Cleaning apparatus

Abstract

The present application relates to a kind of cleaning equipment, including handle, extension rod and rolling brush head connected in turn, rolling brush head includes multiple rolling brush arranged along its axial direction, it further includes driving member;Gear box assembly, the input end of gear box assembly is connected with driving member, the output end of gear box assembly is connected with the rotating shaft of rolling brush head, multiple rolling brush is distributed symmetrically along axial direction in the two sides of gear box assembly;Cleaning agent container, cleaning agent container is used to store cleaning agent, rolling brush head further includes protective cover, cleaning agent container is set on protective cover;Cleaning agent pipeline, cleaning agent pipeline and driving member are located at the two sides of gear box assembly respectively;Cleaning agent control valve, cleaning agent control valve, cleaning agent container are connected with cleaning agent pipeline, cleaning agent control valve is in the opening state for making cleaning agent flow out along axial direction, cleaning agent control valve and cleaning agent pipeline are located at the same side of gear box assembly.This cleaning equipment is better in stability under the premise of guaranteeing better cleaning effect.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to cleaning equipment. Background Technology

[0002] When floors get dirty in daily life, people usually use cleaning brushes or mops to clean them. Some cleaning devices include detergent containers and tubing that spray detergent during cleaning, enhancing the effectiveness against stubborn stains. However, the addition of these components shifts the device's center of gravity. If the operator leaves the area unattended and temporarily leans the device against a wall or other surface, the shifted center of gravity can cause the device to tip over and break. Summary of the Invention

[0003] Based on this, the present invention proposes a cleaning device that, while ensuring a good cleaning effect, has a relatively balanced weight on both sides of the extension rod, and is stable when pressed against walls or other areas, making it less likely to tip over and break.

[0004] A cleaning device includes a handle, an extension rod, and a roller brush head connected in sequence. The roller brush head includes multiple roller brushes arranged along its own axial direction.

[0005] Drive components;

[0006] A toothed box assembly, wherein the input end of the toothed box assembly is connected to the drive component, the output end of the toothed box assembly is connected to the rotating shaft of the roller brush head, and a plurality of roller brushes are symmetrically distributed on both sides of the toothed box assembly along the axial direction;

[0007] A cleaning agent container for storing cleaning agent, and the roller brush head further includes a protective cover on which the cleaning agent container is disposed;

[0008] The cleaning agent pipeline, along the axial direction, is located on both sides of the gearbox assembly, respectively, along with the drive unit.

[0009] A cleaning agent control valve is provided, and both the cleaning agent control valve and the cleaning agent container are connected to the cleaning agent pipeline. When the cleaning agent control valve is in the open state, it is used to allow the cleaning agent to flow out through the cleaning agent pipeline. The cleaning agent control valve and the cleaning agent pipeline are located on the same side of the gearbox assembly.

[0010] In one embodiment, the cleaning agent container is symmetrically arranged about the extension rod.

[0011] In one embodiment, the detergent container is located on the side of the detergent line away from the roller brush, and the detergent line is connected to the bottom end of the detergent container.

[0012] In one embodiment, the gearbox assembly includes a multi-stage cylindrical gear set, and the output shaft of the drive member is perpendicular to the gear end face of the multi-stage cylindrical gear set.

[0013] In one embodiment, the gearbox assembly includes a plurality of gears, at least three of which have parallel end faces, and the center of gravity of the gearbox assembly is coplanar with the center of gravity of the detergent container.

[0014] In one embodiment, a nozzle is also included, the cleaning agent line includes a first line and a second line, the cleaning agent control valve is connected to the cleaning agent container through the first line, the cleaning agent control valve is connected to the nozzle through the second line, and the first line is selectively connected to the second line through the cleaning agent control valve.

[0015] In one embodiment, the extension rod is provided with a cleaning agent control trigger, which is connected to the cleaning agent control valve via a cable. The cleaning agent control trigger switches the cleaning agent control valve to the open state by pulling the cable.

[0016] In one embodiment, the cleaning agent control valve includes a valve body and a valve core, the valve core being disposed inside the valve body and connected to a cable. When the valve core is pulled by the cable to move relative to the valve body in a direction away from the first pipeline, the first pipeline communicates with the second pipeline through a gap inside the valve body. An elastic element for driving the valve core to move in the opposite direction to reset is provided between the valve core and the valve body.

