Floor brush assembly and floor scrubber including it

Abstract

This invention discloses a floor brush assembly and a floor scrubber including the same. The floor brush assembly has an internal flow channel for absorbing wastewater, and a scraper is provided at the inlet end of the assembly near the flow channel. On the side of the scraper facing the ground and near the inlet end, there is a flexible, contacting portion that connects to the ground at both ends along the direction of movement of the floor brush assembly. A suction groove is provided between the two ends of the contacting portion, communicating with both the flow channel and the ground. Along the direction of movement of the floor brush assembly, the wall of the suction groove extends at least partially from the two ends of the contacting portion at the side facing the ground, allowing the suction groove to be closed when the floor brush assembly moves in a planar manner. The cross-sectional width of the suction groove is set to utilize capillary effect to absorb wastewater from the ground into the flow channel. Utilizing capillary effect to absorb wastewater improves the cleaning efficiency of the floor brush assembly.

Description

Technical Field

[0001] This invention relates to the field of floor scrubbers, and more particularly to a floor brush assembly and a floor scrubber including the same. Background Technology

[0002] In existing floor scrubbers, when encountering raised surfaces like door sills during mopping, the front and rear blades of the brush deform upon contact with the sill, causing the blade ends to flip and create a triangular-shaped cleaning dead zone between the blade and the sill. This results in dirty water remaining in the seam between the sill and the floor, making it impossible to effectively clean. Furthermore, because clothless floor scrubbers lack absorbency, under normal operating conditions (such as repeatedly mopping the door sill), it is difficult to effectively remove dirty water from these cleaning dead zones.

[0003] Therefore, the problem that floor scrubbers cannot fully cover the cleaning liquid on the floor urgently needs to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect of existing floor scrubbers that cannot fully cover the cleaning liquid on the floor, and to provide a floor brush assembly and a floor scrubber including the assembly.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A floor brush assembly includes an internal flow channel for absorbing wastewater and a scraper blade located near the inlet end of the flow channel.

[0007] On the area near the inlet end of the scraper blade facing the ground, there is a flexible, contacting part that can be connected to the ground at both ends along the moving direction of the floor brush assembly, and between the two ends of the contacting part, there are water absorption grooves that are respectively connected to the flow channel and the ground.

[0008] Along the moving direction of the floor brush assembly, the wall of the water suction groove extends at least partially from the two ends of the mating part at the end facing the ground, so that the water suction groove can be in a closed state when the floor brush assembly moves in the plane, and the cross-sectional width of the water suction groove is set to be able to use capillary effect to suck up sewage from the ground into the flow channel.

[0009] In this technical solution, by setting a water-absorbing groove on the scraper blade of the floor brush assembly, the capillary effect of surface tension can be used to directly suck sewage into the water-absorbing groove. The water-absorbing groove of the scraper blade is closed when the floor brush assembly is moving in a planar manner, and when it passes a threshold, the scraper blade flips and deforms with the threshold, and the water-absorbing groove is lifted off the ground and opens. This ensures that sewage can be effectively sucked up when contacting thresholds or other raised surfaces, or when moving on raised surfaces. Moreover, no additional driving force is required to achieve automatic water suction, which improves the cleaning efficiency of the floor brush assembly, simplifies the cleaning process, and reduces the need for manual intervention.

[0010] Preferably, the cross-section of the bonding portion in the vertical direction is triangular, and the width of the bonding portion gradually increases from bottom to top along the vertical direction;

[0011] Preferably, the height of the bonding portion accounts for 30%-60% of the height of the scraper.

[0012] In this technical solution, the cross-section of the bonding part is triangular and the width gradually increases, which can increase the thickness of the inner side of the scraper, enabling it to clean deeper into the dead area and effectively solve the problem of incomplete cleaning of dead areas by existing floor scrubbers.

