Water extraction crossbeam and tow head housing

Abstract

This invention discloses a wringing beam and a mop head housing. The wringing beam connects to the two side walls of the floor scrubber mop head housing and is located above the cleaning roller. It includes a first beam, a second beam, and a connector. The first beam has a locking groove for engaging the water guide strip. The second beam has a wringing strip pointing towards the axis of the cleaning roller at one edge at its bottom. The connector connects the first beam and the second beam. The wringing beam and the left and right side walls of the floor scrubber mop head housing form a seamless whole at the top of the semi-cylindrical cleaning roller receiving area. The wringing beam has a multi-longitudinal beam structure along the axial direction of the S-shaped cross-section with sufficient width along the arc surface of the cylinder. The mop head housing includes a housing body and a quick-release top cover, and the wringing beam is provided on the housing body.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202311179042.1, entitled "A Water-Squeezing Beam and a Driving Head Housing", filed on September 11, 2023, the contents of which are incorporated herein by reference. Technical Field

[0002] This invention relates to the field of cleaning equipment technology, and in particular to a wringing beam and a tractor housing. Background Technology

[0003] 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 wastewater and removing it from the site. Floor scrubbers generally have two main technological branches, classified by cleaning methods and the flow path of small and large particles of debris. This type of technology is usually categorized as the air-dust circulation technology of floor scrubbers that uses negative pressure to suck up debris and dust from the ground. Recently, a new type of "water-dust circulation" floor scrubber has emerged. It uses a motor to drive cleaning rollers to wipe the floor. The cleaning rollers usually have a sponge cylinder structure. The cleaning ability of the floor cleaner is related to the thickness of the sponge layer of the cleaning roller; the thicker the sponge roller, the stronger its cleaning ability. The floor cleaner is also equipped with a water supply system and a water tank to clean the sponge layer of the cleaning roller. After the clean water rinses the sponge layer of the cleaning roller, the wastewater is squeezed out of the sponge layer of the cleaning roller by the squeezing strip set in the cleaner and guided into the wastewater chamber, thus perfectly cleaning the floor.

[0004] Currently, floor scrubbers using "water and dust circulation" technology typically have wringing strips that are either plastic strips directly injection-molded into the scrubber housing cover or metal strips that can be detachably installed on the scrubber housing. However, because the scrubber housing cover is detachably connected to the scrubber housing, it is easily loosened by external forces. This causes changes in the wringing depth of the strip, further affecting the scrubber's cleaning ability. While detachable metal wringing strips are directly installed on the scrubber housing, gaps still exist at the installation point. These gaps can easily trap dirt and grime after a period of use, leading to unpleasant odors and severely impacting the user experience. Furthermore, both integrated wringing strips and detachably connected metal strips reduce the strength of the cleaning head housing at the wringing strip level. This makes the wringing strip more prone to deformation when squeezing the cleaning roller, resulting in a shallower wringing depth and reduced cleaning ability.

[0005] Therefore, a new technical solution is needed to address these pressing technical problems. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a wringing beam for the casing of a floor scrubber, aiming to solve the technical problem that insufficient strength at the wringing strip of the floor scrubber easily leads to reduced cleaning ability. It also aims to solve the technical problem that dirt and grime can accumulate in the gap between the detachable wringing strip and the casing of the floor scrubber in existing technologies.

[0007] To solve the above-mentioned technical problems, in a first aspect, the present invention provides a wringing beam, which connects to the two side walls of the floor scrubber mop head housing and is located above the cleaning roller, comprising:

[0008] The first crossbeam is equipped with a snap-fit ​​groove for snapping in the water guide strip;

[0009] The second crossbeam has a water-squeezing strip at one edge of its bottom that points towards the center of the cleaning roller shaft;

[0010] Connector, connecting the first crossbeam and the second crossbeam;

[0011] The left and right walls of the wringer beam and the scrubber mop head housing form a seamless whole at the top of the semi-cylindrical cleaning roller receiving area. The wringer beam has a multi-longitudinal beam structure along the axial direction of the S-shaped cross-section with sufficient width along the arc surface of the cylinder.

[0012] In one or more alternative embodiments, the first crossbeam, the connector, and the second crossbeam are integrally formed together with the tractor housing, and the outer surface of one side of the first crossbeam, the upper surface of the connector, and the outer surface of one side of the second crossbeam together form a water-guiding filter groove.

[0013] In one or more alternative embodiments, the connector is Z-shaped and includes a bottom wall, a vertical wall, and an intermittent connecting wall connected in sequence, with a water seepage filter hole provided on the bottom wall.

[0014] In one or more alternative embodiments, the tractor housing includes a tractor housing body, on which the water-squeezing crossbeam is provided. During the manufacturing process, the tractor housing body is formed by a mold to form a plurality of protrusions at one edge at the bottom of the second crossbeam. These protrusions directly serve as water-squeezing strips for squeezing the cleaning roller. The structure of the end of the water-squeezing strip that elastically abuts against the cleaning roller matches that of the cleaning roller.

[0015] In one or more alternative embodiments, the squeezing strip is a straight strip with a single cross-sectional shape and is parallel to the axis of the cleaning roller, and the squeezing strip tightens towards the inside of the water tank near both end walls.

[0016] In one or more alternative embodiments, one of the two side walls used to hold the cleaning roller has a clean water outlet in the water guiding and filtering groove area on one side wall, and a wastewater outlet in the water guiding and filtering groove area on the other side wall.

[0017] In one or more alternative embodiments, the dewatering crossbeam further includes a water guide strip snapped into the snap-fit ​​groove, the water guide strip including an integrally formed snap-fit ​​portion that elastically snaps into the snap-fit ​​groove and a water guide portion that elastically abuts against the cleaning roller.

[0018] In one or more alternative embodiments, the water-guiding section has two pointed ends near the two ends of the cleaning roller, one of which has the highest point of the upper surface of the water-guiding section abutting against the cleaning roller.

[0019] In one or more alternative embodiments, the water-guiding section is used to guide the highest point of the upper surface of the wastewater to be lower than the lowest point of the lower surface of the squeezing strip.

[0020] In one or more alternative embodiments, the upper surface of the squeezing strip, the water guiding strip, the cleaning roller located between the squeezing strip and the water guiding strip, the lower surface of the connector, and the two side walls together form a flushing water trough. One end of the water guiding and filtering trough is connected to the clean water chamber in the floor scrubber mop head assembly, and the other end is connected to the wastewater chamber in the floor scrubber mop head assembly.

[0021] In one or more alternative embodiments, the bottom wall of the connector is disposed between the squeezing strip and the guiding strip.

[0022] In one or more alternative embodiments, during the manufacturing process, the tractor housing body is molded to leave an interface on its surface for installing a water guide strip. This interface enables a detachable connection between the water guide strip and the tractor housing body. The water guide strip directly serves to prevent wastewater squeezed out from the wiping layer of the cleaning roller from flowing into the waste collection assembly.

[0023] In one or more alternative embodiments, the tractor housing body has a snap-fit ​​groove for snapping a water guide strip on the inner side facing the cleaning roller and located between the wringer strip and the brush assembly. The water guide strip has a snap-fit ​​end on the other side away from the cleaning roller, and the snap-fit ​​end is elastically snapped into the snap-fit ​​groove.

[0024] In one or more alternative embodiments, the two side walls of the snap-fit ​​end that are elastically snapped into the snap-fit ​​groove are provided with an elastic barb structure.

[0025] In one or more alternative embodiments, the water guide strip is a straight line with a single cross-sectional shape and remains parallel to the axis of the cleaning roller.

