A floor cleaning machine

Abstract

The present application relates to the technical field of cleaning equipment, in particular to a floor washing machine, which is sequentially connected from top to bottom with a handle, a water tank and a cleaning device, the cleaning device comprises a base and a squeegee seat connected to the base, the base is connected with two first driving motors which are mirror-symmetrical, the two first driving motors are drivingly connected with cleaning brushes, the two cleaning brushes are flat-angle, the squeegee seat is connected with a squeegee, a guide wheel and a second driving motor, the second driving motor is drivingly connected with the guide wheel, the water tank comprises a clean water tank and a sewage tank, the clean water tank is connected with the cleaning brushes by a water channel, and the sewage tank is connected with the squeegee by a water channel. The first driving motor is used to drive the two flat-angle cleaning brushes, the cleaning is more comprehensive, the cleaning brushes are evenly grounded, and the wear is uniform, meanwhile, the second driving motor is used to drivingly connect the guide wheel to displace and turn, the second driving motor is used to turn by differential rotation, the turning is flexible and there is no motion dead angle, and the cleaning work can be better completed.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and more specifically to a floor scrubber. Background Technology

[0002] Floor scrubbers are becoming increasingly popular as cleaning appliances, expanding from their original use in public areas such as factories, shopping malls, and hospitals to homes and offices. They have also evolved from large to small models and from ride-on or two-handed push-along models to one-handed push-along models. The use of floor scrubbers is becoming more and more widespread, and their styles and sizes are becoming more and more diverse to meet people's needs for home life and office work.

[0003] Current electric floor scrubbers rely on angled cleaning brushes for steering. However, this is difficult to achieve when emergency steering is needed, or when the steering angle is too large and the turning space is limited. For example, when approaching a corner, steering is slow, the turning radius is large, operation is inconvenient, and requires a lot of physical effort. Often, it is necessary to stop the machine first and then slowly adjust the direction, leaving a large portion of the floor uncleaned, resulting in low work efficiency. With continuous use, the ground-level side of the angled cleaning brush is easily worn, further worsening the steering effect. Therefore, this type of floor scrubber needs improvement. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a floor scrubbing machine.

[0005] The technical solution to achieve the purpose of this invention is: a floor scrubber, which is provided with a handle, a water tank, and a cleaning device in sequence from top to bottom. The cleaning device is supported and stored below the water tank. The cleaning device includes a base and a scraper seat connected to the base. The base is connected to two mirror-symmetrical first drive motors. The two first drive motors drive and connect to cleaning brushes. The two cleaning brushes are at flat angles. The scraper seat is connected to a scraper, a guide wheel, and a second drive motor. The second drive motor drives and connects to the guide wheel. The water tank includes a clean water tank and a wastewater tank. The water channel of the clean water tank is connected to the cleaning brush, and the water channel of the wastewater tank is connected to the scraper.

[0006] The cleaning device described in the above technical solution includes a water pump, a rectifier, and a connector connected in sequence. The water pump pipeline is connected to the clean water tank, and the connector passes through the base.

[0007] The above technical solution describes a handle connected downward to a column sleeve, a water tank including a water tank base, a clean water tank and a wastewater tank inserted into the column sleeve and located above the water tank base, and a vacuum motor installed inside the water tank base.

[0008] The column sleeve described in the above technical solution is connected to the water tank base and located between the clean water tank and the wastewater tank. The water tank base is connected to the base through a first hinge and a second hinge.

[0009] The water tank base described in the above technical solution is provided with a spiral air duct above the vacuum motor.

[0010] The above technical solution describes a sewage tank comprising a sewage upper cover and a sewage lower cover, wherein the sewage upper cover and the sewage lower cover are snap-fitted together.

[0011] The clean water tank includes a clean water upper cover and a clean water lower cover, which are connected by snap-fit.

[0012] The wastewater tank described in the above technical solution also includes a wastewater tank filter screen, which is located in the upper middle part of the wastewater tank.

[0013] The water tank base described in the above technical solution also includes a sewage tank transition box, the sewage tank transition box is connected to the sewage tank by a water channel, and the sewage tank transition box is equipped with a filter screen.

[0014] The handle described in the above technical solution is an integrated design and is equipped with an LCD screen.