[0013] Preferably, in its natural state, the angle between the plane containing the normal of the top end face of the adhesive portion and the extension direction of the scraper is C, wherein 7.5°≤C≤20°;

[0014] And / or, in its natural state, the angle between the plane containing the tangential direction of the adhesive portion at the end near the ground and the vertical direction is D, where 10°≤D≤20°.

[0015] In this technical solution, the angle setting allows the squeegee to more effectively contact the ground during cleaning and better remove dirt, improving cleaning efficiency and thoroughness. Furthermore, a properly set angle reduces friction between the squeegee and the ground, decreasing wear and extending its lifespan. The squeegee in its natural state refers to a state where it is not in contact with the ground and does not deform.

[0016] Preferably, in its natural state, the angle between the top end face of the adhesive portion and the plane perpendicular to the extension direction of the adhesive portion is B, and the angle between the plane containing the normal of the top end face of the adhesive portion and the extension direction of the adhesive portion is C, wherein 0≤BC≤10°.

[0017] In this technical solution, by controlling the difference between the included angles B and C, the contact part can be made to more effectively adhere to the ground during cleaning, improving the cleaning effect and thus removing dirt more thoroughly. The so-called "scraper strip in its natural state" refers to the state where the scraper strip does not contact the ground and does not deform.

[0018] Preferably, in its natural state, the angle between the extension direction and the vertical direction of the scraper is A, where 0° <A<40°。

[0019] In this technical solution, a smaller included angle allows the squeegee to be closer to the ground, enhancing the cleaning effect and more effectively removing dirt, ensuring a more thorough cleaning. The squeegee in its natural state refers to a state where it does not contact the ground and does not deform.

[0020] Preferably, the water suction groove extends perpendicular to the moving direction of the floor brush assembly;

[0021] Preferably, the depth of the water absorption groove is between 0.5 and 0.8 mm.

[0022] In this technical solution, the inner horizontal groove has a certain water-carrying capacity when the scraper leaves the ground, carrying the sewage away from the cleaning dead zone, further enhancing the cleaning effect and ensuring thorough cleaning of the joint between the threshold and the ground.

[0023] Preferably, there are multiple water suction grooves, and the multiple water suction grooves are arranged sequentially at intervals along the moving direction of the floor brush assembly;

[0024] Preferably, the number of water-absorbing tanks is between 3 and 5.

[0025] In this technical solution, the arrangement of multiple suction channels increases the surface area for water absorption by the floor brush assembly, improving suction efficiency and enabling faster removal of wastewater from the floor. Furthermore, the spaced arrangement of the suction channels allows the floor brush assembly to cover the floor more evenly and comprehensively, better covering cleaning dead zones, and continuously absorbing water during the cleaning process, thus improving the thoroughness of the cleaning.

[0026] Preferably, the cross-sectional width of each of the water suction grooves is the same along the moving direction of the floor brush assembly;

[0027] Preferably, along the moving direction of the floor brush assembly, the width of each of the water-absorbing grooves ranges from 0.5 to 0.8 mm, and / or, the width of the area of ​​the scraper blade away from the contact portion is t, wherein 0.8 mm <t<1.5mm。

[0028] In this technical solution, the appropriate width of the water absorption groove can better adapt to different types and thicknesses of threshold height, which not only enhances the cleaning ability but also improves the stability of cleaning.

[0029] Preferably, along the extension direction of the scraper, the projected length of the water absorption groove on the plane where the extension direction of the scraper is located is S1, wherein 3mm≤S1≤5mm;

[0030] And / or, along the extension direction of the scraper strip, the projected length of the suction groove on the plane containing the extension direction of the scraper strip is S1, and the projected length of the entire scraper strip on the plane containing the extension direction of the scraper strip is S2, where 0.4 <S1:S2<0.8。

[0031] In this technical solution, the appropriate length of the water absorption groove can more effectively absorb and store sewage on the ground, thereby enhancing the water absorption capacity and improving the efficiency and thoroughness of the floor brush assembly in the cleaning process.

