Floor brush assembly

Abstract

The utility model belongs to the technical field of cleaning equipment, and discloses a floor brush assembly which comprises a base, a water tank and a first suction pump, the water tank and the first suction pump are arranged on the base, the water tank comprises a water tank body, a liquid suction pipe and a first suction pipe, and a sewage cavity and a sewage inlet are formed in the water tank body; the liquid pumping pipe and the first air pumping pipe are arranged in the sewage cavity; the liquid pumping pipe is communicated with the sewage inlet and the sewage cavity; the first exhaust pipe is communicated with the first suction pump and the sewage cavity. When the floor brush assembly is used for the floor washing machine, the gravity center of the floor washing machine is low, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a floor brush assembly. Background Technology

[0002] A floor scrubber, also known as a floor cleaning machine or floor scrubbing and drying machine, is a cleaning machine that cleans hard floors while simultaneously sucking up wastewater and removing it from the site. In existing technology, a floor scrubber includes a body, a roller brush, and a base. The base is located at the bottom of the body and is used to hold the roller brush. The body includes the main body, a brush assembly, and a suction assembly. Both the brush assembly and the suction assembly are located on the main body, which results in a relatively high center of gravity for the floor scrubber, making it more difficult for users to operate when mopping. Utility Model Content

[0003] The purpose of this invention is to provide a floor brush assembly to solve the problem of high center of gravity and difficult operation of floor scrubbers.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a floor brush assembly, including a base, a water tank, and a first suction pump. The water tank and the first suction pump are both mounted on the base, and a roller brush is also mounted on the base. The water tank includes a water tank body, a liquid extraction pipe, and a first air extraction pipe. The water tank body has a sewage chamber and a sewage inlet. The liquid extraction pipe and the first air extraction pipe are both located in the sewage chamber. The liquid extraction pipe connects the sewage inlet and the sewage chamber. The first air extraction pipe connects the first suction pump and the sewage chamber.

[0006] Optionally, the water tank further includes a second suction pipe, which is disposed on the water tank body and / or the base, and the second suction pipe connects the first suction pump and the first suction pipe.

[0007] Optionally, the bottom of the water tank body is provided with a receiving groove, and the second air extraction pipe is at least partially located in the receiving groove.

[0008] Optionally, the bottom wall of the water tank body protrudes upward to form a first protrusion, and the first suction pump is located below the first protrusion.

[0009] Optionally, the water tank body is further provided with a clear water chamber and a clearance groove for avoiding the bearing seat on the base. The clear water chamber and the sewage chamber are spaced apart. The water tank body is also provided with a water outlet that communicates with the clear water chamber. The water outlet communicates with a second suction pump located in the clearance groove.

[0010] Optionally, the water tank further includes a filter element for preventing solids from entering the wastewater chamber.

[0011] Optionally, the water tank body is further provided with a filter chamber that connects the sewage inlet and the sewage chamber. The filter element is located inside the filter chamber. The filter element includes a filter part and a support part. The filter part covers the sewage inlet and is provided with a plurality of filter holes. The support part is provided at the bottom of the filter part so that there is a gap between the filter part and the bottom wall of the filter chamber.

[0012] Optionally, the water tank further includes a first gas-liquid separator disposed at the inlet end of the first suction pipe. The first gas-liquid separator includes a motor and an impeller. The motor is disposed inside the first suction pipe, and the impeller is located outside the first suction pipe and connected to the motor.

[0013] Optionally, the first gas-liquid separator further includes a retaining ring, which is sleeved on the inlet end of the first suction pipe, and the retaining ring includes a blocking portion located inside the impeller and arranged in an annular shape.

[0014] Optionally, the water tank further includes a second gas-liquid separator, which includes an inner ring, an outer ring, and a flow guide. The inner ring is fixed to the outlet end of the liquid extraction pipe and communicates with the liquid extraction pipe. The outer ring is sleeved outside the inner ring. The flow guide blocks the annular gap formed between the inner ring and the inner ring, and the flow guide is configured as a spiral around the inner ring. The lower end of the flow guide has an outlet that communicates with the inner ring.

