Cleaning apparatus

Abstract

The utility model provides a kind of cleaning equipment (10), including main body (100), water pump (200) and filter device (300), the filter device (300) is detachably connected in the main body (100), wherein, the filter device (300) includes: outer filter layer (301), inner filter layer (302) and support (303), the inner filter layer (302) is located on the support (303), and the outer filter layer (301) is detachably covered in the outer side of the inner filter layer (302);Wherein, the filter material of the outer filter layer (301) is different from the filter material of the inner filter layer (302).

Description

Technical Field

[0001] This utility model relates to the field of water tank suction technology, specifically to a cleaning device. Background Technology

[0002] In cleaning equipment, the filter structure is a core component, and its performance directly affects the efficiency and effectiveness of cleaning and filtration. Currently, most existing cleaning equipment uses filter screens or filter cotton made of a single material, which results in limited filtration capacity and poor filtration effect. Furthermore, when too many particles, algae, hair, and other impurities accumulate on the filter screen or filter cotton, it will become clogged, leading to a reduction in the flow channel's ability to absorb dirt and loss of flow, thus causing the cleaning equipment to lose its ability to absorb dirt. In this case, the only solution is to replace the filter structure, but frequent replacement of the filter structure will increase the operating cost of the cleaning equipment. Utility Model Content

[0003] This application addresses the shortcomings of the prior art by providing a cleaning device, including a main body, a water pump, and a filter device. The filter device is detachably connected to the main body and includes an outer filter layer, an inner filter layer, and a support. The inner filter layer is disposed on the support, and the outer filter layer is detachably fitted over the outer side of the inner filter layer. The filter material of the outer filter layer is different from that of the inner filter layer.

[0004] Furthermore, the filtration device also includes a housing, and the outer filter layer, the inner filter layer, and the support are all disposed within the housing.

[0005] Furthermore, a gap is formed between the outer filter layer and the inner filter layer, allowing at least a portion of the water flow to enter the gap under the action of the water pump.

[0006] Furthermore, the gap is configured such that when the water pump drains water in a first direction, at least a portion of the water flow can enter the gap under the action of the water pump; when the water pump drains water in a second direction, at least a portion of the water flow can flow out of the gap under the action of the water pump and carry out at least a portion of the dirt on the surface of the inner filter layer; wherein the first direction and the second direction are opposite.

[0007] Furthermore, the inner filter layer comprises a nylon filter screen.

[0008] Furthermore, the outer filter layer includes filter cotton.

[0009] Furthermore, the filter cotton includes polyester fiber filter cotton.

[0010] Furthermore, the inner filter layer is formed with folds and wrinkles to increase the filtration area of ​​the inner filter layer.

[0011] Furthermore, the filtration level of the outer filter layer is higher than that of the inner filter layer.

[0012] Furthermore, the filter device also includes an upper end cover; the upper end cover is detachably fixed to the outer casing, and the bracket is detachably fixed to the upper end cover.

[0013] Furthermore, the outer filter layer is detachably connected to the upper end cap.

[0014] The embodiments described in this application have the following beneficial effects:

[0015] In the cleaning equipment of this utility model, by detachably connecting the filter device to the main body, it is easier and faster for users to replace or clean the filter device during use. The key components can be maintained without disassembling the entire equipment, which greatly reduces maintenance costs and time.

[0016] In this utility model of cleaning equipment, by setting an outer filter layer and an inner filter layer inside the filtration device, and the filter material of the outer filter layer is different from that of the inner filter layer, the cleaning equipment can perform efficient dual filtration, with better filtration capacity and dirt suction effect. Furthermore, by detachably covering the outer filter layer outside the inner filter layer, on the one hand, when the filtration device becomes clogged, the outer filter layer can be removed separately for repeated cleaning or replacement without replacing the entire filtration device, thereby reducing the operating cost of the cleaning equipment. On the other hand, the outer filter layer with different filtration precision can be replaced according to the needs of different working conditions to meet different application scenarios, making the cleaning equipment more versatile. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings in the following description are merely exemplary embodiments of this disclosure.

[0018] Figure 1 This is a schematic diagram of the structure of a cleaning device according to an embodiment of the present invention;

[0019] Figure 2 This is a perspective structural diagram of a filtration device according to an embodiment of the present invention;

[0020] Figure 3 This is a perspective view of the filtration device after removing the outer filter layer according to an embodiment of the present invention;

[0021] Figure 4 This is an axial cross-sectional view of a filter device according to an embodiment of the present invention;

[0022] Figure 5This is a three-dimensional structural diagram of the inner filter layer according to an embodiment of the present invention; and

[0023] Figure 6 This is a three-dimensional structural diagram of a bracket according to an embodiment of the present invention.

