Magnetic plug-in ground cage ventilation control gate

The magnetic pin-type ground cage ventilation control gate solves the problem of inaccurate control of the air duct in grain storage warehouses, realizes the stable opening and closing of the air duct, improves ventilation efficiency, meets the ventilation needs of grain storage warehouses, and prevents grain particles from clogging.

CN224482237UActive Publication Date: 2026-07-14CENT GRAIN RESERVE ZHENGZHOU DIRECT STORAGE CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CENT GRAIN RESERVE ZHENGZHOU DIRECT STORAGE CO LTD
Filing Date
2025-08-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing ground-level ventilation ducts in grain storage warehouses are not easy to control precisely and cannot meet the adjustable ventilation requirements of grain storage warehouses.

Method used

Design a magnetic pin-type ventilation control gate for ground cages. The opening and closing of the air duct is achieved through the cooperation of the rotating shaft and the gate. Combined with the attraction of the limit plate and the magnet, the stability of the gate in different states is ensured. The setting of air outlet and positioning hole improves ventilation efficiency and prevents grain particles from clogging.

Benefits of technology

It achieves precise control over the air intake state of the air duct, improves ventilation efficiency, meets the adjustable ventilation needs of grain storage warehouses, and avoids grain particles clogging the equipment, ensuring the normal operation of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224482237U_ABST
    Figure CN224482237U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of magnetic suction bolt formula ground cage ventilation control gate, including air duct, air duct includes the bottom plate and top plate connected, top plate is arc, the middle part of air duct is installed rotatable pivot, pivot is installed with gate, gate and the cross section of bottom plate are compatible, second limit plate compatible with gate is installed on bottom plate, second limit plate is located on the central axis of bottom plate, top plate is installed with the first limit plate compatible with gate. The utility model has the beneficial effect that: by setting pivot and gate cooperation can be closed and opened to air duct, setting first limit plate and second limit plate can be positioned to gate when opening or closing gate, side plate can be adsorbed to gate, to enable gate to keep stable working condition when closing or opening air duct, realize the accurate control to air duct inlet state, satisfy the adjustable ventilation use demand of grain storage warehouse.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of grain storage ventilation equipment, and in particular to a magnetic pin-type ground cage ventilation control gate. Background Technology

[0002] Grain storage is a crucial link between farmland and the dining table, directly impacting food security, market stability, and efficient resource utilization. The core value of grain storage lies in ensuring food security. For example, national grain reserves can rapidly release stockpiles to stabilize supply during natural disasters or market fluctuations. The three major enemies of grain storage are high temperature, high humidity, and pests. Grain storage types must be adapted to storage needs. For instance, steel silos are low-cost and quick to construct, suitable for short-term turnover; concrete silos offer strong insulation, suitable for long-term storage. Furthermore, warehouse layout must consider ventilation efficiency; the common "row-and-column" arrangement reduces dead zones and facilitates mechanized operations. Modern grain storage uses fans, ventilation cages, and air conditioning systems to regulate the temperature and humidity of stored grain, controlling the temperature below 20℃ and maintaining humidity below 70%, improving the storage environment, inhibiting grain respiration, and delaying the degradation of grain quality. Controlled atmosphere storage technologies (such as nitrogen filling to reduce oxygen) can inhibit insect egg hatching and reduce the use of chemical agents. Some existing grain storage warehouses have ground-level ventilation ducts that are not easily controlled precisely, failing to meet the adjustable ventilation requirements of grain storage facilities. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of existing ground cage ventilation ducts in grain storage warehouses, which are not convenient for precise control and cannot meet the adjustable ventilation requirements of grain storage warehouses, and to provide a magnetic plug-type ground cage ventilation control gate.

[0004] The purpose of this utility model is achieved through the following technical solution: a magnetic plug-type ground cage ventilation control gate, including an air duct, the air duct including a bottom plate and a top plate connected to each other, the top plate being arc-shaped, a rotatable shaft installed in the middle of the air duct, a gate installed on the shaft, the gate being adapted to the cross-section of the bottom plate, a second limiting plate adapted to the gate being installed on the bottom plate, the second limiting plate being located on the central axis of the bottom plate, and a first limiting plate adapted to the gate being installed on the top plate;

[0005] Both the first and second limiting plates include reinforcing plates and side plates. The side plates are responsible for limiting the gate. The gate is made of stainless steel, and magnets corresponding to the gate are installed on the side plates.

[0006] By setting a rotating shaft and a gate in conjunction, the air duct can be closed and opened. The first and second limit plates can limit the gate when it is opened or closed. The side plate can attract the gate, so that the gate can maintain a stable working state when the air duct is closed or opened, achieving precise control of the air intake state of the air duct and meeting the adjustable ventilation needs of the grain storage warehouse.