[0017] In one embodiment, a third conduit connected to the nozzle and connected to a water source is also included, and the second conduit is connected to the third conduit.

[0018] In one embodiment, the third pipeline includes a first segment, a second segment, and a third segment connected sequentially along its length. The first segment is connected to the interface of the water source, the third segment is connected to the nozzle, and the area where the second segment is located is close to the connection between the second pipeline and the third pipeline. The cross-sectional area of ​​the first segment and the third segment is greater than the cross-sectional area of ​​the second segment.

[0019] In one embodiment, the ratio 'a' of the cross-sectional areas of the first segment and the second segment is in the range of 5 ≤ a ≤ 10.

[0020] The aforementioned cleaning equipment is equipped with a cleaning agent container to hold the cleaning agent. During use, if stubborn stains are encountered, the cleaning agent control valve can be opened to allow the cleaning agent in the container to flow out through the cleaning agent pipeline, thereby enhancing the cleaning power and making stubborn stains easier to remove. While ensuring good cleaning results, the cleaning agent control valve and cleaning agent pipeline are located on one side of the gearbox assembly, and the drive unit is located on the other side. The weight of the cleaning agent control valve and cleaning agent pipeline can be balanced with that of the drive unit, resulting in a more even weight distribution on both sides of the gearbox assembly. Multiple roller brushes are symmetrically distributed along the axial direction on both sides of the gearbox assembly, which also contributes to the even weight distribution. When the cleaning equipment is pressed against a wall or other area, it has good stability and is less likely to tip over and break due to excessive weight on one side. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the cleaning equipment in one embodiment of the present invention;

[0022] Figure 2 for Figure 1 Front view of the cleaning equipment;

[0023] Figure 3 for Figure 1 A partial structural diagram of the roller brush head and extension rod of a cleaning equipment;

[0024] Figure 4 for Figure 1 A structural diagram of the cleaning agent pipeline, cleaning agent control valve, drive components, and other parts of the cleaning equipment;

[0025] Figure 5 for Figure 1 A schematic diagram of the drive components and multi-stage cylindrical gear set of a medium-sized cleaning equipment;

[0026] Figure 6 for Figure 1 A cross-sectional view of the cleaning agent control valve of a cleaning equipment.

[0027] Figure 7 for Figure 1 A cross-sectional view of the connection between the third and second pipes of the cleaning equipment;

[0028] Figure 8 for Figure 1 A schematic diagram of the structure of the roller brush in the cleaning equipment.

[0029] Figure label:

[0030] Handle 100, extension rod 200, grip 210, cleaning agent control trigger 211, cable 220, upper shell 310, lower shell 320, protective cover 330, support part 331, protective cover body 332, recessed part 3321, nozzle cover 340, drive unit 410, output shaft 411, gearbox assembly 420, first gear 421, second gear 422, third gear 423, fourth gear 424, fifth gear 425, roller brush head 500, roller brush 510, roller brush body 511, bristles 512, rotating shaft 520, detergent container 600, air valve 610, detergent pipeline 700, first pipeline 710, second pipeline 720, third pipeline 730, first section 731, second section 732, third section 733, diverter pipe 734, water inlet 735, detergent control valve 800, valve body 810, cavity 811, limiting element 812, valve core 820, groove 821, elastic element 830, piston 840, first pipeline interface 851, second pipeline interface 852, nozzle 900. Detailed Implementation

[0031] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] See Figure 1 , Figure 2 and Figure 4 , Figure 1 This is a schematic diagram of the overall structure of the cleaning equipment according to one embodiment of the present invention. Figure 2 for Figure 1 Front view of the cleaning equipment. Figure 4 for Figure 1A schematic diagram of the structure of the cleaning equipment, including the cleaning agent pipeline, cleaning agent control valve, and drive component. One embodiment of the cleaning equipment provided by this invention includes a handle 100, an extension rod 200, a drive component 410, a toothed box assembly 420, a roller brush head 500, a cleaning agent container 600, a cleaning agent pipeline 700, and a cleaning agent control valve 800. The handle 100, extension rod 200, and roller brush head 500 are connected sequentially. The roller brush head 500 includes multiple roller brushes 510 arranged along its own axial direction. The input end of the toothed box assembly 420 is connected to the drive component 410, and the output end of the toothed box assembly 420 is connected to the rotating shaft 520 of the roller brush head 500. In use, the drive component 410 drives the rotating shaft 520 to rotate via the toothed box assembly 420, thereby causing the roller brushes 510 mounted on the rotating shaft 520 to rotate. As the roller brushes 510 rotate, they rub against the ground, removing dirt adhering to the ground. Users can hold the handle 100 and extension bar 200 to move the roller brush head 500 to refresh the cleaning area.

