A multi-stage dust collecting and filtering device of a building cleaning robot

Abstract

The utility model discloses a kind of multi-stage dust collecting filtering devices of building cleaning robot, comprising: first dust collecting box, it is set first inlet, first outlet, filter hole plate is arranged in it, first inlet is connected to the dust collection structure of cleaning robot;Separation tank, it is assembled with multiple-cone separator in it, second inlet on it is connected to first outlet by connecting pipe;Second dust collecting box, it is set exhaust, first dust collecting box, separation tank are assembled on second dust collecting box, the inner chamber of second dust collecting box and separation tank is communicated;Filtering box, it is assembled on separation tank, the inner chamber of it and the inner chamber of separation tank is communicated, it is set filter assembly in it, the flow hole aperture of filter assembly is less than the flow hole aperture of filter hole plate, filtering box is also set second outlet, second outlet is connected to fan. The utility model can solve the problem that filter assembly is easy to block when using the dust collecting filtering device of existing cleaning robot, so that service life is reduced, and filtration performance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device technical field, concretely is a kind of multistage dust collecting filter device of building cleaning robot. BACKGROUND

[0002] The dust collecting system of existing cleaning robot is mostly directly connected with dust collecting box by suction structure, clean gas is discharged by fan after gas and dust impurities are filtered and separated, and it mostly uses simple design of one-time separation, which makes different particle size impurities extruded and embedded during use, so that the filter assembly is easy to be blocked, service life is reduced, and filtration performance is reduced.In addition, due to the presence of large cement blocks on construction sites, mixed loading of separated impurities of different particle sizes will increase the number of dust discharge and dumping and the operation difficulty.In addition, the exhaust treatment is relatively simple, the exhaust gas carries more dust, and the filtration performance is poor. SUMMARY

[0003] The utility model discloses a multistage dust collecting filter device of building cleaning robot, which can solve the problem of easy blocking of filter assembly during use of the dust collecting filter device of existing cleaning robot, reduce service life and improve filtration performance.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multistage dust collecting filter device of building cleaning robot, comprising:

[0005] A first dust collecting box is provided with a first inlet and a first outlet communicating with the inner cavity thereof, and a filter hole plate is arranged in the first dust collecting box.

[0006] A separation tank is assembled with a multi-cone separator, and a second inlet communicating with the inner cavity of the separation tank is connected to the first outlet through a connecting pipe.

[0007] A second dust collecting box is provided with a discharge outlet, and the first dust collecting box and the separation tank are assembled on the second dust collecting box.

[0008] A filter box is assembled on the separation tank, and the inner cavity of the filter box communicates with the inner cavity of the separation tank.

[0009] As a further description of the above technical scheme:

[0010] The multi-cone separator divides the inner cavity of the separation box into two independent chambers distributed vertically and horizontally. It includes a number of cyclone cone structures that are connected in a ring shape through a connection structure inside. The outer sides of the cyclone cone structures are positioned on the second flange inside the separation box through a number of first flanges arranged vertically. The bottoms and tops of the cyclone cone structures are provided with openings.

[0011] As a further description of the above technical solution:

[0012] The inner pipe inside the second inlet extends into the separation box and is connected to the connection structure. The inner cavity of the inner pipe is connected to the inner cavities of the cyclone cone structures through a number of tangential air inlets that are radially arranged outside the connection structure.

[0013] As a further description of the above technical solution:

[0014] The filter component includes a primary filter and a high-efficiency filter. The airflow separated by the multi-cone separator flows through the primary filter, the high-efficiency filter, and the second outlet in sequence.

[0015] As a further description of the above technical solution:

[0016] Both the primary filter and the high-efficiency filter are HEPA filters.

[0017] As a further description of the above technical solution:

[0018] ​​​​​​​​​​​​

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of a multi-stage dust collection and filtration device for a building cleaning robot. Figure 1 .

[0024] Figure 2 A schematic diagram of the structure of a multi-stage dust collection and filtration device for a building cleaning robot. Figure 2 .