[0015] The beneficial effects of this utility model are as follows: The floor brush assembly provided by this utility model sets both the water tank and the first suction pump on the base, which, compared to setting them on the body of the floor scrubber, lowers the center of gravity of the floor scrubber and improves the ease of operation of the floor scrubber. Attached Figure Description

[0016] Figure 1 This is a partial structural diagram of the floor brush assembly in an embodiment of this utility model. Figure 1 ;

[0017] Figure 2 This is a partial structural diagram of the floor brush assembly in an embodiment of this utility model. Figure 2 ;

[0018] Figure 3 This is a partial structural diagram of the floor brush assembly in an embodiment of this utility model. Figure 3 (Hidden cover);

[0019] Figure 4 yes Figure 3 A cross-sectional view along the AA direction;

[0020] Figure 5 yes Figure 4Enlarged view of point D in the middle;

[0021] Figure 6 yes Figure 3 A sectional view along the BB direction;

[0022] Figure 7 yes Figure 3 A cross-sectional view along the CC direction;

[0023] Figure 8 This is a schematic diagram of the internal structure of the water tank body in an embodiment of this utility model;

[0024] Figure 9 This is a schematic diagram of the bottom structure of the water tank body in an embodiment of this utility model;

[0025] Figure 10 This is a schematic diagram of the base structure in an embodiment of this utility model;

[0026] Figure 11 This is a schematic diagram of the internal structure of the base in an embodiment of this utility model.

[0027] In the picture:

[0028] 10. Water tank; 11. Water tank body; 111. Cover; 1111. Cover body; 1112. Sewage chamber cover; 112. Tank body; 1121. First protrusion; 113. Sewage chamber; 114. Filter chamber; 115. Clear groove; 116. Clean water chamber; 117. Outlet; 118. Receptacle; 119. Sewage inlet; 12. Liquid extraction pipe; 13. First air extraction pipe; 14. Second air extraction pipe; 141. Upper tube plate; 142. Lower tube plate; 15. First gas-liquid separator; 151. Impeller; 152. Motor; 153. Retaining ring; 1531. Fixing part; 1532. Blocking part; 16. Filter element; 161. Filter part; 162. Support part; 17. Second gas-liquid separator; 171. Inner ring part; 172. Outer ring part; 173. Flow guide part;

[0029] 20. Roller brush;

[0030] 30. First suction pump;

[0031] 40. Second suction pump;

[0032] 50. Water spray components;

[0033] 60. Scraper;

[0034] 70. Base; 71. Top plate; 711. First through hole; 712. Second through hole; 713. Shaft seat; 714. Second protrusion; 715. Third protrusion; 72. Bottom plate; 721. Inspection door. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] refer to Figures 1-11As shown in the figure, an embodiment of this utility model proposes a floor brush assembly for a floor scrubber. The floor scrubber includes a body (not shown in the figure) and the aforementioned floor brush assembly. The floor brush assembly includes a base 70, a roller brush 20, a water tank 10, and a first suction pump 30. A bearing seat 713 is provided on the base 70, and the base 70 is pivotally connected to the bottom of the body via a pin passing through the bearing seat 713. Rollers are provided at the bottom of the base 70 to reduce the friction between the base 70 and the ground, thus reducing the difficulty of moving the base 70. The roller brush 20 is rotatably mounted on the base 70. The water tank 10 is integrated on the base 70. The water tank 10 includes a water tank body 11. The water tank body 11 is provided with a sewage chamber 113 and a sewage inlet 119. The sewage inlet 119 is positioned facing the roller brush 20. The sewage chamber 113 is provided with a liquid extraction pipe 12 and a first air extraction pipe 13. The liquid extraction pipe 12 connects the sewage inlet 119 and the sewage chamber 113. The first suction pump 30 is connected to the sewage chamber 113 through the first air extraction pipe 13 and is used to draw sewage into the sewage chamber 113 through the sewage inlet 119 and the liquid extraction pipe 12.

