A floor brush and surface cleaning device with an expandable sludge collection bin.

Abstract

This disclosure proposes a floor brush with an expandable sludge collection chamber, including a housing (1) and a sludge collection chamber (30) installed therein, the sludge collection chamber (30) is used to collect dirt, and also includes a suction channel (31), one end of the suction channel (31) is connected to the sludge collection chamber (30), and the other end of the suction channel (31) is used to connect to an expansion section (32), the expansion section (32) is disposed outside the floor brush, when the expansion section (32) is connected, the expansion section (32) is used to store the liquid transported through the suction channel (31), thereby freeing up the capacity of the sludge collection chamber (30); the floor brush can be cleaned without the need for frequent emptying by the user, improving the cleaning endurance; a surface cleaning device using the aforementioned floor brush is also proposed.

Description

Technical Field

[0001] This utility model relates to the technical field of surface cleaning devices, specifically a floor brush and surface cleaning device with an expandable dirt collection bin. Background Technology

[0002] Floor brushes are an important cleaning unit in surface cleaning devices, such as vacuum cleaners, floor scrubbers, and robotic vacuum cleaners. Floor brushes include roller brushes, which use rotation to draw dirt into the brush. Some floor brushes have a built-in dirt collection chamber. However, in indoor environments such as homes and offices, floor brushes are not made large for flexible cleaning, such as reaching under sofas. This results in a small dirt collection chamber, which easily fills up in liquid environments, requiring frequent emptying and reducing the user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and propose a floor brush with an expandable dirt collection bin, which can improve the cleaning endurance without the need for frequent emptying by the user; it also proposes a surface cleaning device that uses the aforementioned floor brush.

[0004] Compared with the prior art, this utility model proposes a floor brush with an expandable sludge collection tank, including a housing and a sludge collection tank installed therein. The sludge collection tank is used to collect dirt and grime. It also includes a suction channel, one end of which is connected to the sludge collection tank and the other end of which is connected to an expansion section. The expansion section is located outside the floor brush. When the expansion section is connected, it is used to store the liquid transported through the suction channel, thereby freeing up the capacity of the sludge collection tank.

[0005] Compared with the prior art, the present invention has the following advantages after adopting the above structure:

[0006] This disclosure improves upon the design by not increasing the size of the floor brush itself, but instead incorporating a suction channel. One end of the suction channel connects to the sludge collection chamber, and the other end connects to the expansion section, which is located outside the floor brush. When connected, the expansion section stores the liquid transported through the suction channel, thus freeing up space in the sludge collection chamber. With this design, users do not need to frequently empty the sludge during at least one cleaning cycle. For example, when cleaning an area of ​​100 square meters, users do not need to frequently empty the sludge, thus improving cleaning endurance. After cleaning, users can choose to clean the sludge collection chamber and / or the expansion section to prepare for the next cleaning or maintain hygiene.

[0007] In some embodiments, the housing is detachably installed with a sludge collection box, which has a sludge collection chamber. The sludge collection box can be removed so that the sludge in the sludge collection chamber can be emptied separately.

[0008] In some embodiments, the housing has a recess with an upper insertion port, and the sludge collection box is detachably installed in the recess in the vertical direction.

[0009] In some embodiments, the bottom of the recess is provided with a first interface, which serves as one end of the suction channel. The sludge collection box is provided with a second interface that mates with the first interface. When the sludge collection box is installed in the recess in the vertical direction, the first interface and the second interface are connected so that one end of the suction channel is connected to the sludge collection chamber.

[0010] In some embodiments, the first interface includes a protrusion and a sealing ring, and the second interface includes a insertion hole at the bottom of the sludge collection box, the insertion hole causing the inner bottom of the sludge collection box to bulge upwards above the surface of the inner bottom of the sludge collection box, and when the sludge collection box is installed in the recess in the vertical direction, the protrusion carrying the sealing ring is inserted and fitted into the insertion hole.

[0011] In some embodiments, the sludge collection chamber is further provided with a sludge-blocking structure that prevents solid dirt from being drawn into the expansion section through the suction channel.

[0012] In some embodiments, the dirt-blocking structure includes a dirt-blocking plate.

[0013] In some embodiments, the dirt-blocking structure further includes a first connecting post, the first connecting post having two or more dirt-blocking plates arranged circumferentially, and the first connecting post having a connecting hole or groove between at least one set of adjacent dirt-blocking plates.

