Gland assembly, cleaning head assembly, and scrubber

Abstract

The application provides a cover assembly, a cleaning head assembly and a scrubber, the cover assembly comprising a cover body, a pressing rib, a guide strip and a locking mechanism, the cover body covering a cleaning head shell; the pressing rib and the guide strip are both arranged on the cover body and both abut against a cleaning roller of the scrubber; the locking mechanism is arranged on the cover body and is used for locking / unlocking the cover body to the cleaning head shell; wherein the pressing rib and the guide strip form a water tank on the cover body, a filter is arranged in the water tank, and two ends of the water tank are connected to a clean water tank and a sewage tank of the scrubber. After the scrubber is used for a period of time, a certain amount of large-particle garbage or sticky garbage is accumulated in the water tank, and a user can conveniently and completely clean the water tank by easily taking down the entire cover assembly.

Description

Technical Field

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

[0002] As living standards gradually improve, people's demands for quality of life are also increasing. More and more people are laying beautiful flooring or tiles on their homes. When the flooring or tiles get dirty and need cleaning, the traditional method is to use brooms, mops, or scouring pads. This method is time-consuming and laborious, and it doesn't increase people's interest in cleaning, which is not conducive to maintaining a clean indoor environment. Therefore, floor scrubbers have emerged. A floor scrubber is a cleaning machine suitable for cleaning hard floors while simultaneously sucking up and removing wastewater from the site.

[0003] Currently, the wastewater generated by floor scrubbers typically flows into a wastewater tank through a water tank inside the machine. However, the wastewater often contains undissolved particles, which can easily clog the wastewater tank. Furthermore, once a certain amount of debris accumulates in the water tank, it becomes very inconvenient for users to clean it out. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a capping assembly, a cleaning head assembly, and a floor scrubber, aiming to solve the technical problems of easy clogging of the wastewater tank and the inconvenience of cleaning accumulated garbage in the water tank in existing floor scrubbers.

[0005] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a capping assembly for covering the cleaning roller of a floor scrubber, comprising:

[0006] The cap body is placed on the cleaning head housing;

[0007] A pressure rib is provided on the pressure cap body, protruding towards the cleaning roller and abutting against it;

[0008] A guide bar is provided on the pressure cap body, protruding toward and abutting against the cleaning roller;

[0009] A locking mechanism is provided on the pressure cap body to lock / unlock the pressure cap body to the cleaning head housing;

[0010] The pressure ribs and guide strips form a water trough on the pressure cover body, and a filter element is installed in the trough. The two ends of the trough are respectively connected to the clean water tank and the wastewater tank of the floor scrubber.

[0011] In one embodiment, the locking mechanism includes a pair of elastic locking plates disposed on both sides of the pressure cap body, and a pair of first snap-fit ​​holes corresponding to the elastic locking plates are provided on the end walls of the cleaning head housing.

[0012] Furthermore, the locking mechanism also includes an elastic locking rod assembly located on the inner side of the top wall of the pressure cap body, which can extend and retract to both sides of the pressure cap body simultaneously. Each end of the elastic locking rod assembly is provided with a locking tongue, and the two end walls of the cleaning head housing are provided with a pair of second snap-fit ​​holes corresponding to the locking tongues.

[0013] In one embodiment, the reinforcing rib is integrally formed with the cover body, or is detachably connected to the cover body.

[0014] In one embodiment, the guide strip is integrally formed with the cap body, or is detachably connected to the cap body.

[0015] In one embodiment, the filter element is integrally formed with the cap body.

[0016] In one embodiment, one end of the filter element is disposed on the cap body, and the other end abuts against the roller.

[0017] In one embodiment, one end of the filter element is connected to the pressure rib.

[0018] In one embodiment, the filter element extends from the pressure rib toward the guide bar, a gap is left between the filter element and the cleaning roller, and the filter element is detachably connected to the pressure rib.

[0019] In one embodiment, the extended end of the filter element is provided with a hook that extends in the opposite direction to the normal of the surface of the roller assembly, and the foremost surface of the hook has a gap with the vertical surface of the guide strip.

[0020] In one embodiment, the filter element has a plurality of mesh openings evenly distributed on it to isolate solid waste with a particle size larger than the mesh opening size.

[0021] In a second aspect, the present invention also provides a cleaning head assembly, comprising:

[0022] The gland assembly as described in the first aspect;

[0023] The cleaning head housing has two end walls that hold a cleaning roller capable of scrubbing the floor, and each end wall is provided with a water flow channel connecting to the water tank of the pressure cap assembly;

[0024] The cleaning roller is clamped between the two end walls of the cleaning head housing and includes a drive motor mounted on one end wall and a cleaning roller sleeved on the output end of the drive motor.

[0025] The water tank assembly, which can be installed and removed from one end wall of the cleaning head housing, includes a clean water tank and a wastewater tank connected to the water tank of the pressure cap assembly;

[0026] The cap assembly is detachably fitted onto the cleaning head housing.

[0027] Thirdly, the present invention also provides a floor scrubbing machine that includes the cleaning head assembly described in the second aspect.

[0028] This invention provides a cap assembly, a cleaning head assembly, and a floor scrubber. The cap assembly includes a cap body, a pressure rib, a guide strip, and a locking mechanism. The cap body covers the cleaning head housing. The pressure rib and guide strip are both disposed on the cap body and abut against the cleaning roller of the floor scrubber. The locking mechanism is disposed on the cap body to lock / unlock the cap body from the cleaning head housing. A water tank is formed on the cap body by the pressure rib and guide strip, and a filter is disposed within the water tank. The two ends of the water tank are connected to the clean water tank and the wastewater tank of the floor scrubber, respectively. After the floor scrubber has been used for a period of time, a certain amount of large particles or sticky debris accumulates in the water tank. The user can easily remove the entire cap assembly to thoroughly clean the water tank.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. A filter element is installed between the pressure ribs and the guide strips, making full use of the limited space of the cleaning head assembly and the space of the water tank in the height direction to achieve the filtration function.