[0040] The aforementioned floor brush assembly integrates the water tank 10 onto the base 70, which, compared to placing it on the machine body, reduces the center of gravity of the floor scrubber to a certain extent.

[0041] In one embodiment, the bottom wall of the water tank body 11 protrudes upward to form a first protrusion 1121, that is, the height of different positions of the bottom wall of the water tank body 11 is different. The first suction pump 30 is located below the first protrusion 1121 to reduce the space occupied by the first suction pump 30 in the height direction, and further reduce the center of gravity height of the floor brush assembly.

[0042] Furthermore, the water tank 10 also includes a second suction pipe 14 disposed below the water tank body 11 or within the base 70. The second suction pipe 14 connects the first suction pipe 13 and the first suction pump 30 to extend the distance between the inlet of the first suction pump 30 and the first suction pipe 13, thereby reducing the possibility of water vapor entering the first suction pump 30. Specifically, the first suction pipe 13 and the second suction pipe 14 are arranged at an angle to reduce the space occupied by the second suction pipe 14 in the height direction. Exemplarily, the second suction pipe 14 is arranged parallel to the plane of the base 70.

[0043] When the floor brush assembly is working, the first suction pump 30 starts, and the gas in the sewage chamber 113 enters the first suction pump 30 through the first suction pipe 13 and the second suction pipe 14, thus creating a negative pressure environment in the sewage chamber 113. Under the action of negative pressure, sewage enters the liquid extraction pipe 12 from the sewage inlet 119 and then enters the sewage chamber 113, achieving the function of sewage collection. Moreover, since the first suction pump 30 is not directly connected to the liquid extraction pipe 12, sewage is less likely to enter the first suction pump 30, ensuring the normal operation of the first suction pump 30.

[0044] Understandably, the water level in the sewage chamber 113 should be lower than the height of the suction pipe 12 and the first suction pipe 13 to prevent sewage from flowing back into the suction pipe 12 or into the first suction pump 30. Based on this, both the suction pipe 12 and the first suction pipe 13 are set perpendicular to the plane of the base 70. At this time, the allowable water level threshold in the sewage chamber 113 is the highest.

[0045] refer to Figure 9 As shown, in one embodiment, the bottom of the water tank body 11 is provided with a receiving groove 118, and the second air extraction pipe 14 is at least partially located in the receiving groove 118 to reduce the space occupied by the second air extraction pipe 14 in the height direction, and further lower the center of gravity of the floor brush assembly.

[0046] In one embodiment, the water tank body 11 includes a cover 111 and a tank body 112, with a sewage chamber 113 formed in the tank body 112. Specifically, refer to... Figure 4 , Figure 8 and Figure 9 As shown, the opening of the sewage chamber 113 faces upward, and the cover 111 can be opened and closed to cover the tank body 112 to seal the opening of the sewage chamber 113. At the same time, the bottom wall of the tank body 112 protrudes upward to form a first protrusion 1121. Specifically, the water tank body 11 is detachably connected to the base 70 by means of bolts or snap-fit ​​connections, which facilitates the emptying of sewage accumulated in the water tank body 11 and allows for regular cleaning of the sewage chamber 113.

[0047] refer to Figure 4 and Figure 11 As shown, based on the premise that the water tank body 11 and the base 70 are detachably connected, in order to improve the aesthetics of the base 70 when the water tank body 11 is removed from the base 70, the first suction pump 30 and the second suction pipe 14 are both disposed within the base 70. Specifically, the base 70 protrudes upwards at the position corresponding to the first protrusion 1121 to form a second protrusion 714, and the first suction pump 30 is located within the second protrusion 714. The base 70 also protrudes upwards at the position corresponding to the second suction pipe 14 to form a third protrusion 715, which is embedded in the receiving groove 118, while the second suction pipe 14 is located within the third protrusion 715. Simultaneously, the base 70 also has a first through hole 711 connecting to the first suction pipe 13 at the position corresponding to the first suction pipe 13.