[0026] In one or more alternative embodiments, the water guide strips tighten towards the inside of the water tank near both end walls.

[0027] 17. The squeezing beam as described in claim 10, characterized in that the highest point of the upper surface of the water guide strip used to guide the sewage is higher than the lowest point of the lower surface of the squeezing strip.

[0028] In one or more alternative embodiments, the middle portion between the two tips arches outward and detaches from the cleaning roller.

[0029] In one or more alternative embodiments, the connector extends toward the water guide strip on one side to form a bottom wall, with a gap between the lower surface of the bottom wall and the surface of the cleaning roller.

[0030] In one or more alternative embodiments, the connector has a vertical wall extending from the end of the bottom wall along the normal direction away from the surface of the cleaning roller, and the foremost surface of the vertical wall has a gap with the outer surface of the snap-fit ​​groove facing the squeezing strip, which is a large particle waste containment area.

[0031] In one or more alternative embodiments, the vertical wall of the connector is arranged parallel to the water guide strip, and the vertical wall of the connector divides the water groove formed between the water guide strip and the water squeezing strip into two water grooves.

[0032] On the side wall where the sewage outlet is located, there is also a second sewage outlet, which is the same as the other water tank. The water tank near the water guide bar is connected to the sewage tank. When the squeezing bar squeezes the cleaning roller, the excess water on the cleaning roller flows through the bottom wall of the connector into the water tank formed between the vertical wall of the connector and the water guide bar, and then flows into the sewage tank.

[0033] In one or more alternative embodiments, the first crossbeam is n-shaped and includes a first snap-fit ​​upright plate, a second snap-fit ​​upright plate, and a connecting plate that closes and connects the two snap-fit ​​upright plates. The first snap-fit ​​upright plate and the second snap-fit ​​upright plate are elastically snapped together with the snap-fit ​​part.

[0034] In one or more alternative embodiments, the upper surface of the connecting plate is provided with a plurality of through holes, and a plurality of screws pass through the through holes and are fastened to the snap-fit ​​portion.

[0035] In one or more alternative embodiments, the highest point of the vertical wall continues to be intermittently connected to the first horizontal beam to form an intermittent connecting wall, and an open space is provided between every two intermittent connecting walls, with the intermittent connecting walls and open spaces being alternately arranged in sequence.

[0036] In one or more alternative embodiments, the second crossbeam is U-shaped and includes a first reinforcing plate, a second reinforcing plate, and a connecting guide plate that closes and connects the two reinforcing plates. A cover plate is also provided on the upward opening formed by the two reinforcing plates.

[0037] In one or more alternative embodiments, the second crossbeam is in the shape of an inverted H and includes a first reinforcing plate, a second reinforcing plate, and a connecting guide plate that closes and connects the two reinforcing plates, with the downward opening formed by the two reinforcing plates pointing towards the cleaning roller.

[0038] In one or more alternative embodiments, the second crossbeam has an exhaust port on its side wall facing the outside of the tractor housing.

[0039] In one or more alternative embodiments, the top opening of the water guiding filter channel is further covered with a pressure cap to achieve a seal for the water guiding filter channel and the flushing water channel.

[0040] In one or more alternative embodiments, the distance between the end of the wringer near the cleaning roller and the end near the tractor housing body is greater than the distance between the end of the water guide bar near the cleaning roller and the end near the tractor housing body.

[0041] Secondly, this application also provides a tractor housing, including a housing body and a quick-release top cover, wherein the housing body is provided with a water-squeezing crossbeam as described in the first aspect.

[0042] This invention discloses a wringing beam for a floor scrubber mop head housing. The wringing beam includes a first beam, a second beam, and a connector connecting the two. The first beam has a locking groove for engaging a water guide strip. The second beam has a wringing strip pointing towards the axis of the cleaning roller at one of its bottom edges. The connector is Z-shaped, and its Z-shaped bottom wall has seepage filter holes. The first beam, connector, and second beam are integrally formed with the mop head housing. One outer surface of the first beam, the upper surface of the connector, and one outer surface of the second beam together form a water groove. This wringing beam enhances the ability of the wringing strip to resist the elastic abutment force from the axis of the cleaning roller.

[0043] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0044] In the first aspect, the integrated floor scrubber wringing beam of the present invention is integrally formed with the floor scrubber mop head housing. The left and right side walls of the wringing beam and the floor scrubber mop head housing form a whole at the top of the semi-cylindrical cleaning roller receiving area. The wringing beam has a multi-longitudinal beam structure along the axial direction of the S-shaped cross section with sufficient width along the arc surface of the cylinder, which enhances the strength of the entire wringing beam against the elastic contact force from the axis of the cleaning roller outward.

[0045] Secondly, the integrated floor scrubber wringing beam of the present invention integrates the functions of multiple components such as a cleaning tank, a filter device, a large particle waste holding space, and an air dissipation channel on a multi-longitudinal beam structure with an S-shaped cross-section that forms an integral whole with the left and right walls of the floor scrubber mop head housing at the top of the semi-cylindrical cleaning roller receiving area. At the same time, it provides sufficient rebound space for the cleaning roller after being squeezed by the wringing strip on the arc surface of the cleaning roller, making the transition area from the deformed area of ​​the squeezed sponge layer of the cleaning roller to the free state area longer, thereby reducing the operating current of the motor that drives the cleaning roller to rotate.

[0046] Thirdly, since the integrated floor scrubber wringing beam of the present invention is integrally formed with the floor scrubber mop head housing, there is naturally no gap between the detachable wringing strip or the detachable housing cover with wringing strip and the floor scrubber mop head housing. Therefore, dirt will not accumulate in the gap and it is not easy to produce odors. Attached Figure Description

[0047] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. 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, without exceeding the scope of protection claimed in this application.

[0048] Figure 1 A perspective view of a floor scrubber cleaning head assembled with a trolley housing having the water-squeezing crossbeam of the present invention;

[0049] Figure 2 An exploded view of a floor scrubber cleaning head assembled with a tractor housing having the water-squeezing crossbeam of the present invention;

[0050] Figure 3 for Figure 1 Planar view from direction A;

[0051] Figure 4 for Figure 3 Enlarged view of a section at point B in the middle;

[0052] Figure 5 A perspective view of a tractor housing having the water-squeezing crossbeam of the present invention;

[0053] Figure 6 for Figure 5 Enlarged view of a section at point D.

[0054] Figure 7 for Figure 5 Planar view from the C-axis;

[0055] Figure 8 for Figure 7 Enlarged view of a section at point E in the middle.

[0056] Figure 9 Another exploded view of the floor scrubber cleaning head assembled with the auger housing having the wringing beam of the present invention;

[0057] Figure 10 Another perspective view of the tractor housing having the water-squeezing crossbeam of the present invention;

[0058] Figure 11 for Figure 10 Enlarged view of a section at point F in the middle;

[0059] Figure 12 For a tractor housing having another embodiment of the water-squeezing crossbeam of the present invention, Figure 5 Planar view from the C-axis;

[0060] Figure 13 for Figure 12 Enlarged view of a section at point E in the middle.

[0061] Figure label:

[0062] 1 is the tractor housing;

[0063] 3 is a quick-release top cover;

[0064] 6 is the sewage return side cover assembly;

[0065] 10 represents the tractor housing body;

[0066] 109 is the pressure cap, 1091 is the cover plate, and 1092 is the sealing rim;

[0067] 101 is the first crossbeam, 1011 is the first snap-fit ​​vertical plate, 1012 is the second snap-fit ​​vertical plate, and 1013 is the connecting plate;

[0068] K stands for card slot;

[0069] 102 is the second crossbeam, 1021 is the first reinforcing vertical plate, 1022 is the second reinforcing vertical plate, 1023 is the connecting guide plate, 10231 is the water-squeezing strip, 1024 is the cover plate, and 1025 is the reinforcing rib.

