Air purification equipment easy to maintain
By designing a detachable filter element and a fixing strip and pressure strip structure connected by torsion springs in the air purification equipment, the problem of inconvenient filter paper replacement is solved, the operation is simplified and filter paper damage is reduced, and the maintenance efficiency of the equipment and the service life of the filter element are improved.
Patent Information
- Application Number
- CN202423086597.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing air purification equipment is cumbersome to operate when replacing filter paper and is prone to damaging the filter paper, resulting in inconvenient maintenance.
An easy-to-maintain air purification device was designed, which uses a detachable filter element. The filter element has a fixing strip and a pressure strip on the outside, which are connected by a torsion spring. The pressure strip can switch between two states by the action of the torsion spring, simplifying the process of wrapping and pressing the filter paper.
This makes filter paper replacement simple, reduces filter paper damage, and improves maintenance efficiency and filter cartridge lifespan.
Smart Images

Figure CN223499728U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification equipment technology, and specifically to an air purification device that is easy to maintain. Background Technology
[0002] An air purifier is a device that can remove harmful pollutants from the air, clean indoor air, and make the indoor air fresher and healthier.
[0003] Many air purifiers use cylindrical filters to remove particulate pollutants such as dust, pollen, bacteria, and viruses. In recent years, a significant number of users have wrapped the filter cartridge with antistatic and antibacterial filter paper, stapled it in place around the outside of the cartridge, and then installed it into the air purifier. Adding filter paper is believed to extend the filter's lifespan. However, stapled filter paper is cumbersome, easily damages the paper, and makes replacement difficult during maintenance. Utility Model Content
[0004] This application provides an easy-to-maintain air purification device that solves the problem of replacing filter paper in existing air purification devices when maintenance is inconvenient.
[0005] This application provides an easy-to-maintain air purification device, including an air purifier body. The air purifier body includes a removable filter element. A fixing strip is vertically arranged on the outer side of the filter element. A pressure strip is hinged to the upper or lower end of the fixing strip. The rotation axis of the pressure strip is horizontal. A torsion spring is provided at the hinge point between the fixing strip and the pressure strip. The central axis of the torsion spring coincides with the rotation axis of the pressure strip. One end of the torsion spring is connected to the fixing strip, and the other end is connected to the pressure strip. Under the action of the torsion spring, the pressure strip can be in one of two states: State 1: the side of the pressure strip near the fixing strip is attached to the fixing strip; State 2: the side of the pressure strip near the fixing strip is detached from the fixing strip under human force.
[0006] In one embodiment, the fixing strip extends upward or downward beyond the filter element, and a corresponding recessed groove is provided on the air purifier body for the portion of the fixing strip extending beyond the filter element to slide. One side of the groove leads to the outside of the air purifier body, and the other side is located inside the air purifier body. When the fixing strip slides to the side where the groove is located inside the air purifier body, the filter element is located in the middle position of the air purifier body.
[0007] In one embodiment, the fixing strip extends downward beyond the filter element, and the groove is located at the lower end of the filter element.
[0008] In one embodiment, the length of the pressure strip is equal to that of the fixing strip.
[0009] In one embodiment, the width of the pressure strip and the fixing strip is 1-3 cm.
[0010] In summary, the air purification device provided in this application, which is easy to maintain, has the following advantages compared to the prior art: when replacing the filter paper, the pressure strip can be lifted, and the filter paper can be wrapped around the fixing strip. Then, the pressure strip presses the beginning and end of the filter paper onto the fixing strip under the action of the torsion spring. The operation is simple, the effect is stable, and the filter paper is not easily damaged. Attached Figure Description
[0011] To better illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.
[0012] Figure 1 An overall structural view of an easy-to-maintain air purification device;
[0013] Figure 2 for Figure 1 A magnified view of area A in the middle.
[0014] In the diagram, 1 is the housing; 2 is the cavity; 3 is the door; 4 is the slide; 5 is the filter element; 6 is the fixing strip; 7 is the pressure strip; and 8 is the torsion spring. Detailed Implementation
[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These embodiments are used to illustrate this utility model but are not intended to limit its scope. Furthermore, the described embodiments are only a part of the embodiments of this disclosure, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.
[0016] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by those skilled in the art. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0017] Please see Figure 1 An easy-to-maintain air purification device includes an air purifier body, which includes a housing 1 and a removable filter element 5. The housing 1 has a cavity 2 for inserting the filter element 5. The cavity 2 is also provided with an openable door 3. Generally, the filter element 5 is installed by the user manually pushing it to the middle position of the cavity 2. The specific structure of the air purifier body is existing technology and will not be described in detail here.
