Composite multi-filter and washing and drying all-in-one machine
By employing a multi-layer filter design and a brush cleaning structure, the problems of poor filtration and difficult cleaning associated with dual-layer filters are solved, resulting in a filter design that offers high-efficiency filtration and a long lifespan.
Patent Information
- Application Number
- CN202422903626.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing dual-layer filter structures have poor filtration performance, are difficult to clean, and have a short service life. They are particularly ineffective when dealing with fine particles and sticky substances, and have high cleaning and maintenance costs.
It adopts a composite multi-stage filter, including a first filtration mechanism, a second filtration mechanism, and a cleaning mechanism. Through a detachable multi-layer filter design and a brush cleaning structure, it achieves multiple filtration and efficient cleaning.
It improves filtration efficiency, simplifies the cleaning process, extends service life, reduces maintenance costs, and has the advantages of easy operation, thorough cleaning, flexible use, and high filtration quality.
Smart Images

Figure CN223490641U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filtration equipment, specifically to a composite multi-stage filter and a washer-dryer combo machine. Background Technology
[0002] In the context of today's industrialization and environmental governance, the application of filtration structures such as filters is expanding, playing a crucial role in air purification, cleaning appliances, and many other fields. However, existing filtration technologies generally suffer from a problem: traditional single-layer filter structures are ineffective at filtering particulate matter and impurities, failing to meet increasingly stringent environmental and production standards. To overcome this deficiency, dual-layer filter structures have been proposed, aiming to improve filtration efficiency by adding filtration layers. However, practice has shown that while dual-layer filters improve filtration efficiency to some extent, they still have many shortcomings.
[0003] First, the filtration effect of the dual-layer filter still falls short of the expected high standard, especially when handling fine particles and sticky substances, where its filtration capacity is particularly insufficient. Second, cleaning the dual-layer filter is a significant problem, especially on the windward side, which directly faces pollutants, leading to severe accumulation of dust and impurities. This not only increases the difficulty of cleaning but also significantly shortens the filter's lifespan due to frequent cleaning. Furthermore, the accumulation of pollutants on the windward side reduces the filter's air permeability, resulting in increased filtration resistance, which in turn increases energy consumption and maintenance costs.
[0004] In this context, existing dual-layer filter structures face problems such as poor filtration performance, difficulty in cleaning and maintenance, and short service life in practical applications. Summary of the Invention
[0005] Therefore, the technical problem to be solved by this utility model is to overcome the problems of poor filtration effect and difficulty in cleaning the air-facing surface in the prior art, and to provide a composite multi-layer filter and a washer-dryer combo machine.
[0006] To solve the above-mentioned technical problems, this utility model provides a composite multi-stage filter, comprising: a first filtering mechanism, the first filtering mechanism including a housing and a first filter screen, the housing having a filter screen mounting space communicating with the outside, the first filter screen being disposed in the filter screen mounting space; a second filtering mechanism, the second filtering mechanism being pluggably connected to the housing, the second filtering mechanism including a second filter screen and at least one third filter screen, the third filter screen being rotatable relative to the second filter screen, and in the filtering state, the first filter screen, the second filter screen, and the third filter screen being arranged in parallel and spaced apart in the filter screen mounting space; and a cleaning mechanism, the cleaning mechanism being connected to the housing, the cleaning mechanism including at least two brushes, the at least two brushes being spaced apart along the thickness direction of the housing, and in the filtering state, the at least two brushes respectively contacting the windward surfaces of the second filter screen and at least one of the third filter screens.
[0007] In one embodiment of the present invention, the housing is provided with at least two sliding tracks, the sliding tracks are disposed at the edge of the filter installation space, and at least two of the sliding tracks extend along the length direction of the housing. The second filter and the third filter are each provided with a slider, and the slider is slidably connected to the sliding track.
[0008] In one embodiment of the present invention, the second filtering mechanism further includes a first assembly, the second filter screen is fixedly connected to the first assembly, and at least one of the third filter screens is rotatably connected to the first assembly.
[0009] In one embodiment of the present invention, the first assembly is provided with a rotating shaft, and the third filter screen is provided with at least one rotating block. The rotating shaft is connected to the rotating block so that the third filter screen rotates around the rotating shaft.