[0014] In some embodiments, the sludge collection tank is further provided with a first connecting column and a second connecting column. The first connecting column and the second connecting column are separately provided and connected by a connecting pipe. The first connecting column is provided with a connecting hole or groove, and the second connecting column is connected to one end of the suction channel. Liquid enters the suction channel through the connecting hole or groove of the first connecting column, the connecting pipe, and the second connecting column.

[0015] In some embodiments, the first connecting post is provided with two or more baffles in the circumferential direction, and the first connecting post is provided with a connecting hole or groove between at least one set of adjacent baffles.

[0016] In some embodiments, the inlet of the second connecting column is positioned above the bottom surface of the sludge collection bin. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection bin after the cover has been removed.

[0018] Figure 2 A floor brush with an expandable sludge collection bin. Figure 1 A three-dimensional schematic diagram after removing the connecting pipe.

[0019] Figure 3 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection chamber, with the sludge collection box removed and viewed from the front.

[0020] Figure 4 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection chamber, with the sludge collection box removed and viewed from the rear.

[0021] Figure 5 This is a top view schematic diagram of a floor brush with an expandable sludge collection bin.

[0022] Figure 6 for Figure 5 A schematic diagram of the AA section.

[0023] Figure 7 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection compartment when the sludge collection box is removed.

[0024] Figure 8 This is a three-dimensional schematic diagram of a sludge collection box after the lid is opened.

[0025] Figure 9 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection chamber, with the roller brush removed, viewed from the front.

[0026] Figure 10 This is a three-dimensional schematic diagram of a floor brush with an expandable sludge collection box, with the sludge collection box removed, viewed from a top side.

[0027] Figure 11 This is a three-dimensional schematic diagram of a bottom shell.

[0028] Explanation of reference numerals in the attached drawings: 1-Shell, 2-Roller brush, 3-Collection box, 4-Recess, 5-First opening, 6-Second opening, 7-Liquid inlet, 8-Solid inlet, 9-Liquid interface, 10-Solid interface, 11-Scraper, 12-Comb teeth, 13-First collection chamber, 14-Second collection chamber, 15-Connecting channel, 16-Cover, 17-Upper opening, 18-Front bottom surface, 19-Lower front edge, 20-Inner bottom surface, 21-Lower edge, 22-... -Step, 23-Bottom surface, 24-Box body, 25-First sealing strip, 26-Bottom shell, 27-Mating surface, 28-Extended mating part, 29-Baffle, 30-Soil collection bin, 31-Suction flow channel, 32-Expansion section, 33-First interface, 34-Second interface, 35-Protrusion, 36-Sealing ring, 37-Insertion hole, 38-Soil baffle, 39-First connecting post, 40-Groove, 41-Second connecting post, 42-Connecting pipe, 43-Inlet. Detailed Implementation

[0029] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The embodiments described below are merely examples, and other obvious variations will arise for those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0030] Those skilled in the art should understand that in the disclosure of this utility model, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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, the above terms should not be construed as a limitation of this utility model.

[0031] like Figures 1 to 11 As shown, this disclosure proposes a floor brush with an expandable sludge collection chamber, including a housing 1 and a sludge collection chamber 30 installed therein. The sludge collection chamber 30 is used to collect dirt. The housing 1 has a roller brush cavity, in which a roller brush 2 is installed. It also includes a suction channel 31, one end of which is connected to the sludge collection chamber 30, and the other end of which is connected to an expansion section 32. The expansion section 32 is located outside the floor brush. When the expansion section 32 is connected, it is used to store liquid transported through the suction channel 31, thereby freeing up the capacity of the sludge collection chamber 30. The sludge collection chamber 30 is, for example, the first sludge collection chamber 13 described below, and the suction channel 31 is, for example, a channel provided by a pipeline.

[0032] like Figure 1 , 3 As shown in Figure 4, the housing 1 has a detachable sludge collection box 3, which has a sludge collection chamber 30. The sludge collection box 3 can be removed to empty the sludge in the sludge collection chamber 30 separately. In this way, when cleaning the surface being cleaned, the liquid in the sludge collection chamber 30 can be transferred to the expansion section 32 through the suction channel 31, thereby providing continuous cleaning capability. After cleaning is completed, the sludge collection box 3 can be removed to empty the sludge in the sludge collection chamber 30 separately, making cleaning more convenient and maintaining hygiene.