[0048] Specifically, the base 70 includes an upper top plate 71 and a lower bottom plate 72, which together form the inner cavity of the base 70. The roller brush 20 is disposed on the lower bottom plate 72. The second suction pipe 14 includes an upper tube 141 and a lower tube 142. The upper tube 141 has a first connecting port that connects to the first suction pump 30 and a second connecting port that connects to the first suction pipe 13. The upper tube 141 and the lower tube 142 together form the second suction pipe 14. To facilitate the later maintenance and cleaning of the second suction pipe 14, the upper tube 141 and the lower tube 142 are detachably connected. More specifically, the upper tube segment 141 is fixed to the lower base plate 72 by means including but not limited to injection molding. The lower base plate 72 has a notch corresponding to the position of the lower tube segment 142. The lower tube segment 142 is bolted to the upper tube segment 141. The lower tube segment 142, together with the upper tube segment 141, forms the second exhaust pipe 14 and also seals the notch. That is, when the second exhaust pipe 14 is inspected or cleaned, it is not necessary to remove the lower base plate 72; only the lower tube segment 142 needs to be removed.

[0049] refer to Figure 3 and Figure 8 As shown, in one embodiment, the water tank body 11 is further provided with a clean water chamber 116, and a partition plate is provided inside the tank body 112 to divide the inner cavity of the tank body 112 into a sewage chamber 113 and a clean water chamber 116. The floor brush assembly also includes a second suction pump 40 and a water spray component 50. The water tank body 11 is also provided with a water outlet 117 that connects the clean water chamber 116 and the second suction pump 40. The water spray component 50 is provided on the base 70 and connected to the outlet end of the second suction pump 40. The water spray component 50 has a water outlet hole facing the roller brush 20. Specifically, the first protrusion 1121 is provided in the clean water chamber 116.

[0050] Meanwhile, in order to spray water evenly onto the roller brush 20, the water spraying element 50 has multiple water outlet holes arranged in an array along the axial direction of the roller brush 20.

[0051] It is worth emphasizing that, in order to achieve a smooth connection between the base 70 and the body, the water tank body 11 is provided with a recessed relief groove 115 on the side away from the roller brush 20, the shaft seat 713 is located in the relief groove 115, and the second suction pump 40 is located in the relief groove 115 to avoid occupying extra space.

[0052] More specifically, the second suction pump 40 is also installed in the base 70. The base 70 has a fourth protrusion at the location corresponding to the relief groove 115. The second suction pump 40 is installed near the second suction pipe 14 and connected to the outlet 117 through the pipe. The lower base plate 72 has an inspection port at the location corresponding to the second suction pump 40. The inspection port is connected to the notch. An inspection door 721 is detachably installed at the inspection port. The inspection door 721 is integrally formed with the lower pipe 142. At the same time, the base 70 also has a second through hole 712 at the location corresponding to the outlet 117. The aforementioned pipe is connected to the second through hole 712.

[0053] Based on the design of the clean water chamber 116, the cover 111 includes a cover body 1111 and a wastewater chamber cover 1112. The cover body 1111 closes onto the top opening of the housing 112. The portion of the cover body 1111 corresponding to the wastewater chamber 113 has an installation port. The wastewater chamber cover 1112 is detachably mounted at the installation port of the cover body 1111. It is understood that the cleaning frequency of the wastewater chamber 113 is much higher than that of the clean water chamber 116. By separating the cover 111 into two parts, when cleaning the wastewater chamber 113, only the wastewater chamber cover 1112 needs to be opened, without having to open the entire cover 111, making operation more convenient. Specifically, the cover body 1111 also has a water inlet communicating with the clean water chamber 116 for replenishing water into the clean water chamber 116.

