connected to a power module 11 via a waterproof junction box. The power module 11 has overvoltage, overcurrent, and leakage protection functions. The input voltage is 220V AC, and the output is safe DC voltage, providing stable power to the insect-proof tilting grid 10 and the insect-attracting mechanism 7. The outer wall of the main ventilation pipe 1 is fitted with a sealing sleeve 2. The sealing sleeve 2 is made of silicone rubber and is fixed by wrapping with fastening tape, which can prevent the main ventilation pipe 1 from being damaged during installation.

[0029] Example 2: Figure 1 , Figure 2 and Figure 4 As shown, a discharge pipe 8 is installed through the outer wall of the vertical pipe 6. The inclined end of the insect-proof inclined electric grid 10 is set inside the discharge pipe 8. An installation component 12 is fixedly installed at the lower end of the discharge pipe 8. A detachable collection box 13 is installed at the lower end of the installation component 12.

[0030] The overall effect of this embodiment is that a discharge pipe 8 is welded through the outer wall of the vertical pipe 6. The discharge pipe 8 is funnel-shaped, with a larger diameter at the top and a smaller diameter at the bottom. The inclined end of the insect-proof tilting electric grid 10 is aligned with the larger diameter end of the discharge pipe 8. The pests shocked by the insect-proof tilting electric grid 10 will slide down the discharge pipe 8 due to their own weight and the tilt angle. The lower end of the discharge pipe 8 is fixedly installed with an installation component 12 by a threaded connection. The installation component 12 includes a circular flange and multiple positioning pins. The top of the detachable collection box 13 is provided with positioning holes corresponding to the positioning pins and a sealing rubber ring. By aligning the positioning holes on the collection box 13 with the positioning pins of the installation component 12 and rotating to fix it, the collection box 13 can be quickly installed and disassembled, facilitating the centralized collection and cleaning of pest carcasses and keeping the inside of the grain silo clean.

[0031] The usage and working principle of this device are as follows: First, when the grain storage insect prevention, ventilation and heat dissipation device is activated, the magnetic levitation fan 4 starts to work. If the temperature and humidity of the grain pile are high, the magnetic levitation fan 4 will increase its speed and increase the air delivery volume; otherwise, it will reduce its speed to maintain basic ventilation needs. The air enters the main ventilation pipe 1 through the air inlet of the magnetic levitation fan 4, and under the tight connection between the flange and the rubber sealing ring, a portion of the air in the main ventilation pipe 1 flows to multiple sets of irregularly shaped ventilation pipes 5 through the three-way pipe 3. The adjustable valve at the port of the three-way pipe 3 can control the air flow of each branch by rotating it, ensuring that the air is accurately delivered to different areas in the grain silo as needed, greatly increasing the air coverage area, so that every corner of the grain pile can achieve efficient ventilation and air exchange, effectively removing heat and moisture.

[0032] Finally, another portion of the air flows downward through the vertical pipe 6 at the lower end of the main ventilation pipe 1. During this process, the stainless steel wire mesh insect-proof net 9 near the air inlet inside the main ventilation pipe 1 will intercept larger pests such as moths and beetles, preventing them from entering the ventilation system. The insect-attracting mechanism 7 at the lower end of the vertical pipe 6 uses ultraviolet LED lights to attract common storage pests such as rice weevils and grain borers. When the pests approach the interior of the vertical pipe 6, they will come into contact with the tilted insect-proof inclined electric grid 10. The electric field formed by the interlaced metal wire structure of the insect-proof inclined electric grid 10 will electrocute and kill the pests. Under the action of their own gravity, the electrocuted pests slide down the insect-proof inclined electric grid 10 to the discharge pipe 8 below.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A grain storage insect-proof ventilation and heat dissipation device, comprising a magnetic levitation fan (4), characterized in that: The air inlet of the magnetic levitation fan (4) is fixedly installed with a main ventilation pipe (1), and the other end of the main ventilation pipe (1) is fixedly installed with a three-way pipe (3). The outer wall of the three-way pipe (3) is fixedly connected to multiple sets of irregular ventilation pipes (5). The lower end of the main ventilation pipe (1) is installed with a vertical pipe (6), and the lower end of the vertical pipe (6) is installed with a detachable insect-attracting mechanism (7). The interior of the vertical pipe (6) is installed with an insect-proof tilting electric grid (10).

2. The grain storage insect-proof ventilation and heat dissipation device according to claim 1, characterized in that: The main ventilation pipe (1) is equipped with an insect-proof net (9), and one end of the insect-attracting mechanism (7) is equipped with a power module (11).

3. The grain storage insect-proof ventilation and heat dissipation device according to claim 2, characterized in that: The insect-proof tilting electric grid (10) is electrically connected to the power module (11).

4. The grain storage insect-proof ventilation and heat dissipation device according to claim 1, characterized in that: The outer wall of the vertical pipe (6) is through which the discharge pipe (8) is installed, and the inclined end of the insect-proof inclined electric grid (10) is located inside the discharge pipe (8).

5. A grain storage insect-proof ventilation and heat dissipation device according to claim 4, characterized in that: The lower end of the discharge pipe (8) is fixedly installed with an installation component (12).

6. A grain storage insect-proof ventilation and heat dissipation device according to claim 5, characterized in that: A removable collection box (13) is installed at the lower end of the installation assembly (12).

7. A grain storage insect-proof ventilation and heat dissipation device according to claim 1, characterized in that: The outer wall of the main ventilation pipe (1) is fitted with a sealing sleeve (2).