[0033] In some embodiments, such as Figure 1 , 3 As shown in Figure 4, the housing 1 has a recess 4 with an upper insertion port, and the sludge collection box 3 is detachably installed in the recess 4 in the vertical direction. This facilitates the disassembly and assembly of the sludge collection box 3.

[0034] Furthermore, such as Figure 1 , 3As shown in Figure 4, the bottom of the recess 4 is provided with a first interface 33, which serves as one end of the suction channel 31. The sludge collection box 3 is provided with a second interface 34 that mates with the first interface 33. When the sludge collection box 3 is installed in the recess 4 in the vertical direction, the first interface 33 and the second interface 34 are connected so that one end of the suction channel 31 is connected to the sludge collection chamber 30. This facilitates the disassembly and assembly of the sludge collection box 3 and the connection of one end of the suction channel 31 to the sludge collection chamber 30.

[0035] Furthermore, such as Figure 1 , 3 As shown in Figure 4, the first interface 33 includes a protrusion 35 and a sealing ring 36, and the second interface 34 includes a insertion hole 37 located at the bottom of the sludge collection box 3. The insertion hole 37 causes the inner bottom of the sludge collection box 3 to bulge upwards, higher than the surface of the inner bottom of the sludge collection box 3. When the sludge collection box 3 is installed in the recess 4 in the vertical direction, the protrusion 35, carrying the sealing ring 36, is inserted and fitted into the insertion hole 37. In this way, on the one hand, it is convenient to connect the first interface 33 and the second interface 34, and on the other hand, it is beneficial to seal and ensure a reliable connection.

[0036] In some embodiments, such as Figure 1 As shown, the sludge collection chamber 30 is specifically equipped with a sludge-blocking structure that prevents solid dirt from being drawn into the expansion section 32 through the suction channel 31. In this way, solid dirt, such as solid particles and liquid dirt sediment, is mainly retained in the sludge collection chamber 30, while the suction mainly involves liquid. Thus, on the one hand, it is less likely to clog the suction channel 31, and more importantly, keeping solid dirt in the sludge collection chamber 30 makes cleaning easier, such as removing the sludge collection box 3 for emptying and rinsing. The expansion section 32 mainly stores liquid, and because solid dirt is retained in the sludge collection chamber 30, the expansion section 32 is also easier to clean after the liquid is poured out.

[0037] Furthermore, such as Figure 1 , 2 As shown, the dirt-blocking structure includes a dirt-blocking plate 38. This results in a simple structure that is easy to clean.

[0038] Furthermore, such as Figure 1 , 2 As shown, the dirt-blocking structure also includes a first connecting post 39, with two or more dirt-blocking plates 38 arranged circumferentially on the first connecting post 39. The first connecting post 39 has connecting holes or grooves 40 between at least one set of adjacent dirt-blocking plates 38. This not only simplifies the structure but also blocks dirt, improves the liquid suction effect, and facilitates rinsing and cleaning.

[0039] In some embodiments, such as Figure 1 , 2As shown, the sludge collection tank 30 is also equipped with a first connecting column 39 and a second connecting column 41. The first connecting column 39 and the second connecting column 41 are separately arranged and connected by a connecting pipe 42. The first connecting column 39 is provided with a connecting hole or groove 40, and the second connecting column 41 is connected to one end of the suction channel 31. Liquid enters the suction channel 31 through the connecting hole or groove 40 of the first connecting column 39, the connecting pipe 42, and the second connecting column 41. The specially designed first connecting column 39 and second connecting column 41 facilitate the related structural design. Specifically, the first connecting column 39 can be located at the lowest point of the inner bottom surface of the sludge collection tank 30, which facilitates the suction of more liquid to free up the capacity of the sludge collection tank 30. The second connecting column 41 can be located at one end of the suction channel 31, mainly considering the connection between the first interface 33 and the second interface 34 to connect one end of the suction channel 31 to the sludge collection tank 30. Figure 1 As shown in Figure 2 or 3, the first interface 33 is centered, and the second connecting post 41 is also centered accordingly. Furthermore, the arrangement of the first connecting post 39 and the second connecting post 41 provides a buffer space for the connecting pipe 42, so the liquid in the sludge collection chamber 30 is less likely to leak when not being pumped.