[0007] A further technical solution is that the top plate includes an air inlet and an air outlet, with a rotating shaft positioned between the air inlet and the air outlet. The air outlet has equally spaced air outlet holes, which are rectangular in shape with a length of 15mm and a width of 2mm. By setting equally spaced air outlet holes on the air outlet, the ventilation efficiency at the top of the air outlet can be effectively improved, thereby enhancing the ventilation effect of the air duct and meeting the ventilation requirements of the grain silo.

[0008] A further technical solution involves providing a first positioning hole and a second positioning hole on the top plate. The first positioning hole is located on the central axis of the top plate, and the second positioning hole is located on the cross-section between the air inlet and outlet. A latch adapted to the first and second positioning holes is installed on the gate. By providing the first and second positioning holes, the gate can be fixed in place by the latch on the gate in cooperation with the first or second positioning hole when the air duct is open or closed, further improving the stability of the gate's maintenance state and ensuring the stable opening or closing of the air duct. At the same time, the first and second positioning holes are located on the top plate, allowing their openings to face downwards, thereby preventing grain particles in the grain bin from falling into the first and second positioning holes and avoiding blockage, thus ensuring the normal operation of the equipment.

[0009] A further technical solution is to arrange the reinforcing plate and side plate in an L-shape. By arranging the reinforcing plate and side plate in an L-shape, the support of the reinforcing plate on the side plate is improved, thereby ensuring the strength of the side plate and increasing its service life.

[0010] A further technical solution is to install bearings on both the base plate and the top plate, with the two ends of the rotating shaft connected to the inner rings of the two sets of bearings respectively. By setting the two ends of the rotating shaft to be connected to the inner rings of the two sets of bearings respectively, the rotating shaft can rotate more smoothly and improve the convenience of operation.

[0011] A further technical solution is to install a U-shaped handle on the upper part of the top plate. By setting the U-shaped handle, it is easier for workers to move the plate during installation, thus improving the ease of use.

[0012] A further technical solution is to install an overlap at the front end of the top plate. By setting the overlap, the air inlet and outlet ends of the two connected groups can overlap, thereby improving the sealing between the two connected groups.

[0013] This utility model has the following advantages: By setting a rotating shaft and a gate in cooperation, the air duct can be closed and opened. The first and second limiting plates can limit the gate when it is opened or closed. The side plate can attract the gate, so that the gate can maintain a stable working state when the air duct is closed or opened, and achieve precise control of the air intake state of the air duct, thus meeting the adjustable ventilation requirements of the grain storage warehouse. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the air duct of this utility model in the open state;

[0015] Figure 2 This is a three-dimensional structural diagram of the air duct in the closed state of this utility model.

[0016] Figure 3 This is a cross-sectional view of the air duct in the closed state of this utility model;

[0017] Figure 4 This is a schematic diagram of the top plate structure of this utility model from below;

[0018] In the diagram, 1 is the air duct; 101 is the base plate; 102 is the top plate; 1021 is the air inlet; 1022 is the air outlet; 2 is the rotating shaft; 3 is the gate; 4 is the first limiting plate; 5 is the second limiting plate; 6 is the reinforcing plate; 7 is the side plate; 8 is the magnet; 9 is the first positioning hole; 10 is the second positioning hole; 11 is the pin; 12 is the bearing; 13 is the air outlet; 14 is the U-shaped handle; and 15 is the overlapping edge. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] like Figures 1-4 As shown, a magnetic latch-type ground cage ventilation control gate includes an air duct, which includes a connected bottom plate and a top plate. The top plate is arc-shaped. A rotatable shaft is installed in the middle of the air duct, and a gate is installed on the shaft. The gate is adapted to the cross-section of the bottom plate. A second limiting plate adapted to the gate is installed on the bottom plate. The second limiting plate is located on the central axis of the bottom plate. A first limiting plate adapted to the gate is installed on the top plate.

[0026] Both the first and second limiting plates include reinforcing plates and side plates. The side plates are responsible for limiting the gate. The gate is made of stainless steel, and magnets corresponding to the gate are installed on the side plates.

[0027] By setting a rotating shaft and a gate in conjunction, the air duct can be closed and opened. The first and second limit plates can limit the gate when it is opened or closed. The side plate can attract the gate, so that the gate can maintain a stable working state when the air duct is closed or opened, achieving precise control of the air intake state of the air duct and meeting the adjustable ventilation needs of the grain storage warehouse.