[0038] The cleaning agent container 600 can store cleaning agent, which can be any liquid with cleaning power. Both the cleaning agent control valve 800 and the cleaning agent container 600 are connected to the cleaning agent pipeline 700. When the cleaning agent control valve 800 is open, the cleaning agent can flow out through the cleaning agent pipeline 700. During use, if stubborn stains are encountered, the cleaning agent control valve 800 can be opened to allow the cleaning agent in the cleaning agent container 600 to flow out through the cleaning agent pipeline 700, thereby enhancing the cleaning power and making stubborn stains easier to remove.

[0039] Multiple roller brushes 510 of the roller brush head 500 are symmetrically distributed along the axial direction on both sides of the gearbox assembly 420. For example, in one embodiment shown in the figures, one roller brush 510 is distributed on each side of the gearbox assembly 420. In other embodiments, the number of roller brushes 510 may also be different, for example, four roller brushes 510 are provided, with two roller brushes 510 distributed on each side of the gearbox assembly 420. Along the axial direction, the detergent line 700 and the drive member 410 are respectively located on both sides of the gearbox assembly 420, and the detergent control valve 800 and the detergent line 700 are located on the same side of the gearbox assembly 420, that is, the detergent control valve 800 and the detergent line 700 are located on one side of the gearbox assembly 420, and the drive member 410 is located on the other side of the gearbox assembly 420. In this way, the weight of the cleaning agent control valve 800 and the cleaning agent pipeline 700 can be balanced with the weight of the drive component 410, making the weight on both sides of the gearbox assembly 420 more even. Along the axial direction of the roller brush 510 itself, multiple roller brushes 510 are symmetrically distributed on both sides of the gearbox assembly 420, which also makes the weight on both sides of the gearbox assembly 420 more even. When the cleaning equipment is pressed against a wall or other area, it has good stability and is less likely to tip over and break due to excessive weight on one side. It should be noted that "along the axial direction" mentioned in this text refers to the axial direction of the roller brush head 500.

[0040] See Figure 1 , Figure 3 and Figure 4 , Figure 3 for Figure 1This is a partial structural diagram of the roller brush head and extension rod of the cleaning equipment. In some embodiments, a protective cover 330 is also provided, with the toothed box assembly 420 and the roller brush 510 both located inside the protective cover 330, and the cleaning agent container 600 disposed on the protective cover 330. The bottom area of ​​the protective cover 330 is open, and most of the roller brush 510 is covered by the protective cover 330, with a portion exposed through the opening and in contact with the ground. The protective cover 330 can protect components such as the roller brush 510 and the toothed box assembly 420 from damage by external objects. In addition, the cleaning equipment also includes an upper shell 310 and a lower shell 320, both of which are fixed to the protective cover 330. Components such as the drive unit 410, the cleaning agent pipeline 700, and the cleaning agent control valve 800 are disposed in the space between the upper shell 310, the lower shell 320, and the protective cover 330. The upper shell 310 and the lower shell 320 can isolate these components from the outside environment to provide protection. When the cleaning device is in use, the extension rod 200 is tilted relative to the ground, with the upper shell 310 located on the side away from the user and the lower shell 320 located on the side closer to the user. The protective cover 330 includes a support portion 331 that covers the end of the extension rod 200 and a protective cover body 332 that covers part of the roller brush head 510. The support portion 331 of the protective cover 330 is wrapped between the upper shell 310 and the lower shell 320. Part of the outer wall of the protective cover body 332 is in contact with part of the inner wall of the upper shell 310 and the lower shell 320. An opening is provided on the side of the protective cover body 332 away from the upper shell 320 so that the roller brush 510 can be exposed from the opening. The upper shell 310 and the lower shell 320 are fixedly connected. Specifically, the upper shell 310 and the lower shell 320 can be fixed by threaded fasteners or by snap-fit ​​connections. Similar fixing methods can also be used between the upper shell 310 and the protective cover 330. Further, in the embodiment shown in the figures, the protective cover 330 is symmetrical about the extension rod 200.