[0015] The base described in the above technical solution is also connected to a pre-cleaning mechanism, which includes a pre-cleaning roller and a pre-cleaning scraper. The pre-cleaning roller is hinged to the base, and the pre-cleaning scraper is located between the pre-cleaning roller and the cleaning brush.

[0016] After adopting the above technical solution, the present invention has the following positive effects:

[0017] (1) The present invention uses a first drive motor to drive two flat-angled cleaning brushes, which cleans more thoroughly. The cleaning brushes are evenly grounded and the bristles are worn evenly. At the same time, a second drive motor is used to drive the connecting guide wheel for displacement and steering. The rotational differential of the second drive motor is used for steering, which is flexible and has no dead angles, and can better complete the cleaning work.

[0018] (2) The water tank base of the present invention is provided with a spiral air duct above the vacuum motor, with a double-layer spiral structure, which can effectively reduce the noise generated when the floor scrubber is working.

[0019] (3) The sewage tank of the present invention also includes a sewage tank filter screen. The sewage tank transition box is equipped with a filter screen, which provides double filtration and can fully filter the sewage in the sewage tank, preventing solid waste from entering the water pipe and causing blockage.

[0020] (4) The base of the present invention is also connected to a pre-cleaning mechanism, including a pre-cleaning roller and a pre-cleaning scraper. When in use, the pre-cleaning roller is perpendicular to the base and grounded. When rotating, it can roll up or loosen objects that are tightly attached to the ground, such as hair, debris, and paper. Afterwards, as the pre-cleaning roller 81 continues to rotate, the hair, debris, and other objects carried on it will be scraped off by the pre-cleaning scraper 82 and then cleaned away by the cleaning brush 32. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 Another perspective view;

[0023] Figure 3 This is a partial schematic diagram of the cleaning device of the present invention;

[0024] Figure 4 This is a schematic diagram of the water tank after the sewage tank has been removed according to the present invention;

[0025] Figure 5 This is a cross-sectional view of the water tank base of the present invention;

[0026] Figure 6 This is a front view of the pre-cleaning mechanism of the present invention in its working state;

[0027] Figure 7 This is a front view of the pre-cleaning mechanism of the present invention in its retracted state.

[0028] In the diagram: Handle 1, Water tank 2, Base 3, Scraper seat 4, First drive motor 31, Cleaning brush 32, Power supply 33, Scraper 41, Guide wheel 42, Second drive motor 43, Clean water tank 21, Waste water tank 22, Water pump 51, Rectifier 52, Connector 53, Column sleeve 11, Water tank base 23, Vacuum motor 231, First hinge 61, Second hinge 62, Spiral air duct 232, Wastewater upper cover 221, Wastewater lower cover 222, Clean water upper cover 211, Clean water lower cover 212, Wastewater tank filter 223, Wastewater tank transition box 7, LCD screen 12, Positioning water inlet 233, Locking post 234, Locking ring 235, Pre-cleaning roller 81, Pre-cleaning scraper 82, Support plate 83, Hinge post 84. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention 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, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] Example 1, see Figures 1 to 7This invention provides a floor scrubbing machine, which consists of a handle 1, a water tank 2, and a cleaning device connected sequentially from top to bottom. The cleaning device is retractably connected to the bottom of the water tank 2. The cleaning device includes a base 3 and a scraper seat 4 connected to the base 3. The base 3 is connected to two mirror-symmetrical first drive motors 31, which drive cleaning brushes 32. The two cleaning brushes 32 are at flat angles. The scraper seat 4 is connected to a scraper 41, a guide wheel 42, and a second drive motor 43. The second drive motor 43 is powered by a power supply 33, which is a rechargeable battery that can be charged and discharged cyclically. The second drive motor 43 drives the guide wheel 42. The water tank 2 includes a clean water tank 21 and a wastewater tank 22. The clean water tank 21 is connected to the cleaning brushes 32, and the wastewater tank 22 is connected to the scraper 41.