[0070] 103 is a water intake strip;

[0071] 105 is the clean water outlet;

[0072] 106 is the sewage outlet;

[0073] 107 is an open space;

[0074] 108 is the connector, 1081 is the vertical wall, 1082 is the intermittent connecting wall, 1083 is the bottom wall, and 10831 is the water seepage filter hole;

[0075] J is the large particle waste containment area;

[0076] 11 is the cleaning roller, 11a is the drive motor, and 111 is the wiping layer;

[0077] 21 is the water pumping pipe, and 22 is the water delivery pipe;

[0078] 205 is the wastewater return outlet, 206 is the exhaust outlet, 207 is the exhaust directional outlet, and 208 is the exhaust port.

[0079] 30 is a brush assembly;

[0080] 50 is the water tank assembly; 501 is the clear water chamber; 502 is the wastewater chamber;

[0081] 60 is the shovel bar assembly;

[0082] 70 is a waste collection component. Detailed Implementation

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] Patent application CN202021265645.5 discloses a cleaning device based on water-dust circulation, comprising a handheld part, a cleaning head, and a base. The handheld part includes a connecting rod, a clean water tank, and a battery. The cleaning head includes a wastewater tank, a waste box, a roller, a shovel, a pressure plate, a squeezing strip assembly, and a housing. The wastewater tank, waste box, and roller are mounted on the housing, which is connected to the clean water tank. The housing 210 also has a pressure plate 212 and a squeezing strip assembly 213. During the cleaning tool's operation, the roller rotates continuously, and the pressure plate 212 squeezes out the wastewater from the roller. Patent application CN202021267970.5 discloses a pressure plate assembly, a cleaning head, and a cleaning tool. The pressure plate assembly includes a pressure plate with a transparent window and a squeezing strip connected to the pressure plate. By providing a transparent window on the pressure plate, the water flow inside the cleaning tool can be observed, improving the user experience. The pressure plate is separated from the main body of the cleaning tool, thus simplifying the structure of the main body. The technical solutions disclosed in patents CN202021265645.5 and CN202021267970.5 both have pressure plates that are separable from the shell, that is, the squeezing strip is separable from the shell.

[0088] Patent application CN202310447020.2 discloses a multi-filter wringing strip installed on the housing of a floor scrubber. It squeezes the surface of the cleaning roller to form part of the cleaning tank. The wringing strip includes a wringing section, an extension section, and water-dividing hooks. The water-dividing hooks extend from the extension section in a direction away from the cleaning roller, dividing the cleaning tank into multiple filtration zones. The extension section and / or the water-dividing hooks have evenly distributed filter holes. The wringing strip in the patent disclosure CN202310447020.2 is also detachable from the housing.

[0089] Through continued improvement and testing, the inventors discovered several issues. Firstly, the plastic wringer strip, directly injection-molded onto the pressure plate integrated into the floor scrubber housing, is prone to loosening under external force due to its detachable connection to the housing. This leads to variations in the wringer's squeezing depth, further impacting the scrubber's cleaning ability. Secondly, while the metal wringer strip is detachably mounted to the housing, gaps remain at the mounting point. These gaps can trap dirt and grime over time, eventually causing odors and negatively affecting user experience. Thirdly, the vertical thickness of both the wringer strip integrated into the pressure plate and the detachable metal wringer strip near the cleaning roller is insufficient in the radial direction away from the cleaning roller. This inadequate support in this direction makes the wringer strip prone to deformation under stress, further affecting the scrubber's cleaning performance.

[0090] Based on this, the present invention provides a dewatering crossbeam and a tractor housing, which will be described below through specific embodiments.

[0091] Firstly, such as Figures 2 to 13 As shown, this invention discloses a wringing beam that connects to both sides of the mop head housing 1 of a floor scrubber and is located above the cleaning roller 11. It includes a first beam 101, a second beam 102, and a connector 108 connecting the two. The first beam has a locking groove K for engaging a water-guiding strip 103. The second beam has a wringing strip 10231 pointing towards the axis of the cleaning roller at one edge at its bottom. The connector 108 is Z-shaped, and its Z-shaped bottom wall 1083 has a water-permeable filter hole 10831. The first beam 101, connector 108, and second beam 102 are integrally formed with the mop head housing 1. One outer surface of the first beam 101, the upper surface of the connector 108, and one outer surface of the second beam 102 together form a water-guiding filter groove (not shown in the figures). This wringing beam enhances the ability of the wringing strip 10231 to resist the elastic abutment force from the axis of the cleaning roller 11.

[0092] Furthermore, such as Figure 3 , Figure 4 , Figure 7 , Figure 8 , Figure 12 , Figure 13 As shown, the tractor housing 1 includes a tractor housing body 10, on which the water-squeezing crossbeam is provided. During manufacturing, the tractor housing body 10 can be molded to form several protrusions at one edge of the bottom of the second crossbeam 102. Preferably, there is only one protrusion, which can directly serve as a water-squeezing strip 10231 for squeezing the cleaning roller 11. The structure of the end of the water-squeezing strip 10231 that elastically abuts against the cleaning roller 11 matches the structure of the cleaning roller 11; that is, the end of the water-squeezing strip 10231 that abuts against the cleaning roller 11 can be an arc-shaped end. Of course, the end of the water-squeezing strip 10231 that abuts against the cleaning roller 11 can also be a non-arc-shaped end, such as a serrated end, a polygonal end, etc., which is not specifically limited in this embodiment.

[0093] Furthermore, such as Figure 11 As shown, the squeezing strip 10231 is a straight line with a single cross-sectional shape and remains parallel to the axis of the cleaning roller 11. The squeezing strip 10231 can be tightened towards the inside of the water tank near the two end walls (not shown in the attached figure) to prevent leakage from the entire cleaning head assembly due to excessive water pressure at the elastic contact point between the water guide filter groove and the end wall when the cleaning roller 11 is tilted towards the axial side of the cleaning head assembly. This "tightening" has two meanings: first, the squeezing strip 10231 tightens towards the width of the water guide filter groove, reducing its width; second, the squeezing strip 10231 extends towards the axis of the cleaning roller 11, increasing the interference fit of the elastic contact. This dual meaning of "tightening towards the inside of the water tank" further improves the water tank's leak-proof capability under any angle of use.

[0094] Furthermore, the tractor housing body 10 is used to install a cleaning roller 11 with a scrubbing function, and has two side walls (not shown in the figure) for clamping the cleaning roller 11; the squeezing strip 10231 abuts against the cleaning roller 11 to scrape away dirt and sewage from the surface of the cleaning roller. Figure 6 As shown, a clean water outlet 105 is provided in the water tank area on one side wall of the tractor housing body 10, and a sewage outlet 106 is provided in the water tank area on the other side wall.

[0095] Furthermore, the squeezing crossbeam also includes a water guide strip 103 that snaps into the snap-fit ​​groove K. The water guide strip 103 includes an integrally formed snap-fit ​​part (not shown in the figure) that elastically snaps into the snap-fit ​​groove K and a water guide part (not shown in the figure) that elastically abuts against the cleaning roller 11. The lower surface of the water guide part abuts against the cleaning roller 11, and the highest point of its upper surface is lower than the lowest point of the lower surface of the squeezing strip 10231, guiding the sewage away from its upper surface. The squeezing strip 10231, the water guide strip 103, the upper surface of the cleaning roller 11 located between the squeezing strip and the water guide strip, the lower surface of the connector 108, and the two side walls together form a flushing water tank (not shown in the figure). One end of the water guide filter tank is connected to the clean water chamber 501 in the floor scrubber mop head assembly, and the other end is connected to the sewage chamber 502 in the floor scrubber mop head assembly.