[0040] In addition, specifically, if the first connecting post 39 is directly used as the second connecting post 41, then since the first connecting post 39 is provided with a connecting hole or groove 40, and in this example the connecting hole or groove 40 extends directly upward from the bottom surface of the sludge collection box 30, the liquid will directly soak the sealing ring 36 of the first interface 33 through the connecting hole or groove 40, which poses a risk of leakage. Furthermore, when the sludge collection box 3 is removed, since the first interface 33 and the second interface 34 are separated, the connecting hole or groove 40 directly connects to the outside, which can easily lead to leakage and soiling of the floor brush.

[0041] Furthermore, such as Figure 2 As shown, the inlet 43 of the second connecting column 41 is positioned higher than the bottom surface of the sludge collection tank 30. This makes it less likely for liquid in the sludge collection tank 30 to leak.

[0042] In some embodiments, such as Figure 1 As shown in 2, 3, 4, 6, 7, or 8, this disclosure also employs a sludge-collecting floor brush technology from a prior application of the applicant. This technology can be applied to the floor brush of this disclosure to form another type of sludge-collecting floor brush, namely, one combined with a suction channel 31. This results in a sludge-collecting floor brush that is small in size, lightweight, and has better endurance. This is significant for adapting the sludge-collecting floor brush to larger areas of cleaned surfaces. Furthermore, it improves the cleaning performance of the sludge-collecting floor brush on the cleaned surface, its performance in disposing of waste, and its own cleaning performance.

[0043] The sludge collection box 3 includes a box body 24 and a cover 16 that fits onto the box body 24. The shell 1 has a recess 4 on the rear side of the roller brush cavity. The recess 4 includes a first opening 5 and a second opening 6. The first opening 5 is located on the upper surface of the shell 1. The sludge collection box 3 is detachably installed in the recess 4 in the vertical direction through the first opening 5. The second opening 6 is located on one side of the roller brush cavity and is connected to the front and rear of the roller brush cavity. When the sludge collection box 3 is installed in the recess 4, the dirt inlet of the sludge collection box 3 is connected to the second opening 6. The dirt inlet is connected to the front and rear of the roller brush cavity through the second opening 6. When the roller brush 2 is working, the dirt is transported to the sludge collection chamber 30 of the sludge collection box 3 through the second opening 6 and the dirt inlet. When it is necessary to empty the dirt, the sludge collection box 3 is removed from the recess 4 and the dirt is emptied through the dirt inlet.

[0044] In some embodiments, combined with Figure 3 , 6 As shown in Figures 7 and 10, the sludge collection box 3 is approximately flat on the side with the sludge inlet. Correspondingly, the side with the recess 4 and the second opening 6 is also flat, fitting together with the sludge collection box 3. Preferably, as shown in Figures 7 and 10, the sludge collection box 3 is flat on the side with the sludge inlet. Figure 3 As shown, setting the plane as a vertical plane facilitates the vertical assembly and disassembly of the sludge collection box 3. For example, it could also be an inclined plane. Any surface that allows for assembly and disassembly in the vertical direction is applicable to this disclosure.

[0045] In some embodiments, such as Figure 3 , 6 As shown in Figure 7, the dirt inlet includes a liquid inlet 7 and a solid inlet 8. Both the liquid inlet 7 and the solid inlet 8 extend along the axial direction of the roller brush 2 and are arranged side by side, one above the other.

[0046] like Figure 3 , 6 As shown in Figures 7 and 8, the second opening 6 includes a liquid interface 9 located on the upper side and a solid interface 10 located on the lower side.

[0047] like Figure 6 , 9 As shown, a scraper 11 is provided on one side of the roller brush cavity at the liquid interface 9. The scraper 11 acts on the rotating roller brush 2 to squeeze out the liquid on the roller brush 2. The squeezed liquid is collected into the sludge collection box 3 through the liquid interface 9 and the liquid inlet 7. Note that the squeezed liquid is not pure liquid; it may contain solids. It is also possible that solids on the roller brush 2 are scraped off during the squeezing process and mixed with the liquid, flowing into the sludge collection box 3.

[0048] like Figure 6 , 9As shown, the solid interface 10 has comb teeth 12 on one side of the roller brush cavity. The comb teeth 12 act on the rotating roller brush 2 to scrape off the dirt on the roller brush 2. The scraped dirt is collected into the dirt collection box 3 through the solid interface 10 and the solid inlet 8. Note that the comb teeth 12 can be a plate or something else. Figure 9 The roller brush 2 is composed of multiple triangular teeth arranged sequentially along its axial direction, which allows for better scraping of dirt. During the scraping process, some liquid is also scraped into the collection box 3 due to the pressure applied.