[0032] A floor scrubbing machine includes a drive system, a wastewater tank, and a floor brush assembly as described above. The drive system and the floor brush assembly are connected to a flow channel to provide the floor brush assembly with a force to absorb wastewater. At the same time, the wastewater tank is also connected to the flow channel of the floor brush assembly to collect wastewater.

[0033] This technical solution utilizes capillary effect and optimized structural design to enable the floor scrubber to clean the floor more effectively and to efficiently draw wastewater into the wastewater tank, thereby improving cleaning efficiency and effectiveness.

[0034] The positive and progressive effects of this invention are as follows:

[0035] 1. The aforementioned floor brush assembly utilizes the capillary effect of surface tension to directly suck sewage into the suction tank. Not only can the suction tank be closed or opened depending on the contact with the ground and the raised ground such as thresholds to ensure effective suction of sewage from the ground, but it also achieves automatic water suction without the need for additional driving force, thereby improving the cleaning efficiency of the floor brush assembly, simplifying the cleaning process, and reducing the need for manual intervention.

[0036] 2. The floor scrubber described herein utilizes capillary effect and optimized structural design, enabling it to clean the floor more effectively and efficiently draw wastewater into the wastewater tank, thereby improving cleaning efficiency and effectiveness. Attached Figure Description

[0037] Figure 1 This is a first-view structural schematic diagram of the floor brush assembly according to Embodiment 1 of the present invention.

[0038] Figure 2 This is a second-view structural schematic diagram of the floor brush assembly according to Embodiment 1 of the present invention.

[0039] Figure 3 This is a side sectional view of the floor brush assembly according to Embodiment 1 of the present invention.

[0040] Figure 4 This is a schematic diagram of the scraper blade according to Embodiment 1 of the present invention.

[0041] Figure 5 This is a partial side view of the scraper strip according to Embodiment 1 of the present invention.

[0042] Figure 6 This is a simplified schematic diagram of the sewage area in the clean dead zone of Embodiment 1 of the present invention.

[0043] Figure 7 This is a simplified structural diagram of the floor brush assembly of Embodiment 1 of the present invention when it moves in a plane.

[0044] Figure 8 This is a simplified structural diagram of the floor brush assembly according to Embodiment 1 of the present invention when it moves on a raised surface.

[0045] Explanation of reference numerals in the attached figures:

[0046] Floor brush component 100

[0047] Circulation Channel 11

[0048] Entry point 111

[0049] Roller brush 12

[0050] scraper 13

[0051] Front scraper 131

[0052] Rear scraper 132

[0053] Adhesion part 133

[0054] Water Suction Tank 1331

[0055] Threshold 200

[0056] 300 tons of sewage

[0057] The movement direction X of the floor brush component

[0058] The direction in which the sewage is drawn in is Y Detailed Implementation

[0059] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments.

[0060]

Example 1

[0061] like Figures 1-8 As shown, this embodiment discloses a floor brush assembly 100 for a floor scrubber. The floor brush assembly 100 has a flow channel 11 for absorbing wastewater 300 inside, and a scraper 13 is provided at the inlet end 111 of the floor brush assembly 100 near the flow channel 11. Specifically, a flexible fitting part 133 is provided on the area of ​​the scraper 13 facing the ground and near the inlet end 111. The fitting part 133 can be connected to the ground at both ends along the moving direction of the floor brush assembly 100, and a water absorption groove 1331 is provided between the two ends of the fitting part 133, which is connected to the flow channel 11 and the ground respectively.

[0062] Along the moving direction X of the floor brush assembly, the wall of the water suction groove 1331 extends at least partially from both ends of the mating portion 133 at the end facing the ground, so that the water suction groove 1331 can be in a closed state when the floor brush assembly 100 moves in the plane, and the cross-sectional width of the water suction groove 1331 is set to be able to use capillary effect to suck up the sewage 300 from the ground into the flow channel 11.