[0096] In this embodiment, as Figure 3 , Figure 4As shown, after the cleaning roller 11 is installed on the tractor housing body 10, at least one water-squeezing strip 10231 elastically abuts against the wiping layer 111 of the cleaning roller 11. Of course, the elastic abutment of both the water-squeezing strip 10231 and the water-guiding strip 103 against the wiping layer 111 of the cleaning roller 11 further facilitates the timely removal of clean water and wastewater. The water-squeezing strip 10231, the water-guiding strip 103, the upper surface of the cleaning roller located between the water-squeezing strip and the water-guiding strip, the lower surface of the connector 108, and the two side walls together form a flushing water groove. The water-squeezing strip 10231 is used to squeeze out excess water from the cleaning roller 11, and the water-guiding strip 10231... The water strip 103 is used to prevent the sewage squeezed out from the cleaning roller 11 from flowing into the garbage collection assembly 70 along the surface of the wiping layer 111 of the cleaning roller 11. The cleaning roller 11 includes a drive motor 11a mounted on one side wall of the tractor housing body 10. The cleaning roller 11 also includes a cleaning roller (not shown in the figure), which is sleeved on the output end (not shown in the figure) of the drive motor 11a. When the drive motor 11a is working, its output end drives the cleaning roller to rotate. The cleaning roller 11 includes a wiping layer 111 that is elastically in contact with both the squeezing strip 10231 and the water guide strip 103. When the cleaning roller 11 cleans the ground, the squeezing strip 10231 contacts the cleaning roller 11 and squeezes the wiping layer 111 to squeeze out excess water from the wiping layer 111. The water guide strip 103 is used to prevent the wastewater squeezed out from the wiping layer 111 from flowing into the garbage collection assembly 70 along the surface of the wiping layer 111. At the same time, the bottom wall 1083 of the connector 108 between the squeezing strip 10231 and the water guide strip 103 can filter large particles of garbage and undissolved particles of garbage in the sewage brought into the flushing tank by the cleaning roller 11 through the seepage filter hole 10831, so as to prevent the sewage from being blocked in the sewage channel (not shown in the figure) flowing to the sewage tank 502, thereby avoiding water leakage during the use of the floor scrubber.

[0097] In this embodiment, the bottom wall 1083 of the connector 108 disposed between the squeezing strip 10231 and the water guide strip 103 can be used to filter large particles of debris brought into the water tank by the cleaning roller 11 and undissolved particles of debris in the sewage, preventing particles of debris in the sewage and large particles of debris squeezed off by the squeezing strip 10231 from clogging the sewage channel as they flow into the sewage tank 502 in the cleaning head assembly. That is to say, the bottom wall 1083 of the connector 108 can be disposed between the squeezing strip 10231 and the water guide strip 103, and its specific actual position can be selected according to the actual application. This embodiment does not make a specific limitation.

[0098] In this embodiment, as Figure 4 , Figure 8 , Figure 13As shown, during the manufacturing process, the tractor head housing body 10 can be molded to pre-reserve an interface for installing the water guide strip 103 on its surface. This interface, along with appropriate fasteners, allows for a detachable connection between the water guide strip 103 and the tractor head housing body 10. The water guide strip 103 can also directly serve as a component to prevent wastewater squeezed out from the wiping layer 111 of the cleaning roller 11 from flowing into the waste collection assembly 70. The specific structure of the end of the water guide strip 103 that elastically abuts against the cleaning roller 11 can be consistent with that described in the previous embodiments, and will not be repeated here. Figure 4 , Figure 8 , Figure 13 As shown, the auger housing body 10 has a locking groove K for engaging the water guide strip 103 on its inner side facing the cleaning roller 11 and located between the squeezing strip 10231 and the brush assembly 30. The water guide strip 103 has a locking end (not shown in the figure) on the other side away from the cleaning roller 11, which elastically engages with the locking groove K. Preferably, the two side walls on which the locking end elastically engages with the locking groove K have elastic barb structures (not shown in the figure). These elastic barb structures allow the user to easily engage the locking end into the locking groove K when replacing the water guide strip 103. Preferably, the water guide strip 103 is a straight line with a single cross-sectional shape and remains parallel to the axis of the cleaning roller 11. Furthermore, the water guide strip 103 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 walls when the cleaning roller 11 is tilted on the axial side of the entire cleaning head assembly. This "tightening" has two meanings, the same as the meaning of "tightening at both ends" of the squeezing strip 10231 discussed in the previous embodiment, and will not be repeated here.

[0099] In some embodiments, such as Figure 4 , Figure 8 , Figure 13As shown, the highest point of the upper surface of the water guide strip 103 is higher than the lowest point of the lower surface of the water squeeze strip 10231. When the cleaning roller 11 cleans the ground, the lowest point of the lower surface of the water squeeze strip 10231 (not shown in the figure) elastically scrapes the wiping layer 111 of the cleaning roller 11 to squeeze out excess water from the wiping layer 111. At this time, as long as the highest point of the upper surface of the water guide strip 103 is lower than the highest point of the free state portion of the partially compressed wiping layer 111, the squeezed-out wastewater can flow along the surface of the wiping layer 111 to the upper surface of the water guide strip 103. The water guide strip 103 is used to prevent the wastewater squeezed out from the wiping layer 111 from flowing into the garbage collection assembly 70. The water guide strip 103 uses the curvature of its upper surface to smoothly guide the wastewater squeezed out by the water squeeze strip 10231. Specifically, as shown in the figure... Figure 4 As shown, since the wiping layer 111 is cylindrical, the uncompressed portion of the wiping layer 111 naturally has a highest point (not shown in the attached figure) when the floor scrubber is in operation. The lower surface of the wringing strip 10231 is lower than this highest point, which helps to squeeze out more wastewater. The wringing strip 10231 elastically scrapes and squeezes the wiping layer 111. After the wastewater is squeezed out, it will naturally flow downward along the arc of the partially compressed upper surface of the wiping layer 111. Since the wiping layer 111 is made of PVA (Polyvinyl alcohol) material through foaming and curing, the wiping layer 111 has a large number of pores inside. While clean water and wastewater flow downward along the upper surface of the wiping layer 111, they also penetrate into the wiping layer 111 through the pores. Since the wiping layer 111 is covered on the outer surface of a waterproof hard rubber roller (not shown in the attached figure), once the clean water and wastewater penetrate to the outer surface of the hard rubber roller, they will naturally not penetrate further downward. One end of the water guide strip 103 is elastically abutted against the upper surface of the wiping layer 111, so that at least the clean water and sewage that do not penetrate into the inside of the wiping layer 111 will be guided away along the upper surface of the wiping layer 111 and the upper surface of the water guide strip 103. Since the lowest point of the lower surface of the squeezing strip 10231 is lower than the highest point of the upper surface of the guide strip 103 used to guide sewage, some sewage will naturally overflow the seepage filter hole 10831. Sewage mixed with large particles of garbage cannot pass through the seepage filter hole 10831 and is left in the flushing tank. Sewage mixed with small particles of garbage passes through the seepage filter hole 10831 and continues to flow into the sewage chamber 502 along the sewage outlet 106. The highest point (not shown in the figure) of one end of the guide strip 103 elastically abutting against the wiping layer 111 is higher than the lowest point of the lower surface of the squeezing strip 10231, so that more sewage can be filtered through the bottom wall 1083 of the connector 108.