[0041] See Figure 2 and Figure 3 Preferably, in some embodiments, the cleaning agent container 600 is symmetrically arranged about the extension rod 200. Specifically, the cleaning agent container 600 is symmetrically shaped and is mounted on the protective cover 330 at the axial center, with one half distributed on one side of the extension rod 200 and the other half distributed on the other side. A notch is provided in a corresponding area on the upper shell 310, through which the cleaning agent container 600 protrudes. In some embodiments, the cleaning agent container 600 can be fixed to the protective cover 330. In this case, a refill port can be provided on the cleaning agent container 600, and when the cleaning agent stored inside is about to run out, the cleaning agent can be refilled through the refill port. In other embodiments, the cleaning agent container 600 can also be detachably connected to the protective cover 330, and when the cleaning agent stored inside is about to run out, it can be removed and replaced with a new cleaning agent container 600. See also Figures 1 to 3Preferably, in some embodiments, when the cleaning equipment is in use, the cleaning agent container 600 is located on the side of the cleaning agent pipeline 700 away from the roller brush 510. When the cleaning equipment is in use, it is tilted relative to the ground, and the cleaning agent container 600 is located above the cleaning agent pipeline 700, which facilitates the outflow of the cleaning agent stored in the cleaning agent container 600. When the amount of cleaning agent stored in the cleaning agent container 600 is small, the cleaning agent can flow out as much as possible, minimizing residue and waste. Furthermore, the connection between the cleaning agent pipeline 700 and the cleaning agent container 600 is located at the bottom region of the cleaning agent container 600. In this way, when the amount of cleaning agent stored in the cleaning agent container 600 is small, the cleaning agent can flow out as much as possible, minimizing residue. The bottom of the cleaning agent container 600 can be the end of the cleaning agent container 600 or the side near the end.

[0042] See Figures 4 to 5 , Figure 5 for Figure 1 A schematic diagram of the drive unit and multi-stage cylindrical gear set of the cleaning equipment. In some embodiments, the gearbox assembly 420 includes a multi-stage cylindrical gear set, and the output shaft 411 of the drive unit 410 is perpendicular to the gear end face of the multi-stage cylindrical gear set, that is, the output shaft 411 of the drive unit 410 also extends along the axial direction of the roller brush head 500. In this embodiment, the use of a multi-stage cylindrical gear set to transmit power can reduce the axial width of the gearbox assembly 420, making the structure more compact, thereby reducing the axial width of the entire roller brush head 500. Since the roller brushes 510 are symmetrically distributed on both sides of the gearbox assembly 420, the area between the two roller brushes 510, that is, the area where the gearbox assembly 420 is located, will not have cleaning power, and a stain will be left in this area during cleaning. In this embodiment, the axial width of the gearbox assembly 420 is reduced, so the stain left in the area between the two roller brushes 510 is narrower, or even negligible, during cleaning, enabling more thorough cleaning and reducing the likelihood of dead corners. Preferably, in some embodiments, the end faces of at least three gears in the gearbox assembly 420 are parallel. This arrangement can further reduce the width of the gearbox assembly 420 along the gear axis, making the structure more compact and resulting in narrower stains left in the area between the two roller brushes 510. In addition, the center of gravity of the gearbox assembly 420 is coplanar with the center of gravity of the cleaning agent container 600, which can improve the stability of the cleaning device and make it less prone to tipping over.

[0043] Specifically, the multi-stage cylindrical gear set includes a first gear 421, a second gear 422, a third gear 423, a fourth gear 424, and a fifth gear 425. All five gears are cylindrical gears, which can be spur gears or helical gears. The output shaft 411 of the drive unit 410 is connected to the first gear 421, and the two are coaxial. The first gear 421 meshes with the second gear 422, the second gear 422 is coaxially arranged with the third gear 423, the third gear 423 meshes with the fourth gear 424, the fourth gear 424 meshes with the fifth gear 425, and the fifth gear 425 is coaxially connected to the rotating shaft 520 of the brush head 500. The end faces of the third gear 423, the fourth gear 424, and the fifth gear 425 are parallel, and the end faces of the first gear 421 and the second gear 422 are parallel. With this arrangement, there are only two rows of gears along the gear axis, which allows the gearbox assembly 420 to have a smaller width along the gear axis, resulting in a more compact structure.