[0018] Please see Figure 1 , Figure 2 A fixing strip 6 is vertically fixed on the outer surface of the filter element 5. A pressure strip 7 is hinged to the upper end of the fixing strip 6, and the axis of rotation of the pressure strip 7 is horizontal. A torsion spring 8 is provided at the hinge point between the fixing strip 6 and the pressure strip 7. The central axis of the torsion spring 8 coincides with the axis of rotation of the pressure strip 7. One end of the torsion spring 8 is fixedly connected to the fixing strip 6 by welding, and the other end is connected to the pressure strip 7 by welding. Under the action of the torsion spring 8, the pressure strip 7 can switch between one of the following two states: State 1: The side of the pressure strip 7 near the fixing strip 6 is in contact with the fixing strip 6 (when the pressure strip 7 is also rotated to a vertical state); State 2: The side of the pressure strip 7 near the fixing strip 6 rotates and detaches from the fixing strip 6 under the action of human force (the user can lift the pressure strip 7 by pinching it to overcome the action of the torsion spring 8).
[0019] Please see Figure 1In one embodiment, the fixing strip 6 extends upwards or downwards beyond the filter element 5, and a corresponding recessed groove 4 is provided on the air purifier body for the portion of the fixing strip 6 extending beyond the filter element 5 to slide. The groove 4 is linearly arranged, with one side opening to the outside of the air purifier body and the other side located inside the air purifier body, allowing the filter element 5 to slide into the cavity 2 from the outside via the portion of the fixing strip 6 extending beyond the filter element 5 along the groove 4. By setting the length of the groove 4, when the fixing strip 6 slides to the side where the groove 4 is located inside the air purifier body, the filter element 5 is located in the middle position of the air purifier body. This design allows the user to simply push the filter element 5 forward along the groove 4 to reach the middle position when installing it, preventing the user from pushing the filter element 5 out of place and affecting its working effect.
[0020] Please see Figure 1 In one embodiment, the fixing strip 6 extends downward beyond the filter element 5, and the sliding groove 4 is located at the lower end of the filter element 5. With this arrangement, other important structures are usually set above the inner cavity, while the lower part of the inner cavity generally serves as the base. Therefore, setting the sliding groove 4 at the lower end of the filter element 5 will not affect the structure above the inner cavity, which is more reasonable.
[0021] Please see Figure 1 In one embodiment, the length of the pressure strip 7 is equal to that of the fixing strip 6. This arrangement provides better compression of the filter paper by the pressure strip 7. Preferably, the width of both the pressure strip 7 and the fixing strip 6 is 2cm. This arrangement provides a stable compression effect on the filter paper without affecting the purification effect of the filter element 5 due to excessive width.
[0022] Working principle: When replacing the filter paper, the pressure strip 7 can be lifted, and the filter paper can be wrapped around the fixing strip 6. Under the action of the torsion spring 8, the pressure strip 7 presses the beginning and end of the filter paper onto the fixing strip 6. The operation is simple, the effect is stable, and it is not easy to damage the filter paper.
Claims
1. An easy-to-maintain air purification device, comprising an air purifier body, said air purifier body including a removable filter element (5), characterized in that, A fixing strip (6) is vertically arranged on the outer side of the filter element (5). A pressure strip (7) is hinged to the upper or lower end of the fixing strip (6). The rotation axis of the pressure strip (7) is horizontal. A torsion spring (8) is provided at the hinge of the fixing strip (6) and the pressure strip (7). The central axis of the torsion spring (8) coincides with the rotation axis of the pressure strip (7). One end of the torsion spring (8) is connected to the fixing strip (6), and the other end is connected to the pressure strip (7). Under the action of the torsion spring (8), the pressure strip (7) can be in one of two states: State 1: The side of the pressure strip (7) close to the fixing strip (6) is attached to the fixing strip (6); State 2: The side of the pressure strip (7) close to the fixing strip (6) is detached from the fixing strip (6) under the action of human force.
2. The easy-to-maintain air purification device according to claim 1, characterized in that, The fixing strip (6) extends upward or downward beyond the filter element (5), and a corresponding recessed groove (4) is provided on the air purifier body for the part of the fixing strip (6) extending beyond the filter element (5) to slide. One side of the groove (4) leads to the outside of the air purifier body, and the other side is located inside the air purifier body. When the fixing strip (6) slides to the side where the groove (4) is located inside the air purifier body, the filter element (5) is located in the middle position of the air purifier body.
3. The easy-to-maintain air purification device according to claim 2, characterized in that, The fixing strip (6) extends downward beyond the filter element (5), and the groove (4) is located at the lower end of the filter element (5).
4. The easy-to-maintain air purification device according to claim 1, characterized in that, The length of the pressure strip (7) is equal to that of the fixing strip (6).
5. The easy-to-maintain air purification device according to claim 1, characterized in that, The width of the pressure strip (7) and the fixing strip (6) is 1-3cm.