Air purification device with filter element convenient to replace
By designing a rollable and pull-out filter element and an elastic shaft disc structure, combined with a limiting clamping structure, the problem of cumbersome filter element replacement and the need to stop the machine in existing air purification devices has been solved. The filter element replacement can be done without stopping the machine, improving the ease of operation and equipment stability.
Patent Information
- Application Number
- CN202520538123.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-25
AI Technical Summary
Existing air purification devices are cumbersome to replace filters, and the machine must be stopped before replacement can be performed.
The design incorporates a rollable and pull-out filter element, paired with a flexible winch-type shaft structure and multiple sets of limiting clamping structures, enabling filter element replacement without shutting down the machine.
It enables easy and simple replacement of filter elements, which can be performed without stopping the equipment. The replacement operation is simplified and the filter element installation is more secure.
Smart Images
Figure CN223914993U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification, and in particular to an air purification device that facilitates filter replacement. Background Technology
[0002] Air purification devices, also known as air purifiers, air cleaners, or air fresheners, are products that can adsorb, decompose, or transform various air pollutants (generally including PM2.5, dust, pollen, odors, formaldehyde and other decoration pollution, bacteria, allergens, etc.) to effectively improve air cleanliness. They are mainly divided into household, commercial, industrial, and building types.
[0003] The filter element is one of the core components of an air purifier. When polluted air from the outside passes through the filter element, the pollutants are trapped on it, while clean air is pumped into the clean space. Air purifiers usually require filter replacement after prolonged use, but replacing the filter element in existing air purifiers is not only cumbersome, but also requires the equipment to be turned off before the replacement can be performed. Utility Model Content
[0004] Therefore, it is necessary to provide an air purification device that facilitates filter replacement, addressing the shortcomings of existing technologies.
[0005] An air purification device for easy filter replacement includes a housing, a supply box, a supply shaft, a winding disc, a replacement box, and a filter element. The housing contains a filter chamber with an air inlet and an air outlet at its left and right ends, respectively. Vertical through-holes are also provided on the front and rear sides of the housing, both communicating with the filter chamber and corresponding to each other. The supply box is mounted on the rear side of the housing and communicates with the through-hole on the rear side. The supply shaft is mounted inside the supply box and is rotatable. The winding disc is inserted onto the supply shaft. The replacement box is mounted on the front side of the housing and communicates with the through-hole on the front side. The filter element is wound on the winding disc, with one end passing through the filter chamber and the through-hole on the front side of the housing via the through-hole on the rear side and extending and fixed inside the replacement box.
[0006] Furthermore, the filter element has a multi-segment structure design, comprising multiple sets of filter sheets connected in sequence. Each filter sheet includes a filter sheet body and male and female clamping strips clamped at both ends of the filter sheet body, with adjacent male and female clamping strips capable of engaging with each other.
[0007] Furthermore, the supply box includes a first box body and a first box cover. The first box body has a supply cavity with an opening at the top and one side. The first box body is installed on the rear side of the housing, and the one side opening of the supply cavity communicates with a through hole on the rear side of the housing. The first box cover is closed on the upper opening of the supply cavity.
[0008] Furthermore, the replacement box includes a second box body and a second box cover. The second box body has a replacement cavity with openings at the top and on both sides. The second box body is installed on the front side of the housing, and one opening of the replacement cavity communicates with a through hole on the front side of the housing. The second box cover is placed over the top and the other opening of the replacement cavity.
[0009] Furthermore, the air purification device that facilitates filter replacement also includes two sets of first limiting clamps, which are located in the supply box and the replacement box, respectively, and clamp and limit the filter located outside the two through holes.
[0010] Furthermore, the first limiting clamp includes a first clamping body, a sliding rod, a second clamping body, and a first telescopic spring. The sliding rod is fixedly mounted on one side of the first clamping body, the second clamping body passes through the sliding rod and is correspondingly arranged with the first clamping body, and the first telescopic spring passes through the sliding rod and can drive the second clamping body to slide elastically along the sliding rod.
[0011] Furthermore, the air purification device that facilitates filter replacement also includes two sets of second limiting clamps. The two sets of second limiting clamps are respectively installed at the top and bottom of the filter cavity and are located on the left and right sides of the two sets of through holes. The two sets of second limiting clamps clamp and limit the filter element located in the filter cavity on the upper and lower sides respectively.