[0063] In this embodiment, the floor brush assembly 100 also has a roller brush 12 at one end facing the ground, and scraper strips 13 are provided at both ends of the roller brush 12 along its moving direction, namely a front scraper strip 131 and a rear scraper strip 132. The inlet end 111 of the flow channel 11 is sandwiched between the rear scraper strip 132 and the roller brush 12, and a contact part 133 and a water suction groove 1331 are provided on the side surface of the rear scraper strip 132 facing the roller brush 12. In this way, when the floor brush assembly 100 passes over the raised ground such as the threshold 200, the sewage 300 in the cleaning dead zone can contact the water suction groove 1331 on the scraper strip 13, and be sucked into the water suction groove 1331 through capillary effect, and finally sucked into the flow channel 11 along the direction Y in which the sewage is sucked in. For details, please refer to Figure 3 The capillary effect refers to the phenomenon where, when a liquid is in a narrow pipe or groove, due to surface tension, the liquid is adsorbed onto the wall of the pipe or groove and rises along its surface.

[0064] Among them, such as Figure 6 As shown, the area where the wastewater is stored is illustrated. Specifically, the wastewater 300 within the cleaning dead zone refers to the wastewater formed in the space created on the sides of the ground and threshold 200, areas that need to be raised. Therefore, the specific operating principle of the floor brush assembly 100 in this embodiment is as follows: Figure 7As shown, when the scraper 131 passes through this area, the contact portion 133 of the scraper 131 will fill this area, which is equivalent to encroaching on the cleaning dead zone. It will squeeze the sewage in this space to the upper surface of the area that needs to be raised, such as the threshold 200. At this time, when the floor brush assembly 100 moves on the plane, since the wall length of the water suction groove 1331 is greater than the end length of the contact portion 133 and is subjected to the friction force of contact with the ground, the wall of the water suction groove 1331 will close the water suction groove 1331 in a way that blocks the water suction groove 1331 along the moving direction X of the floor brush assembly, so as to ensure that the sewage can be squeezed to the upper surface that needs to be raised, such as the threshold 200.

[0065] Then, the sewage is squeezed to the upper surface, as... Figure 8 As shown, when the floor brush assembly 100 moves to a raised area such as the threshold 200, the scraper 13 contacts the threshold 200 and deforms, thus being lifted. Specifically, the front end of the contact portion 133 is lifted first, followed by the wall of the water suction tank 1331 and the rear end of the contact portion 133, causing the entire contact portion 133 to detach from the ground. At this time, the end of the water suction tank 1331 facing the ground is open, allowing the wastewater 300 in the cleaning dead zone to contact the scraper. The water is drawn into the suction groove 1331 on the strip 13 by the capillary effect of the long and narrow space of the suction groove 1331. After the floor brush assembly 100 moves to the plane after passing the raised area such as the threshold 200, the fitting part 133 and the wall surface forming the groove will return to the closed state due to their deformation. Finally, the sewage 300 drawn into the suction groove 1331 will be drawn into the flow channel 11 under the action of negative pressure, thus completing the entire process of the floor brush assembly 100 absorbing sewage.

[0066] In summary, this process utilizes the capillary effect of surface tension to directly draw wastewater 300 into the suction tank 1331. Not only can the suction tank 1331 be closed or opened as needed to ensure effective absorption of wastewater 300 from the ground, but it also achieves automatic water absorption without the need for additional driving force, thereby improving the cleaning efficiency of the floor brush assembly 100, simplifying the cleaning process, and reducing the need for manual intervention.

[0067] In other embodiments, a water suction groove 1331 may be provided on the surface of the front scraper 131 facing the roller brush 12 to achieve the effect of collecting sewage 300.

[0068] like Figure 4 and Figure 5As shown, the cross-section of the bonding portion 133 in the vertical direction is an inverted triangle, meaning the width of the bonding portion 133 gradually increases from bottom to top along the height direction. Preferably, the height of the bonding portion 133 accounts for 30%-60% of the overall height of the scraper blade 13. The triangular cross-section of the bonding portion 133 and the gradually increasing width increase the thickness of the inner side of the scraper blade 13, allowing it to penetrate deeper into dead areas and effectively solve the problem of incomplete cleaning of dead areas by existing floor scrubbers.

