Environment-friendly fresh air handling unit convenient to clean
By designing filter replacement and dustproof components, the cumbersome problem of extracting individual filters during fresh air system filter replacement has been solved. This allows for the simultaneous replacement of multiple filter plates and dustproofing, improving the efficiency of fresh air systems and air quality.
Patent Information
- Application Number
- CN202520011280.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Current air purifiers can only remove one filter at a time when replacing the filter, making it impossible to remove multiple filter compartments at the same time. This makes the replacement process cumbersome and reduces efficiency.
A filter replacement assembly was designed, which connects multiple filter plates via a sliding rod and a handle, allowing multiple filter plates to be extracted simultaneously. It is also equipped with a dustproof component to prevent dust from spreading.
It enables the simultaneous replacement of multiple filter plates, simplifies the operation process, improves replacement efficiency, prevents secondary pollution, and enhances air quality and equipment utilization efficiency.
Smart Images

Figure CN223596120U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fresh air technology, specifically to an environmentally friendly fresh air unit that is easy to clean. Background Technology
[0002] A fresh air system is an effective air purification device that circulates indoor air. On the one hand, it expels polluted indoor air to the outside, and on the other hand, it introduces fresh outdoor air into the room after sterilization, disinfection, and filtration, ensuring that the room is always filled with fresh and clean air. Fresh air systems utilize patented fresh air convection technology to achieve indoor air convection through autonomous air supply and exhaust, thereby maximizing indoor air replacement. Fresh air units are also installed in some professional operating rooms to control the air environment. When replacing the filter of a fresh air system, the filter compartment needs to be removed.
[0003] However, existing fresh air systems can only remove one filter compartment at a time when replacing the filter, and cannot remove multiple filter compartments at the same time. Replacing the same type of filter requires multiple steps, which is inconvenient and reduces replacement efficiency. To avoid the above technical problems, it is indeed necessary to provide an environmentally friendly fresh air unit that is easy to clean to overcome the defects in the existing technology. Utility Model Content
[0004] This utility model provides an environmentally friendly fresh air unit that is easy to clean, which can effectively solve the problems mentioned in the background art, such as existing fresh air units that can only remove one filter cartridge at a time when replacing the filter cartridge, and cannot remove multiple filter cartridges at the same time, and require multiple steps when replacing the same type of filter cartridge, which is troublesome and reduces replacement efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly fresh air handling unit that is easy to clean, including a fan housing, wherein a core replacement assembly is installed on one end face of the fan housing;
[0006] The filter replacement assembly includes an air outlet slot, a filter plate, a sliding groove, a stabilizing ring, a sliding rod, a connecting piece, a return spring, a fixing groove, a handle, a limiting cavity, and a magnetic tube.
[0007] The top of the fan housing is provided with an air outlet slot, a filter plate is installed on one side of the fan housing, a sliding groove is provided at the bottom of the inner side of the filter plate, a stabilizing ring is embedded in the bottom of the sliding groove, a sliding rod is slidably installed on the inner side of the stabilizing ring, and a connecting piece is welded to the top of the sliding rod.
[0008] A return spring is sleeved on the outer side of the sliding rod. A fixing groove is opened on the front end face of the filter plate. A handle is slidably connected to the inner side of the fixing groove. A limiting cavity is opened at the top position of the inner side of the filter plate. A magnetic tube is embedded in the inner side of the limiting cavity.
[0009] Preferably, the outer diameter of the connecting piece is equal to the inner diameter of the sliding groove, and the outer diameter of the stabilizing ring is equal to the inner diameter of the sliding groove.
[0010] Preferably, one end of the return spring is spot-welded to the connecting piece, and the outer diameter of the sliding rod is equal to the inner diameter of the stabilizing ring.
[0011] Preferably, the handle is connected to the connecting piece, and the fixing groove is formed on the front of the filter plate at the position corresponding to the sliding rod.
[0012] Preferably, a dustproof component is installed on the front of the fan housing;
[0013] The dustproof assembly includes a magnet frame, an iron sheet, a dustproof film cover, an observation frame, and a transparent observation sheet;
[0014] A magnet frame is welded to one end face of the fan casing. An iron sheet is adsorbed on the outside of the magnet frame. A dustproof film cover is bonded to one end face of the iron sheet. An observation frame is provided on the outside of the dustproof film cover. A transparent observation sheet is embedded in the inside of the observation frame.
[0015] Preferably, an embedding groove is provided on one end face of the fan housing at a position corresponding to the magnet frame, and the magnet frame is installed inside the fan housing through the embedding groove.