[0049] In some embodiments, such as Figure 6 As shown, the sludge collection box 3's sludge collection chamber 30 includes a first sludge collection chamber 13 and a second sludge collection chamber 14 that are separated from each other. The first sludge collection chamber 13 is used to collect dirt collected from the liquid interface 9 and the liquid inlet 7. A first connecting column (39) and a second connecting column (41) are provided in the first sludge collection chamber 13. The second sludge collection chamber 14 is used to collect dirt collected from the solid interface 10 and the solid inlet 8. This better distinguishes the types of dirt, which is beneficial for cleaning the roller brush 2, while also performing solid-liquid separation and collection.

[0050] Furthermore, such as Figure 6 As shown, the second dirt collection chamber 14 is located behind the solid interface 10 and has a solid inlet 8. When the dirt collection box 3 is removed from the recess 4, the solid inlet 8 can be exposed for emptying dirt. The first dirt collection chamber 13 is located behind the second dirt collection chamber 14, and a connecting channel 15 is provided on the upper side of the second dirt collection chamber 14. The front end of the connecting channel 15 serves as a liquid inlet 7 to connect to the rear end of the liquid interface 9, and the rear end of the connecting channel 15 is connected to the first dirt collection chamber 13. In this way, on the one hand, the front and rear positions of the first dirt collection chamber 13 and the second dirt collection chamber 14 and the arrangement of the connecting channel 15 help to reduce the height of the dirt collection box 3, thereby helping to reduce the height of the entire floor brush. On the other hand, the second dirt collection chamber 14 is closer to the side of the roller brush cavity, which is also closer to the side of the roller brush 2, thus helping to shorten the front and rear length of the solid interface 10. The dirt scraped off by the comb teeth 12 can directly reach the second dirt collection chamber 14, which is more efficient. This makes the present invention capable of collecting a large amount of solid dirt in a short time, improving the cleaning ability of the surface being cleaned.

[0051] In some embodiments, such as Figure 6 As shown, in order to collect solid dirt more quickly, both the solid interface 10 and the solid inlet 8 are set to be relatively large, and the relatively large solid inlet 8 is also conducive to emptying dirt.

[0052] In some embodiments, such as Figure 6 As shown, the connecting channel 15 is designed with a high front and low rear guide, which can better collect liquid dirt and help reduce backflow.

[0053] In some embodiments, such as Figure 6 As shown, the height of the highest liquid level that the first sludge collection tank 13 can hold is set below the height of the front side of the connecting channel 15, and / or the height of the highest liquid level that the first sludge collection tank 13 can hold is set below the height of the lower edge 19 of the front side of the liquid interface 9. This allows for better collection of liquid contaminants and helps reduce backflow.

[0054] In some embodiments, such as Figure 6 As shown, when the sludge collection box 3 is installed in the recess 4, the lower edge of the front end of the connecting channel 15 is lower than the lower edge of the rear end of the liquid interface 9. This difference in height forms a step 22, thus ensuring that when the sludge collection box 3 is installed in the recess 4, the lower edge of the front end of the connecting channel 15 is lower than the lower edge of the rear end of the liquid interface 9, which is beneficial for guiding the flow.

[0055] In some embodiments, the sludge collection box 3 further includes an openable cover 16 and an upper opening 17, which is also the upper opening 17 of the sludge collection chamber 30. When the cover 16 and the upper opening 17 are detachably connected, the sludge collection chamber 30 is located below the cover 16. When the cover 16 is opened, the sludge collection chamber 30 is in an upward-opening state to facilitate emptying the dirt and cleaning. Since the upper opening 17 is in an upward-opening state, it is convenient to empty the dirt and rinse it under the tap. The aforementioned solution is of great significance to the type of sludge collection floor brush involved in this disclosure, that is, this type of sludge collection floor brush needs to be cleaned in a cleaning cycle, so improving cleaning convenience and efficiency becomes crucial.