[0069] Furthermore, such as Figure 5 As shown, in its natural state, the structural dimensions of the adhesive portion 133 of the scraper also include the following limitations:

[0070] (1) The angle between the plane containing the normal of the top end face 133a of the fitting part 133 and the extension direction of the scraper 13 is C, where 7.5°≤C≤20°;

[0071] (2) The angle between the plane containing the tangent at the end of the mating part 133 near the ground and the vertical direction is D, where 10°≤D≤20°;

[0072] (3) The angle between the top end face 133a of the fitting part 133 and the plane perpendicular to the extension direction of the scraper 13 is B, where 0≤BC≤10°;

[0073] (4) The angle between the extension direction of scraper 13 and the vertical direction is A, where 0° <A<40°。

[0074] The so-called scraper strip in its natural state refers to the state in which the scraper strip does not come into contact with the ground and does not deform.

[0075] In this embodiment, by adopting the above-described structure for the contact portion 133, the scraper 13 can more effectively adhere to the ground during cleaning and better remove dirt, thereby improving cleaning efficiency and thoroughness. Furthermore, the appropriate angle setting reduces friction between the scraper 13 and the ground, decreasing wear and tear and extending its service life.

[0076] like Figure 4 As shown, the water suction groove 1331 extends perpendicular to the moving direction X of the floor brush assembly. Preferably, the depth of the water suction groove 1331 is between 0.5-0.8mm. The inner transverse groove has a certain water carrying capacity when the scraper 13 leaves the ground, carrying the wastewater 300 away from the cleaning dead zone, further enhancing the cleaning effect and ensuring thorough cleaning of the joint between the threshold 200 and the ground.

[0077] Meanwhile, there are multiple water suction tanks 1331, which are arranged at intervals along the moving direction X of the floor brush assembly, that is, arranged at intervals along the direction Y in which sewage is sucked in, and the number of water suction tanks 1331 is between 3 and 5.

[0078] In this embodiment, the arrangement of multiple water-absorbing grooves 1331 increases the surface area for water absorption by the floor brush assembly 100, improving water absorption efficiency and enabling faster removal of wastewater 300 from the floor. Furthermore, the spaced arrangement of the water-absorbing grooves 1331 allows the floor brush assembly 100 to cover the floor more evenly and comprehensively, better covering cleaning dead zones, and continuously absorbing water during the cleaning process, thus improving the thoroughness of cleaning.

[0079] Specifically, such as Figure 5 As shown, the structural dimensions of the water suction tank 1331 also include the following limitations:

[0080] (1) Along the moving direction X of the floor brush assembly, the cross-sectional width of each water suction groove 1331 is the same, and the width of each water suction groove 1331 is between 0.5-0.8mm.

[0081] (2) The width of the area of ​​the scraper 13 away from the bonding part 133 is t, where 0.8mm <t<1.5mm;

[0082] (3) Along the extension direction of the scraper 13, the length of the water suction groove 1331 on the plane where the extension direction of the scraper 13 is located is S1, where 3mm≤S1≤5mm;

[0083] (4) Along the extension direction of the scraper 13, the projected length of the entire scraper 13 on the plane containing the extension direction of the scraper 13 is S2, where 0.4 <S1:S2<0.8。

[0084] In this embodiment, the so-called vertical direction is the direction of gravity, that is, the direction perpendicular to the horizontal ground.

[0085] In this embodiment, the water absorption tank 1331 adopts the above-described structural form. The water absorption tank 1331 with appropriate length, width and depth can more effectively absorb and store sewage 300 on the ground, thereby enhancing the water absorption capacity and improving the efficiency and thoroughness of the floor brush assembly 100 in the cleaning process.