[0010] In one embodiment of the present invention, the cleaning mechanism is disposed at one end of the housing, and the second filtering mechanism passes through the cleaning mechanism into the filter installation space.
[0011] In one embodiment of the present invention, the cleaning mechanism further includes a second assembly, the brush is connected to the second assembly, the second assembly is provided with a plug and a pressing part, the housing is provided with a plug groove, one end of the plug is connected to the pressing part, and the other end passes through the plug groove to detachably connect the second assembly and the housing.
[0012] In one embodiment of the present invention, the second assembly is provided with at least two mounting beams, and at least two of the brushes are respectively connected to at least two of the mounting beams.
[0013] In one embodiment of the present invention, the first filtering mechanism further includes a handle, a connecting component, and a sealing element. The handle is connected to the housing via the connecting component, and the sealing element is disposed between the housing and the handle.
[0014] In one embodiment of this utility model, in the disassembled state, the second filter mechanism is pulled out from the housing, and impurities are received by the filter installation space.
[0015] This utility model also provides a washer-dryer combo machine, which includes the above-mentioned composite multi-filter, drying equipment and cleaning equipment, wherein the drying equipment and the cleaning equipment are interconnected, and the composite multi-filter is disposed in the drying equipment.
[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:
[0017] The composite multi-layer filter and washer-dryer of this invention achieve a multi-layer filtration process through detachable first and second filter mechanisms, thereby improving the filtration effect. Simultaneously, this application uses a cleaning mechanism to directly clean the air-facing surfaces of the multi-layer filter screens, achieving not only simultaneous and efficient cleaning of the multiple filter screens but also significantly improving the cleaning effect. Furthermore, this application can also target and clean the relatively rotatable second filter screen and at least one third filter screen, enabling thorough cleaning of the filter during long-term use, thus improving filtration efficiency and extending its service life. Compared to conventional filtration technologies, this application offers significant advantages such as ease of operation, thorough cleaning, flexible use, high filtration quality, and long service life, providing a new approach to high-quality filtration technology. Attached Figure Description
[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0019] Figure 1 This is a three-dimensional structural diagram of the composite multi-layer filter in a practical state according to a preferred embodiment of this utility model;
[0020] Figure 2 yes Figure 1 The diagram shows a three-dimensional structure of the composite multi-layer filter during the insertion process.
[0021] Figure 3 yes Figure 1 Explosion-proof structural diagram of the composite multi-layer filter;
[0022] Figure 4 yes Figure 1A three-dimensional structural diagram of the first connector in the composite multi-stage filter;
[0023] Figure 5 yes Figure 1 A three-dimensional structural diagram of the second connector in the composite multi-stage filter;
[0024] Figure 6 yes Figure 1 A three-dimensional structural diagram of the connecting components in the composite multi-stage filter;
[0025] Figure 7 yes Figure 1 The diagram shows the structure of the first filtration mechanism in the composite multi-stage filter under the condition of carrying impurities.
[0026] Figure 8 yes Figure 2 Enlarged structural diagram at point A in the middle;
[0027] Figure 9 yes Figure 2 Enlarged structural diagram at point B;
[0028] Figure 10 yes Figure 1 A three-dimensional structural diagram of the second filtration mechanism in the composite multi-stage filter shown.
[0029] Figure 11 This is a schematic diagram of the disassembly and cleaning process of this composite multi-stage filter.
