Low-resistance multi-stage filtering air intake structure for grain storage air conditioner

By designing push rods and snap-fit ​​components, combined with motor-driven guide vanes and knobs, the grain silo air conditioning filter plates can be easily disassembled and assembled, solving the problem of cumbersome filter plate disassembly and assembly, improving maintenance efficiency and equipment stability, and reducing maintenance costs and grain storage risks.

CN224538869UActive Publication Date: 2026-07-24TAIZHOU TAIHAI STORAGE EQUIP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU TAIHAI STORAGE EQUIP CO LTD
Filing Date
2025-09-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing grain silo air conditioning filter panels are cumbersome to disassemble and assemble, requiring specialized tools, resulting in long maintenance cycles, high manpower costs, and impacting grain storage safety and equipment maintenance costs.

Method used

The design incorporates a sliding push rod and snap-fit ​​assembly, along with a motor-driven guide vane and knob, enabling easy assembly and disassembly of the filter plate and guide vane. The filter plate can be removed by pressing the push rod upwards to release the limit, and the guide vane can be cleaned by turning the knob, simplifying the operation process.

Benefits of technology

It significantly shortens the downtime maintenance cycle, saves manpower and resources, reduces equipment damage and repair costs, ensures filtration efficiency, reduces the risk of grain mold and pests, provides stable and clean airflow, and ensures grain storage safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224538869U_ABST
    Figure CN224538869U_ABST
Patent Text Reader

Abstract

The utility model relates to air -conditioning air intake structure technical field discloses granary air conditioner low resistance multistage filtering air intake structure, including the mounting frame, the sliding joint of mounting frame inner wall has the push rod, the push rod inner wall is connected with the filter plate through the buckle subassembly, to be used for the dismounting of filter plate, the mounting frame bottom is provided with the connecting frame, the connecting frame inner wall is fixedly connected with the motor, the motor drive end is connected with the guide vane through the rotation subassembly, to be used for driving guide vane rotation, the both sides of connecting frame inner wall are rotatably connected with the knob, the knob right end is connected with the mounting frame through the clamp component. In the utility model, by pressing the push rod upwards, the limiting of the filter plate is removed, the filter plate can be taken down to the right, professional tools are not needed, the dismounting process is greatly simplified, manpower and time are saved, the downtime maintenance period is shortened, the filter plate can be cleaned or replaced in time, the filtering efficiency is maintained, the risk of grain mildew and insect damage is reduced, and the equipment damage and maintenance cost are reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of air conditioning intake structure technology, and in particular to a low-resistance multi-stage filtration intake structure for grain warehouse air conditioning. Background Technology

[0002] The core function of the air intake filter structure of the grain warehouse air conditioner is to efficiently intercept dust, impurities, insect eggs and moisture in the air through a low-resistance multi-stage filtration design. At the same time, it guides the airflow smoothly to deliver clean and dry air to the grain warehouse, reduce the wear and tear of air conditioning components, reduce energy consumption, and maintain a suitable grain storage environment in the grain warehouse to prevent grain from becoming moldy, deteriorating or being damaged by insects, thus ensuring the safety and quality of stored grain.

[0003] In the traditional design of air intake systems for grain depot air conditioning, filter plates are often fixedly installed, such as by being rigidly connected with multiple bolts or directly welded to the intake frame. This structure makes the process of disassembling and assembling the filter plates cumbersome, requiring the use of professional tools to operate step by step. This not only consumes a lot of manpower and time, but also extends the system downtime maintenance cycle. In response to the technical problem of difficulty in disassembling and assembling the filter plate, this application proposes a low-resistance multi-stage filtration air intake structure for grain warehouse air conditioners. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where it is difficult to disassemble and assemble filter plates. The proposed low-resistance multi-stage filtration intake structure for grain storage air conditioners allows the filter plate to be removed to the right by pressing the push rod upwards to release the restriction on the filter plate. No special tools are required, which greatly simplifies the disassembly and assembly process, saves manpower and time, shortens the downtime maintenance cycle, facilitates timely cleaning or replacement of the filter plate, maintains filtration efficiency, reduces the risk of grain mold and pests, and lowers equipment damage and maintenance costs.