[0056] Preferred, such as Figure 6 , 7 As shown in Figure 8, in the case where the first sludge collection chamber 13 is located behind the second sludge collection chamber 14 and a connecting channel 15 is provided on the upper side of the second sludge collection chamber 14, the sludge collection box 3 also includes an openable cover 16 and an upper opening 17. The upper opening 17 is also the upper opening 17 of the first sludge collection chamber 13. When the cover 16 and the upper opening 17 are detachably connected, the first sludge collection chamber 13 is located under the cover 16. A front-to-back connecting gap is formed between the cover 16 and the front bottom surface 18 of the first sludge collection chamber 13. This front-to-back connecting gap serves as the connecting channel 15. When the cover 16 is opened, the first sludge collection chamber 13 is in an upward-opening state to facilitate emptying the dirt and cleaning. With this design, the structure is optimized to distinguish the types of dirt. On the other hand, opening the cover 16 allows the connecting channel 15 and the first dirt collection tank 13 to be fully open upwards, which makes it convenient to empty the dirt. Furthermore, since impurities in liquid dirt may accumulate on the surface of the connecting channel 15 and the first dirt collection tank 13, the aforementioned solution makes it easy to rinse the connecting channel 15 and the first dirt collection tank 13, improving cleaning convenience and efficiency.

[0057] Furthermore, for the sake of a compact structure, the second waste collection chamber 14 is located on the lower side of the front bottom surface 18.

[0058] In some embodiments, for the sake of a compact structure, such as Figure 6 As shown, the upper side of the comb teeth 12 serves as the bottom surface of the liquid interface 9, and the front top edge of the upper side of the comb teeth 12 serves as the front lower edge 19 of the liquid interface 9.

[0059] In some embodiments, to improve storage capacity and prevent dirt from returning to the brush chamber, such as Figure 6 As shown, the lower edge 21 of the solid inlet 8 is raised above the inner bottom surface 20 of the second sludge collection chamber 14 to form a baffle 29.

[0060] Furthermore, such as Figure 6 As shown, the lower bottom surface 23 of the solid interface 10 is set higher than the lower edge 21 of the solid inlet 8, which helps to prevent dirt from returning from the solid interface 10 to the brush chamber during the dirt collection process.

[0061] In some embodiments, such as Figure 6 , 10 As shown, the liquid interface 9 is provided with a first sealing strip 25 on the side of the liquid inlet 7. In this example, it is provided on the lower rear end of the liquid interface 9. When the sludge collection box 3 is installed in the recess 4, the first sealing strip 25 is sealed and fitted with the side of the liquid inlet 7. This helps to reduce the risk of leakage at the junction of the liquid interface 9 and the liquid inlet 7, thereby facilitating the collection of liquid dirt.

[0062] Of course, a second sealing strip can also be provided on the solid inlet 8 side of the solid interface 10. When the sludge collection box 3 is installed in the recess 4, the second sealing strip is sealed and matched with the solid inlet 8 side, which helps to prevent solid dirt from falling into the recess 4.

[0063] In some embodiments, such as Figure 6 , 10 As shown in Figure 11, a bottom shell 26 is provided at the bottom of the recess 4, extending towards the solid interface 10 and further into the brush cavity. The portion of the bottom shell 26 located in the brush cavity serves as an extension fitting portion 28, which is rotatably fitted with the brush 2. The bottom shell 26 is arched at the solid interface 10, which serves as the lower bottom surface 23 of the solid interface 10. In this way, the bottom shell 26 forms a better collection channel, allowing the dirt scraped off by the comb teeth 12 to be promptly guided into the second dirt collection bin 14 when the brush 2 rotates. The arched shape, as the lower bottom surface 23 of the solid interface 10, also acts as a barrier, thus helping to prevent dirt from returning from the solid interface 10 to the brush cavity during the collection process.

[0064] In particular, since the bottom of the recess 4 is provided with a bottom shell 26 extending towards the solid interface 10 and further into the brush cavity, the bottom shell 26 serves as the bottom of the recess 4 on the one hand, and on the other hand, provides the bottom surface 23 of the solid interface 10. Therefore, the structure is more compact and it is also beneficial to reduce the height of the entire dirt collection brush, which is important.

[0065] Furthermore, the bottom shell 26 provides a mating surface 27 as a second sealing strip. When the sludge collection box 3 is inserted into the recess 4, the mating surface 27 fits snugly against the solid inlet 8. This structure is simple, and the snug fit provides a certain degree of sealing, which helps to prevent solid dirt from falling into the recess 4.

