Refrigeration house air purification system
By designing pull rings and stepped rod mechanisms in the cold storage air purification system, the filter screen can be quickly disassembled, solving the problem of having to disassemble all related components to replace the filter screen, thus reducing operational complexity and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINHE ELECTROMECHANICAL EQUIP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-24
AI Technical Summary
Replacing filters in cold storage requires the complete disassembly of related components, which is a complex operation and increases labor and time costs.
Pulling the pull ring moves the stepped rod, which in turn moves the connecting plate and the insert rod, thus pulling the insert rod out of the insertion hole, releasing the fixed limit on the filter screen, and achieving a quick-release effect.
It simplifies the filter replacement process and reduces labor and time costs.
Smart Images

Figure CN224162816U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cold storage air purification technology, specifically a cold storage air purification system. Background Technology
[0002] Cold storage facilities are equipment that use artificially created low-temperature environments to store temperature-sensitive items such as food, medicine, and vaccines, thereby extending their shelf life. During long-term use, cold storage facilities are prone to bacterial growth, especially when storing fresh produce. They can also produce harmful gases such as ethylene, carbon dioxide, and hydrogen sulfide, affecting storage effectiveness and safety. Therefore, cold storage facilities require internal air purification, which involves circulating the air within the facility and passing it through filtration components for purification.
[0003] Conventional filter installation methods are limited, disassembly and maintenance are inconvenient, and filter replacement requires the complete disassembly of related components, which is complex and increases labor and time costs. Therefore, a cold storage air purification system is proposed to overcome the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a cold storage air purification system. By pulling the pull ring, the step rod moves, and the step rod moves the connecting plate and the insertion rod, thereby pulling the insertion rod out of the insertion hole, releasing the fixed limit on the filter screen, achieving a quick disassembly effect. This solves the problem that filter screen replacement requires the complete disassembly of related components, which is complicated and increases labor and time costs.
[0005] This utility model is achieved through the following technical solution:
[0006] This utility model relates to a cold storage air purification system, comprising a cold storage and a limiting mechanism. A filter box is provided on one side of the cold storage, and an installation groove is provided on one side of the filter box. A filter screen is provided inside the installation groove. A pair of through holes are provided on one side of the installation groove, and an insertion hole corresponding to the through hole is provided on one side of the filter screen. The limiting mechanism includes a U-shaped frame with a sliding hole. A stepped rod is fitted inside the sliding hole. A connecting plate is provided at one end of the stepped rod, and a pair of insertion rods are provided on one side of the connecting plate. The pair of insertion rods are inserted into the through hole and the insertion hole. A spring is sleeved on the outside of the thin end of the stepped rod. One end of the spring is connected to the U-shaped frame, and the other end is connected to the insertion rod.
[0007] Furthermore, a pull ring is provided at the other end of the step bar.
[0008] Furthermore, an exhaust fan is installed on top of the filter box.
[0009] Furthermore, the top of the filter box is connected to a first connecting pipe, one end of which is connected to a first horizontal pipe. Three first conveying pipes are connected to the first horizontal pipe, and air outlets are evenly distributed at the bottom of the first conveying pipes, extending into the interior of the cold storage.
[0010] Furthermore, a second connecting pipe is connected to the bottom of the filter box, a second horizontal pipe is connected to one end of the second connecting pipe, a second conveying pipe is provided at both ends of the second horizontal pipe, and air inlets are evenly distributed on one side of the second conveying pipe, with the air inlets extending into the interior of the cold storage.
[0011] This utility model has the following beneficial effects:
[0012] This invention uses a pull ring to move a stepped rod, which in turn moves a connecting plate and a plug rod, thereby pulling the plug rod out of the insertion hole and releasing the fixed limit on the filter screen. This achieves a quick disassembly effect and solves the problem that replacing the filter screen requires disassembling all related parts, which is complicated and increases labor and time costs.
[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the cold storage structure;
[0015] Figure 2 This is a schematic diagram of the cold storage and filter box structure;
[0016] Figure 3 This is a schematic diagram of the internal structure of the filter box;
[0017] Figure 4 This is a schematic diagram of the limiting mechanism.
[0018] In the diagram: 1. Cold storage; 2. Filter box; 201. Mounting groove; 202. Through hole; 3. Exhaust fan; 4. First connecting pipe; 5. First horizontal pipe; 6. First conveying pipe; 7. Second connecting pipe; 8. Second horizontal pipe; 9. Second conveying pipe; 10. Limiting mechanism; 1001. U-shaped frame; 1002. Sliding hole; 1003. Step rod; 1004. Pull ring; 1005. Connecting plate; 1006. Insert rod; 1007. Spring; 11. Filter screen; 1101. Insertion hole. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1-4This utility model provides a technical solution: a cold storage air purification system, including a cold storage 1 and a limiting mechanism 10. A filter box 2 is provided on one side of the cold storage 1, and an installation groove 201 is opened on one side of the filter box 2. A filter screen 11 is installed inside the installation groove 201. The filter box 2, as the core unit of air treatment, intercepts particulate matter such as dust, microorganisms, and ice crystals in the air of the cold storage 1 through the internally installed filter screen 11, preventing pollutants from re-entering the circulation system. A pair of through holes 202 are opened on one side of the installation groove 201, and an insertion hole 1101 corresponding to the through holes 202 is opened on one side of the filter screen 11. The limiting mechanism 10 includes a U-shaped frame 1001, and a sliding hole 1002 is opened on the U-shaped frame 1001. The internal part of 1002 is fitted with a stepped rod 1003. The U-shaped frame 1001 and the stepped rod 1003 form a sliding locking mechanism. One end of the stepped rod 1003 is provided with a connecting plate 1005. A pair of insert rods 1006 are provided on one side of the connecting plate 1005. The pair of insert rods 1006 are inserted into the through hole 202 and the insertion hole 1101. The mechanical fixation of the filter screen 11 is achieved by inserting the insert rods 1006 into the through hole 202 and the insertion hole 1101. A spring 1007 is sleeved on the outside of the thin end of the stepped rod 1003. The spring 1007 provides a continuous clamping force to offset the risk of loosening caused by vibration during equipment operation and ensure sealing. One end of the spring 1007 is connected to the U-shaped frame 1001 and the other end is connected to the insert rod 1006.