[0031] 2. Wastewater can be filtered through the filter element to prevent large particles of debris brought into the water tank by the cleaning roller and undissolved particles of debris in the wastewater from clogging the wastewater channel leading to the wastewater tank, thereby avoiding water leakage during the use of the floor scrubber.

[0032] 3. Since the filtration function of the external filtration device is realized inside the water tank, the pipeline connection between the filtration device and the water tank and sewage tank is eliminated, further optimizing the sewage channel pipeline and improving the efficiency of the manufacturing process of the floor scrubbing machine.

[0033] 4. After the floor scrubber has been used for a period of time, a certain amount of large particles or sticky debris will accumulate in the water tank. Users can easily remove the entire pressure cap assembly to thoroughly clean the water tank.

[0034] 5. The pressure ribs and guide strips are no longer constrained by the structure of the cleaning head housing. The cover assembly, which includes the pressure ribs and guide strips, can be easily separated from the cleaning head housing through a locking mechanism. Users can choose cover assemblies with different shapes of pressure ribs and guide strips according to different usage scenarios. After a period of use, when the pressure ribs and guide strips have worn to a certain extent, it is only necessary to remove the cover assembly to replace the pressure ribs and guide strips or replace the entire cover assembly. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a perspective view of the cleaning head assembly of the present invention;

[0037] Figure 2 This is a schematic diagram of the cap assembly of the present invention being installed on the cleaning head housing;

[0038] Figure 3 for Figure 1 Planar view from direction A;

[0039] Figure 4 for Figure 1 Planar view from direction B;

[0040] Figure 5 for Figure 1 A partial section view from the center C direction;

[0041] Figure 6 for Figure 3 Enlarged view of a section at point D.

[0042] Figure 7 for Figure 4 Enlarged view of a section at point E in the middle.

[0043] Figure 8 Front view of the cleaning head housing;

[0044] Figure 9 for Figure 8 Planar view along the G direction;

[0045] Figure 10 This is another embodiment of the capping assembly of the present invention. Figure 4 Enlarged view of a section at point E in the middle;

[0046] Figure 11 This is a partially enlarged view of another embodiment of the capping assembly of the present invention, viewed from outside the groove to inside the groove;

[0047] Figure 12 This is a perspective view of a water-sealing and ventilating cover according to another embodiment of the capping assembly of the present invention;

[0048] Figure label:

[0049] Cleaning head housing 1;

[0050] First end wall 11, sewage outlet 112, first snap-fit ​​hole 114, second snap-fit ​​hole 115;

[0051] Second end wall 12, clear water outlet 121;

[0052] Capping assembly 2;

[0053] The pressure cap body 20, pressure rib 21, guide strip 22, filter element 23, mesh 231; elastic locking piece 24, second snap tongue 25, water tank open space 27, filter element extension 28, filter element extension hook 281, filter element extension connection 282.

[0054] Large particle waste containment area J;

[0055] Semi-humid region F;

[0056] Water-sealing and ventilating cover 26, cover plate 261, sealing eaves 262, observation window 263;

[0057] Brush component 3;

[0058] Cleaning roller 4, drive motor 4a, wiping layer 41;

[0059] Water tank assembly 5, clean water tank 51, wastewater tank 52;

[0060] Shovel assembly 6;

[0061] Waste collection component 7. Implementation

[0062] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0063] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0064] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0065] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0066] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0067] The following will describe the scheme of this application in detail with reference to the accompanying drawings.

[0068] As analyzed in the background section of this application, the wastewater tank of existing floor scrubbers is prone to clogging. To solve the above-mentioned technical problem, therefore, as follows... Figures 1 to 7As shown, in a first aspect, embodiments of the present invention provide a cover assembly 2 for covering the cleaning roller 4 of a floor scrubber, comprising a cover body 20, a pressure rib 21, a guide strip 22, and a locking mechanism (not shown in the figures). The cover body 20 covers the cleaning head housing 1; the pressure rib 21 is disposed on the cover body 20, protruding toward and abutting against the cleaning roller; the guide strip 22 is disposed on the cover body 20, protruding toward and abutting against the cleaning roller; the locking mechanism is disposed on the cover body 20 to lock / unlock the cover body 20 from the cleaning head housing; wherein, the pressure rib 21 and the guide strip 22 form a water trough (not shown in the figures) on the cover body 20, a filter element 23 is disposed in the water trough, one end of the water trough is connected to the clean water tank 51 of the floor scrubber, and the other end is connected to the wastewater tank 52 of the floor scrubber.