[0016] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.
[0017] 1. Equipped with a filter replacement assembly, the upper and lower filter plates are connected by a sliding rod. The operator can then pull any handle connected to the outside of the filter plate to pull out multiple filter plates simultaneously. The operator can then remove all the filter cells at once for replacement. The process is simple and convenient, improving replacement efficiency. When all filter cells need to be removed at once, all filter plates can be connected, allowing all filter cells to be removed for cleaning and maintenance at once, further improving work efficiency.
[0018] 2. Equipped with a dustproof component, the operator can magnetically attach the iron sheet to one side of the magnet frame. Then, the operator can observe the inside of the dustproof film cover through the transparent observation sheet and observation frame. This prevents floating dust or ash from being spread into the air when the operator pulls out the filter element, thus preventing secondary pollution. The operator does not need to clean again, ensuring air quality during the replacement process, reducing the difficulty of use and improving the efficiency of the fresh air unit. Attached Figure Description
[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the installation structure of the filter plate of this utility model;
[0023] Figure 3 This is a schematic diagram of the core replacement assembly of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the dustproof component of this utility model;
[0025] Numbered in the diagram: 1. Fan casing;
[0026] 2. Filter replacement assembly; 201. Air outlet slot; 202. Filter plate; 203. Sliding groove; 204. Stabilizing ring; 205. Sliding rod; 206. Connecting piece; 207. Return spring; 208. Fixing groove; 209. Handle; 210. Limiting cavity; 211. Magnetic tube;
[0027] 3. Dustproof components; 301. Magnet frame; 302. Iron sheet; 303. Dustproof film cover; 304. Observation frame; 305. Transparent observation plate. Detailed Implementation
[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0029] Example: Figure 1-4 As shown, this utility model provides a technical solution, an environmentally friendly fresh air unit that is easy to clean, including a fan housing 1, and a core replacement assembly 2 is installed on one side end face of the fan housing 1.
[0030] The filter element replacement assembly 2 includes an air outlet slot 201, a filter plate 202, a sliding groove 203, a stabilizing ring 204, a sliding rod 205, a connecting piece 206, a reset spring 207, a fixing groove 208, a handle 209, a limiting cavity 210, and a magnetic tube 211.
[0031] The top of the fan housing 1 is provided with an air outlet slot 201. A filter plate 202 is installed on one side end face of the fan housing 1. A sliding groove 203 is provided at the bottom of the inner side of the filter plate 202. A stabilizing ring 204 is embedded in the bottom of the sliding groove 203. A sliding rod 205 is slidably installed on the inner side of the stabilizing ring 204. A connecting piece 206 is welded to the top of the sliding rod 205. The outer diameter of the connecting piece 206 is equal to the inner diameter of the sliding groove 203. The outer diameter of the stabilizing ring 204 is equal to the inner diameter of the sliding groove 203, so as to facilitate the stable sliding of the connecting piece 206.
[0032] A return spring 207 is sleeved on the outer side of the sliding rod 205. One end of the return spring 207 is spot-welded to the connecting piece 206. The outer diameter of the sliding rod 205 is equal to the inner diameter of the stabilizing ring 204, which facilitates the rapid reset of the sliding rod 205. A fixing groove 208 is provided on the front end face of the filter plate 202. A handle 209 is slidably connected to the inner side of the fixing groove 208. A limiting cavity 210 is provided at the top position of the inner side of the filter plate 202. The handle 209 is connected to the connecting piece 206. The limiting cavity 210 is provided at the position corresponding to the sliding rod 205 on the front side of the filter plate 202, which facilitates the pulling of the connecting piece 206. A magnetic tube 211 is embedded in the inner side of the limiting cavity 210.
[0033] A dustproof component 3 is installed on the front of the fan housing 1;
[0034] Dustproof component 3 includes a magnet frame 301, an iron sheet 302, a dustproof film cover 303, an observation frame 304, and a transparent observation sheet 305;
[0035] A magnet frame 301 is welded to one end face of the fan housing 1. An embedding groove is provided at the corresponding position of the magnet frame 301 on one end face of the fan housing 1. The magnet frame 301 is installed inside the fan housing 1 through the embedding groove to facilitate the fixing of the dustproof film cover 303. An iron sheet 302 is adsorbed on the outside of the magnet frame 301. The dustproof film cover 303 is bonded to one end face of the iron sheet 302. An observation frame 304 is provided on the outside of the dustproof film cover 303. A transparent observation sheet 305 is embedded in the inside of the observation frame 304.