[0012] Furthermore, the second limiting clamp includes a third clamp body, a fourth clamp body, and a second telescopic spring, and a slide rail is provided on the inner wall of the filter cavity. The third clamp body is fixedly installed on the inner wall of the filter cavity, the fourth clamp body is engaged with the slide rail, and the second telescopic spring is engaged with the slide rail and can drive the fourth clamp body to slide elastically along the slide rail.
[0013] Furthermore, the second limiting clamp also includes a toggle rod, which passes through the filter cavity from the upper end of the housing and sequentially through the two fourth clamps. The toggle rod can drive the two fourth clamps to slide elastically along the slide rail.
[0014] Furthermore, the housing also includes several air guide plates, which are sequentially axially connected to the air outlet of the housing and are adjustable and rotatable.
[0015] In summary, the beneficial effects of this utility model's air purification device with an easy-to-replace filter element are as follows: by designing a rollable and pull-out filter element, combined with a flexible winch structure, the air purification device not only allows for easier and simpler filter element replacement, but also enables filter element replacement without shutting down the device; the filter element design, consisting of multiple sets of filter discs connected and combined, further simplifies the filter element replacement operation; the air purification device incorporates multiple sets of clamping and limiting structures to hold and limit the filter element, improving the installation stability of the filter element within the device; this utility model is highly practical and has significant potential for widespread application. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an air purification device that facilitates filter replacement according to the present invention.
[0017] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0018] Figure 3 for Figure 2 Schematic diagram of the middle shell structure;
[0019] Figure 4 for Figure 2 An exploded view of the supply box, supply shaft, winding disc, replacement box, filter element and first limiting clamp.
[0020] Figure 5 for Figure 4 A schematic diagram of the exploded structure of the middle filter element;
[0021] Figure 6 for Figure 4 A schematic diagram of the exploded structure of the first limiting clamp;
[0022] Figure 7 for Figure 4 A schematic diagram of the exploded structure of the second limiting clamp. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the utility model.
[0024] In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0025] like Figures 1 to 7As shown, this utility model provides an air purification device 100 with an easy-to-replace filter element, which includes a housing 10, a supply box 20, a supply shaft 30, a winding disc 40, a replacement box 50, and a filter element 60. It is understood that this utility model also includes several exhaust components, sterilization components, humidification components, etc., which are all conventional technologies in the field and will not be described in detail here.
[0026] The housing 10 contains a filter chamber 11, with an air inlet 12 and an air outlet 13 at its left and right ends, respectively. Vertical through holes 14 are also provided on the front and rear sides of the housing 10, both of which communicate with the filter chamber 11 and are arranged correspondingly. A supply box 20 is installed on the rear side of the housing 10 and communicates with the through holes 14 on the rear side of the housing 10. A supply shaft 30 is installed inside the supply box 20 and can rotate elastically. A winding disc 40 is inserted onto the supply shaft 30. A replacement box 50 is installed on the front side of the housing 10 and communicates with the through holes 14 on the front side of the housing 10. The filter element 60 is wound on the winding disc 40, with one end passing through the filter chamber 11 and the through holes 14 on the front side of the housing 10 along the through holes 14 on the rear side of the housing 10 and extending and fixed inside the replacement box 50.
[0027] When the air purifier needs to replace the filter element 60, simply open the replacement box 50 and pull the end of the filter element 60, which extends through the elongated hole 14 into the replacement box 50, outwards. The filter element 60 wound in the supply box 20 will then rotate and be released. At this time, the new filter element 60 is pulled into the filter chamber 11, while the old filter element 60, which was originally in the filter chamber 11, is pulled out from the replacement box 50. When the old filter element 60 is completely pulled out, it can be cut off from the entire filter element 60 section to complete the filter element 60 replacement operation. Compared with the conventional method of disassembling and replacing the filter element 60, the pull-out replacement method is not only easier and simpler, but also allows for seamless replacement of the filter element 60 without stopping the equipment and without affecting the normal operation of the equipment.