[0069] The pressure cap assembly 2 provided in this embodiment is installed on the cleaning head housing 1 of the floor scrubber to cover the cleaning roller 4 of the floor scrubber. It includes a pressure cap body 20, a pressure rib 21, and a guide strip 22. The pressure rib 21 and the guide strip 22 are both provided on the pressure cap body 20 to form a water groove. The guide strip 22 is used to prevent the sewage squeezed out from the cleaning roller 4 from flowing into the waste collection assembly 7. After the pressure cap assembly 2 is installed on the cleaning head housing 1 of the floor scrubber, the pressure rib 21 and the guide strip 22 abut against the cleaning roller 4 installed in the cleaning head housing 1. The pressure rib 21 is used to squeeze out excess water from the cleaning roller 4, and the guide strip 22 is used to prevent the sewage squeezed out from the cleaning roller 4 from flowing into the waste collection assembly 7. When the cleaning roller 4 cleans the ground, the pressure rib 21 contacts the cleaning roller 4 and squeezes the cleaning roller 4. At the same time, the filter element 23 provided between the pressure rib 21 and the guide strip 22 can filter the particles in the sewage to prevent the sewage from entering the sewage tank, thereby avoiding the clogging of the sewage tank. The cap assembly 2 also includes a locking mechanism on the cap body 20. When the user needs to remove the entire cap assembly 2 for maintenance and cleaning, the cap assembly 2 can be easily removed from the cleaning head housing 1 by simply releasing the lock. When it needs to be installed back on the cleaning head housing 1, the cleaning head housing 1 can be securely closed by multiple locking points. Even if the pressure rib 21 and guide strip 22 squeeze the cleaning roller 4 at the same time, it will not affect the closing stability of the cap assembly 2 and the cleaning head housing 1.

[0070] In this embodiment, the filter element 23 set between the pressure rib 21 and the guide strip 22 is mainly used to filter sewage and prevent particles in the sewage from flowing into the sewage tank of the floor scrubber. That is to say, the filter element 23 can be set between the pressure rib 21 and the guide strip 22 and located before the sewage tank inlet. Its specific actual position can be selected according to the actual application. This embodiment does not make specific limitations.

[0071] In some embodiments, the locking mechanism includes a pair of elastic locking plates 24 disposed on both sides of the pressure cap body 20. The elastic locking plates 24 are provided with a first locking tongue (not shown in the figure). The two end walls (first end wall 11 and second end wall 12) of the cleaning head housing 1 are provided with a pair of first locking holes 114 corresponding to the elastic locking plates 24.

[0072] In this embodiment, a pair of elastic locking pieces 24 are provided at the elastic contact points between the two end walls (first end wall 11 and second end wall 12) on both sides of the pressure cap body 20. The elastic locking pieces 24 can be spring pieces made of other materials that are typically understood by those skilled in the art to snap onto both sides of the pressure cap body 20. The elastic locking pieces 24 can also be hooks that are injection molded together with the pressure cap body 20 and can produce a certain elastic deformation. The elastic locking pieces 24 are provided with a first locking tongue. The two end walls of the cleaning head housing 1 are provided with a pair of first locking holes 114 corresponding to the elastic locking pieces 24. The specific forms of the first locking tongue and the first locking holes 114 are not limited by the specific application, as long as they can achieve a smooth and stable locking between the two. The elastic locking pieces 24 on both sides of the cap body 20 are designed to allow users to easily align the cap assembly 2 with the position where it needs to be closed on the cleaning head housing 1. After the cap is closed, the user can hear a crisp click or feel a slight vibration when the cap is closed, which helps to remind the user that the cap assembly 2 has been closed.

[0073] In some embodiments, the locking mechanism further includes an elastic locking rod assembly (not shown in the figure) provided on the inner side of the top wall of the pressure cap body 20, which can extend and retract to both sides of the pressure cap body simultaneously. Each end of the elastic locking rod assembly is provided with a locking tongue (second locking tongue 25). The two end walls (first end wall 11 and second end wall 12) of the cleaning head housing are provided with a pair of second locking holes 115 corresponding to the locking tongue.

[0074] In this embodiment, the inner side of the top wall of the cap body 20 is provided with an elastic locking rod assembly (not shown in the figure) that can extend and retract to both sides of the cap body 20 simultaneously. Each end of the elastic locking rod assembly has a locking tongue (second locking tongue 25). The extension or retraction of the two locking tongues can be controlled by two elastic buttons located in the recessed area at the top of the cap body 20. The two end walls of the cleaning head housing 1 are provided with a pair of second locking holes 115 corresponding to the locking tongues. When the user needs to close the cap assembly 2 onto the cleaning head housing 1, in addition to the automatic locking of the aforementioned elastic locking piece 24, another step requires the user to continue pressing down on the cap assembly 2 until the two locking tongues of the elastic locking rod assembly automatically pop out under elastic action and lock into the second locking holes 115 on both end walls. Only then is the cap assembly 2 closing action reliably completed. Figure 2As shown, the two latches of the elastic locking rod assembly are wider than the first latch in the width direction and also higher than the first latch in the height direction. Simply put, the second latch 25, after being engaged, can withstand much greater impact forces in all directions than the first latch. The reliable and stable locking force that truly provides the cap assembly 2 to close onto the cleaning head housing 1 mainly comes from the second latch 25 of the elastic locking rod assembly. When the user needs to remove the cap assembly 2, they first need to press the two elastic buttons at the recessed top of the cap body 20 to control the retraction of the two latches, and then they can simply lift the entire cap assembly 2 upwards with force.

[0075] In some embodiments, the pressure rib 21 is integrally formed with the pressure cap body 20, or is detachably connected to the pressure cap body 20.

[0076] In this embodiment, as Figures 2 to 7 , Figure 10 As shown, during the manufacturing process, the pressure cap body 20 can be molded to form several protrusions on its surface. These protrusions can directly serve as pressure ribs 21 for pressing the cleaning roller 4. The structure of the end of the pressure rib 21 that elastically abuts against the cleaning roller 4 matches the structure of the cleaning roller 4, that is, the end of the pressure rib 21 that abuts against the cleaning roller 4 can be an arc-shaped end. Of course, the end of the pressure rib 21 that abuts against the cleaning roller 4 can be a non-arc-shaped end, such as a serrated end, a polygonal end, etc., which is not specifically limited in this embodiment. Preferably, the pressure rib 21 is a straight line with a single cross-sectional shape and is parallel to the axis of the cleaning roller 4. Furthermore, the pressure rib 21 can be tightened towards the inside of the water tank near the two end walls (not shown in the figure) to prevent water leakage from the entire cleaning head assembly due to excessive water pressure at the elastic abutment point between the water tank and the end wall when the entire cleaning head assembly is tilted towards the axial side of the cleaning roller 4. The term "tightening" has two meanings. The first meaning is that the pressure rib 21 tightens in the direction of narrowing the width of the water tank. The second meaning is that the pressure rib 21 extends in the direction of the axis of the cleaning roller 4 to increase the amount of interference fit for elastic contact. This dual meaning of "tightening in the direction of the water tank" can further improve the water tank's ability to prevent leakage when used at any angle.