[0044] See Figures 2 to 4 The specific structure of the cleaning agent pipeline 700 is described below. In some embodiments, the cleaning agent pipeline 700 can be a flexible hose that is easy to bend and not easily broken. Specifically, plastic or rubber hoses can be used as the cleaning agent pipeline 700.

[0045] In some embodiments, the cleaning agent pipeline 700 includes a first pipeline 710 and a second pipeline 720. A cleaning agent control valve 800 is connected to a cleaning agent container 600 via the first pipeline 710 and communicates with a nozzle 900 via the second pipeline 720. The first pipeline 710 is selectively connected to the second pipeline 720 via the cleaning agent control valve 800. Specifically, when the cleaning agent control valve 800 is in the open state, the cleaning agent stored in the cleaning agent container 600 can flow into the cleaning agent control valve 800 via the first pipeline 710, and then flow from the cleaning agent control valve 800 into the nozzle 900 via the second pipeline 720, and be sprayed onto the ground from the nozzle 900 to enhance the cleaning power. When the cleaning agent control valve 800 is in the closed state, the cleaning agent stored in the cleaning agent container 600, after flowing into the first pipeline 710, is blocked by the cleaning agent control valve 800, and thus cannot flow into the second pipeline 720. One end of the first pipe 710 is connected to the detergent control valve 800, and the other end is connected to the bottom of the detergent container 600; one end of the second pipe 720 is connected to the detergent control valve 800, and the other end is directly or indirectly connected to the nozzle 900.

[0046] See Figure 1 and Figure 3Preferably, in some embodiments, when the cleaning device is in use, the nozzle 900 is positioned in front of the roller brush 510. Thus, when cleaning an area by pushing the roller brush 510 forward in a conventional cleaning manner, the nozzle 900 passes over the area first, followed by the roller brush 510. If the area has stubborn stains, the cleaning agent control valve 800 can be switched to the open state, allowing cleaning agent to be sprayed from the nozzle 900 into the area. When the roller brush 510 brushes over the area, the cleaning power will be enhanced, and the stains will be easier to remove. Preferably, in some embodiments, multiple nozzles 900 can be provided, and the multiple nozzles 900 are evenly arranged along the axial direction, so that more cleaning agent can be sprayed, further improving the cleaning power. A nozzle cover 340 is also provided outside the nozzle 900. The nozzle 900 protrudes from the bottom of the protective cover body 332. The nozzle cover 340 is fixedly connected to the bottom of the protective cover body 332 or integrally formed. The nozzle cover 340 covers the part of the nozzle 900 that is connected to the pipeline. The nozzle orifice of the nozzle 900 is exposed at the bottom of the nozzle cover 340 so as to spray the cleaning liquid onto the ground.

[0047] See Figure 1 , Figure 3 , Figure 4 and Figure 6 , Figure 6 for Figure 1 A cross-sectional view of the cleaning agent control valve of the cleaning equipment. A cleaning agent control trigger 211 is mounted on the extension rod 200. The trigger 211 is connected to the cleaning agent control valve 800 via a cable 220. When the trigger 211 is pulled, it pulls the cable 220, switching the cleaning agent control valve 800 to the open state, thus connecting the first pipeline 710 and the second pipeline 720. Specifically, a grip 210 is provided on the extension rod 200. When using the cleaning equipment, the user can hold the grip 210 and the extension rod 200. The cleaning agent control trigger 211 is located at the grip 210. The cable 220 can be a steel wire rope, extending along the length of the extension rod 200, with one end fixedly connected to the cleaning agent control trigger 211 and the other end connected to the cleaning agent control valve 800. Preferably, a limiting member can be used to restrict the position of the cable 220 on the surface of the extension rod 200 to prevent it from getting tangled. The limiting member can be a cable clamp or a similar component.