[0066] This disclosure also proposes a surface cleaning device, including a floor brush and a handle, the handle having an expansion section 32, the floor brush being the aforementioned floor brush, and the expansion section 32 being connected to the floor brush via a suction channel 31.

[0067] A pump can be installed in a section of the suction channel 31 or in the expansion section 32 to provide suction force, so a pump may not be needed on the floor brush.

[0068] When understanding this disclosure, the above structure may be referred to other embodiments / appendices if necessary. Figure 1 And that is understood, so I will not elaborate further here.

[0069] The above description is merely an illustrative embodiment of this utility model. Therefore, all equivalent changes or modifications made to the structure, features, and principles described in the scope of protection of this utility model are included within the scope of protection of this utility model.

Claims

1. A floor brush with an expandable sludge collection chamber, comprising a housing (1) and a sludge collection chamber (30) installed therein, the sludge collection chamber (30) being used to collect dirt, characterized in that, It also includes a suction channel (31), one end of which is connected to the sludge collection tank (30), and the other end of which is connected to the expansion section (32). The expansion section (32) is located outside the floor brush. When the expansion section (32) is connected, it is used to store the liquid transported through the suction channel (31), thereby freeing up the capacity of the sludge collection tank (30).

2. The floor brush with an expandable sludge collection bin as described in claim 1, characterized in that, The housing (1) has a detachable sludge collection box (3), which is equipped with a sludge collection chamber (30). The sludge collection box (3) can be removed to empty the sludge in the sludge collection chamber (30) separately.

3. The floor brush with an expandable sludge collection bin as described in claim 2, characterized in that, The housing (1) has a recess (4) with an upper insertion port, and the sludge collection box (3) is detachably installed in the recess (4) in the vertical direction.

4. The floor brush with an expandable sludge collection bin as described in claim 3, characterized in that, The housing (1) is provided with a roller brush cavity, and a roller brush (2) is provided in the roller brush cavity. The housing (1) is provided with a recess (4) on the rear side of the roller brush cavity. The recess (4) includes a first opening (5) and a second opening (6). The first opening (5) is located on the upper surface of the housing (1). The sludge collection box (3) is detachably installed in the recess (4) in the vertical direction through the first opening (5). The second opening (6) is located on one side of the roller brush cavity and is connected to the front and rear of the roller brush cavity. When the sludge collection box (3) is installed in the recess (4), the sludge inlet of the sludge collection box (3) is connected to the second opening (6). The sludge inlet is connected to the front and rear of the roller brush cavity through the second opening (6). When the roller brush (2) is working, the sludge is transported to the sludge collection chamber (30) of the sludge collection box (3) through the second opening (6) and the sludge inlet. When it is necessary to empty the sludge, the sludge collection box (3) is removed from the recess (4) and the sludge is poured out through the sludge inlet.

5. The floor brush with an expandable sludge collection bin as described in claim 4, characterized in that, The dirt inlet includes a liquid inlet (7) and a solid inlet (8). Both the liquid inlet (7) and the solid inlet (8) extend along the axial direction of the roller brush (2) and are arranged side by side, one above the other. The second opening (6) includes a liquid interface (9) located on the upper side and a solid interface (10) located on the lower side. The liquid interface (9) is provided with a scraper (11) on one side of the roller brush cavity. The scraper (11) acts on the rotating roller brush (2) to squeeze out the liquid on the roller brush (2). The squeezed liquid is collected into the sludge collection box (3) through the liquid interface (9) and the liquid inlet (7). The solid interface (10) has comb teeth (12) on one side of the roller brush cavity. The comb teeth (12) act on the rotating roller brush (2) to scrape off the dirt on the roller brush (2). The scraped dirt is collected into the dirt collection box (3) through the solid interface (10) and the solid inlet (8).

6. The floor brush with an expandable sludge collection bin as described in claim 5, characterized in that, The sludge collection box (3) includes a first sludge collection chamber (13) and a second sludge collection chamber (14) that are separate from each other. The first sludge collection chamber (13) is used to collect dirt collected by the liquid interface (9) and the liquid inlet (7). The first sludge collection chamber (13) also serves as a sludge collection chamber (30). The second sludge collection chamber (14) is used to collect dirt collected by the solid interface (10) and the solid inlet (8).