[0100] Because the cleaning roller 11 of the floor scrubber is constantly rotating at high speed during operation, the aforementioned description of clean water and wastewater being guided or permeated through two paths is a transient, instantaneous state. It should be noted that the highest and lowest points mentioned here refer only to the broad meaning of the aforementioned technical essence; these highest and lowest points do not necessarily have to be as described above. Figure 4 , Figure 8 , Figure 13 The image shows the lowest point of the lower surface of the squeezing strip 10231 and the highest point of the upper surface of the water guide strip 103. The actual dynamic situation is as follows: because the upper surface of the wiping layer 111 is constantly rotating at high speed, the clean water and wastewater that just penetrated into the wiping layer 111 in the previous instant become the clean water and wastewater contained in the highest point of the upper surface of the wiping layer 111, squeezed by the lowest point of the lower surface of the squeezing strip 10231. Under the action of the squeezing strip 10231, this portion of clean water and wastewater can only continue to be scraped and squeezed, continuing to be guided or penetrate into the aforementioned two paths. The entire dynamic process repeats these two transient instantaneous processes continuously. Furthermore, during the high-speed rotation of the wiping layer 111, which is saturated with both clean and dirty water, the water contained within is separated from the upper surface of the wiping layer 111 by the contact point of the water guide strip 103. Regardless of whether this contact point is the highest or lowest point, the separated wastewater will continue to be guided away along the upper surface of the water receiving component 103 under the combined effects of gravity, centrifugal force, and inertia. Even if the upper surface of the water receiving component 103 extends upwards or downwards along the direction in which the clean and dirty water are thrown out, as long as the initial velocity of the water leaving the contact point of the water receiving component 103 is high enough, the water can still be guided upwards or downwards under the influence of inertia. Considering the effects of centrifugal force and inertia during high-speed rotation, as... Figure 4 , Figure 8 , Figure 13 As shown, the relative height of the contact point between the lower surface of the squeezing strip 10231 and the wiping layer 111, and the contact point between the water guide strip 103 and the wiping layer 111, no longer needs to be considered. As long as the squeezed-out sewage can continue to be guided away along the upper surface of the water guide strip 103, it is considered that "the highest point of the upper surface of the water guide strip 103 used to guide sewage is higher than the lowest point of the lower surface of the squeezing strip 10231".

[0101] Furthermore, in some embodiments, such as Figure 4 , Figure 8 , Figure 13As shown, the water-guiding section of the water-guiding strip 103 has two pointed ends near the cleaning roller 11, one of which, having the highest point, abuts against the cleaning roller 11. The water-guiding strip 103 abuts against at least one point of the wiping layer 111; the portion around this point forms the first pointed end (not shown in the figure), which is the aforementioned highest point. The water-guiding strip 103 also has a second pointed end (not shown in the figure), which can either abut against the wiping layer 111 or have a certain gap from it. To further reduce the resistance of the cleaning roller 11 during high-speed rotation, the water-guiding strip 103 can elastically abut against the end of the wiping layer 111, or it can only elastically abut against the wiping layer 111 near the first pointed end of the squeezing strip 10231. The second tip allows the brush assembly 30 in the cleaning head assembly to directionally throw the brushed solid and sticky waste into the waste collection assembly 70 during high-speed rotation, preventing the brush assembly from throwing the waste back onto the surface of the wiping layer 111 after one rotation.

[0102] Furthermore, in some embodiments, such as Figure 4 , Figure 8 , Figure 13 As shown, the middle portion between the two tips arches outward and separates from the cleaning roller 11. The first and second tips of the water guide strip 103 arch outward away from the cleaning roller 11. This reduces the contact area between the water guide strip 103 and the cleaning roller 11, further reducing the resistance of the cleaning roller 11 during high-speed rotation.

[0103] In some embodiments, such as Figure 4 , Figure 8 , Figure 13 As shown, the connector 108 extends towards the water guide strip 103 on one side, and a gap is left between the lower surface of the bottom wall 1083 of the connector 108 and the surface of the cleaning roller (not shown in the figure). A gap is also left between the lower surface of the bottom wall 1083 of the connector 108 and the upper surface of the wiping layer 111 of the cleaning roller 11. The gap allows the wastewater squeezed out by the squeezing strip 10231 to further flush the upper surface of the wiping layer 111, preventing fine particles from accumulating on the lower surface of the bottom wall 1083 of the connector 108. Furthermore, this gap allows air to circulate, preventing the accumulated waste in the space from becoming smelly due to prolonged confinement, even when the floor scrubber is not operating. The bottom wall 1083 of the connector 108 has the functions described in the foregoing embodiments, which will not be repeated here.

[0104] In some embodiments, such as Figure 4 , Figure 8 , Figure 13 As shown, the connector 108 extends toward the water guide strip on one side, and the lower surface of the bottom wall 1083 leaves a gap with the surface of the cleaning roller. The vertical wall 1081 of the bottom wall 1083 of the connector 108 extends away from the normal direction of the surface of the cleaning roller. When the user mops the floor with water, if the water sucked up by the cleaning roller 11 is squeezed out by the squeezing strip 10231 and the resulting wastewater flow in the water guide filter tank is too large, it can prevent the wastewater from overflowing the top of the vertical wall 1081 that extends away from the normal direction of the surface of the cleaning roller. This forces the squeezed wastewater to be filtered through the bottom wall 1083 of the connector 108 before it can be guided to the wastewater outlet 106 at one end of the water guide filter tank and then further transported to the wastewater chamber 502. This prevents the wastewater from bypassing the bottom wall 1083 of the connector 108 and causing the wastewater channel to be blocked. A gap is left between the foremost surface of the vertical wall 1081 and the outer surface of the second snap-fit ​​vertical plate 102 of the first horizontal beam 101, such as... Figure 4 , Figure 8 , Figure 13 As shown, this gap is called the large particle waste receiving area J. This allows a small amount of large particle waste brought up by the cleaning roller 11 and not brushed off by the brush to be rolled into the flushing water tank. This large particle waste receiving area J can usually accommodate these large particles of waste to be constantly turned over and "stay" here. When the gap between the lower surface of the bottom wall 1083 of the connector 108 and the wiping layer 111 is smaller than the diameter of the large particles of waste, these large particles of waste are turned over and brought to the large particle waste receiving area J, and are freely "restricted" in this space, so that they are not stuck in the gap between the lower surface of the bottom wall 1083 of the connector 108 and the wiping layer 111 for a long time. Moreover, once large particles of waste are stuck in the gap between the lower surface of the bottom wall 1083 of the connector 108 and the wiping layer 111, the large particles of waste are easy to scratch the surface of the wiping layer 111, thereby shortening the service life of the cleaning roller 11.

[0105] It should be noted that the water seepage filter hole 10831 on the bottom wall 1083 of the connector 108 can be formed during the molding process of the tractor housing body 10, or it can be set by machining after the tractor housing body 10 is molded. It can be selected according to the actual application, and this embodiment does not make specific limitations.

[0106] It should also be noted that the first crossbeam 101, the first crossbeam 102 and the connecting piece 108 can be injection molded simultaneously in a single injection molding process during the molding of the tractor housing body 10, or they can be molded sequentially through multiple injection molding processes.