[0024] Label Explanation

[0025] 10. Cleaning equipment; 100. Main body; 200. Water pump; 300. Filter device; 301. Outer filter layer; 302. Inner filter layer; 303. Bracket; 304. Top cover; 305. Slot; 306. Seal; 307. Gap. Detailed Implementation

[0026] The embodiments of this disclosure will now be described with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the protection scope of this application. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0027] In pool cleaning and maintenance equipment, the filtration unit 300 is an indispensable key component, its performance directly affecting the cleanliness of the pool water and the operating efficiency of the equipment. The filtration unit 300 is typically equipped with a filter layer; however, in actual use, pool water often contains various sizes of particles, algae, hair, leaves, and other impurities. These impurities, when drawn in and flowing through the filter layer, gradually accumulate and adhere to it, causing the filter layer pores to gradually shrink, filtration efficiency to gradually decrease, and even complete blockage. This affects the normal operation of the equipment, forcing users to frequently stop the machine to inspect and clean the filter. In related technologies, the filter layer is often a single filter screen or filter cotton. When the filter screen or filter cotton is blocked, the flow channel's suction capacity is reduced, flow is lost, and thus the cleaning device loses its suction ability.

[0028] This application provides a cleaning device 10 for a water tank. It is understood that the cleaning device 10 can be an automatic water tank cleaning robot or a handheld water tank cleaning device 10. The water tank is, for example, a pool-shaped structure. The pool-shaped structure can be a swimming pool, a water storage tank, a spa pool, a water storage tank, a water storage trough, etc. This application does not limit the specific presentation of the cleaning device 10 or the pool-shaped structure, as long as the technical principles of this application are implemented.

[0029] The cleaning device 10 of this application will now be described in detail with reference to the accompanying drawings.

[0030] This utility model discloses a cleaning device 10, including a main body 100, a water pump 200, and a filter device 300. The filter device 300 is detachably connected to the main body 100. The filter device 300 includes an outer filter layer 301, an inner filter layer 302, and a support 303. The inner filter layer 302 is disposed on the support 303, and the outer filter layer 301 is detachably sleeved on the outside of the inner filter layer 302. The filter material of the outer filter layer 301 is different from that of the inner filter layer 302.

[0031] Figure 1 This is a schematic diagram of the structure of a cleaning device according to an embodiment of the present invention. (Refer to...) Figure 1 The main body 100 can be made of insulating and waterproof materials (e.g., plastic). The main body 100 of the cleaning device 10 supports, protects and insulates the various components inside the cleaning device 10 (e.g., water pump 200 and filter device 300), ensuring that the internal motor, sensor and control board will not short-circuit and cause leakage when the cleaning device 10 comes into contact with water during cleaning operations, thus ensuring the safety of the user.

[0032] A water pump 200 is a mechanical device used to transport liquids. The water pump 200 converts mechanical energy into the kinetic energy of the liquid, causing the water to flow. The water pump 200 can be, for example, a centrifugal pump or a submersible pump, which generates centrifugal force through a rotating impeller, thereby propelling the water flow. A waterproof motor can be installed inside the water pump 200 to directly drive the impeller, allowing the water pump 200 to operate normally underwater. The water pump 200 inside the cleaning device 10 is used to draw water to be filtered from the pool into the filtration device 300 for filtration, removing impurities from the pool and achieving the effect of cleaning the pool.

[0033] The filter device 300 is detachably connected to the main body 100, allowing users to easily and quickly replace or clean the filter device 300 without disassembling the entire cleaning equipment 10, thus maintaining key components and greatly reducing maintenance costs and time.

[0034] Among them, the water pump 200 and the filter device 300 can both be as follows: Figure 1 As shown, the water pump 200 and filter device 300 are arranged inside the main body 100. In another scenario, the water pump 200 and filter device 300 can also be arranged outside the main body 100 and connected to it. This application does not limit the arrangement of the water pump 200 and filter device 300. Those skilled in the art can selectively arrange the positional relationship and connection relationship between the water pump 200, filter device 300, and main body 100 according to the principles of this application, as long as the technical principles of this application can be realized.

