Floor brush of surface cleaning device and floor scrubber

Abstract

The ground brush of the surface cleaning device comprises a rolling brush, a water outlet part and a scraper, the water outlet part extends in the axial direction of the rolling brush and is located in the circumferential direction of the rolling brush, when the rolling brush rotates relative to the water outlet part, liquid supplied by the water outlet part wets the surface of the rolling brush, and the front end of the scraper serves as an extrusion end. The floor brush is provided with a containing part for containing the scraper plate on the rear side of the rolling brush, the containing part comprises two side parts located at the two ends of the floor brush, the two side parts are the left side part and the right side part respectively, the scraper plate at least comprises one of two side wings located at the two ends of the floor brush, and the two side wings are the left side wing and the right side wing respectively. The left side wing is hinged to the left side part and / or the right side wing is hinged to the right side part, the containing part is provided with a driving piece on the rear side of the scraper, and the driving piece is used for pushing the scraper and swings forwards through the hinge; the scraping plate and the water supply assembly are relatively independently arranged, and meanwhile the variable extrusion amount is achieved; the utility model further provides a scrubber which comprises the floor brush.

Description

TECHNICAL FIELD

[0001] The utility model relates to surface cleaning device technical field, specifically is a surface cleaning device's floor brush and scrubber. BACKGROUND

[0002] Surface cleaning device such as dust catcher, scrubber, floor sweeping robot etc. household cleaning product, in order to promote cleaning performance, generally is equipped with floor brush, and this floor brush includes rolling brush, and when the floor brush is configured to water outlet part, then the wet rolling brush can be obtained, thereby being favorable to obtain more excellent cleaning performance, and the water outlet part is generally arranged along the axial direction of the rolling brush and is located at the circumference of the rolling brush, when the rolling brush rotates relative to the water outlet part, the liquid supplied by the water outlet part moistens the surface of the rolling brush, and the "water" of the water outlet part is only a general term, and the "water" refers to liquid, which can be clean water mixed with detergent or pure water.

[0003] In the prior art, the water flow of the water outlet part is generally controlled to be relatively small (this is a specific design considering the ground water residue, if the water flow is larger, ground water residue is easy to occur), therefore the water flowing out of the water outlet hole of the water outlet part basically falls vertically, and will not diffuse and flow along the designed horn-shaped flow guide groove to uniformly wet the rolling brush, so that the effect and efficiency of wetting the rolling brush are relatively poor. In order to better wet the rolling brush and improve the wetting efficiency, the conventional method is to increase the water outlet hole along the axial direction of the rolling brush, which leads to complex structure, and further leads to that the waterway structure communicated with each water outlet hole is also more lengthy and complex.

[0004] In the prior art, in order to realize that the sewage scraping strip can change the extrusion degree according to the thickness of the rolling brush, a cleaning floor brush with variable extrusion amount is designed, the main structure includes a scraping plate assembly, a water spraying assembly and a driving piece, the scraping plate assembly includes a plate body connected to the water spraying assembly and rotating around a second axis, the driving piece is used for applying a force to the scraping plate assembly towards the rolling brush rotation, so as to drive the plate body to rotate relative to the water spraying assembly to realize a first position and a second position, and the water outlet part is the main part of the water spraying assembly (in fact, it is more appropriate to call it a water supply assembly, because there is no spraying effect, but mainly the effect of flowing out), therefore, according to the prior art design, the water spraying assembly is involved, which makes the structure more complex.

[0005] Therefore, the present application provides a floor brush of a surface cleaning device, which is independently arranged relative to a water supply assembly and simultaneously realizes variable extrusion amount. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problem that the prior art has defects, provides a floor brush of a surface cleaning device, which is independently arranged relative to a water supply assembly and simultaneously realizes variable extrusion amount, and further provides a scrubber comprising the floor brush.

[0007] Compared with the prior art, this utility model proposes a floor brush for a surface cleaning device, including a roller brush, a water outlet, and a scraper. The water outlet extends along the axial direction of the roller brush and is located in the circumference of the roller brush. When the roller brush rotates relative to the water outlet, the liquid supplied by the water outlet wets the surface of the roller brush. The front end of the scraper serves as a squeezing end. The floor brush has a receiving part for accommodating the scraper on the rear side of the roller brush. The receiving part includes two side parts located at both ends of the floor brush, namely a left side part and a right side part. The scraper includes at least one of the two side wings located at both ends of the floor brush, namely a left side wing and a right side wing. The left side wing is hinged to the left side part and / or the right side wing is hinged to the right side part. The receiving part has a driving member on the rear side of the scraper. The driving member is used to push the scraper and swing forward through the hinge.