[0054] refer to Figure 6 and Figure 7 As shown, in one embodiment, the water tank 10 further includes a filter element 16 to prevent solids from entering the sewage chamber 113. Specifically, a filter chamber 114 is also formed on the water tank body 11, which is connected to the sewage inlet 119 and the suction pipe 12. Specifically, the filter element 16 includes a filter section 161 and a support section 162, wherein the filter section 161 is configured as a hollow structure, the filter section 161 covers the sewage inlet 119 and is provided with a plurality of filter holes, and the support section 162 is disposed at the bottom of the filter section 161 so that there is a gap between the filter section 161 and the bottom wall of the filter chamber 114, thereby increasing the speed at which the sewage filtered by the filter section 161 flows from the filter section 161 to the filter chamber 114 and then to the suction pipe 12.

[0055] Meanwhile, reference Figure 4 and Figure 5 As shown, to prevent sewage from entering the first suction pipe 13, the water tank 10 also includes a first gas-liquid separator 15 connecting the first suction pipe 13 and the sewage chamber 113. The first gas-liquid separator 15 is located at the inlet end of the first suction pipe 13 and can be any feasible gas-liquid separation device in the prior art. Alternatively, the first gas-liquid separator 15 includes a motor 152 and an impeller 151. The motor 152 is located inside the first suction pipe 13, thus avoiding additional height space occupation. The output shaft of the motor 152 is arranged upwards, and the impeller 151 is located outside the first suction pipe 13 and connected to the output shaft of the motor 152 so that it rotates under the action of the motor 152. The centrifugal force generated by the impeller 151 can throw the liquid away from the first suction pipe 13, thereby reducing the probability of liquid entering the first suction pipe 13. Specifically, the motor 152 is bolted to the first exhaust pipe 13 to facilitate the removal of the motor 152 and the impeller 151 connected to the motor 152 from the first exhaust pipe 13, thereby allowing for the inspection and cleaning of the motor 152 and the impeller 151.

[0056] Furthermore, the first gas-liquid separator 15 also includes a retaining ring 153. The retaining ring 153 includes a fixing part 1531 and a blocking part 1532 connected axially. Both the fixing part 1531 and the blocking part 1532 are annular, and the outer diameter of the fixing part 1531 is larger than the outer diameter of the blocking part 1532. A connecting step is formed between the fixing part 1531 and the blocking part 1532. The fixing part 1531 is sleeved on the inlet end of the first suction pipe 13, and the blocking part 1532 is located inside the impeller 151 to block sewage from entering through the gap between adjacent blades of the impeller 151.

[0057] refer to Figure 8 As shown, the water tank 10 also includes a second gas-liquid separator 17, which includes an inner ring 171, an outer ring 172, and a guide section 173. The inner ring 171 is detachably fixed to the outlet end of the suction pipe 12 and communicates with it. The outer ring 172 is sleeved around the inner ring 171 and connected to it through the guide section 173. The guide section 173 blocks the annular gap formed between the inner ring 171 and the outer ring 172, and is configured as a spiral around the inner ring 171. The lower end of the guide section 173 has an outlet that communicates with the inner ring 171. Under the action of the guide section 173, the gas in the sewage sucked up by the first suction pump 30 rises rapidly, while the water rises relatively slowly, thus achieving gas-liquid separation. Specifically, the inner ring 171 is partially enclosed above the outlet to prevent sewage from entering the sewage chamber 113 without gas-liquid separation by the guide section 173.

[0058] refer to Figure 7 As shown, in order to improve the efficiency of sewage collection, the floor brush assembly also includes a scraper 60. A collection chamber is provided on the side of the base 70 facing the roller brush 20. The collection chamber is connected to the suction pipe 12 through the sewage inlet 119. The scraper 60 is fixedly connected to the side of the lower base plate 72 facing the roller brush 20 and is used to scrape the wastewater on the roller brush 20 into the collection chamber.