[0035] In one example, the filter device 300 may also include a housing.

[0036] The housing serves to protect and support the filter device 300 and other components within it. The housing is made of materials such as plastic or alloy. The housing provides space for the outer filter layer 301, the inner filter layer 302, and the support 303; in other words, the outer filter layer 301, the inner filter layer 302, and the support 303 are all housed within the housing. A water inlet is formed at the bottom of the housing, and an opening is formed at the top for inserting the filter device 300, through which filtered water can flow out.

[0037] Figure 4 This is an axial cross-sectional view of a filter device according to an embodiment of the present invention. (Refer to...) Figure 4 The filtration device 300 may include an outer filter layer 301, an inner filter layer 302, and a support 303. The inner filter layer 302 is disposed on the support 303, and the outer filter layer 301 is detachably sleeved on the outside of the inner filter layer 302.

[0038] Figure 6 This is a three-dimensional structural diagram of a bracket according to an embodiment of the present invention. Figure 6 As shown, the support 303 can be made of materials such as stainless steel, plastic, or alloy. The support 303 should have characteristics such as corrosion resistance, high strength, and resistance to deformation, and have a long service life in water.

[0039] For example, the support is a hollow cylindrical structure. The cylindrical structure can be, for example, wider at the top and narrower at the bottom, narrower at the top and wider at the bottom, or cylindrical. Figure 6 As shown, the cylindrical structure may have one or more axially extending support members or support bars to enhance the strength of the bracket 303 in the length direction, and the cylindrical structure may have one or more radially extending support members or support bars to enhance the strength of the bracket 303 in the radial direction. The above description of the bracket structure and its support members / support bars is not an exhaustive list; any bracket design conforming to the technical concept of this application is within the scope of protection of this application.

[0040] Figure 3 This is a perspective view of the filter device after removing the outer filter layer, according to one embodiment of the present invention. Figure 4 This is an axial cross-sectional view of a filter device according to an embodiment of the present invention. Figure 5 This is a three-dimensional structural diagram of the inner filter layer according to an embodiment of the present invention. Figure 5 As shown, the inner filter layer 302 is sleeve-shaped and can be fixed to the bracket 303 by snap-fit ​​or adhesive. Figure 3 and Figure 4As shown, the inner filter layer 302 is fixed to the outside of the bracket 303. The inner filter layer 302 can filter impurities in the water flow. For example, under the action of the water pump 200, the water flow containing impurities is filtered out. Figure 3 The inner filter layer 302 flows from its outer periphery to the center of the support 303, and impurities are intercepted by the inner filter layer 302 at its outer periphery. The support 303 can support and fix the inner filter layer 302, preventing the inner filter layer 302 from deforming, collapsing or moving due to water flow impact, and the support 303 improves the stability of the inner filter layer 302.

[0041] In one scenario, the inner filter layer 302 includes a nylon filter screen. The nylon filter screen has high structural strength and can be directly rinsed with a water gun to remove filtered debris, making cleaning more convenient. For example, the nylon filter screen is preferably a 180-mesh nylon filter screen, thus meeting the filtration requirements for particles as small as 91μm, making the cleaning device 10 suitable for most filtration scenarios.

[0042] Figure 2 This is a perspective structural diagram of a filtering device according to an embodiment of the present invention. Figure 2 As shown, the outer filter layer 301 is sleeve-shaped and detachably disposed outside the inner filter layer 302. When the filter device 30 filters water, the water flows radially through the outer periphery of the filter device 300, that is, the water flows through the outer filter layer 301 and the inner filter layer 302 in sequence. By setting the sleeved outer filter layer 301 and inner filter layer 302, the water flowing out of the outer filter layer 301 can enter the inner filter layer 302 for secondary filtration, enabling the filter device 300 to achieve a dual filtration function and improving the filtration effect of the cleaning equipment 10.

[0043] Furthermore, when the outer side of the filter device 300 becomes clogged with filter debris, i.e., when the outer filter layer 301 becomes clogged, the outer filter layer 301 can be disassembled separately for cleaning or replacement, thereby resolving the clogging problem of the filter device 300. Simultaneously, since the outer filter layer 301 is removable, it can be replaced with an outer filter layer 301 of different filtration precisions according to actual needs. For example, when high-level filtration is required, it can be replaced with an outer filter layer 301 with a higher mesh count and filtration grade to achieve high-precision filtration; when low-level filtration is required, it can be replaced with an outer filter layer 301 with a lower mesh count and filtration grade to achieve low-precision filtration.