[0021] The other end of the step bar 1003 is equipped with a pull ring 1004. The pull ring 1004 can quickly unlock the filter screen 11 by manually pulling the step bar 1003 to overcome the spring force, which is convenient for maintenance.
[0022] By pulling the pull ring 1004, the step rod 1003 is moved, and the step rod 1003 moves the connecting plate 1005 and the insertion rod 1006, thereby pulling the insertion rod 1006 out of the insertion hole 1101, releasing the fixed limit on the filter screen 11, achieving the effect of quick disassembly, and solving the problem that replacing the filter screen 11 requires the overall disassembly of related parts, which is complicated and increases labor and time costs.
[0023] The top of the filter box 2 is equipped with an exhaust fan 3, which drives air from the cold storage 1 into the filter box 2 through the second conveying pipe 9, and after purification, it is redistributed through the first horizontal pipe 5.
[0024] The top of the filter box 2 is connected to a first connecting pipe 4, which is used to connect the filter box 2 and the first horizontal pipe 5. One end of the first connecting pipe 4 is connected to the first horizontal pipe 5, and three first conveying pipes 6 are connected to the first horizontal pipe 5. Air outlets are evenly distributed at the bottom of the first conveying pipes 6, and the air outlets extend into the interior of the cold storage 1. The first horizontal pipe 5 and the first conveying pipes 6 are designed with a multi-branch distributed air supply, and the evenly distributed air outlets achieve full coverage of the upper space of the cold storage 1, avoiding dead corners.
[0025] The bottom of the filter box 2 is connected to a second connecting pipe 7, which is used to connect the filter box 2 and the second horizontal pipe 8. One end of the second connecting pipe 7 is connected to the second horizontal pipe 8. The two ends of the second horizontal pipe 8 are respectively provided with second conveying pipes 9. Air inlets are evenly distributed on one side of the second conveying pipe 9, and the air inlets extend into the interior of the cold storage 1. The bottom air inlet layout of the second horizontal pipe 8 and the second conveying pipe 9 promotes vertical air circulation in the cold storage 1 and enhances convection efficiency by utilizing the sinking characteristics of cold air.
[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A cold storage air purification system, comprising a cold storage (1) and a limiting mechanism (10), characterized in that: A filter box (2) is provided on one side of the cold storage (1), and an installation groove (201) is provided on one side of the filter box (2), and a filter screen (11) is provided inside the installation groove (201); A pair of through holes (202) are provided on one side of the mounting groove (201), and an insertion hole (1101) corresponding to the through holes (202) is provided on one side of the filter screen (11). The limiting mechanism (10) includes a U-shaped frame (1001), on which a sliding hole (1002) is provided. A stepped rod (1003) is fitted inside the sliding hole (1002). A connecting plate (1005) is provided at one end of the stepped rod (1003). A pair of insert rods (1006) are provided on one side of the connecting plate (1005). The pair of insert rods (1006) are inserted into the through hole (202) and the insertion hole (1101). A spring (1007) is sleeved on the thin end of the stepped rod (1003). One end of the spring (1007) is connected to the U-shaped frame (1001), and the other end is connected to the insert rod (1006).
2. The cold storage air purification system according to claim 1, characterized in that, The other end of the stepped rod (1003) is provided with a pull ring (1004).
3. The cold storage air purification system according to claim 1, characterized in that, The top of the filter box (2) is equipped with an exhaust fan (3).
4. A cold storage air purification system according to claim 3, characterized in that, The top of the filter box (2) is connected to a first connecting pipe (4), one end of the first connecting pipe (4) is connected to a first horizontal pipe (5), and three first conveying pipes (6) are connected to the first horizontal pipe (5). The bottom end of the first conveying pipe (6) is evenly provided with air outlets, and the air outlets extend into the interior of the cold storage (1).
5. A cold storage air purification system according to claim 4, characterized in that, The bottom of the filter box (2) is connected to a second connecting pipe (7), one end of the second connecting pipe (7) is connected to a second horizontal pipe (8), and the two ends of the second horizontal pipe (8) are respectively provided with second conveying pipes (9). Air inlets are evenly distributed on one side of the second conveying pipe (9), and the air inlets extend into the interior of the cold storage (1).