[0030] Explanation of reference numerals in the accompanying drawings: 100, First filter mechanism; 110, Housing; 111, Filter installation space; 112, Sliding rail; 120, First filter screen; 130, Handle; 140, Seal; 150, Connecting assembly; 151, First connector; 152, Second connector; 200, Second filter mechanism; 210, First assembly; 211, Rotating shaft; 220, Second filter screen; 230, Third filter screen; 231, Rotating block; 240, Sliding block; 300, Cleaning mechanism; 310, Second assembly; 311, Pressing part; 312, Insertion block; 313, Mounting beam; 320, Brush; 400, Impurities. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention. Example 1
[0032] This embodiment provides a composite multi-stage filter, comprising: a first filter mechanism 100, the first filter mechanism 100 including a housing 110 and a first filter screen 120, the housing 110 having a filter screen mounting space 111 communicating with the outside, the first filter screen 120 being disposed in the filter screen mounting space 111; and a second filter mechanism 200, the second filter mechanism 200 being pluggably connected to the housing 110, the second filter mechanism 200 including a second filter screen 220 and at least one third filter screen 230, the third filter screen 230 being detachable relative to the second filter screen 220. The filter screen 220 rotates. In the filtering state, the first filter screen 120, the second filter screen 220, and the third filter screen 230 are arranged in parallel and spaced apart in the filter screen installation space 111. The cleaning mechanism 300 is connected to the housing 110 and includes at least two brushes 320. The at least two brushes 320 are arranged at intervals along the thickness direction of the housing 110. In the filtering state, the at least two brushes 320 respectively contact the windward side of the second filter screen 220 and at least one of the third filter screens 230.
[0033] The composite multi-layer filter described in this embodiment achieves a multi-stage filtration process through a detachable first filter mechanism 100 and a second filter mechanism 200, thereby improving the filtration effect. Simultaneously, the cleaning mechanism 300 directly cleans the air-facing surfaces of the multi-layer filter screens, enabling simultaneous and efficient cleaning of the multiple filter screens and significantly improving the cleaning effect. Furthermore, this application can also selectively clean the relatively flip-up second filter screen 220 and at least one third filter screen 230, thereby achieving thorough cleaning of the filter during long-term use, thus improving the filtration effect and extending its service life. Compared to conventional filtration technologies, this application offers significant advantages such as ease of operation, thorough cleaning, flexible use, high filtration quality, and long service life, providing a new approach to high-quality filtration technology.
[0034] The composite multi-stage filter described in this application has a filtering state and a disassembly state. During normal use, it is in the filtering state, in which the first filter mechanism 100, the second filter mechanism 200, and the cleaning mechanism 300 are interconnected. For details of this process, please refer to [link to relevant documentation]. Figure 1 As shown; when disassembly and cleaning are required, the second filter mechanism 200 can be pulled out from inside the first filter mechanism 100. Thus, in the disassembled state, the process of pulling the second filter mechanism 200 out of the housing allows impurities to be collected by the filter screen mounting space, enabling separate cleaning of the second filter mechanism 200. See [link to documentation] for details. Figure 2 As shown.
[0035] See Figures 1 to 3As shown, the housing 110 in this embodiment is preferably a rectangular frame, which serves as an installation platform for the first filter screen 120, the second filter mechanism 200, and the cleaning mechanism 300. In actual use, the housing 110 is also used to fix it to the external assembly structure. The first filter screen 120 is connected to the housing 110, which serves to form a first-level filtration effect during operation. On the other hand, when the second filter mechanism 200 is pulled out, the impurities 400 brushed off by the cleaning mechanism 300 can also be stopped and received by the first filter screen 120. This can replace similar structures such as waste recycling boxes in traditional technology, thereby further simplifying the structural setup and reducing the structural volume.
[0036] See Figures 3 to 6 As shown, in this embodiment, the installation space extends through the housing 110 along its thickness direction. Simultaneously, both ends of the housing 110 along its length are configured to communicate with the outside world, facilitating the insertion and connection of the second filter mechanism 200 and the assembly of other related structures. Specifically, in this embodiment, one end of the housing 110 along its length is used to connect the second filter mechanism 200, and the other end is provided with a handle 130, a connecting component 150, and a sealing element 140. The handle 130 is connected to the housing 110 via the connecting component 150, and the sealing element 140 is disposed between the housing 110 and the handle 130. In practical use, the operator can transfer the entire composite multilayer filter using the handle 130. The connecting component 150 is used to detachably connect the handle 130 to the housing 110 via a snap-fit structure. The sealing member 140 is used to seal and fill the connection gaps between the housing 110 and the various filter mechanisms inside it. Specifically, in this embodiment, the connecting component 150 includes a first connecting member 151 and a second connecting member 152 that can be inserted and fastened to each other. The first connecting member 151 is connected to the second connecting member 152 and has a locking block. The second connecting member 152 is connected to the handle 130, and the handle 130 has a locking groove. When the handle 130 is connected to the housing 110, the locking block is correspondingly fastened into the locking groove. In other embodiments, the handle 130 and the housing 110 can also be detachably connected through other connecting structures. This utility model does not impose specific limitations on this.