[0077] In this embodiment, during the manufacturing process, the pressure cap body 20 can be molded to pre-reserve an interface for installing the pressure rib 21 on its surface. This interface, along with appropriate fasteners, allows for a detachable connection between the pressure rib 21 and the pressure cap body 20. The structure of the end of the pressure rib 21 that elastically abuts against the cleaning roller 4 matches the structure of the cleaning roller 4; that is, the end of the pressure rib 21 that abuts against the cleaning roller 4 can be either curved or non-curved. After a period of use, the pressure rib 21, due to its continuous elastic contact with the wiping layer 41 of the cleaning roller 4 during operation, will experience a certain degree of wear on both the pressure rib 21 and the wiping layer 41. Excessive wear will severely affect the cleaning efficiency of the entire floor scrubber. The cleaning roller 4 itself is designed as a consumable material and should be replaced after a period of use. However, because the hardness of the pressure rib 21 is much higher than that of the wiping layer 41, it usually experiences very little wear. However, over time, some wear will accumulate. When the wear reaches a certain point and no matter how many times the cleaning roller 4 is replaced, the initial cleaning efficiency of the floor scrubber cannot be achieved, then the pressure rib 21 should be replaced. Of course, the material used to manufacture the pressure rib 21 is not limited to non-metallic materials such as hard plastics. Moderately cost-effective hard metal materials can also be used to manufacture the pressure rib 21, such as aluminum alloy, magnesium alloy, magnesium-aluminum alloy, zinc alloy, and stainless steel. Regarding the interface form used when the pressure rib 21 is installed onto the pressure cover body 20, those skilled in the art can use common methods such as planar stepped structures, grooved or protruding interface structures, etc. This embodiment does not impose specific limitations.

[0078] In some embodiments, the guide strip 22 is integrally formed with the cover body 20, or is detachably connected to the cover body 20.

[0079] In this embodiment, during the manufacturing process, the cap body 20 can be molded to form several protrusions on its surface. These protrusions can also directly serve as guide strips 22 to prevent sewage squeezed out from the wiping layer 41 of the cleaning roller 4 from flowing into the waste collection assembly 70. The structure of the end of the guide strip 22 that elastically abuts against the cleaning roller 4 can also match the cleaning roller 4, that is, the end of the guide strip 22 that abuts against the cleaning roller 4 can be an arc-shaped end. Preferably, in order to increase the ability of the guide strip 22 to suppress the liquid being thrown outward by the cleaning roller 4 during high-speed rotation, the end of the guide strip 22 that elastically abuts against the wiping layer 41 can be configured as a crescent-shaped end (not shown in the figure) that abuts against the wiping layer 41 at both ends and arches outward from the wiping layer 41 at the middle. This crescent-shaped end has two pointed parts (not shown in the figure) that elastically abut against the wiping layer 41. Of course, to further reduce the resistance of the cleaning roller 4 during high-speed rotation, the guide strip 22 can elastically abut against the toothed end of the wiping layer 41, or only the pointed end near the pressure rib 21 can elastically abut against the wiping layer 41. The other pointed end can facilitate the brush assembly 3 in the cleaning head assembly to directionally throw the brushed solid and sticky waste to the waste collection assembly 7 during high-speed rotation, preventing the brush assembly from throwing the waste back onto the surface of the wiping layer 41 after one rotation. Of course, the end of the guide strip 22 that elastically abuts against the wiping layer 41 can also be designed in any shape that can achieve the above function, such as sickle-shaped or wedge-shaped, and this embodiment does not make a specific limitation.

[0080] In this embodiment, as Figures 3 to 7 , Figure 10 As shown, during the manufacturing process, the pressure cap body 20 can be molded to pre-reserve an interface for installing the guide strip 22 on its surface. This interface, along with relevant fasteners, allows for a detachable connection between the guide strip 22 and the pressure cap body 20. The guide strip 22 can also directly serve as a component to prevent wastewater squeezed out from the wiping layer 41 of the cleaning roller 4 from flowing into the waste collection assembly 7. The specific structure of the end of the guide strip 22 that elastically abuts against the cleaning roller 4 can be consistent with that described in the previous embodiment, and will not be repeated here. Figures 2 to 6 , Figure 10As shown, the pressure cap body 20 has a locking groove (not shown in the figure) for locking the guide strip 22 on the inner side facing the cleaning roller 4 and located between the pressure rib 21 and the brush assembly 3. The guide strip 22 has a locking end (not shown in the figure) at the other end facing away from the cleaning roller 4, which elastically engages with the locking groove. Preferably, the two side walls where the locking end elastically engages with the locking groove have elastic barb structures (not shown in the figure). These elastic barb structures make it easy for the user to easily lock the locking end into the locking groove when replacing the guide strip 22. Preferably, the guide strip 22 is a straight line with a single cross-sectional shape and is parallel to the axis of the cleaning roller 4. Furthermore, the guide strip 22 can be tightened towards the inside of the water tank near the two end walls to prevent water leakage from the entire cleaning head assembly due to excessive water pressure at the elastic contact point between the water tank and the end wall when the cleaning roller 4 is tilted on the axial side facing the cleaning roller 4. The term "tightening" has two meanings, which are the same as the meaning of "tightening at both ends" of the pressure rib 21 discussed in the previous embodiment, and will not be repeated here.