[0036] This embodiment is the basic embodiment of the present invention. The handle 1, water tank 2, and cleaning device are connected sequentially from top to bottom. The handle 1 is an integrated design with an LCD screen 12, which can control the water output, water pump output, etc. The LCD screen 12 is surrounded by a main switch, knobs, etc. The handle 1 internally contains a Wi-Fi module, a charging module, etc. During use, the operator can perform full operation by holding the handle 1. The rotation of the first drive motor 31 and the second drive motor 43 is controlled by the internal circuit. The rotation of the first drive motor 31 drives the cleaning brush 32 to rotate. The cleaning brush 32 has a flat angle design, which can maximize the cleaning area of ​​the cleaning brush 32. With the clean water in the clean water tank 21, it can clean the wet floor while rotating, and the brush bristles are evenly grounded for a more thorough cleaning. The rotation of the two second drive motors 43 drives the guide wheel 42 to rotate, thereby driving the floor scrubber forward. Turning is achieved by the difference in speed between the two second drive motors 43 to move the floor scrubber left and right, which is flexible and has no dead angles, and can better complete the cleaning work. During the journey, the water on the ground is scraped off by the scraper 41 on the scraper seat 4 and absorbed into the sewage tank 22 through the waterway.

[0037] In this embodiment, the cleaning device includes a water pump 51, a rectifier 52, and a connector 53 connected in sequence. The water pump 51 is connected to the clean water tank 21, and the connector 53 extends through the base 3. The water pump 51 is controlled by the handle 1 to draw clean water from the clean water tank 21 and spray it through the connector 53 towards the front of the cleaning brush 32, facilitating the cleaning brush 32 to scrub the floor.

[0038] In this embodiment, the handle 1 is connected downward to a column sleeve 11. The water tank 2 includes a water tank base 23. The clean water tank 21 and the wastewater tank 22 are inserted into the column sleeve 11 and located above the water tank base 23. A vacuum motor 231 is provided inside the water tank base 23. The water tank base 23 has a positioning port 233 below the column sleeve 11 for positioning the clean water tank 21 and the wastewater tank 22, facilitating the installation of the clean water tank 21 and the wastewater tank 22. A retaining post 234 is sleeved on the upper middle part of the column sleeve 11. The clean water tank 21 and the wastewater tank 22 are engaged with the retaining post 234 by a retaining ring 235, thereby realizing the detachable connection of the clean water tank 21 and the wastewater tank 22. The vacuum motor 231 is connected to the sewage tank 22 via a pipeline, and the air intake is located above the scraper 41. During operation, a negative pressure is formed in the sewage tank 22, and the air intake draws the sewage near the scraper 41 into the sewage tank 22.

[0039] In this embodiment, in order to keep the vacuum motor 231 as quiet as possible during operation, the water tank base 23 is provided with a spiral air duct 232 above the vacuum motor 231, and the spiral air duct 232 is used to effectively reduce noise.

[0040] In this embodiment, the column sleeve 11 is connected to the water tank base 23 and located between the clean water tank 21 and the wastewater tank 22. The water tank base 23 is connected to the base 3 via a first hinge 61 and a second hinge 62. The cooperative connection of the first hinge 61 and the second hinge 62 allows the cleaning device to rotate easily during the cleaning process and can be folded after cleaning. With the help of multiple guide wheels, it can be easily stored and moved out.

[0041] In this embodiment, the sewage tank 22 includes a sewage upper cover 221 and a sewage lower cover 222, which are snap-fitted together.

[0042] In this embodiment, the clean water tank 21 includes a clean water upper cover 211 and a clean water lower cover 212, which are snap-fitted together.

[0043] Example 2, see Figures 1 to 7 The difference between this embodiment and Embodiment 1 is that the water tank base 23 further includes a sewage tank transition box 7, which is connected to the sewage tank 22 via a water channel. The sewage tank transition box 7 is equipped with a filter screen (not shown in the figure). When the vacuum motor 231 is operating, the suction port first draws sewage into the sewage tank transition box 7, where the filter screen (not shown in the figure) filters out larger debris such as hair and paper scraps.

[0044] In this embodiment, the wastewater tank 22 further includes a wastewater tank filter 223, which is located in the upper middle part of the wastewater tank 22. The inner cavity of the wastewater tank 22 is an inverted U-shaped ring channel. The filter 223 is located on the side of the inverted U-shaped ring channel where wastewater is drawn in. After the wastewater is initially filtered by the filter of the wastewater tank transition box 7, it can be filtered again by the wastewater tank filter 223 in the upper middle part of the wastewater tank 22 before entering the other side of the inverted U-shaped ring channel for storage.