[0025] Figure 3 A multi-stage dust collection and filtration device for a building cleaning robot Figure 2 Sectional view at section AA.

[0026] Figure 4 A schematic diagram of the structure of a multi-stage dust collection and filtration device for a building cleaning robot. Figure 3 .

[0027] Legend:

[0028] 1. First dust collection box; 2. First inlet; 3. First outlet; 4. Filter plate; 5. Separation box; 6. Multi-cone separator; 7. Connecting pipe; 8. Second inlet; 9. Second dust collection box; 10. Filter box; 11. Second outlet; 12. Inner pipe; 13. Connection structure; 14. Pre-filter; 15. High-efficiency filter; 16. Explosion-proof valve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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, they should not be construed as limitations on this utility model.

[0031] Please see Figures 1-4 This utility model provides a technical solution: a multi-stage dust collection and filtration device for a building cleaning robot, comprising:

[0032] The first dust collection box 1 is provided with a first inlet 2 and a first outlet 3 that connect to its inner cavity. A filter plate 4 is arranged inside the box. The first inlet 2 is connected to the dust suction structure of the cleaning robot.

[0033] The separation box 5 is equipped with a multi-cone separator 6, and the second inlet 8, which is connected to the inner cavity of the separation box 5, is connected to the first outlet 3 through a connecting pipe 7;

[0034] The second dust collection box 9 is provided with an outlet. The first dust collection box 1 and the separation box 5 are both assembled on the second dust collection box 9. The inner cavity of the second dust collection box 9 is connected to the inner cavity of the separation box 5.

[0035] A filter box 10 is mounted on the separation box 5, and its inner cavity is connected to the inner cavity of the separation box 5. A filter assembly is provided inside the filter assembly. The diameter of the flow hole of the filter assembly is smaller than the diameter of the flow hole of the filter plate 4. The filter box 10 is also provided with a second outlet 11 that connects to its inner cavity. The second outlet 11 is connected to a fan.

[0036] The multi-cone separator 6 divides the inner cavity of the separation box 5 into two independent chambers distributed vertically. Each chamber includes several cyclone cone structures arranged in a ring shape, connected by a connecting structure 13 on their inner sides. The outer sides of each cyclone cone structure are positioned on a second flange on the inner side of the separation box 5 by several vertically arranged first flanges. Openings are provided at the bottom and top of each cyclone cone structure. The inner tube 12 on the inner side of the second inlet 8 extends into the separation box 5 and connects to the connecting structure 13. The inner cavity of the inner tube 12 is connected to the inner cavities of each cyclone cone structure through several radially arranged tangential air inlets on the outer side of the connecting structure 13. This structural design allows the dust-laden airflow entering the separation box 5 to directly enter the cyclone cone structures for centrifugal separation via the inner tube 12 and connecting structure 13. Compared to conventional multi-cone separator structures without inner tubes, this reduces airflow velocity loss, increases flow efficiency, and avoids the airflow within the separation box 5 affecting the separated impurities and causing them to be re-raised, thus reducing separation efficiency.

[0037] The filtration assembly includes a pre-filter 14 and a high-efficiency filter 15. The airflow separated by the multi-cone separator 6 flows sequentially through the pre-filter 14, the high-efficiency filter 15, and the second outlet 11. Both the pre-filter 14 and the high-efficiency filter 15 are HEPA filters. This improves the filtration performance of the filter box 10.

[0038] The second dust collection box 9 is also equipped with an explosion-proof valve 16. Since the second dust collection box 9 temporarily stores fine dust and other substances, the explosion-proof valve 16 is used to prevent the risk of explosion caused by dust.

[0039] The working principle of the multi-stage dust collection and filtration device for a building cleaning robot in this embodiment includes: During use, the cleaning robot uses a suction structure to suction the surface to be cleaned. The dust-laden airflow enters the first inlet 2 and is filtered through the filter plate 4 to achieve primary filtration. The airflow then enters the separation box 5 through the first outlet 3, connecting pipe 7, and second inlet 8. The airflow enters the inner pipe 12, connecting structure 13, and enters the cyclone cone structure tangentially through the tangential air inlet to achieve secondary centrifugal separation filtration. The separated impurities fall into the second dust collection box 9 for unified collection. The airflow rises and undergoes tertiary filtration through the filter assembly. The clean airflow is discharged from the device through the second outlet 11 and discharged to the outside of the cleaning robot by a high-power fan. At this time, the dust cleanliness of the gas can reach the level of 100,000. The filter assembly consists of a pre-filter and a high-efficiency HEPA filter to extend the service life of the filter assembly.