[0044] The outer filter layer 301 may include, for example, filter cotton. Filter cotton can improve the filtration effect of the filter device 300 and meet the user's demand for a high filtration level. When the filter cotton is clogged, the user can easily remove it and repeatedly clean or replace it, making it more convenient to use. Since filter cotton is a consumable, it can be made with only four edges sealed and no other unnecessary processing, thereby reducing the operating cost of the cleaning equipment 10.

[0045] In one example, the filter cotton includes polyester fiber filter cotton or ES filter cotton.

[0046] Polyester fiber filter cotton is made of polyester fibers, possessing high strength and corrosion resistance, making it suitable for various environments. Its uniform fiber structure effectively filters out larger particulate impurities. Furthermore, polyester fiber filter cotton has a large dust holding capacity, long service life, and is economical and durable. Therefore, polyester fiber filter cotton offers advantages such as low cost, high strength, corrosion resistance, large dust holding capacity, and long service life. Using polyester fiber filter cotton as filter media can improve the filtration performance of cleaning equipment 10. In addition, ES (Ethylene-Propylene Side By Side) filter cotton, with its high dust holding capacity and low air resistance, performs exceptionally well in handling impurities in liquids.

[0047] The selection of filtration precision for the materials of the inner filter layer 302 and the outer filter layer 301 is merely exemplary. This application does not limit the filtration precision of the inner filter layer 302 and the outer filter layer 301. The materials of both the outer filter layer 301 and the inner filter layer 302 include, but are not limited to, filter screens, filter cotton, activated carbon, polyester fibers, etc. The specific design should be based on actual needs.

[0048] Furthermore, the filter material of the outer filter layer 301 is different from that of the inner filter layer 302, meaning that the filtration precision of the outer filter layer 301 and the inner filter layer 302 is different. Setting dual filter layers with different filtration precisions can further enhance the filtration effect of the cleaning device 10. Moreover, users can choose between dual-layer or single-layer filtration for the cleaning device 10 according to different filtration needs. If the user chooses single-layer filtration, the removable outer filter layer 301 can be removed, improving the flexibility of using the cleaning device 10.

[0049] In one example, a gap 307 is formed between the outer filter layer 301 and the inner filter layer 302.

[0050] like Figure 4As shown, gap 307 is located between outer filter layer 301 and inner filter layer 302, and there is an opening between the lower end of outer filter layer 301 and the bottom of the housing. At least a portion of the water flow can enter gap 307 through the opening under the action of the water pump 200 (as indicated by the arrow). For example, under normal operating conditions of the filter device 300 (i.e., without any blockage), under the action of the water pump 200, a portion of the water flowing into the housing can pass through outer filter layer 301 and inner filter layer 302 in sequence, and be double-filtered by both outer filter layer 301 and inner filter layer 302. Another portion bypasses outer filter layer 301 from the outside and directly enters gap 307 between outer filter layer 301 and inner filter layer 302 through the opening, and passes through inner filter layer 302, being filtered only by inner filter layer 302. The size of gap 307 can be set according to the different materials of inner and outer filter layers 301, the three-dimensional dimensions of filter device 300, or the size of impurities to be filtered. In this way, even if the outer filter layer 301 becomes clogged, water can still enter the gap 307 and pass through only the inner filter layer 302 to achieve water filtration. Even with the outer filter layer 301 clogged, the filter device 300 can still filter the water, thus ensuring that the cleaning equipment 10 still has a certain level of suction and filtration capacity. This reduces the frequency of cleaning or replacing the filter device 300 and improves the user experience.

[0051] Furthermore, the gap 307 is configured such that when the water pump drains water in a first direction, at least a portion of the water flow can enter the gap under the action of the water pump; when the water pump drains water in a second direction, at least a portion of the water flow can flow out of the gap under the action of the water pump and carry out at least a portion of the dirt on the surface of the inner filter layer; wherein the first direction and the second direction are opposite.

[0052] Specifically, when the water pump drains water in the first direction, i.e., the cleaning equipment is in normal cleaning state, at least a portion of the water flow bypasses the outer filter layer 301 and directly enters the inner filter layer 302 through the gap 307, passing through the inner filter layer 302 and being filtered only by the inner filter layer 302. When the water pump drains water in the second direction, the cleaning equipment is in backwashing state. Through backwashing, the water flow reverses and washes the inner filter layer 302, so that the dirt adsorbed on the outer surface of the inner filter layer 302 can flow out through the gap 307 with the water flow, reducing the degree of clogging of the inner filter layer 302 and thus extending the working time of the cleaning equipment.