[0036] The working principle and usage process of this utility model are as follows: First, when replacing a filter cartridge, if a single filter cartridge needs to be replaced, the operator only needs to pull out the individual filter plate 202. This allows for the replacement of a single filter cartridge. If multiple filter cartridges of the same type need to be replaced, the operator can press down on the handle 209, causing it to pass through the fixing groove 208 and press down on the connecting piece 206. The connecting piece 206 then causes the sliding rod 205 to slide downwards. At this point, the sliding rod 205 slides downwards and moves to the inside of the magnet tube 211, thus being... The magnetic tube 211 is magnetically attracted, and the upper and lower filter plates 202 are connected by the sliding rod 205. Then, the operator can pull any handle 209 that is connected to the outside of the filter plate 202. At this time, multiple filter plates 202 can be pulled out at the same time, and then the operator can pull out all the filter cells and replace them at the same time. The steps are simple and convenient, improving the replacement efficiency. When it is necessary to pull out all the filter cells at once, all the filter plates 202 can be connected, so that all the filter cells can be pulled out for cleaning and maintenance at one time, further improving work efficiency.
[0037] Next, when all the filter plates 202 have been removed, the operator can magnetically attach the iron sheet 302 to one side of the magnet frame 301. Then, the operator can observe the inside of the dustproof film cover 303 through the transparent observation sheet 305 and the observation frame 304. This prevents floating dust or dust from being spread into the air when the filter is removed, thus preventing secondary pollution. The operator does not need to clean again, ensuring air quality during the replacement process, reducing the difficulty of use and improving the efficiency of the fresh air system.
[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. An environmentally friendly fresh air handling unit that is easy to clean, comprising a fan casing (1), characterized in that: A core replacement assembly (2) is installed on one end face of the fan housing (1); The filter element replacement assembly (2) includes an air outlet slot (201), a filter plate (202), a sliding slot (203), a stabilizing ring (204), a sliding rod (205), a connecting piece (206), a return spring (207), a fixing slot (208), a handle (209), a limiting cavity (210), and a magnet tube (211). The top of the fan housing (1) is provided with an air outlet slot (201), and a filter plate (202) is installed on one side end face of the fan housing (1). A sliding groove (203) is provided at the bottom of the inner side of the filter plate (202). A stabilizing ring (204) is embedded at the bottom of the sliding groove (203). A sliding rod (205) is slidably installed on the inner side of the stabilizing ring (204). A connecting piece (206) is welded to the top of the sliding rod (205). A return spring (207) is sleeved on the outer side of the sliding rod (205). A fixing groove (208) is opened on the front end face of the filter plate (202). A handle (209) is slidably connected to the inner side of the fixing groove (208). A limiting cavity (210) is opened at the top position of the inner side of the filter plate (202). A magnet tube (211) is embedded in the inner side of the limiting cavity (210).
2. The environmentally friendly fresh air handling unit that is easy to clean according to claim 1, characterized in that: The outer diameter of the connecting piece (206) is equal to the inner diameter of the sliding groove (203), and the outer diameter of the stabilizing ring (204) is equal to the inner diameter of the sliding groove (203).
3. The environmentally friendly fresh air handling unit that is easy to clean according to claim 1, characterized in that: One end of the return spring (207) is spot-welded to the connecting piece (206), and the outer diameter of the sliding rod (205) is equal to the inner diameter of the stabilizing ring (204).
4. The environmentally friendly fresh air handling unit that is easy to clean according to claim 1, characterized in that: The handle (209) is connected to the connecting piece (206), and the limiting cavity (210) is opened on the front of the filter plate (202) at the position corresponding to the sliding rod (205).
5. The environmentally friendly fresh air handling unit that is easy to clean according to claim 1, characterized in that: The front of the fan housing (1) is equipped with a dustproof component (3); The dustproof component (3) includes a magnet frame (301), an iron sheet (302), a dustproof film cover (303), an observation frame (304), and a transparent observation sheet (305); A magnet frame (301) is welded to one end face of the fan housing (1). An iron sheet (302) is adsorbed on the outside of the magnet frame (301). A dustproof film cover (303) is bonded to one end face of the iron sheet (302). An observation frame (304) is provided on the outside of the dustproof film cover (303). A transparent observation sheet (305) is embedded in the inside of the observation frame (304).
6. The environmentally friendly fresh air handling unit that is easy to clean according to claim 5, characterized in that: An embedding groove is provided on one end face of the fan housing (1) at a position corresponding to the magnet frame (301), and the magnet frame (301) is installed inside the fan housing (1) through the embedding groove.