[0028] The supply box 20 includes a first box body 21 and a first box cover 22. The first box body 21 has a supply cavity 211 with an opening at the top and on one side. The first box body 21 is installed on the rear side of the housing 10, and the opening on one side of the supply cavity 211 communicates with a through-hole 14 on the rear side of the housing 10. The first box cover 22 closes onto the upper opening of the supply cavity 211. The supply box 20 with the box cover structure is easier to open, thus facilitating the replacement of the entire roll of filter element 60 by the operator.
[0029] The replacement box 50 includes a second box body 51 and a second box cover 52. The second box body 51 has a replacement cavity 511 with openings at the top and on both sides. The second box body 51 is installed on the front side of the housing 10, and one opening of the replacement cavity 511 communicates with a through hole 14 on the front side of the housing 10. The second box cover 52 covers the top of the replacement cavity 511 and the other opening. The replacement box 50 with the box cover structure is easier to open, thus facilitating the operation of pulling out and replacing the filter element 60 by the operator.
[0030] The filter element 60 has a multi-segment structure, comprising multiple sets of filter sheets 61 connected in sequence. Each filter sheet 61 includes a filter sheet body 611 and male clamping strips 612 and female clamping strips 613 clamped at both ends of the filter sheet body 611. Adjacent male clamping strips 612 and female clamping strips 613 can be interlocked. The filter element 60, composed of multiple filter sheet segments 61, not only facilitates the removal and disposal of old filter sheets 61 from the roll of filter elements 60, but also facilitates seamless splicing between new and old rolls of filter elements 60 within the supply box 20.
[0031] The air purification device 100, which facilitates filter replacement, further includes two sets of first limiting clamps 70. These clamps are located within the supply box 20 and the replacement box 50, respectively, and clamp and limit the filter element 60 located outside the two through-holes 14. Each first limiting clamp 70 includes a first clamping body 71, a sliding rod 72, a second clamping body 73, and a first telescopic spring 74. The sliding rod 72 is fixedly mounted on one side of the first clamping body 71. The second clamping body 73 passes through the sliding rod 72 and corresponds to the first clamping body 71. The first telescopic spring 74 passes through the sliding rod and can drive the second clamping body 73 to slide elastically along the sliding rod 72. The two sets of first limiting clamps 70 clamp the two ends of the filter element 60, tightening it so that the portion of the filter element 60 located within the filter chamber 11 can more reliably filter and purify the air. Furthermore, the first limiting bracket with the through hole 14 can also act as a shield and seal, effectively preventing unfiltered and purified air from leaking into the supply box 20 or the replacement box 50.
[0032] The air purification device 100, which facilitates filter replacement, also includes two sets of second limiting clamps 80. These two sets of second limiting clamps 80 are respectively installed at the top and bottom of the filter chamber 11 and are located on the left and right sides of the two sets of through holes 14. These two sets of second limiting clamps 80 respectively clamp and limit the filter element 60 located inside the filter chamber 11 on its upper and lower sides. Each second limiting clamp 80 includes a third clamping body 81, a fourth clamping body 82, and a second telescopic spring 83. A slide rail 15 is provided on the inner wall of the filter chamber 11. The third clamping body 81 is fixedly installed on the inner wall of the filter chamber 11, the fourth clamping body 82 is engaged with the slide rail 15, and the second telescopic spring 83 is engaged within the slide rail 15 and can drive the fourth clamping body 82 to slide elastically along the slide rail 15. The second limiting clamp 80 also includes a toggle lever 84, which passes through the upper end of the housing 10 into the filter chamber 11 and sequentially through the two fourth clamping bodies 82. The toggle lever 84 can drive the two fourth clamping bodies 82 to slide elastically along the slide rail 15. The second limiting clamp 80 can clamp and fix the filter element 60 located in the filter chamber 11, further tightening it to reliably filter and purify the air.
[0033] The housing 10 also includes several levers 16, which are sequentially axially connected to the air outlet 13 of the housing 10 and are adjustable. The adjustable levers 16 allow the air purification device to flexibly change the air outlet angle to adapt to different purified air supply needs.