[0045] Example 3, see Figures 1 to 7 The difference between this embodiment and Embodiment 1 is that the base 3 is further connected to a pre-cleaning mechanism, which includes a pre-cleaning roller 81 and a pre-cleaning scraper 82. The pre-cleaning roller 81 is hinged to the base 3, and the pre-cleaning scraper 82 is located between the pre-cleaning roller 81 and the cleaning brush 32. The pre-cleaning roller 81 is an electric roller brush, connected to the base 3 using a pre-set support plate 83 and a hinge column 84. The base 3 has a slot (not marked in the figure) to facilitate the 90° rotation of the support plate 83. When not in use, the pre-cleaning roller 81 is horizontal to the base 3 and not grounded by the rotation of the support plate 83 on the hinge column 84. When in use, the pre-cleaning roller 81 is perpendicular to the base 3 and grounded by the rotation of the support plate 83 on the hinge column 84, which can roll up or loosen objects that are tightly attached to the ground, such as hair, debris, and paper scraps. Subsequently, as the pre-cleaning roller 81 rotates, the hair, debris, and other debris it carries will be scraped off by the pre-cleaning scraper 82 and then cleaned away by the cleaning brush 32.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A floor scrubber, comprising, from top to bottom, a handle (1), a water tank (2), and a cleaning device, wherein the cleaning device is reliably and conceivably connected to the lower part of the water tank (2); characterized in that: The cleaning device includes a base (3) and a scraper seat (4) connected to the base (3). The base (3) is connected to two mirror-symmetrical first drive motors (31). The two first drive motors (31) drive and connect to cleaning brushes (32). The two cleaning brushes (32) are at flat angles. The scraper seat (4) is connected to a scraper (41), two guide wheels (42), and two second drive motors (43). The second drive motors (43) drive and connect to the guide wheels (42). The water tank (2) includes a clean water tank (21) and a wastewater tank (22). The clean water tank (21) is connected to the cleaning brushes (32), and the wastewater tank (22) is connected to the scraper (41). The two guide wheels (42) move left and right respectively through the speed difference of the two second drive motors (43).

2. The floor scrubbing machine according to claim 1, characterized in that: The cleaning device includes a water pump (51), a rectifier (52), and a connector (53) connected in sequence. The water pump (51) is connected to the clean water tank (21) and the connector (53) is connected to the base (3).

3. A floor scrubbing machine according to claim 1, characterized in that: The handle (1) is connected downward to a column sleeve (11), the water tank (2) includes a water tank base (23), the clean water tank (21) and the sewage tank (22) are inserted into the column sleeve (11) and located above the water tank base (23), and a vacuum motor (231) is provided inside the water tank base (23).

4. A floor scrubbing machine according to claim 3, characterized in that: The column sleeve (11) is connected to the water tank base (23) and located between the clean water tank (21) and the sewage tank (22). The water tank base (23) is connected to the base (3) through the first hinge (61) and the second hinge (62).

5. A floor scrubbing machine according to claim 3, characterized in that: The water tank base (23) is provided with a spiral air duct (232) above the vacuum motor (231).

6. A floor scrubbing machine according to claim 1, characterized in that: The sewage tank (22) includes a sewage upper cover (221) and a sewage lower cover (222), which are snap-fitted together; the clean water tank (21) includes a clean water upper cover (211) and a clean water lower cover (212), which are snap-fitted together.

7. A floor scrubbing machine according to claim 5, characterized in that: The wastewater tank (22) also includes a wastewater tank filter (223), which is located in the upper middle part of the wastewater tank (22).

8. A floor scrubbing machine according to claim 3, characterized in that: The water tank base (23) also includes a sewage tank transition box (7), the sewage tank transition box (7) is connected to the sewage tank (22) by a waterway, and the sewage tank transition box (7) is equipped with a filter screen.

9. A floor scrubbing machine according to claim 1, characterized in that: The base (3) is also connected to a pre-cleaning mechanism, which includes a pre-cleaning roller (81) and a pre-cleaning scraper (82). The pre-cleaning roller (81) is hinged to the base (3), and the pre-cleaning scraper (82) is located between the pre-cleaning roller (81) and the cleaning brush (32).

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