[0107] In some embodiments, one end of the bottom wall 1083 of the connector 108 near the second crossbeam 102 abuts against the cleaning roller 11, and the other end has a gap with the upper surface of the cleaning roller 11. The end of the bottom wall 1083 of the connector 108 near the second crossbeam 102 elastically abuts against the surface of the wiping layer 111 of the cleaning roller 11, which can further suppress the wastewater directionally thrown out during the high-speed rotation of the cleaning roller 11 and the wastewater squeezed out by the squeezing strip 10231 from splashing in the water tank, so that the wastewater can slowly flow out through the seepage filter hole 10831 in the bottom wall 1083 of the connector 108 and the lower surface of the bottom wall 1083 of the connector 108. The outflowing wastewater is further guided to the wastewater outlet 106 of the water guide filter tank through the water guide strip 103, and the wastewater is further discharged to the wastewater tank 502 through the wastewater channel.

[0108] In some embodiments, the bottom wall 1083 of the connector 108 is evenly distributed with a plurality of water-permeable filter holes 10831 to isolate solid waste particles larger than the mesh aperture. The aperture of the water-permeable filter holes 10831 on the bottom wall 1083 of the connector 108 can be selected to have different mesh apertures depending on the usage scenario. Of course, if the bottom wall 1083 of the connector 108 is detachably connected to the wringer strip 10231, the user can configure different bottom walls 1083 of the connector 108 according to their actual floor scrubber usage habits and scenarios. If the user wants to clean their home more thoroughly with the floor scrubber, they can choose a bottom wall 1083 of the connector 108 with a smaller mesh aperture, but deep cleaning of the bottom wall 1083 of the connector 108 will also need to be performed more frequently. Conversely, although the cleaning ability of a floor scrubber may be weaker, the frequency of cleaning the bottom wall 1083 of the connector 108 will also be lower.

[0109] Furthermore, in some embodiments, such as Figure 6 As shown, the cleaning head housing body 10 also includes two end walls for clamping the cleaning roller 11. One end wall has a clean water outlet 105 in the water guiding filter groove area, and the other end wall has a wastewater outlet 106 in the water tank area. The clean water outlet 105 and wastewater outlet 106 are provided on the two end walls at both ends of the water guiding filter groove to facilitate the flow of clean water from the clean water tank 501 along the water guiding filter groove. The clean water can penetrate into the surface of the wiping layer 111 of the cleaning roller 11 through the bottom wall 1083 of the connector 108. The surface of the wiping layer 111 is further scraped by the squeezing strip 10231 to achieve the flushing of clean water to remove fine particles of debris mixed in the wiping layer 111 and replace the wastewater. Then, the wastewater is further guided to the wastewater outlet 106 along the water guiding filter groove and the upper surface of the water guiding strip. Finally, the wastewater is discharged to the wastewater tank 502 through the wastewater channel.

[0110] Furthermore, in some embodiments, such as Figure 6 As shown, the clean water outlet 105 is not directly opposite the wastewater outlet 106 in the water outlet direction. A clean water outlet 105 is provided on one end wall of the water guiding filter tank. This clean water outlet 105 is located above the upper surface of the bottom wall 1083 of the connector 108, facilitating the flow of clean water from the clean water tank 501 along the upper surface of the bottom wall 1083 of the connector 108. Furthermore, the clean water outlet 105 can be circular, facilitating the selection of circular pipe fittings for connecting the clean water channel pipeline. Of course, the clean water outlet 105 can also be rectangular; appropriate pipe fittings can be selected for easy connection of the clean water channel pipeline. Figure 4 , Figure 6 , Figure 8 , Figure 13 As shown, a sewage outlet 106 is provided on one end wall of the other end of the water guiding filter tank. This sewage outlet 106 is located above the upper surface of the bottom wall 1083 of the connector 108. The sewage outlet 106 covers the entire width of the water guiding filter 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 111 into the sewage channel after it flows along the upper surface of the bottom wall 1083 of the connector 108. Figure 6 As shown, the clean water outlet 105 is not directly opposite the sewage outlet 106 in the water outlet direction. This prevents the clean water just discharged from the clean water outlet 105 from flowing directly into the sewage outlet 106 along the upper surface of the bottom wall 1083 of the connector 108. Ideally, all the clean water should pass through the bottom wall 1083 of the connector 108 and undergo clean water and sewage replacement in the wiping layer 111, thereby carrying away fine particulate matter mixed inside the wiping layer 111. The design where the clean water outlet 105 is not directly opposite the sewage outlet 106 results in a higher efficiency in clean water and sewage replacement.

[0111] Of course, the clean water outlet 105 and / or the wastewater outlet 106 can also be located below the lower surface of the bottom wall 1083 of the connector 108. This solution provides a more direct rinsing of the surface of the wiping layer 111. 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 humid. 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.

[0112] In some embodiments, such as Figures 6 to 8 , Figures 11 to 13As shown, the vertical wall 1081 of the connector 108 is arranged parallel to the water guide strip 103, meaning that the vertical wall 1081 of the connector 108 is not directly connected to the water guide strip 103. The vertical wall 1081 of the connector 108 divides the water trough formed between the water guide strip 103 and the squeezing strip 10231 into two water troughs. A second sewage outlet (not shown in the attached figure) identical to the other water trough is also provided on the side wall where the sewage outlet 106 is provided. The water trough near the water guide strip 103 is connected to the sewage tank. When the squeezing strip 10231 squeezes the cleaning roller 11, excess water on the cleaning roller 11 flows through the bottom wall 1083 of the connector 108 into the water trough formed between the vertical wall 1081 of the connector 108 and the water guide strip 103, and then flows into the sewage tank.

[0113] In some embodiments, such as Figure 3 , Figure 4 As shown, the top opening of the water guiding filter channel is also covered with a pressure cap 109 to achieve a seal on the water guiding filter channel and the flushing water channel. The pressure cap 109 includes a cover plate 1091 and a sealing eave 1092 that is elastically snapped onto the outer ring of the cover plate 1091. The sealing eave 1092 is made of elastic material, and the sealing cap 109 seals the top opening of the water guiding filter channel by utilizing the elastic deformation of the sealing eave 1092.

[0114] In some embodiments, such as Figures 2 to 12 As shown, the distance between the end of the squeezing strip 10231 near the cleaning roller 11 and the end near the tractor housing body 10 is greater than the distance between the end of the water guide strip 103 near the cleaning roller 11 and the end near the tractor housing body 10. Simply put, the squeezing strip 10231 squeezes the wiping layer 111 deeper, while the water guide strip 103 squeezes the wiping layer 111 shallower. This design makes it easier for the squeezing strip 10231 to scrape and squeeze the wiping layer 111 to remove wastewater, while the water guide strip 103 more easily and elastically abuts against the wiping layer 111 to guide the squeezed-out wastewater towards the wastewater outlet 106.

[0115] In some embodiments, such as Figure 4 , Figure 8 , Figure 13 As shown, the first crossbeam 101 is n-shaped and includes a first snap-fit ​​vertical plate 1011, a second snap-fit ​​vertical plate 1012, and a connecting plate 1013 that encloses and connects the two snap-fit ​​vertical plates. The first snap-fit ​​vertical plate 1011, the second snap-fit ​​vertical plate 1012, and the connecting plate 1013 together form a snap-fit ​​groove K for snapping the water guide strip 103. The first snap-fit ​​vertical plate 1011 and the second snap-fit ​​vertical plate 1012 are elastically snapped into the snap-fit ​​portion of the water guide strip 103. The n-shaped crossbeam 101 further increases the strength of the first crossbeam 101, and in particular, the double longitudinal beam structure improves the anti-interference strength of the first crossbeam 101.