[0028] The top plate 102 includes an air inlet 1021 and an air outlet 1022. The rotating shaft 2 is located between the air inlet 1021 and the air outlet 1022. The air outlet 1022 has air outlet holes 13 arranged at equal intervals. The air outlet holes 13 are rectangular with a length of 15mm and a width of 2mm. By setting the air outlet holes 13 at equal intervals on the air outlet 1022, the ventilation efficiency of the top of the air outlet 1022 can be effectively improved, thereby improving the ventilation effect of the air duct 1 and meeting the ventilation requirements of the grain silo. The rectangular arrangement of the air outlet holes 13 with a length of 15mm and a width of 2mm can prevent grain particles in the grain silo from entering the air duct 1 through the air outlet holes 13.

[0029] The top plate 102 is provided with a first positioning hole 9 and a second positioning hole 10. The first positioning hole 9 is located on the central axis of the top plate 102, and the second positioning hole 10 is located on the cross-section between the air inlet 1021 and the air outlet 1022. The gate 3 is equipped with a pin 11 that matches the first positioning hole 9 and the second positioning hole 10. By setting the first positioning hole and the second positioning hole, when the air duct is in the open or closed state, the pin on the gate can be used to fix the gate in cooperation with the first positioning hole or the second positioning hole, which further improves the stability of the gate's maintenance state and ensures the stable opening or closing state of the air duct. At the same time, the first positioning hole 9 and the second positioning hole 10 are located on the top plate 102, which allows the openings of the first positioning hole 9 and the second positioning hole 10 to be set downwards, thereby preventing grain particles in the grain bin from falling into the first positioning hole 9 and the second positioning hole 10, and preventing grain particles from clogging the first positioning hole 9 and the second positioning hole 10, thus ensuring the normal use of the equipment.

[0030] The reinforcing plate and side plate are arranged in an L-shape. By arranging the reinforcing plate and side plate in an L-shape, the support of the reinforcing plate on the side plate is improved, thereby ensuring the strength of the side plate and increasing its service life.

[0031] Bearings are installed on both the base plate and the top plate. The two ends of the rotating shaft are connected to the inner rings of the two sets of bearings respectively. By setting the two ends of the rotating shaft to be connected to the inner rings of the two sets of bearings respectively, the rotating shaft can rotate more smoothly and improve the convenience of operation.

[0032] A U-shaped handle 14 is installed on the upper part of the top plate 102. The U-shaped handle 14 makes it easier for workers to move the plate during installation, thus improving the ease of use.

[0033] The front end of the top plate 102 is equipped with an overlap 15. By setting the overlap 15, the air inlet and air outlet of the two connected groups 1 can overlap, thereby improving the sealing between the two connected groups 1.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic latch-type ground cage ventilation control gate, comprising an air duct (1), wherein the air duct (1) comprises a bottom plate (101) and a top plate (102) connected to each other, wherein the top plate (102) is arc-shaped, characterized in that: A rotatable shaft (2) is installed in the middle of the air duct (1). A gate (3) is installed on the shaft (2). The gate (3) is adapted to the cross-section of the base plate (101). A second limiting plate (5) adapted to the gate (3) is installed on the base plate (101). The second limiting plate (5) is located on the central axis of the base plate (101). A first limiting plate (4) adapted to the gate (3) is installed on the top plate (102). The first limiting plate (4) and the second limiting plate (5) both include a reinforcing plate (6) and a side plate (7). The side plate (7) is responsible for limiting the gate (3). The gate (3) is made of stainless steel. A magnet (8) corresponding to the gate (3) is installed on the side plate (7).

2. The magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: The top plate (102) includes an air inlet (1021) and an air outlet (1022). The rotating shaft (2) is disposed between the air inlet (1021) and the air outlet (1022). The air outlet (1022) has air outlet holes (13) arranged at equal intervals. The air outlet holes (13) are rectangular in shape with a length of 15mm and a width of 2mm.

3. A magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: The top plate (102) is provided with a first positioning hole (9) and a second positioning hole (10). The first positioning hole (9) is located on the central axis of the top plate (102), and the second positioning hole (10) is located on the cross section between the air inlet (1021) and the air outlet (1022). The gate (3) is equipped with a pin (11) that matches the first positioning hole (9) and the second positioning hole (10).

4. A magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: The reinforcing plate (6) and the side plate (7) are arranged in an L-shape.

5. A magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: Bearings (12) are installed on both the bottom plate (101) and the top plate (102), and the two ends of the rotating shaft (2) are respectively connected to the inner rings of the two sets of bearings (12).

6. A magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: A U-shaped handle (14) is installed on the upper part of the top plate (102).

7. A magnetic latch-type ground cage ventilation control gate according to claim 1, characterized in that: The top plate (102) has an overlap (15) installed at its front end.