[0053] In one example, the inner filter layer 302 is formed with folds to increase the filtration area of ​​the inner filter layer 302.

[0054] like Figure 5As shown, a filter layer with pleats has a larger filtration area than a filter layer of the same volume without pleats, resulting in higher filtration efficiency of the filter device 300. When the filter device 300 filters water, impurities preferentially accumulate in the recesses of the pleats in the inner filter layer 302, which can accommodate more impurities, making the inner filter layer 302 less prone to clogging and extending its service life. Preferably, the unfolded planar area of ​​the inner filter layer 302 is more than 2.5 times the outer circumferential area after the pleats are formed on the inner filter layer 302, which can further improve the filtration effect. Preferably, as... Figure 3 and Figure 5 As shown, the folds of the pleats are aligned with the axial direction of the support 303. This allows water to flow along the folds to reach all parts of the inner filter layer 302 when it flows past the lower end of the outer filter layer 301 and directly into the gap 307 between the outer filter layer 301 and the inner filter layer 302, enabling rapid filtration. Of course, in other cases, the folds can be oriented in other directions, which are also within the scope of this application.

[0055] In one example, the filtration level of the outer filter layer 301 is higher than that of the inner filter layer 302.

[0056] The outer filter layer 301 has a higher filtration precision than the inner filter layer 302, and the impurities it can intercept are much smaller than those intercepted by the inner filter layer 302. This means that relatively fine filtration is achieved through the outer filter layer 301, while relatively coarse filtration is achieved through the inner filter layer 302. In use, the outer filter layer 301 can be removed, and only the inner filter layer 302 is used in the filter device 300 for coarse filtration; alternatively, the outer filter layer 301 can be fitted over the inner filter layer 302, using both layers simultaneously for fine filtration. This allows for both coarse and fine filtration needs to be met with simple structural adjustments to the filter device 300, making it more convenient and applicable to a wider range of scenarios. Furthermore, if the outer filter layer 301 becomes clogged and filtration requirements are not high, it can be removed, allowing only the inner filter layer 302 to perform relatively coarse filtration, thus achieving the desired low filtration efficiency.

[0057] Understandably, at the same level of dirtiness, although the outer filter layer 301 has a higher filtration precision and can improve the filtration level, it is also more prone to clogging. The inner filter layer 302, on the other hand, has a lower filtration precision than the outer filter layer 301, so it is less prone to clogging. Even if the outer filter layer 301 is clogged, the user can use the inner filter layer 302 for filtration without replacing or removing it. The specific filtration method has been described in detail above and will not be repeated here.

[0058] In one example, such as Figures 2 to 4 As shown, the filter device 300 also includes an upper end cover 304, which is detachably fixed to the outer casing, and the bracket 303 is detachably fixed to the upper end cover 304.

[0059] Specifically, the upper cover 304 is made of materials such as plastic or alloy. The upper cover 304 is placed on the upper part of the outer casing, and is hollow, corresponding to the opening at the top of the outer casing, allowing filtered water to flow out smoothly. The upper cover 304 is detachably connected to the outer casing, and the detachable connection methods include, but are not limited to, snap-fit ​​connections and threaded connections, so that the upper cover 304 can be easily removed from the outer casing for cleaning of the interior. The upper cover 304 has a sealing effect; in one case, a sealing groove is formed on the outer circumference of the upper cover 304, such as... Figures 2 to 4 As shown, a sealing element 306 is provided in the sealing groove. The sealing element 306 achieves the seal between the upper end cover 304 and the outer shell, preventing the water to be filtered from passing through the gap between the upper end cover 304 and the outer shell, thus affecting the filtration effect.

[0060] The sealing groove and sealing element 306 described above are merely examples. This application does not limit the sealing method between the upper end cover 304 and the outer shell, as long as the technical principle of this application can be achieved.