[0086]

Example 2

[0087] Example 2 discloses a floor scrubbing machine, which includes a drive system, a wastewater tank of 300, and the floor brush assembly 100 of Example 1.

[0088] The drive system is connected to the flow channel 11 of the floor brush assembly 100 to provide the floor brush assembly 100 with the force to suck up the sewage 300. At the same time, the sewage tank is also connected to the flow channel 11 of the floor brush assembly 100 to realize the collection of sewage 300.

[0089] In this embodiment, the capillary effect and structural design optimization are utilized to enable the floor scrubber to clean the floor more effectively and to effectively suck the wastewater 300 into the wastewater tank, thereby improving cleaning efficiency and effectiveness.

[0090] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A floor brush assembly, a flow channel for sucking up sewage being provided inside the floor brush assembly, and a scraping strip being provided at an entrance end of the flow channel close to the floor brush assembly, characterized in that, a fitting part capable of bending and having both ends capable of being connected to the ground along a moving direction of the floor brush assembly is provided on an end of the scraping strip facing the ground and close to the entrance end, and a water suction groove being communicated with the flow channel and the ground respectively is provided between the two ends of the fitting part; wherein, along the moving direction of the floor brush assembly, a wall surface forming the water suction groove at the end facing the ground at least partially protrudes from the two ends of the fitting part, so that the water suction groove can be in a closed state when the floor brush assembly moves in a plane; the scraping strip is in contact with the threshold and is deformed by turning over, so as to be lifted, and the end of the water suction groove facing the ground is in an open state, and the cross-sectional width of the water suction groove is arranged to be capable of sucking up the sewage on the ground into the flow channel by capillary effect. The cross section of the fitting part in the vertical direction is triangular, and the width of the fitting part gradually increases from bottom to top along the vertical direction. An angle between a normal plane of a top end surface of the fitting part and an extension direction of the scraping strip in a natural state of the scraping strip is C, wherein 7.5°≤C≤20°. And / or, an angle between a tangent plane of the fitting part at the end close to the ground and the vertical direction in the natural state of the scraping strip is D, wherein 10°≤D≤20°.

2. The brush assembly of claim 1, wherein, An angle between the top end surface of the fitting part and a plane perpendicular to the extension direction of the scraping strip in the natural state of the scraping strip is B, and an angle between a normal plane of the top end surface of the fitting part and the extension direction of the scraping strip is C, wherein 0≤B-C≤10°.

3. The brush assembly of claim 2, wherein, An angle between the extension direction of the scraping strip and the vertical direction in the natural state of the scraping strip is A, wherein 0°<A<40°. The water suction groove extends perpendicularly to the moving direction of the floor brush assembly.

4. The brush assembly of claim 2, wherein, The number of the water suction grooves is multiple, and the multiple water suction grooves are arranged in sequence and at intervals along the moving direction of the floor brush assembly.

5. The brush assembly of claim 1, wherein, The cross-sectional width of each water suction groove is the same along the moving direction of the floor brush assembly.

6. The brush assembly of claim 1, wherein, A projection length of the water suction groove on a plane along the extension direction of the scraping strip is S1, wherein 3mm≤S1≤5mm.

7. The brush assembly of claim 1, wherein, And / or, a projection length of the water suction groove on the plane along the extension direction of the scraping strip is S1, and a projection length of the entire scraping strip on the plane along the extension direction of the scraping strip is S2, wherein 0.4<S1:S2<0.

8.

8. The brush assembly of claim 7, wherein, The scrubber includes a driving system, a sewage tank, and the floor brush assembly according to any one of claims 1-9, the driving system and the flow channel of the floor brush assembly are communicated to provide a suction force for the floor brush assembly, and the sewage tank is also communicated with the flow channel of the floor brush assembly to collect the sewage.

9. The brush assembly of claim 1 or 7, wherein, ​ ​ 10. A scrubber, characterized in that ​

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