[0048] Furthermore, in some embodiments, the detergent control valve 800 includes a valve body 810 and a valve core 820. The valve core 820 is disposed inside the valve body 810 and is fixedly connected to the pull cable 220. When the detergent control trigger 211 is pulled, the trigger 211 will pull the pull cable 220, which will cause the valve core 820 to move away from the brush head 510, that is, move towards the detergent control trigger 211. At this time, a gap is created between the valve core 820 and the valve body 810. The first pipeline 710 is connected to the second pipeline 720 through the gap, allowing detergent to flow out from the detergent container 600, enter the gap, and flow into the second pipeline 720. An elastic element 830 is provided between the valve core 820 and the valve body 810 for driving the valve core 820 to move in the opposite direction to reset. When the cleaning agent control trigger 211 is released, the valve core 820 will move in the opposite direction to reset under the drive of the elastic element 830, that is, the gap disappears and the valve core 820 blocks the flow of liquid in the first pipeline 710.

[0049] Specifically, the valve body 810 is fixed to the support portion 331 of the protective cover 330. The support portion 331 is provided with a mounting groove that matches the shape and size of the valve body 810. Part of the valve body 810 is installed in the mounting groove, and the other part is exposed outside the mounting groove. The valve body 810 is cylindrical, and the mounting groove is a cylindrical groove. The valve body 810 is provided with two limiting members 812 distributed circumferentially along the valve body 810. When the valve body 810 is installed in place, the limiting members 812 will abut against the support portion 331 to prevent the valve body 810 from rotating circumferentially in the mounting groove and causing positional displacement. The valve body 810 is provided with a first pipe interface 851 and a second pipe interface 852. The first pipe 710 is fixedly connected to the first pipe interface 851, and the second pipe 720 is fixedly connected to the second pipe interface 852. The valve body 810 is hollow inside to form a cavity 811, and the valve core 820 is disposed in the cavity 811. A piston 840 is provided at the end of the valve core 820, and the piston 840 is interference-fitted with the cavity 811. An elastic element 830 is sleeved on the outside of the valve core 820. One end of the elastic element 830 abuts against the piston 840, and the other end abuts against the upper end wall of the cavity 811. When the elastic element 830 is in a compressed state, under its rebound force, the piston 840 will abut against the lower end wall of the cavity 811, blocking both the first pipe interface 851 and the second pipe interface 852, so that the first pipe 710 cannot be connected to the second pipe 720. A groove 821 is provided on the valve core 820, and the end of the pull cable 220 is fixed to the groove 821. When the detergent control trigger 211 is pulled, it will pull the cable 220. As the cable 220 moves the valve core 820, the piston 840 will gradually separate from the first pipe interface 851 and the second pipe interface 852. That is, a gap will be created between the piston 840 and the valve body 810, allowing the first pipe 710 to connect with the second pipe 720 through the gap. The detergent stored in the detergent container 600 can flow into the cavity 811 through the first pipe 710, and then into the second pipe 720 through the second pipe interface 852. During this process, the elastic element 830 is further compressed. When the detergent control trigger 211 is released, the elastic element 830 rebounds, the piston 840 resets, and the first pipe interface 851 and the second pipe interface 852 are sealed again.

[0050] When using this cleaning device, the roller brush 510 can be pre-wetted. During use, the first pipe 710 and the second pipe 720 can be connected as needed, and cleaning agent can be sprayed to enhance cleaning power. A suction pump can be installed to extract the cleaning agent flowing into the cavity 811 of the cleaning agent control valve 800 and to the nozzle 900. Alternatively, the roller brush 510 can be used without pre-wetting and can be dried directly. Alternatively, water can be supplied during use, and cleaning agent can be sprayed as needed.