[0005] To achieve the above objectives, the present invention provides the following technical solution: The grain storage air conditioner features a low-resistance multi-stage filtration intake structure, including a mounting frame. A push rod is slidably connected to the inner wall of the mounting frame, and a filter plate is connected to the inner wall of the push rod via a snap-fit ​​assembly for assembling and disassembling the filter plate. A connecting frame is located at the bottom of the mounting frame, and a motor is fixedly connected to the inner wall of the connecting frame. The motor drive end is connected to a guide vane via a rotating assembly for rotating the guide vane. Knobs are rotatably connected to both sides of the inner wall of the connecting frame, and the right end of each knob is connected to the mounting frame via a clamp assembly for assembling and disassembling the connecting frame. The outer walls of the guide vanes are rotatably connected to the inner wall of the connecting frame. The filter plate includes a coarse filter layer, a medium filter layer, and a fine filter layer.

[0006] Furthermore, the buckle assembly includes a connecting plate fixedly connected to the right end of the filter plate, and each connecting plate has a slot on its inner wall.

[0007] Furthermore, a card block is provided on the inner wall of the card slot, the shape of the card block is matched with the card slot, and the outer wall of the card block is slidably connected to the inner wall of the mounting frame.

[0008] Furthermore, a telescopic rod is rotatably connected to the inner wall of the push rod, a torsion spring is fixedly connected to the right end of the telescopic rod, the other end of the torsion spring is rotatably connected to the inner wall of the mounting frame, the left end of the telescopic rod is rotatably connected to the inner wall of the mounting frame, and the other end of the telescopic rod is rotatably connected to the inner wall of the locking block.

[0009] Furthermore, the rotating assembly includes a main bevel gear fixedly connected to the motor drive end, and the outer walls of the main bevel gear are all meshed with secondary bevel gears, the right ends of the secondary bevel gears are all fixedly connected to the left end of the guide vane.

[0010] Furthermore, the caliper assembly includes a fixed frame that is fixedly connected to both sides of the bottom end of the mounting frame, and the inner wall of the fixed frame is provided with a second caliper groove.

[0011] Furthermore, each of the inner walls of the card slots is provided with a card block, the shape of which matches the card slot, and the outer walls of the card blocks are slidably connected to the inner wall of the connecting frame.

[0012] Furthermore, each knob has a threaded rod fixedly connected to its right end, and the outer wall of the threaded rod is threaded to the inner wall of the second locking block.

[0013] This utility model has the following beneficial effects: In this invention, by pressing the push rod upwards to release the limit on the filter plate, the filter plate can be removed to the right without the need for professional tools, greatly simplifying the disassembly and assembly process, saving manpower and time, shortening the downtime maintenance cycle, facilitating timely cleaning or replacement of the filter plate, maintaining filtration efficiency, reducing the risk of grain mold and pests, and reducing equipment damage and maintenance costs.

[0014] In this invention, by rotating the knob, the connecting frame can be removed and the guide vanes can be cleaned. This can promptly remove dust and impurities from the surface of the guide vanes, avoid uneven airflow distribution and increased resistance, maintain low resistance characteristics, reduce equipment wear, ensure the continuous and stable operation of the filtration system, provide clean airflow for the grain silo, and help maintain a safe environment for grain storage. Attached Figure Description

[0015] Figure 1 This is a perspective view of the low-resistance multi-stage filtration air intake structure for a grain storage air conditioner proposed in this utility model. Figure 2 This is a right-side sectional view of the mounting frame of the low-resistance multi-stage filtration air intake structure for grain storage air conditioners proposed in this utility model. Figure 3 This is a top side sectional view of the mounting frame of the low-resistance multi-stage filtration air intake structure for grain warehouse air conditioning proposed in this utility model. Figure 4 This is a structural diagram of the slot of the low-resistance multi-stage filtration air intake structure for grain warehouse air conditioners proposed in this utility model. Figure 5 This is a cross-sectional view of the mounting frame of the low-resistance multi-stage filtration air intake structure for grain warehouse air conditioning proposed in this utility model. Figure 6 This is a two-section view of the card block of the low-resistance multi-stage filtration air intake structure for grain warehouse air conditioning proposed in this utility model.