[0116] Furthermore, the upper surface of the connecting plate 1013 is provided with multiple through holes, and multiple screws pass through the through holes to be fastened to the snap-fit ​​part. This can further increase the strength of the fixed connection between the water guide strip 103 and the first crossbeam 101, and can prevent it from loosening and falling downwards after a period of use due to the loosening of the elastic snap-fit ​​between the snap-fit ​​groove K and the snap-fit ​​part of the water guide strip 103.

[0117] In some embodiments, such as Figure 6 As shown, the vertical wall 1081 of the connector 108 continues to be horizontally and intermittently connected to the first crossbeam 101 at its highest point, forming an intermittent connecting wall 1082. An open space 107 is provided between every two intermittent connecting walls, and the intermittent connecting walls 1082 and open spaces 107 are alternately arranged. Large particles of waste are tumbled and brought to the large particle waste receiving area J, where they are freely "restricted" within this space, preventing them from being stuck in the gap between the lower surface of the bottom wall 1083 of the connector 108 and the wiping layer 111 for an extended period. Furthermore, if large particles of waste are stuck in the gap between the lower surface of the bottom wall 1083 of the connector 108 and the wiping layer 111, the large particles can easily scratch the surface of the wiping layer 111, thus shortening the service life of the cleaning roller 11. If the diameter of large particles is greater than the height of the large particle waste containing area J, the large particles can gradually move axially during the continuous rolling of the cleaning roller 11. Once the large particles break through the "suppression" of the intermittent connecting wall 1082, they can automatically roll "freely" in the open space 107. This further reduces the wear on the wiping layer 111 when the large particles are suppressed under the intermittent connecting wall 1082. On the other hand, the intermittently set open space 107 also facilitates the opening of the air passage for the sewage suppressed in the flushing tank and the large particle waste containing area J, preventing the odor from being continuously suppressed in the flushing tank and the large particle waste containing area.

[0118] In some embodiments, such as Figure 2 , Figure 3As shown, the left side wall of the tractor housing 10 is also provided with a sewage guiding channel (not shown in the attached figure) and an exhaust channel (not shown in the attached figure). The sewage guiding channel is used to guide the sewage squeezed out from the cleaning roller 5 back into the sewage chamber 502 of the water tank 50. The starting end of the sewage guiding channel is a sewage outlet 106, and the ending end of the sewage guiding channel is a sewage return port 205. The starting end of the exhaust channel is an exhaust outlet 206, and the ending end of the exhaust channel is an exhaust directional port 207. The exhaust directional port 207 is connected to the hollow cavity of the second crossbeam. When the water tank 50 is installed in place, the sewage return port 205 and the exhaust outlet 206 are both connected to the sewage inlet (not shown in the attached figure) of the water tank. The exhaust channel is connected to the sewage guiding channel through the sewage inlet of the water tank. The sewage guiding channel, sewage inlet, exhaust channel, and exhaust port are sequentially connected to guide the air in the sewage chamber 502 to be released to the outer surface of the cleaning roller 11.

[0119] In some embodiments, such as Figure 2 As shown, a sewage return side cover assembly 6 is also sealed and snapped onto the left side wall of the tractor housing body 10 to seal the sewage guide channel and the exhaust channel. Users can disassemble the sewage return side cover assembly 6 to clean and maintain the sewage guide channel and the exhaust channel themselves.

[0120] In some embodiments, such as Figure 4 , Figure 8 , Figure 13 As shown, the second crossbeam 102 includes a first reinforcing plate 1021, a second reinforcing plate 1022, and a connecting guide plate 1023 that closes and connects the two reinforcing plates. Multiple reinforcing ribs are also connected between the two reinforcing plates. A cover plate is also provided over the upward-facing opening formed by the two reinforcing plates. The first reinforcing plate 1021, the second reinforcing plate 1022, and the connecting guide plate 1023 together enclose the hollow cavity of the second crossbeam 102. Because a squeezing strip 10231 pointing towards the axis of the cleaning roller is provided at one edge of the bottom of the second crossbeam 102, the squeezing strip 10231 continuously and elastically squeezes the wiping layer 111 of the cleaning roller 11. The squeezing strip 10231 needs to rely on the multiple longitudinal beam structure of the entire second crossbeam 102 for rigid support to ensure that the compression of the squeezing strip 10231 on the wiping layer 111 is constant, thus ensuring the constant cleaning ability of the floor scrubber. Furthermore, as... Figure 6 , Figures 9 to 11 As shown, an exhaust port 208 is provided on the other edge of the bottom of the second crossbeam 102 away from the water-squeezing strip 10231. The exhaust port 208 is connected to the hollow cavity of the second crossbeam 102, and then the exhaust port 208 is further connected to the exhaust directional port 207 through the hollow cavity of the second crossbeam 102.

[0121] In some embodiments, such as Figure 8 As shown, the second crossbeam 102 is U-shaped. Of course, as... Figure 8 As shown, the two reinforcing vertical plates may not be connected with reinforcing ribs, and the structure of the double longitudinal beams improves the anti-interference strength of the second crossbeam 102.

[0122] In some embodiments, such as Figure 13 As shown, the second crossbeam is in the shape of an inverted H, and the downward-facing opening formed by the two reinforcing vertical plates points towards the cleaning roller. The double longitudinal beam structure improves the anti-interference strength of the second crossbeam 102. The H-shaped structure further reduces the area of ​​elastic compression between the lower surface of the second crossbeam 102 and the wiping layer 111, thereby further reducing the resistance of the squeezing strip 10231 elastically squeezing the wiping layer 111 during the rotation of the cleaning roller 11, and thus further reducing the current of the drive motor that drives the cleaning roller 11 to rotate. The downward-facing opening formed by the two reinforcing vertical plates points towards the cleaning roller 11, and the air in the exhaust channel enters the hollow cavity of the second crossbeam 102 through the exhaust directional port 207, and can also pass through the pores of the wiping layer 111.

[0123] Secondly, such as Figures 1 to 3 As shown, the present invention also provides a mop head housing 1, including a housing body 10 and a quick-release top cover 3. The mop head housing body 10 is provided with a wringing beam as described in the first aspect. The cleaning head assembly of the floor scrubber also includes a drive motor 11a mounted on one end wall of the mop head housing body 10, a cleaning roller 11 sleeved on the drive motor 11a, a water tank assembly 50 that can be installed and removed from one side of the mop head housing body 10, a shovel assembly 60 that can be slidably installed and removed from the bottom of the mop head housing body 10 for guiding garbage to be swept up by the cleaning roller 11, and a brush assembly 30 installed inside the mop head housing body 10 and synchronously driven by the cleaning roller 11. The drive motor 11a drives the cleaning roller 11 to rotate, thereby synchronously driving the brush assembly 30 to rotate synchronously. The brush assembly 30 is used to brush the solid and sticky garbage swept up by the cleaning roller 11 to the garbage collection assembly 70.

[0124] 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 wringing beam, connected to both sides of the mop head housing of a floor scrubber and located above the cleaning roller, characterized in that, include: The first crossbeam is equipped with a snap-fit ​​groove for snapping in the water guide strip; The second crossbeam has a water-squeezing strip at one edge of its bottom that points towards the center of the cleaning roller shaft; Connector, connecting the first crossbeam and the second crossbeam; The left and right walls of the wringer beam and the scrubber mop head housing form a seamless whole at the top of the semi-cylindrical cleaning roller receiving area. The wringer beam has a multi-longitudinal beam structure along the axial direction of the S-shaped cross-section with sufficient width along the arc surface of the cylinder.

2. The water-squeezing crossbeam as described in claim 1, characterized in that, The first crossbeam, the connector, and the second crossbeam are integrally formed with the tractor housing. The outer surface of one side of the first crossbeam, the upper surface of the connector, and the outer surface of one side of the second crossbeam together form a water-guiding filter groove.