[0051] See Figure 3 and Figure 4In some embodiments, the cleaning device supplies water and sprays cleaning agent as needed during use. The cleaning device is equipped with a third pipe 730 connected to the nozzle 900, which is connected to a water source. A second pipe 720 is also connected to the third pipe 730. During use, water flows from the water source into the third pipe 730, and the cleaning agent in the cavity 811 of the cleaning agent control valve 800 flows through the second pipe 720 into the third pipe 730, mixing with the water before flowing into the nozzle 900. Specifically, the water source can be a tap water pipe. The third pipe 730 is equipped with an inlet 735 for connecting to a tap water pipe. When the tap water pipe is turned on, water enters the third pipe 730 through the inlet 735. Thus, no additional water tank is required, and the weight of the cleaning device is not excessive. The third conduit 730 extends along the center of the protective cover 330, and its end is connected to multiple branch pipes 734. Each branch pipe 734 is connected to a nozzle 900. After the cleaning agent is mixed with water, it is branched into each branch pipe 734 and then sprayed out from each nozzle 900. Preferably, the protective cover body 332 has a recess 3321, the shape of which matches the third conduit 730, and the third conduit 730 is fitted into the recess 3321. Specifically, the protective cover body 332 is arc-shaped, and the recess 3321 extends along the outer surface of the protective cover body 332. The third conduit 730 is a flexible tube that can extend to fit the recess 3321. In this way, the third conduit 730 does not occupy space outside the protective cover 330, thereby minimizing the size of the upper shell 310 and making it fit snugly against the protective cover body 332, thus reducing the external size.

[0052] In some embodiments, a suction pump can be used to draw the cleaning agent from the cavity 811 of the cleaning agent control valve 800 into the second line 720 and into the third line 730 to mix with water.

[0053] In other embodiments, the cleaning agent can also be extracted using the Venturi effect. See also Figure 3 , Figure 4 and Figure 7 , Figure 7 for Figure 1A cross-sectional view of the connection between the third and second pipes of the cleaning equipment. Specifically, the third pipe 730 includes a first section 731, a second section 732, and a third section 733 connected sequentially along its length. The end of the first section 731 is provided with a water inlet 735, which is connected to the water source interface, i.e., a tap water pipe. The end of the third section 733 is connected to each branch pipe 734. The area where the second section 732 is located is close to the connection between the second pipe 720 and the third pipe 730. The cross-sectional area of ​​the first section 731 and the third section 733 is larger than that of the second section 732. An air valve 610 is provided on the cleaning agent container 600. The air valve 610 is a one-way air valve, which allows outside air to enter the cleaning agent container 600, making the air pressure inside the cleaning agent container 600 and its connected components the same as the outside atmospheric pressure. According to the Venturi effect, when a fluid flows through a pipe and passes through a narrowed cross-section, the fluid velocity increases and the pressure decreases, resulting in an adsorption effect. Therefore, by adjusting the ratio 'a' of the cross-sectional areas of the first section 731 and the second section 732, so that the pressure in the area of ​​the second section 732 is less than atmospheric pressure, a negative pressure is created. At this time, the cleaning agent control valve 800 is opened, and the external atmospheric pressure enters the cleaning agent container 600 through the one-way valve, forcing the cleaning agent into the first pipe 710, or in other words, the cleaning agent is drawn into the first pipe 710. The cleaning agent in the first pipe 710 enters the cavity 811, then passes through the second pipe 720 and is drawn into the third pipe 730, where it mixes with water, and finally is sprayed onto the ground through the nozzle 900. In this embodiment, there is no need to set up a suction pump or other components for suction, which can reduce the number of components and simplify the overall structure.

[0054] Preferably, in some embodiments, the ratio 'a' of the cross-sectional area of ​​the first segment 731 to the cross-sectional area of ​​the second segment 732 is in the range of 5 ≤ a ≤ 10, at which point the adsorption effect is better.