[0061] The bracket 303 is detachably fixed to the upper end cover 304, which also facilitates the disassembly and separation of the bracket 303 and the upper end cover 304. The upper end cover 304 fixes the position of the bracket 303, preventing it from moving due to water flow impact, and thus fixing the inner filter layer 302 disposed on the bracket 303, preventing poor filtration effect caused by movement of the inner filter layer 302. The fixing of the bracket 303 by the upper end cover 304 improves the stability of the inner filter layer 302. In one case, the bracket 303 can be connected by a snap-fit ​​structure, such as... Figure 6As shown, the upper end of the bracket 303 is provided with a slot 305, and the upper cover 304 is provided with a buckle that cooperates with the slot 305. The bracket 303 and the upper cover 304 are connected by the buckle engaging with the slot 305, making assembly and disassembly more convenient. Of course, in other cases, the slot 305 can also be located on the upper cover 304, and the buckle on the bracket 303. The bracket 303 is detachably fixed to the upper cover 304. When the inner filter layer 302 on the bracket 303 is clogged with dirt, only the upper cover 304 needs to be separated from the main body, and the bracket 303 can be removed from the upper cover 304 for cleaning. Similarly, when the bracket 303 is damaged, only the bracket 303 needs to be removed from the upper cover 304 for replacement. The detachable bracket 303 and upper cover 304 improve operational flexibility and simplify operation, further reducing maintenance costs and time.

[0062] The present invention does not limit the above-mentioned detachable connection method, which can be selected by those skilled in the art according to the actual situation, as long as the technical principle of this application can be realized.

[0063] Furthermore, the outer filter layer 301 is detachably connected to the upper end cover 304.

[0064] The detachable connection has been described in detail above and will not be repeated here. If the outer filter layer 301 is clogged with impurities, it can be removed from the upper cover 302 for cleaning or replacement. If the user chooses to clean a single filter layer, only the outer filter layer 301 needs to be removed. The detachable connection between the outer filter layer 301 and the upper cover 304 reduces maintenance costs and time. The upper cover 304 serves to fix the outer filter layer 301, preventing it from moving under the impact of water flow. Movement of the outer filter layer 301 may cause the gap 307 between the outer filter layer 301 and the inner filter layer 302 to disappear. Consequently, when the outer filter layer 301 is clogged, water cannot pass through the gap 307 to be filtered by the inner filter layer 302, reducing the filtration efficiency of the filter device 300.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this application, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0068] The above are merely exemplary embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope described in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cleaning device (10), characterized in that, The system includes a main body (100), a water pump (200), and a filter device (300). The filter device (300) is detachably connected to the main body (100). The filter device (300) includes an outer filter layer (301), an inner filter layer (302), and a support (303). The inner filter layer (302) is disposed on the support (303), and the outer filter layer (301) is detachably sleeved on the outside of the inner filter layer (302). The filter material of the outer filter layer (301) is different from that of the inner filter layer (302); A gap (307) is formed between the outer filter layer (301) and the inner filter layer (302), and at least part of the water flow can enter the gap (307) under the action of the water pump (200).

2. The cleaning device (10) according to claim 1, characterized in that, The filter device (300) also includes a housing, and the outer filter layer (301), the inner filter layer (302) and the support (303) are all disposed inside the housing.

3. The cleaning equipment (10) according to claim 1, characterized in that, The gap (307) is configured as follows: When the water pump discharges water in the first direction, at least a portion of the water flow can enter the gap under the action of the water pump. When the water pump drains water in the second direction, at least a portion of the water flow can flow out from the gap under the action of the water pump and carry out at least a portion of the dirt on the surface of the inner filter layer; The first direction and the second direction are opposite.

4. The cleaning device (10) according to claim 1, characterized in that, The inner filter layer (302) includes a nylon filter.

5. The cleaning equipment (10) according to claim 1, characterized in that, The outer filter layer (301) includes polyester fiber filter cotton or ES filter cotton.

6. The cleaning device (10) according to claim 1, characterized in that, The inner filter layer (302) has folds and wrinkles to increase the filtration area of ​​the inner filter layer (302).

7. The cleaning device (10) according to claim 1, characterized in that, The filtration level of the outer filter layer (301) is higher than that of the inner filter layer (302).

8. The cleaning device (10) according to claim 2, characterized in that, The filter device (300) also includes an upper end cap (304). The upper cover (304) is detachably fixed to the outer shell, wherein the bracket (303) is detachably fixed to the upper cover (304).

9. The cleaning device (10) according to claim 8, characterized in that, The outer filter layer (301) is detachably connected to the upper end cap (304).

10. The cleaning device (10) according to claim 1, characterized in that, The cleaning device (10) is a handheld pool cleaner, and the water pump (200) is located above the filter device (300).

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