[0081] In some embodiments, one end of the filter element 23 is connected to the pressure rib 21.

[0082] In this embodiment, the filter element 23 is detachably connected to the end of the pressure rib 21 that abuts against the cleaning roller 4 and to the side facing the guide strip 22. The lower surface of the filter element 23 extends along the surface of the roller assembly to the guide strip 22. The filter element 23 can filter large particles of debris and undissolved particles of debris in the sewage brought into the water tank by the cleaning roller 4. Over time, some sticky debris will inevitably accumulate on the upper and lower surfaces of the filter element 23. The detachable design of the filter element 23 allows the user to remove the filter element 23 for thorough cleaning at regular intervals when a simple high-water rinsing mode is no longer sufficient, thus maintaining a healthy and hygienic home environment.

[0083] In some embodiments, such as Figures 4 to 6 As shown, the filter element 23 extends from the side of the pressure rib 21 toward the guide strip 22, and there is a gap between the lower surface of the filter element 23 and the surface of the cleaning roller 4. The filter element 23 is detachably connected to the pressure rib 21.

[0084] In this embodiment, the filter element 23 is detachably connected to the end of the pressure rib 21 that abuts against the cleaning roller 4 and to the side facing the guide strip 22. A gap is left between the lower surface of the filter element 23 and the upper surface of the wiping layer 41 of the cleaning roller 4, and the filter element 23 extends to the guide strip 22. The gap between the lower surface of the filter element 23 and the upper surface of the wiping layer 41 (not shown in the figure) allows the wastewater squeezed out by the pressure rib 21 in the gap space to further flush the upper surface of the wiping layer 41, and prevents fine particulate debris from accumulating on the lower surface of the filter element 23. On the other hand, the gap space allows air to circulate in the space, so that even when the floor scrubber is not working, the debris deposited in the space will not smell due to prolonged closure. The filter element 23 has the functions described in the previous embodiments, which will not be repeated here.

[0085] Furthermore, in this embodiment, as Figures 4 to 6 As shown, the extended end of the filter element 23 (not shown in the figure) is provided with a hook (not shown in the figure) extending in the opposite direction to the normal of the surface of the roller assembly, and the foremost surface of the hook has a gap with the vertical surface of the guide strip 22 (not shown in the figure).

[0086] In this embodiment, the hook portion of the filter element 23 extends away from the normal direction of the roller assembly surface to form a filter element extension hook portion 281. When the user mops a floor with standing water using a floor scrubber, if the flow of wastewater generated in the water tank when the water sucked up by the cleaning roller 4 is squeezed out by the pressure rib 21 is too large, the filter element extension hook portion 281 can prevent the wastewater from overflowing the top of the filter element extension hook portion 281 extending away from the normal direction of the roller assembly surface. This forces the squeezed-out wastewater to be filtered by the filter element 23 before it can be guided to the wastewater outlet 112 at one end of the water tank and then further transported to the wastewater tank 52, thereby preventing the wastewater from bypassing the filter element 23 and causing the wastewater channel to be blocked. Figures 5 to 7 , Figure 11 As shown, the filter element extension hook 281 extends in a direction parallel to the upper surface of the wiping layer 41 until it connects with the guide strip 22. The portion between the filter element extension hook 281 and the guide strip 22 is called the filter element extension connection portion 282. The filter element extension connection portion 282 reliably connects the filter element extension hook 281 and the guide strip 22. Of course, not all the opposing portions of the filter element extension hook 281 and the guide strip 22 need to be reliably connected. The filter element extension connection portion 282 can connect the opposing portions of the filter element extension hook 281 and the guide strip 22 at intervals along the axial direction of the cleaning roller 4. This interval forms the water tank open area 27 of the water tank. The filter element extension hook 281 and the filter element extension connection portion 282 are collectively referred to as the filter element extension portion 28. Figure 11As shown, there is a gap between the foremost surface of the filter element extension hook 281 and the vertical surface of the guide strip 22. We call this vertical gap space the large particle waste containing area J. This allows a small amount of large particles of waste brought up by the cleaning roller 4 and not brushed off by the brush to be rolled into the water tank. This gap space can often accommodate these large particles of waste being constantly turned over and "stayed" here. When the gap between the lower surface of the filter element 23 and the wiping layer 41 is smaller than the diameter of the large particles of waste, these large particles of waste are turned over and brought to the water tank open area 27, which makes the volume of the gap space gradually increase. They are freely "restricted" in this space and will not be stuck in the narrow gap between the lower surface of the filter element 23 and the wiping layer 41 for a long time. Moreover, once large particles of waste are stuck in the gap between the lower surface of the filter element 23 and the wiping layer 41, the large particles of waste are easy to scratch the surface of the wiping layer 41, thereby shortening the service life of the cleaning roller 4.

[0087] In some embodiments, such as Figures 2 to 12 As shown, the filter element 23 is integrally formed with the cap body 20.

[0088] Similarly, the protrusion formed during the manufacturing process of the cap body 20 can also serve as a filter element 23 for filtering particulate waste in sewage. When the cleaning roller 4 is installed in the cleaning head housing 1, the protrusion also abuts against the cleaning roller 4. At the same time, the protrusion is provided with several mesh holes 231, and the sewage in the tank can be further filtered by the mesh holes 231. Only after the sewage is filtered can it be further transported to the sewage tank 52 through the sewage outlet 112 of the tank, thereby preventing the sewage channel from being blocked.