[0055] See Figure 4 and Figure 8 , Figure 8 for Figure 1 A schematic diagram of the structure of the roller brush in the cleaning equipment is shown below. The structure of the roller brush 510 is described below. The main body 511 of the roller brush 510 is a hollow cylinder, fitted onto the rotating shaft 520. Multiple clusters of bristles 512 are evenly distributed on the circumferential surface of the roller brush body 511. During cleaning, the roller brush body 511 rotates with the bristles 512, rubbing against the ground to remove stains. In some other embodiments, it can also be designed as a structure similar to a mop, with a sponge or plastic material on the circumferential surface of the roller brush body 511.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A cleaning device comprising a handle (100), an extension rod (200), and a roller brush head (500) connected in sequence, said roller brush head (500) comprising a plurality of roller brushes (510) arranged along its own axial direction, characterized in that, It also includes, Drive unit (410); A gearbox assembly (420) has its input end connected to the drive unit (410) and its output end connected to the rotating shaft (520) of the roller brush head (500). A plurality of roller brushes (510) are symmetrically distributed on both sides of the gearbox assembly (420) along the axial direction. A cleaning agent container (600) is provided for storing cleaning agent. The roller brush head (500) also includes a protective cover (330), on which the cleaning agent container (600) is disposed. An air valve (610) is provided on the cleaning agent container (600), which is a one-way valve, allowing external air to enter the cleaning agent container (600) through the air valve (610). The protective cover (330) includes a protective cover body (332) that partially encloses the roller brush head (500). A cleaning agent line (700) is located along the axial direction, and the cleaning agent line (700) and the drive unit (410) are located on opposite sides of the gearbox assembly (420); A cleaning agent control valve (800) and a cleaning agent container (600) are both connected to the cleaning agent pipeline (700). When the cleaning agent control valve (800) is in the open state, it is used to allow the cleaning agent to flow out through the cleaning agent pipeline (700). The cleaning agent control valve (800) and the cleaning agent pipeline (700) are located on the same side of the gearbox assembly (420). The gearbox assembly (420) includes a plurality of gears, at least three of which have parallel end faces. The gearbox assembly (420) is located between two of the roller brushes (510), and the output shaft (411) of the drive (410) is perpendicular to the end faces of the gears. A cleaning agent control trigger (211) is located on the extension rod (200) near the handle (100), and a cleaning agent control valve (800) is located on the extension rod (200) near the brush head (500). The cleaning agent control trigger (211) is connected to the cleaning agent control valve (800) via a cable (220). The cleaning agent control trigger (211) switches the cleaning agent control valve (800) to the open state by pulling the cable (220). The cleaning agent control valve (800) includes a valve body (810) and a valve core (820). When the cleaning agent control trigger (211) is pulled, the cleaning agent control trigger (211) will pull the cable (220), and the cable (220) will drive the valve core (820) to move. It also includes a nozzle (900) and a third conduit (730) connected to the nozzle (900). The cleaning agent conduit (700) includes a first conduit (710) and a second conduit (720). The third conduit (730) is connected to a water source. The second conduit (720) is connected to the third conduit (730). The cleaning agent control valve (800) is connected to the cleaning agent container (600) through the first conduit (710). The first conduit (710) is connected to... The cleaning agent control valve (800) is selectively connected to the second pipeline (720) so that the cleaning agent control valve (800) is connected to the nozzle (900) in sequence through the second pipeline (720) and the third pipeline (730); the protective cover body (332) is provided with a recess (3321), the shape of the recess (3321) matches the third pipeline (730), and the third pipeline (730) is locked in the recess (3321); The third pipe (730) and the gearbox assembly (420) extend in the same direction, and the length of the third pipe (730) is greater than that of the gearbox assembly (420). The third pipe (730) includes a first segment (731), a second segment (732) and a third segment (733) connected sequentially along the length direction. The first segment (731) is connected to the interface of the water source, and the third segment (733) is connected to the nozzle (900). The area where the second segment (732) is located is close to the connection between the second pipe (720) and the third pipe (730). The cross-sectional area of ​​the first segment (731) and the third segment (733) is greater than that of the second segment (732).

2. The cleaning equipment according to claim 1, characterized in that, The cleaning agent container (600) is symmetrically arranged about the extension rod (200).

3. The cleaning equipment according to claim 1, characterized in that, The detergent container (600) is located on the side of the detergent line (700) away from the roller brush (510), and the detergent line (700) is connected to the bottom end of the detergent container (600).

4. The cleaning equipment according to claim 1, characterized in that, The gearbox assembly (420) includes a multi-stage cylindrical gear set, and the output shaft (411) of the drive unit (410) is perpendicular to the gear end face of the multi-stage cylindrical gear set.

5. The cleaning equipment according to claim 4, characterized in that, The center of gravity of the gearbox assembly (420) is coplanar with the center of gravity of the detergent container (600).

6. The cleaning equipment according to claim 1, characterized in that, The valve core (820) is disposed inside the valve body (810). The valve core (820) is connected to the cable (220). When the valve core (820) is pulled by the cable (220) to move away from the first pipeline (710) relative to the valve body (810), the first pipeline (710) communicates with the second pipeline (720) through the gap in the valve body (810). An elastic element (830) is provided between the valve core (820) and the valve body (810) for driving the valve core (820) to move in the opposite direction to reset.

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