7. The floor brush with an expandable sludge collection bin as described in claim 6, characterized in that, The second sludge collection chamber (14) is located behind the solid interface (10) and is provided with a solid inlet (8). When the sludge collection box (3) is removed from the recess (4), the solid inlet (8) can be exposed for emptying sludge. The first sludge collection chamber (13) is located behind the second sludge collection chamber (14) and a connecting channel (15) is provided on the upper side of the second sludge collection chamber (14). The front end of the connecting channel (15) serves as a liquid inlet (7) to connect to the rear end of the liquid interface (9). The rear end of the connecting channel (15) is connected to the first sludge collection chamber (13).

8. The floor brush with an expandable sludge collection bin as described in claim 7, characterized in that, The sludge collection box (3) also includes an openable cover (16) and an upper opening (17), which is also the upper opening (17) of the first sludge collection chamber (13). When the cover (16) and the upper opening (17) are detachably connected, the first sludge collection chamber (13) is located under the cover (16). When the cover (16) is opened, the first sludge collection chamber (13) is in an upward-opening state to facilitate emptying the dirt and cleaning.

9. The floor brush with an expandable sludge collection bin as described in claim 8, characterized in that, In the case where the first waste collection chamber (13) is located behind the second waste collection chamber (14) and a connecting channel (15) is provided on the upper side of the second waste collection chamber (14), a front-to-back connecting gap is formed between the cover (16) and the front bottom surface (18) of the first waste collection chamber (13), and this front-to-back connecting gap serves as the connecting channel (15).

10. The floor brush with an expandable sludge collection bin as described in claim 3, characterized in that, The bottom of the recess (4) is provided with a first interface (33), which serves as one end of the suction channel (31). The sludge collection box (3) is provided with a second interface (34) that cooperates with the first interface (33). When the sludge collection box (3) is installed in the recess (4) in the vertical direction, the first interface (33) and the second interface (34) are connected so that one end of the suction channel (31) is connected to the sludge collection chamber (30).

11. The floor brush with an expandable sludge collection bin as described in claim 10, characterized in that, The first interface (33) includes a protrusion (35) and a sealing ring (36), and the second interface (34) includes a insertion hole (37) provided at the bottom of the sludge collection box (3). The insertion hole (37) causes the inner bottom of the sludge collection box (3) to bulge upwards to be higher than the surface of the inner bottom of the sludge collection box (3). When the sludge collection box (3) is installed in the recess (4) in the vertical direction, the protrusion (35) carrying the sealing ring (36) is inserted and fitted into the insertion hole (37).

12. The floor brush with an expandable sludge collection bin as described in any one of claims 1 to 11, characterized in that, The sludge collection chamber (30) is also equipped with a sludge-blocking structure, which prevents solid dirt from being drawn into the expansion section (32) through the suction channel (31).

13. The floor brush with an expandable sludge collection bin as described in claim 12, characterized in that, The dirt-blocking structure includes a dirt-blocking plate (38).

14. The floor brush with an expandable sludge collection bin as described in claim 13, characterized in that, The dirt-blocking structure also includes a first connecting column (39), which has two or more dirt-blocking plates (38) arranged circumferentially, and the first connecting column (39) has a connecting hole or groove (40) between at least one set of adjacent dirt-blocking plates (38).

15. The floor brush with an expandable sludge collection bin as described in any one of claims 1 to 11, characterized in that, The sludge collection tank (30) is also provided with a first connecting column (39) and a second connecting column (41). The first connecting column (39) and the second connecting column (41) are set separately and connected by a connecting pipe (42). The first connecting column (39) is provided with a connecting hole or groove (40). The second connecting column (41) is connected to one end of the suction channel (31). The liquid enters the suction channel (31) through the connecting hole or groove (40) of the first connecting column (39), the connecting pipe (42), and the second connecting column (41).

16. The floor brush with an expandable sludge collection bin as described in claim 15, characterized in that, The first connecting post (39) is provided with two or more baffles (38) in the circumferential direction, and the first connecting post (39) is provided with a connecting hole or groove (40) between at least one set of adjacent baffles (38).

17. The floor brush with an expandable sludge collection bin as described in claim 15, characterized in that, The inlet (43) of the second connecting column (41) is set higher than the bottom surface of the sludge collection bin (30).

18. A surface cleaning device, comprising a floor brush and a handle, characterized in that, The handle is provided with an expansion section (32), and the floor brush is the floor brush described in any one of claims 1 to 17. The expansion section (32) is connected to the floor brush through a suction channel (31).

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