[0089] It should be noted that the mesh 231 on the filter element 23 can be formed during the molding process of the cap body 20, or it can be set by machining after the cap body 20 is molded. It can be selected according to the actual application, and this embodiment does not make specific limitations.

[0090] It should also be noted that the pressure rib 21, guide strip 22 and filter element 23 can be injection molded at the same time during the molding process of the cap body 20, or they can be molded sequentially by multiple injection molding processes. In other words, the pressure rib 21, guide strip 22, filter element 23 and cap body 20 can be molded as a single piece.

[0091] In some embodiments, one end of the filter element 23 is disposed on the cap body 20, and the other end abuts against the cleaning roller 4.

[0092] In this embodiment, the free end of the filter element 23 elastically abuts against the surface of the wiping layer 41 of the cleaning roller 4, which can further suppress the sewage thrown out in a direction during the high-speed rotation of the cleaning roller 4 and the sewage squeezed out by the pressure rib 21 from splashing in the water tank, so that the sewage can slowly flow out through the mesh 231 in the filter element 23 and the lower surface of the filter element 23. The outflowing sewage is further guided to the sewage outlet 112 of the water tank through the guide bar 22, and the sewage is further discharged to the sewage tank 52 through the sewage channel.

[0093] In some embodiments, the filter element 23 has a plurality of mesh openings 231 evenly distributed on it to isolate solid waste with a particle size larger than the mesh opening size.

[0094] In this embodiment, the mesh size 231 of the filter element 23 can be selected to have different mesh sizes depending on the usage scenario. Of course, if the filter element 23 is detachably connected to the pressure rib 21, the user can configure different filter elements 23 according to their actual floor scrubber usage habits and scenarios. If the user wants the floor scrubber to clean their home more thoroughly, they can choose a filter element 23 with a smaller mesh size, but deep cleaning of the filter element 23 will also need to be more frequent. Conversely, although the cleaning ability of the floor scrubber may be weaker, the frequency of cleaning the filter element 23 will be lower.

[0095] Furthermore, in some embodiments, such as Figure 2 , Figure 5 , Figure 6 , Figure 8 , Figure 9 As shown, the cleaning head housing also includes a first end wall 11 and a second end wall 12 for clamping the cleaning roller 4, wherein a clean water outlet 121 is provided in the water tank area on the second end wall 12, and a wastewater outlet 112 is provided in the water tank area on the first end wall 11.

[0096] In this embodiment, a clean water outlet 121 is provided on the second end wall 12 at one end of the water tank, and a sewage outlet 112 is provided on the first end wall 11 at the other end of the water tank. This facilitates the flow of clean water from the clean water tank 51 along the water tank. The clean water can penetrate into the surface of the wiping layer 41 of the cleaning roller 4 through the filter element 23. The surface of the wiping layer 41 is further scraped by the pressure ribs 21, thereby flushing out the fine particles of garbage mixed in the wiping layer 41 with clean water and replacing the sewage. Then, the sewage is further guided to the sewage outlet 112 along the water tank and the upper surface of the guide strip 22. Finally, the sewage is discharged to the sewage tank 52 through the sewage channel.

[0097] Furthermore, in some embodiments, such as Figure 11 As shown, the clean water outlet 121 is not directly opposite the sewage outlet 112 in the water outlet direction.

[0098] In this embodiment, as Figure 5 As shown, a clean water outlet 121 is provided on the second end wall 12 at one end of the water tank. This outlet 121 is positioned above the upper surface of the filter element 23, facilitating the flow of clean water from the clean water tank 51 along the upper surface of the filter element 23. Furthermore, the clean water outlet 121 can be circular, making it easier to select a circular pipe connector for connecting the clean water channel pipeline. Alternatively, the outlet 121 can be rectangular; appropriate pipe connectors can be selected to facilitate the connection of the clean water channel pipeline. Figure 6 , Figure 9 As shown, a sewage outlet 112 is provided on the first end wall 11 at the other end of the water tank. This sewage outlet 112 is positioned above the upper surface of the filter element 23 and covers the entire width of the water tank. This reduces the resistance to sewage flow into the sewage channel due to the small pipe diameter, allowing the sewage to flow more smoothly. This facilitates the easy and convenient discharge of sewage from the wiping layer 41 into the sewage channel after it flows along the upper surface of the filter element 23. Figure 11 As shown, combined with Figure 5 , Figure 6 , Figure 9 Let's take a look. The clean water outlet 121 is not directly aligned with the wastewater outlet 112 in the water outlet direction. This prevents the clean water just flowing from the clean water outlet 121 from flowing directly into the wastewater outlet 112 along the upper surface of the filter element 23. Ideally, all the clean water should pass through the filter element 23 and undergo a water exchange process with the wiping layer 41, thereby removing fine particulate matter trapped inside the wiping layer 41. This design, where the clean water outlet 121 is not directly aligned with the wastewater outlet 112, results in a higher efficiency in water exchange between clean and wastewater.

[0099] Of course, the clean water outlet 121 and / or the wastewater outlet 112 can also be set below the lower surface of the filter element 23. This solution provides more direct rinsing of the surface of the wiping layer 41. However, with this solution, it is more difficult to control the dryness of the floor after the floor is mopped and swept. Simply put, the floor will be more wet. Users can selectively adjust the positions of the clean water outlet 105 and the wastewater outlet 106 at both ends of the water tank according to their own usage scenarios.