[0040] In summary, due to the adoption of the above technical solution, the multi-stage dust collection and filtration device for a building cleaning robot in this embodiment has the following advantages compared to the prior art:

[0041] 1. The filtration device of this utility model is configured with a first dust collection box, a separation box, a second dust collection box, and a filter box. It achieves segmented filtration, separation, and collection of impurities of different particle sizes through a filter plate, a multi-cone separator, and filter components. This avoids the problems of conventional single-stage separation designs where impurities of different sizes are squeezed and interlocked, leading to easy clogging of the filter components, reduced service life, and decreased filtration performance. This improves the filtration performance of the device and reduces the frequency of device maintenance.

[0042] 2. During operation, the dust-laden airflow entering the separation chamber is directly introduced into the cyclone cone structure through the inner pipe and connecting structure for centrifugal separation. Compared to conventional multi-cone separator structures without an inner pipe, this reduces airflow velocity loss, increases flow efficiency, and avoids the airflow within the separation chamber affecting the separated impurities and causing them to be re-raised, thus reducing separation efficiency. An explosion-proof valve is installed on the second dust collection box to ensure explosion-proof dust collection. The filter assembly consists of a pre-filter and a high-efficiency HEPA filter, further improving filtration performance.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage dust collection and filtration device for a building cleaning robot, characterized in that, include: The first dust collection box is provided with a first inlet and a first outlet that connect to its inner cavity. A filter plate is installed inside the box. The first inlet is connected to the dust collection structure of the cleaning robot. A separation box, which is equipped with a multi-cone separator, has a second inlet that communicates with the inner cavity of the separation box and is connected to the first outlet via a connecting pipe; The second dust collection box is provided with an outlet. The first dust collection box and the separation box are both assembled on the second dust collection box. The inner cavity of the second dust collection box is connected to the inner cavity of the separation box. A filter box is assembled on the separation box, and its inner cavity is connected to the inner cavity of the separation box. A filter assembly is installed inside the filter assembly. The diameter of the flow holes of the filter assembly is smaller than the diameter of the flow holes of the filter plate. The filter box is also provided with a second outlet that connects to its inner cavity. The second outlet is connected to a fan.

2. The multi-stage dust collection and filtration device for a building cleaning robot according to claim 1, characterized in that, The multi-cone separator divides the inner cavity of the separation box into two independent chambers distributed vertically. It includes several cyclone cone structures arranged in a ring shape and connected by a connecting structure on the inner side. The outer side of the cyclone cone structure is positioned on the second flange on the inner side of the separation box by several vertically arranged first flanges. The bottom and top of the cyclone cone structure are provided with openings.

3. The multi-stage dust collection and filtration device for a building cleaning robot according to claim 2, characterized in that, The inner tube on the inner side of the second inlet extends into the separation box and connects to the connecting structure. The inner cavity of the inner tube is connected to the inner cavity of each of the cyclone cone structures through a number of radial tangential air inlets on the outer side of the connecting structure.

4. The multi-stage dust collection and filtration device for a building cleaning robot according to claim 1, characterized in that, The filtration assembly includes a pre-filter and a high-efficiency filter. The airflow separated by the multi-cone separator flows sequentially through the pre-filter, the high-efficiency filter, and the second outlet.

5. The multi-stage dust collection and filtration device for a building cleaning robot according to claim 4, characterized in that, Both the primary filter and the high-efficiency filter are HEPA filters.

6. The multi-stage dust collection and filtration device for a building cleaning robot according to claim 1, characterized in that, The second dust collection box is also equipped with an explosion-proof valve.

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