[0016] Legend: 1. Mounting frame; 2. Push rod; 3. Telescopic rod; 4. Torsion spring; 5. Locking block one; 6. Connecting plate; 7. Locking slot one; 8. Filter plate; 9. Connecting frame; 10. Motor; 11. Main bevel gear; 12. Secondary bevel gear; 13. Guide vane; 14. Knob; 15. Threaded rod; 16. Locking block two; 17. Fixing frame; 18. Locking slot two. Detailed Implementation

[0017] 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.

[0018] Reference Figures 2-4 As shown, one embodiment of this utility model provides a low-resistance multi-stage filtration air intake structure for a grain storage air conditioner, including an installation frame 1. A push rod 2 is slidably connected to the inner wall of the installation frame 1. A connecting plate 6 is fixedly connected to the right end of a filter plate 8. Each inner wall of the connecting plate 6 has a slot 7. A locking block 5 is provided on the inner wall of the slot 7. The shape of the locking block 5 matches the slot 7. The outer wall of the locking block 5 is slidably connected to the inner wall of the installation frame 1. A telescopic rod 3 is rotatably connected to the inner wall of the push rod 2. A torsion spring 4 is fixedly connected to the right end of the telescopic rod 3. The other end of the torsion spring 4 is rotatably connected to the inner wall of the installation frame 1. The left end of the telescopic rod 3 is rotatably connected to the inner wall of the installation frame 1. The other end of the telescopic rod 3 is rotatably connected to the inner wall of the locking block 5 for the assembly and disassembly of the filter plate 8. The filter plate 8 includes a coarse filter layer, a medium filter layer, and a fine filter layer.

[0019] Specifically, when installing filter plate 8, first press the push rod 2 and insert filter plate 8 into the mounting frame 1. After installation, release the push rod 2, and the torsion spring 4 will engage the locking block 5 into the slot 7 to complete the installation. The first coarse filter layer of filter plate 8 uses a high-pore metal mesh or coarse-pore filter to intercept large particles of dust and debris, reducing subsequent load. The second medium filter layer uses non-woven fabric or glass fiber to filter fine dust and pollen while maintaining air permeability. The third fine filter layer uses an adsorption layer with activated carbon or HEPA to adsorb moisture, odors, and microorganisms. The layers are staggered. The airflow channels are optimized to reduce overall resistance. The modular stacking assembly method ensures precise alignment by setting positioning slots or bosses between adjacent layers. The edges are fixed to the mounting frame with buckles, pins or quick bolts to form an integral structure. By pressing the push rod 2 upward, the limit on the filter plate 8 is released, and the filter plate 8 can be removed to the right. No professional tools are required, which greatly simplifies the disassembly and assembly process, saves manpower and time, shortens the downtime maintenance cycle, facilitates timely cleaning or replacement of the filter plate 8, maintains filtration efficiency, reduces the risk of grain mold and pests, and reduces equipment damage and maintenance costs.

[0020] Reference Figure 1 , Figure 5 and Figure 6 As shown, a connecting frame 9 is provided at the bottom of the mounting frame 1. A motor 10 is fixedly connected to the inner wall of the connecting frame 9. Knobs 14 are rotatably connected to both sides of the inner wall of the connecting frame 9. The outer walls of the guide vanes 13 are rotatably connected to the inner wall of the connecting frame 9. Multiple main bevel gears 11 are fixedly connected to the drive end of the motor 10. A secondary bevel gear 12 is meshed with the outer wall of each main bevel gear 11. The right end of each secondary bevel gear 12 is fixedly connected to the left end of the guide vane 13 to drive the guide vane 13 to rotate. Fixed frames 17 are fixedly connected to both sides of the bottom of the mounting frame 1. The inner wall of each fixed frame 17 is provided with a slot 18. The inner wall of each slot 18 is provided with a block 16. The shape of the block 16 matches the slot 18. The outer wall of the block 16 is slidably connected to the inner wall of the connecting frame 9. A threaded rod 15 is fixedly connected to the right end of each knob 14. The outer wall of the threaded rod 15 is threadedly connected to the inner wall of the block 16 for the assembly and disassembly of the connecting frame 9.

[0021] Specifically, when installing the guide vane 13 and the connecting frame 9, first insert the fixing frames 17 on both sides into the connecting frame 9. After installation, turn the knob 14 in the opposite direction to insert the two locking blocks 16 on both sides into the two locking slots 18 to complete the installation. By turning the knob 14, the connecting frame 9 can be removed and the guide vane 13 can be cleaned. This can remove dust and impurities from the surface of the guide vane 13 in a timely manner, avoid uneven airflow distribution and increased resistance, maintain low resistance characteristics, reduce equipment wear, ensure the continuous and stable operation of the filtration system, provide clean airflow for the grain silo, and help maintain a safe environment for grain storage.