[0100] In some embodiments, such as Figures 5 to 7As shown, the pressure rib 21, the guide strip 22, the upper surface of the cleaning roller 4 located between the pressure rib 21 and the guide strip 22, and the two end walls together form the water tank. A filter element 23 is provided in the water tank, and the water tank is divided into a wetted area (not shown in the figure) and a semi-wetted area F by the filter element 23. The wetted area is formed by the pressure rib 21, the guide strip 22, the upper surface of the cleaning roller 4 between the pressure rib 21 and the guide strip 22, the lower surface of the filter element 23, and the two end walls. During the operation of the floor scrubber, regardless of the water flow rate in the water tank, the wetted area is always wet, naturally... This makes it easy for sticky debris to accumulate. The semi-wet zone F is formed by the upper surfaces of the pressure rib 21, the guide strip 22, and the filter element 23, the lower surface of the top wall of the pressure cap body located between the pressure rib 21 and the guide strip 22, and the two end walls. During the operation of the floor scrubber, the water pump of the floor scrubber intermittently sprays water from the clean water tank 51 into the water tank. When the water flow is not large, most areas of the side walls of the pressure rib 21, the side walls of the guide strip 22, and the top wall of the pressure cap body in the semi-wet zone F are dry. At this time, only the upper surface of the filter element 23 has the opportunity to be wet, and only the upper surface of the filter element 23 is relatively easy to accumulate sticky debris. In daily use, if a certain amount of sticky debris accumulates in the wet zone and the semi-wet zone F, it will affect the cleaning efficiency of the floor scrubber. The user needs to remove the pressure cap assembly 2 and clean the wet zone and the semi-wet zone F in time.

[0101] In some embodiments, the filter element 23 is disposed at one end of the water tank near the wastewater tank 52. Specifically, by disposing of the filter element 23 at one end of the water tank near the wastewater tank, the amount of unfiltered wastewater flowing into the wastewater tank from the end of the cleaning roller 4 near the wastewater tank inlet can be reduced.

[0102] In some embodiments, the filter element 23 is arranged parallel to the pressure rib 21 and the guide strip 22, respectively. That is, the filter element 23 is not connected to the pressure rib 21 and the guide strip 22. The filter element 23 divides the water trough formed between the guide strip 22 and the pressure rib 21 into two water troughs. The water trough near the guide strip 22 is connected to the wastewater tank 52. When the pressure rib 21 squeezes the cleaning roller 4, excess water on the cleaning roller 4 flows through the filter element 23 into the water trough formed between the filter element 23 and the guide strip 22, and then into the wastewater tank 52.

[0103] In some embodiments, such as Figures 3 to 7 , Figure 10As shown, the distance between the end of the pressure rib 21 near the cleaning roller 4 and the end near the pressure cap body 20 is greater than the distance between the end of the guide strip 22 near the cleaning roller 4 and the end near the pressure cap body 20. Simply put, the pressure rib 21 presses the wiping layer 41 more deeply, while the guide strip 22 presses the wiping layer 41 less deeply. This design makes it easier for the pressure rib 21 to scrape and squeeze the wiping layer 41 to discharge wastewater, while the guide strip 22 more easily and elastically abuts against the wiping layer 41 to guide the squeezed-out wastewater towards the wastewater outlet 112.

[0104] In some embodiments, such as Figures 10 to 12 As shown, the top of the pressure cap body 20 has an opening (not shown in the attached figure) directly opposite the water tank. The pressure cap assembly 2 also includes a sealing cap connected to the top opening of the pressure cap body 20, forming a water-sealing and venting cover 26. This water-sealing and venting cover 26 includes a cover plate 261 and a sealing edge 262. The cover plate 261 also has an observation window 263. The sealing edge 262 of the water-sealing and venting cover 26 covers the top opening of the pressure cap body 20. When the user drags the cleaning head assembly to mop the floor, to prevent the clean water and wastewater in the water tank from being agitated and spilling onto the floor, the water-sealing and venting cover 26 has sealing edges 262 below the cover plate 261, which seal the top opening of the pressure cap body 20. When the user needs to further clean the water tank after using the floor scrubber for a period of time, the user can open the water-sealing and venting cover 26 to rinse the inside of the water tank. The observation window 263 is transparent, so users can directly see the flow of clean water and sewage inside the water tank through the observation window 263 without having to remove the water-sealing and venting cover 26 one by one.

[0105] Secondly, such as Figures 1 to 4 As shown, the present invention also provides a cleaning head assembly, which includes the cap assembly 2, cleaning head housing 1, cleaning roller 4, and water tank assembly 5 as described in the first aspect. The cleaning head housing 1 has a first end wall 11 and a second end wall 12 for clamping the cleaning roller 4. Both end walls are provided with water flow channels connecting the water tank of the cap assembly. The cleaning roller 4 is clamped between the two end walls of the cleaning head housing. The cleaning roller 4 includes a drive motor 4a mounted on one end wall and a cleaning roller (not shown in the figure) sleeved on the output end of the drive motor. The outer surface of the cleaning roller is sleeved with a wiping layer 41. The water tank assembly 5 can be installed and removed from one end wall of the cleaning head housing 1 and includes a clean water tank 51 and a wastewater tank 52 connected to the water tank of the cap assembly. The cap assembly 2 is detachably fitted onto the cleaning head housing 1.

[0106] Specifically, the cleaning head assembly includes a cleaning head housing 1, a drive motor 4a mounted on one end wall of the cleaning head housing 1, a cleaning roller 4 sleeved on the drive motor 4a, a water tank assembly 5 that can be installed and removed from one side of the cleaning head housing 1, a shovel assembly 6 that can be slidably installed and removed from the bottom of the cleaning head housing 1 to guide the garbage to be lifted by the cleaning roller 4, and a brush assembly 3 installed inside the cleaning head housing 1 and synchronously driven by the cleaning roller 4. The drive motor 4a drives the cleaning roller 4 to rotate, thereby synchronously driving the brush assembly 3 to rotate. The brush assembly 3 is used to brush and sweep the solid and sticky garbage lifted by the cleaning roller 4.