[0037] See Figure 7 As shown, in this embodiment, the housing 110 is provided with at least two sliding tracks 112. The sliding tracks 112 are located at the edge of the filter installation space 111. Both of the sliding tracks 112 extend along the length of the housing 110. The second filter 220 and the third filter 230 are provided with sliders 240. The sliders 240 are slidably connected to the sliding tracks 112, thereby facilitating the guiding and disassembly of the first filter mechanism 100 and the second filter mechanism 200.
[0038] See Figures 8 to 10 As shown, the second filtration mechanism 200 in this embodiment includes a second filter screen 220 and a third filter screen 230. Therefore, in conjunction with the first filter screen 120, this application can achieve a triple filtration effect in the fluid flow direction. In different embodiments, more third filter screens 230 can be provided according to actual filtration needs to achieve a more thorough multi-stage filtration effect. Further, the second filtration mechanism 200 also includes a first assembly 210, with the second filter screen 220 fixedly connected to the first assembly 210, and at least one of the third filter screens 230 rotatably connected to the first assembly 210, thereby realizing a relative rotation structure between the second filter screen 220 and the third filter screen 230. Specifically, the first assembly 210 is provided with a rotating shaft 211, and the third filter screen 230 is provided with at least one rotating block 231. The rotating shaft 211 passes through and is connected to the rotating block 231, so that the third filter screen 230 rotates around the rotating shaft 211.
[0039] In this embodiment, the cleaning mechanism 300 is disposed at one end of the housing 110, and the second filtration mechanism 200 passes through the cleaning mechanism 300 into the filter installation space 111. Further, the cleaning mechanism 300 also includes a second assembly 310, and the brush 320 is connected to the second assembly 310. The second assembly 310 is provided with a plug-in block 312 and a pressing part 311. The housing 110 is provided with a plug-in groove. One end of the plug-in block 312 is connected to the pressing part 311, and the other end passes through the plug-in groove to detachably connect the second assembly 310 and the housing 110. In actual use, the plug-in block 312 and the plug-in groove cooperate to realize the connection between the cleaning mechanism 300 and the housing 110. When disassembly is required, it is only necessary to press the pressing part 311 of the second assembly 310 to disengage the plug-in block 312 from the plug-in groove.
[0040] Corresponding to the second filter screen 220 and the third filter screen 230 in this application, this embodiment provides two brushes 320, which are connected to the second assembly 310 via two mounting beams 313. Furthermore, the mounting beams 313 are positioned facing the windward sides of the second filter screen 220 and the third filter screen 230 to ensure that the brushes 320 can contact the windward sides of the second filter screen 220 and the third filter screen 230. It should be noted that during the filtration process, easily accumulated impurities 400, such as lint, tend to concentrate on the windward side of the filter screen. If the leeward side of the filter screen is brushed, it is difficult to completely remove the impurities 400. Therefore, the structural design of this application maximizes the cleaning effect of the cleaning mechanism 300.
[0041] The following describes the usage process and principle of the composite multi-stage filter in this embodiment:
[0042] During the filtration process, the first filter mechanism 100 and the second filter mechanism 200 can form a triple filtration protection for the fluid to be filtered. When a simple cleaning of the filter screen is required, the second filter mechanism 200 needs to be pulled to make a relative displacement with the first filter mechanism 100. At this time, the brush 320 in the cleaning mechanism 300 can repeatedly brush the windward side of the corresponding filter screen during the repeated pulling process, thereby cleaning the second filter mechanism 200. After that, the second filter mechanism 200 is pulled out, and the impurities 400 will be concentrated in the filter screen installation space 111. At this time, it is only necessary to tilt the first filter mechanism 100 to complete a complete cleaning process.