[0034] In summary, the beneficial effects of this utility model's air purification device 100, which facilitates filter replacement, are as follows: By designing a rollable and pull-out filter element 60, coupled with a flexible winch structure, the air purification device not only allows for easier and simpler filter element replacement, but also enables filter element replacement without shutting down the device; the filter element 60 is designed to be formed by connecting and assembling multiple filter sheets 61, further simplifying the filter element 60 replacement operation; the air purification device adds multiple sets of clamping and limiting structures to clamp and limit the filter element 60, which can improve the installation firmness of the filter element 60 inside the device; this utility model is highly practical and has strong promotional significance.
[0035] The embodiments described above illustrate only one implementation of the utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be determined by the appended claims.
Claims
1. An air purification device with an easy-to-replace filter element, characterized in that: The device includes a housing, a supply box, a supply shaft, a winding disc, a replacement box, and a filter element. The housing contains a filter chamber with an air inlet and an air outlet at its left and right ends, respectively. Vertical through-holes are also provided on the front and rear sides of the housing, both of which communicate with the filter chamber and are arranged correspondingly. The supply box is installed on the rear side of the housing and communicates with the through-hole on the rear side. The supply shaft is installed inside the supply box and can rotate elastically. The winding disc is inserted onto the supply shaft. The replacement box is installed on the front side of the housing and communicates with the through-hole on the front side. The filter element is wound on the winding disc, with one end passing through the filter chamber and the through-hole on the front side of the housing via the through-hole on the rear side and extending and fixed inside the replacement box.
2. The air purification device with easy filter replacement as described in claim 1, characterized in that: The filter element has a multi-segment structure design, which includes multiple sets of filter sheets connected in sequence; the filter sheet includes a filter sheet body and male and female clamping strips clamped at both ends of the filter sheet body, and adjacent male and female clamping strips can be interlocked and connected.
3. The air purification device with easy filter replacement as described in claim 1, characterized in that: The supply box includes a first box body and a first box cover; the first box body is provided with a supply cavity with an upper opening and a side opening, the first box body is installed on the rear side of the housing, and the side opening of the supply cavity communicates with a through hole on the rear side of the housing, and the first box cover is closed on the upper opening of the supply cavity.
4. The air purification device with easy filter replacement as described in claim 1, characterized in that: The replacement box includes a second box body and a second box cover; the second box body has a replacement cavity with openings at the top and on both sides, the second box body is installed on the front side of the housing, and one side opening of the replacement cavity communicates with a through hole on the front side of the housing, and the second box cover is closed on the top and other side opening of the replacement cavity.
5. The air purification device with easy filter replacement as described in claim 1, characterized in that: It also includes two sets of first limiting clamps, which are located in the supply box and the replacement box respectively, and respectively clamp and limit the filter element located outside the two through holes.
6. The air purification device with easy filter replacement as described in claim 5, characterized in that: The first limiting clamp includes a first clamping body, a sliding rod, a second clamping body, and a first telescopic spring; the sliding rod is fixedly installed on one side of the first clamping body, the second clamping body passes through the sliding rod and is correspondingly arranged with the first clamping body, and the first telescopic spring passes through the sliding rod and can drive the second clamping body to slide elastically along the sliding rod.
7. The air purification device with easy filter replacement as described in claim 1, characterized in that: It also includes two sets of second limiting clamps, which are respectively installed at the top and bottom of the filter cavity and located on the left and right sides of the two sets of through holes. The two sets of second limiting clamps clamp and limit the filter element located in the filter cavity on the upper and lower sides respectively.
8. The air purification device with easy filter replacement as described in claim 7, characterized in that: The second limiting clamp includes a third clamp body, a fourth clamp body, and a second telescopic spring. A slide rail is provided on the inner wall of the filter cavity. The third clamp body is fixedly installed on the inner wall of the filter cavity. The fourth clamp body is engaged with the slide rail. The second telescopic spring is engaged with the slide rail and can drive the fourth clamp body to slide elastically along the slide rail.
9. The air purification device with easy filter replacement as described in claim 8, characterized in that: The second limiting clamp also includes a toggle rod, which passes through the filter cavity from the upper end of the housing and sequentially through the two fourth clamps. The toggle rod can drive the two fourth clamps to slide elastically along the slide rail.
10. The air purification device with easy filter replacement as described in claim 1, characterized in that: The housing also includes several air guide plates, which are sequentially axially connected to the air outlet of the housing and can be adjusted and rotated.