[0107] Thirdly, the present invention also provides a floor scrubbing machine, which includes the cleaning head assembly described above and a handle (not shown in the figure), wherein the handle is fixedly connected to the cleaning head assembly.

[0108] Specifically, the floor scrubber provided in this application operates as follows: When the floor scrubber is turned on, the drive motor 4a starts working, and the water system operates simultaneously. When the drive motor 4a rotates, it drives the cleaning roller 4 to rotate, thereby driving the brush assembly 3 to rotate. After the water system is working, clean water is delivered to the surface of the cleaning roller 4 through the clean water tank 51 of the water tank assembly 5 and the clean water pipes (not shown in the attached diagram), wetting the surface of the cleaning roller 4. Simultaneously, the wiping layer 41 of the cleaning roller 4 performs rolling cleaning of the floor. The scraper assembly 6 is slidably mounted on the cleaning head housing 1 and closely follows the cleaning roller 4. The waste collection component 7 is located behind the cleaning roller 4 and below the brush component 3. When the wiping layer 41 of the cleaning roller 4 rolls and cleans the ground, the waste on the ground is scooped up by the shovel component 6. Through the gap between the shovel component 6 and the wiping layer 41 of the cleaning roller 4, and through the friction of the wiping layer 41, the waste is carried into the waste collection component 7. At the same time, the brush component 3 contacts the wiping layer 41 of the cleaning roller 4, and the brush component 3 sweeps away the waste remaining on the wiping layer 41 of the cleaning roller 4, sweeping the waste into the waste collection component 7, thus collecting the waste on the ground. In addition, when the floor scrubber is working, clean water is continuously supplied to the surface of the wiping layer 41 of the cleaning roller 4. The clean water after cleaning the wiping layer 41 of the cleaning roller 4 is replaced by wastewater through the filter 23. The wastewater enters the wastewater pipe (not shown in the attached figure) through the water tank and is transported to the wastewater tank 52 of the water tank component 5 for collection.

[0109] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A capping assembly for covering the cleaning roller of a floor scrubber, characterized in that, include: The cap body is placed on the cleaning head housing; The pressure rib is located on the pressure cap body, protruding towards the cleaning roller and abutting against it; The guide bar is located on the pressure cover body, protruding towards the cleaning roller and abutting against it. The pressure rib and the guide bar form a water trough on the pressure cover body. The two ends of the water trough are respectively connected to the clean water tank and the wastewater tank of the floor scrubber. The filter element is installed inside the water tank. The filter element extends from the pressure rib toward the guide bar. The extended end of the filter element has a hook that extends in the opposite direction to the normal of the roller assembly surface. The frontmost surface of the hook has a gap with the vertical surface of the guide bar. The water tank is divided into a wetted area and a semi-wetted area by the filter element. The part between the hook and the guide bar is the filter element extension connection part. The filter element extension connection part can connect the hook and the opposite part of the guide bar at intervals along the axial direction of the cleaning roller to form an open area of ​​the water tank. The locking mechanism is located on the pressure cap body and includes a pair of elastic locking plates on both sides of the pressure cap body. The cleaning head housing has a pair of first snap-fit ​​holes on both end walls corresponding to the elastic locking plates.

2. The capping assembly according to claim 1, characterized in that, The locking mechanism locks / unlocks the pressure cap body onto the cleaning head housing.

3. The capping assembly according to claim 2, characterized in that, The locking mechanism also includes an elastic locking rod assembly located on the inner side of the top wall of the pressure cap body, which can extend and retract to both sides of the pressure cap body simultaneously. Each end of the elastic locking rod assembly is provided with a locking tongue, and the two end walls of the cleaning head housing are provided with a pair of second locking holes corresponding to the locking tongues.

4. The capping assembly according to claim 1, characterized in that, The rib is integrally formed with the cover body, or is detachably connected to the cover body.

5. The capping assembly according to claim 1, characterized in that, The guide bar is integrally formed with the gland body, or it can be detachably connected to the gland body.

6. The capping assembly according to claim 1, characterized in that, The filter element and the gland body are integrally formed, or the filter element and the pressure rib are detachably connected.

7. The capping assembly according to claim 1, characterized in that, One end of the filter element is mounted on the gland body, and the other end abuts against the roller.

8. The capping assembly according to claim 1, characterized in that, One end of the filter element is connected to the pressure rib.

9. The capping assembly according to claim 1, characterized in that, A gap is left between the filter element and the cleaning roller.

10. The capping assembly according to claim 1, characterized in that, The gap between the frontmost surface of the hook and the vertical surface of the guide bar serves as a container for large particles of waste.

11. The capping assembly according to any one of claims 7-10, characterized in that, The filter element has several mesh holes evenly distributed on it to isolate solid waste particles larger than the mesh hole size.

12. A cleaning head assembly, characterized in that, include: The capping assembly as described in any one of claims 1-11; The cleaning head housing has two end walls that hold a cleaning roller capable of scrubbing the floor, and both end walls are provided with water flow channels for water tanks connected to the pressure cap assembly; The cleaning roller is clamped between the two end walls of the cleaning head housing, including a drive motor mounted on one end wall and a cleaning roller sleeved on the output end of the drive motor. The water tank assembly, which can be installed and removed from one end wall of the cleaning head housing, includes a clean water tank and a wastewater tank for the water trough connected to the pressure cap assembly; The cap assembly is detachably attached to the cleaning head housing.

13. A floor scrubbing machine, characterized in that, Includes the cleaning head assembly as claimed in claim 12.

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