[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A floor brush assembly, characterized in that, include: A base (70) on which a roller brush (20) is provided; A water tank (10) is mounted on the base (70). The water tank (10) includes a water tank body (11), a liquid extraction pipe (12), and a first air extraction pipe (13). The water tank body (11) has a sewage chamber (113) and a sewage inlet (119). The liquid extraction pipe (12) and the first air extraction pipe (13) are both located in the sewage chamber (113). The liquid extraction pipe (12) connects the sewage inlet (119) and the sewage chamber (113). A first suction pump (30) is mounted on the base (70) and connected to the sewage chamber (113) via the first suction pipe (13).

2. The floor brush assembly according to claim 1, characterized in that, The water tank (10) also includes a second suction pipe (14), which is disposed in the base (70) and / or on the water tank body (11). The second suction pipe (14) connects the first suction pipe (13) and the first suction pump (30).

3. The floor brush assembly according to claim 2, characterized in that, The bottom of the water tank body (11) is provided with a receiving groove (118), and the second air extraction pipe (14) is at least partially located in the receiving groove (118).

4. The floor brush assembly according to claim 1, characterized in that, The bottom wall of the water tank body (11) protrudes upward to form a first protrusion (1121), and the first suction pump (30) is located below the first protrusion (1121).

5. The floor brush assembly according to claim 1, characterized in that, The water tank body (11) is also provided with a clear water chamber (116) and a clearance groove (115) for avoiding the bearing seat (713) on the base (70). The clear water chamber (116) and the sewage chamber (113) are spaced apart. The water tank body (11) is also provided with an outlet (117) that communicates with the clear water chamber (116). The outlet (117) communicates with the second suction pump (40) located in the clearance groove (115).

6. The floor brush assembly according to any one of claims 1-5, characterized in that, The water tank (10) also includes a filter (16) for preventing solids from entering the sewage chamber (113).

7. The floor brush assembly according to claim 6, characterized in that, The water tank body (11) is also provided with a filter chamber (114) that connects the sewage inlet (119) and the sewage chamber (113). The filter element (16) is located in the filter chamber (114). The filter element (16) includes a filter part (161) and a support part (162). The filter part (161) covers the sewage inlet (119). The filter part (161) is provided with a plurality of filter holes. The support part (162) is provided at the bottom of the filter part (161) so that there is a gap between the filter part (161) and the bottom wall of the filter chamber (114).

8. The floor brush assembly according to any one of claims 1-5, characterized in that, The water tank (10) also includes a first gas-liquid separator (15) disposed at the inlet end of the first exhaust pipe (13). The first gas-liquid separator (15) includes a motor (152) and an impeller (151). The motor (152) is disposed inside the first exhaust pipe (13), and the impeller (151) is located outside the first exhaust pipe (13) and connected to the motor (152).

9. The floor brush assembly according to claim 8, characterized in that, The first gas-liquid separator (15) further includes a retaining ring (153), which is sleeved on the inlet end of the first suction pipe (13). The retaining ring (153) includes a blocking part (1521) located inside the impeller (151) and arranged in an annular shape.

10. The floor brush assembly according to any one of claims 1-5, characterized in that, The water tank (10) also includes a second gas-liquid separator (17), which includes an inner ring (171), an outer ring (172), and a guide (173). The inner ring (171) is fixed to the outlet end of the liquid extraction pipe (12) and communicates with the liquid extraction pipe (12). The outer ring (172) is sleeved outside the inner ring (171). The guide (173) blocks the annular gap formed between the inner ring (171) and the inner ring (171), and the guide (173) is configured as a spiral around the inner ring (171). The lower end of the guide (173) is provided with an outlet that communicates with the inner ring (171).

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