[0043] As usage time increases, there may be situations in actual operation where a thorough cleaning of this filter is necessary. In such cases, simply remove the second filter mechanism 200 and flip over the second filter screen 220 and the third filter screen 230 to fully expose the entire filter surface of the second filter mechanism 200, thus facilitating thorough cleaning. For details, please refer to [link to documentation]. Figure 11 As shown, Figure 11 a) Figure 11 b) and Figure 11 c) This section shows the specific rinsing process of the brush 320 of the second filter mechanism 200, the first filter screen 120, and the housing 110 using an external water source during the thorough cleaning process. In different working environments, it can also be thoroughly cleaned by blowing, soaking, brushing, etc. Example 2
[0044] This embodiment provides a washer-dryer combo machine, which includes the aforementioned composite multi-filter, drying equipment, and cleaning equipment. The drying equipment and the cleaning equipment are interconnected. The composite multi-filter is disposed within the drying equipment. Furthermore, in summary, the composite multi-filter and washer-dryer combo machine of this utility model achieves a multi-filtration process through the detachable first filter mechanism 100 and second filter mechanism 200, thereby improving the filtration effect. Simultaneously, this application directly cleans the air-facing surface of the multi-layer filter screens through the cleaning mechanism, thus achieving not only simultaneous and efficient cleaning of the multi-layer filter screens but also significantly improving the cleaning effect. In addition, this application can also selectively clean the relatively flip-up second filter screen 220 and at least one third filter screen 230, thereby achieving thorough cleaning of the filter during long-term use, thereby improving the filtration effect and extending its service life. Compared with current conventional filtration technologies, this application has significant advantages such as ease of operation, thorough cleaning, flexible use, high filtration quality, and long service life, providing a new approach to high-quality filtration technology.
[0045] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A composite multi-stage filter, characterized in that: include: The first filtration mechanism includes a housing and a first filter screen. The housing has a filter screen installation space that communicates with the outside, and the first filter screen is disposed in the filter screen installation space. The second filter mechanism is pluggably connected to the housing and includes a second filter screen and at least one third filter screen. In the filtering state, the first filter screen, the second filter screen and the third filter screen are arranged in parallel and spaced apart in the filter screen installation space. A cleaning mechanism connected to the housing includes at least two brushes spaced apart along the thickness direction of the housing. In the filtration state, the at least two brushes respectively contact the windward side of the second filter screen and at least one of the third filter screens.
2. The composite multi-stage filter according to claim 1, characterized in that: The housing is provided with at least two sliding tracks, which are located at the edge of the filter installation space. Both sliding tracks extend along the length of the housing. The second filter and the third filter are provided with sliders, which are slidably connected to the sliding tracks.
3. The composite multi-stage filter according to claim 1, characterized in that: The second filtration mechanism further includes a first assembly, the third filter screen is rotatable relative to the second filter screen, the second filter screen is fixedly connected to the first assembly, and at least one of the third filter screens is rotatably connected to the first assembly.
4. The composite multi-stage filter according to claim 3, characterized in that: The first assembly is provided with a rotating shaft, and the third filter screen is provided with at least one rotating block. The rotating shaft is connected to the rotating block so that the third filter screen rotates around the rotating shaft.
5. The composite multi-stage filter according to claim 1, characterized in that: The cleaning mechanism is located at one end of the housing, and the second filtration mechanism passes through the cleaning mechanism into the filter installation space.
6. The composite multi-stage filter according to claim 1, characterized in that: The cleaning mechanism further includes a second assembly, to which the brush is connected. The second assembly has a plug and a pressing part. The housing has a plug groove. One end of the plug is connected to the pressing part, and the other end passes through the plug groove to detachably connect the second assembly to the housing.
7. The composite multi-stage filter according to claim 6, characterized in that: The second assembly is provided with at least two mounting beams, and at least two of the brushes are respectively connected to at least two of the mounting beams.
8. The composite multi-stage filter according to claim 1, characterized in that: The first filtering mechanism further includes a handle, a connecting assembly, and a seal. The handle is connected to the housing via the connecting assembly, and the seal is disposed between the housing and the handle.
9. The composite multi-stage filter according to claim 1, characterized in that: In the disassembled state, the second filter mechanism is pulled out of the housing, and impurities are received by the filter installation space.
10. A washer-dryer combo, characterized in that: The invention includes the composite multi-filter, drying equipment, and cleaning equipment as described in any one of claims 1 to 8, wherein the drying equipment and the cleaning equipment are interconnected, and the composite multi-filter is disposed in the drying equipment.