[0022] Working principle: First, the mounting frame 1 is installed at the air conditioner outlet. The air is filtered by the filter plate 8 and guided by the guide vanes 13. When adjustment is needed, the motor 10 is controlled to drive multiple main bevel gears 11 to rotate. The main bevel gears 11 drive the secondary bevel gears 12 to rotate, and the secondary bevel gears 12 drive the guide vanes 13 to rotate, thus adjusting the airflow direction. When the filter plate 8 needs to be removed, simply press the push rod 2 upwards. The push rod 2 drives the telescopic rod 3 to rotate, and also drives the other side... Slide the first locking block 5 downwards to remove it from the first locking slot 7, releasing the restriction on the connecting plate 6 and the filter plate 8. Then, pull the connecting plate 6 and the filter plate 8 to the right to remove the filter plate 8. When it is necessary to disassemble and clean the guide vane 13, simply turn the knobs 14 on both sides. The knobs 14 drive the threaded rod 15 to rotate and drive the second locking block 16 on the outer wall to slide to the left, removing the second locking block 16 from the second locking slot 18. Then, the connecting frame 9 can be removed downwards for easy cleaning of the guide vane 13.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A low-resistance multi-stage filtration air intake structure for grain silo air conditioners, characterized in that: The system includes an installation frame (1), a push rod (2) is slidably connected to the inner wall of the installation frame (1), a filter plate (8) is connected to the inner wall of the push rod (2) by a snap-fit ​​assembly for disassembling and assembling the filter plate (8), a connecting frame (9) is provided at the bottom of the installation frame (1), a motor (10) is fixedly connected to the inner wall of the connecting frame (9), a guide vane (13) is connected to the driving end of the motor (10) by a rotating assembly for driving the guide vane (13) to rotate, a knob (14) is rotatably connected to both sides of the inner wall of the connecting frame (9), the right end of the knob (14) is connected to the installation frame (1) by a clamp assembly for disassembling and assembling the connecting frame (9), the outer wall of the guide vane (13) is rotatably connected to the inner wall of the connecting frame (9), and the filter plate (8) includes a coarse filter layer, a medium filter layer and a fine filter layer.

2. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 1, characterized in that: The buckle assembly includes a connecting plate (6) fixedly connected to the right end of the filter plate (8), and the inner wall of the connecting plate (6) is provided with a slot (7).

3. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 2, characterized in that: The inner wall of the slot (7) is provided with a block (5), the shape of the block (5) is matched with the slot (7), and the outer wall of the block (5) is slidably connected to the inner wall of the mounting frame (1).

4. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 3, characterized in that: The inner wall of the push rod (2) is rotatably connected to a telescopic rod (3). The right end of the telescopic rod (3) is fixedly connected to a torsion spring (4). The other end of the torsion spring (4) is rotatably connected to the inner wall of the mounting frame (1). The left end of the telescopic rod (3) is rotatably connected to the inner wall of the mounting frame (1). The other end of the telescopic rod (3) is rotatably connected to the inner wall of the first locking block (5).

5. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 1, characterized in that: The rotating assembly includes a main bevel gear (11) fixedly connected to the drive end of the motor (10), and a secondary bevel gear (12) meshing with the outer wall of the main bevel gear (11). The right end of the secondary bevel gear (12) is fixedly connected to the left end of the guide vane (13).

6. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 1, characterized in that: The caliper assembly includes a fixed frame (17) fixedly connected to both sides of the bottom end of the mounting frame (1), and the inner wall of the fixed frame (17) is provided with a caliper groove (18).

7. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 6, characterized in that: Each of the card slots (18) has a card block (16) on its inner wall. The shape of the card block (16) matches that of the card slot (18). The outer wall of the card block (16) is slidably connected to the inner wall of the connecting frame (9).

8. The low-resistance multi-stage filtration air intake structure for grain silo air conditioning according to claim 7, characterized in that: Each knob (14) has a threaded rod (15) fixedly connected to its right end, and the outer wall of the threaded rod (15) is threaded to the inner wall of the second locking block (16).