3. The water-squeezing crossbeam as described in claim 2, characterized in that, The connector is Z-shaped and includes a bottom wall, a vertical wall, and an intermittent connecting wall connected in sequence. The bottom wall is provided with water seepage filter holes.

4. The water-squeezing crossbeam as described in claim 3, characterized in that, The tractor housing includes a tractor housing body, on which the water-squeezing crossbeam is provided. During the manufacturing process, the tractor housing body is formed by a mold to form several protrusions at one edge at the bottom of the second crossbeam. These protrusions directly serve as water-squeezing strips for squeezing the cleaning roller. The structure of the end of the water-squeezing strip that elastically abuts against the cleaning roller is matched with that of the cleaning roller.

5. The water-squeezing crossbeam as described in claim 4, characterized in that, The desqueezing strip is a straight line with a single cross-sectional shape and is parallel to the axis of the cleaning roller. The desqueezing strip tightens towards the inside of the water tank near both end walls.

6. The water-squeezing crossbeam as described in claim 2, characterized in that, One of the two side walls used to hold the cleaning roller has a clean water outlet in the water guiding and filtering groove area, and the other side wall has a wastewater outlet in the water guiding and filtering groove area.

7. The water-squeezing crossbeam as described in claim 6, characterized in that, The dewatering crossbeam also includes a water guide strip that snaps into the snap-fit ​​groove. The water guide strip includes an integrally formed snap-fit ​​part that elastically snaps into the snap-fit ​​groove and a water guide part that elastically abuts against the cleaning roller.

8. The water-squeezing crossbeam as described in claim 7, characterized in that, The water-guiding section has two pointed ends near the two ends of the cleaning roller, one of which has the highest point on the upper surface of the water-guiding section and abuts against the cleaning roller.

9. The water-squeezing crossbeam as described in claim 8, characterized in that, The highest point of the upper surface of the water intake section is lower than the lowest point of the lower surface of the squeezing strip.

10. The dewatering beam as described in claim 9, characterized in that, The upper surface of the squeezing strip, the water guiding strip, the cleaning roller located between the squeezing strip and the water guiding strip, the lower surface of the connector, and the two side walls together form a flushing water tank. One end of the water guiding filter tank is connected to the clean water chamber in the floor scrubber mop head assembly, and the other end is connected to the wastewater chamber in the floor scrubber mop head assembly.

11. The dewatering beam as described in claim 10, characterized in that, The bottom wall of the connector is located between the squeezing strip and the water guiding strip.

12. The water-squeezing crossbeam as described in claim 10, characterized in that, During the manufacturing process, the tractor head housing is molded to leave an interface on its surface for installing a water guide strip. This interface allows for a detachable connection between the water guide strip and the tractor head housing. The water guide strip directly serves to prevent wastewater squeezed out from the wiping layer of the cleaning roller from flowing into the waste collection assembly.

13. The water-squeezing crossbeam as described in claim 12, characterized in that, The tractor housing body has a snap-fit ​​groove for snapping the water guide strip on the inner side facing the cleaning roller and located between the wringer strip and the brush assembly. The water guide strip has a snap-fit ​​end on the other side away from the cleaning roller, and the snap-fit ​​end is elastically snapped into the snap-fit ​​groove.

14. The water-squeezing beam as described in claim 13, characterized in that, The two side walls of the snap-fit ​​end that are elastically snapped into the snap-fit ​​groove are provided with an elastic barb structure.

15. The water-squeezing crossbeam as described in claim 14, characterized in that, The water guide strip is a straight line with a single cross-sectional shape and is parallel to the axis of the cleaning roller.

16. The water-squeezing crossbeam as described in claim 15, characterized in that, The water guide strips tighten towards the inside of the water tank near both end walls.

17. The water-squeezing beam as described in claim 10, characterized in that, The water guide strip is used to guide the highest point of the upper surface of the sewage to be higher than the lowest point of the lower surface of the water squeeze strip.

18. The dewatering beam as described in claim 10, characterized in that, The middle part between the two tips arches outward and detaches from the cleaning roller.

19. The dewatering beam as described in claim 10, characterized in that, The connector extends towards the water guide strip on the side facing the water guide strip to form a bottom wall, and the lower surface of the bottom wall leaves a gap with the surface of the cleaning roller.

20. The water-squeezing crossbeam as described in claim 19, characterized in that, The connector has a vertical wall in the middle that extends from the end of the bottom wall along the normal direction of the surface of the cleaning roller. The frontmost surface of the vertical wall has a gap with the outer surface of the snap-fit ​​groove facing the water-squeezing strip. This gap is a large particle waste containment area.

21. The water-squeezing beam as described in claim 20, characterized in that, The vertical wall of the connector is set parallel to the water guide strip, and the vertical wall of the connector divides the water groove between the water guide strip and the water squeezing strip into two water grooves; On the side wall where the sewage outlet is located, there is also a second sewage outlet, which is the same as the other water tank. The water tank near the water guide bar is connected to the sewage tank. When the squeezing bar squeezes the cleaning roller, the excess water on the cleaning roller flows through the bottom wall of the connector into the water tank formed between the vertical wall of the connector and the water guide bar, and then flows into the sewage tank.

22. The dewatering beam as described in claim 10, characterized in that, The first crossbeam is n-shaped and includes a first snap-fit ​​vertical plate, a second snap-fit ​​vertical plate, and a connecting plate that closes and connects the two snap-fit ​​vertical plates. The first snap-fit ​​vertical plate and the second snap-fit ​​vertical plate are elastically snapped together with the snap-fit ​​part.

23. The water-squeezing beam as described in claim 22, characterized in that, The upper surface of the connecting plate has multiple through holes, and multiple screws pass through the through holes to be fastened to the snap-fit ​​part.

24. The water-squeezing beam as described in claim 20, characterized in that, The first horizontal beam continues to connect intermittently at the highest point of the vertical wall, forming an intermittent connecting wall. An open space is provided between every two intermittent connecting walls, and the intermittent connecting walls and open spaces are alternately set.

25. The water-squeezing crossbeam as described in claim 10, characterized in that, The second crossbeam is U-shaped and includes a first reinforcing vertical plate, a second reinforcing vertical plate, and a connecting guide plate that closes and connects the two reinforcing vertical plates. A cover plate is also provided on the upward opening formed by the two reinforcing vertical plates.

26. The water-squeezing crossbeam as described in claim 10, characterized in that, The second crossbeam is in the shape of an inverted H and includes a first reinforcing vertical plate, a second reinforcing vertical plate, and a connecting guide plate that encloses and connects the two reinforcing vertical plates. The downward opening formed by the two reinforcing vertical plates points towards the cleaning roller.

27. The water-squeezing beam as described in any one of claims 25 or 26, characterized in that, The second crossbeam has an exhaust port on its side wall facing the outside of the tractor housing.

28. The water-squeezing beam as described in any one of claims 2-26, characterized in that, The top opening of the water guiding filter tank is also covered with a pressure cap to seal the water guiding filter tank and the flushing water tank.

29. The water-squeezing beam as described in any one of claims 4-26, characterized in that, The distance between the end of the squeezing strip near the cleaning roller and the end near the tractor head housing body is greater than the distance between the end of the water-guiding strip near the cleaning roller and the end near the tractor head housing body.

30. A tractor housing, characterized in that, It includes a housing body and a quick-release top cover, wherein the housing body is provided with a dewatering crossbeam as described in any one of claims 1-29.

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