[0008] Compared with the prior art, the present invention has the following advantages after adopting the above structure:

[0009] This disclosure improves upon the design by installing a receiving portion for mounting the scraper. The receiving portion has a driving member on the rear side of the scraper, which is used to push the scraper and swing it forward through the hinge. Therefore, it is set up relatively independently from the water supply component, while realizing variable squeezing amount. In this way, on the one hand, the setting of the water supply component (the water outlet is the main part of the water supply component) can be mainly considered according to its own needs. On the other hand, it provides a new technical route for designing a cleaning brush with variable squeezing amount.

[0010] In some embodiments, the water outlet is disposed in the receiving portion, and a gap is formed between the lower side of the water outlet and the bottom surface of the receiving portion, which communicates with the brush side, and the bottom plate portion of the scraper is fitted into the gap.

[0011] In some embodiments, the front end of the scraper is provided with an upper sealing strip and a lower sealing strip, and the front end of the scraper passes through the sealing opening formed by the upper sealing strip and the lower sealing strip.

[0012] In some embodiments, for cases where a gap is provided, the gap has an upper sealing strip and a lower sealing strip at the outlet on the roller brush side.

[0013] In some embodiments, the upper sealing strip is elastically downward-facing and / or the lower sealing strip is elastically upward-facing.

[0014] In some embodiments, the lower sealing strip includes an upwardly curved end that is provided with an interference fit relative to the outer peripheral wall of the roller brush.

[0015] In some embodiments, the bottom plate portion of the scraper is fitted with a guide structure.

[0016] In some embodiments, the guide structure includes a column disposed on the bottom surface of the receiving portion, and the bottom plate portion is provided with a mating hole / groove, which mates with the column, and the column guides the bottom plate portion to swing toward the roller brush side through the mating hole / groove.

[0017] In some embodiments, for the case that the water outlet is arranged in the accommodating portion, the water outlet is inserted into the stand column, and the stand column is used to fix the water outlet.

[0018] In some embodiments, the rear side of the accommodating portion is provided with a mounting hole / slot, a top rod and a spring are fitted in the mounting hole / slot, the rear end of the top rod is sleeved with the front end of the spring, the front end of the top rod is provided with an axial limiting portion, the front side outlet of the mounting hole / slot is provided with a blocking portion, the blocking portion is provided with a through hole / slot, the front end of the top rod is extended through the through hole / slot, the axial limiting portion and the blocking portion can be abutted to axially limit the top rod, the rear side of the mounting hole / slot is provided with a mounting portion, the mounting portion is sleeved with the rear end of the spring, in the initial state of the scraping plate pressing, the scraping plate pushes the top rod back to compress the spring, and the axial limiting portion and the blocking portion are in a separated state.

[0019] In some embodiments, the rear side of the scraping plate is provided with a back plate, and the rear side surface of the back plate can be abutted with the front end of the top rod.

[0020] In some embodiments, for the case that the water outlet is arranged in the accommodating portion, the bottom plate portion of the scraping plate and the back plate form an L-shaped structure, and the back plate is located in the active space for accommodating the back plate formed between the rear side of the water outlet and the rear side of the accommodating portion. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of a floor brush of a surface cleaning device after removing a roller brush.

[0022] Figure 2 It is a top view of the floor brush. Figure 1

[0023] It is a sectional view along A-A direction. Figure 3

[0024] It is a sectional view along A-A direction after removing the scraping plate. Figure 4

[0025] It is a sectional view along A-A direction after installing the roller brush. Figure 5

[0026] It is a perspective view of the floor brush of the surface cleaning device after removing the water outlet. Figure 6

[0027] It is a perspective view after further removing the scraping plate on the basis of the floor brush. Figure 7 Figure 6 It is a perspective view after further removing the lower sealing strip on the basis of the floor brush.

[0028] Figure 8 Figure 7

[0029] Figure 9 ​​​A perspective view of a surface cleaning device brush with spring removed.

[0030] Figure 10 A perspective view of a squeegee.

[0031] Explanation of reference signs, 1-roller brush, 2-water outlet, 3-water outlet hole, 4-squeegee, 5-front end, 6-receiving part, 7-left side, 8-right side, 9-left side wing, 10-right side wing, 11-bottom plate part, 12-upper sealing strip, 13-lower sealing strip, 14-sealing opening, 15-end, 16-stand, 17-matching hole, 18-mounting groove, 19-stop, 20-top rod, 21-spring, 22-axial limiting part, 23-mounting part, 24-back plate, 25-suction port, 26-collection groove, 27-interval, 28-movable space. DETAILED DESCRIPTION

[0032] The following description is provided to enable any person skilled in the art to practice the present application. The description is not intended to limit the present application, and the following examples are provided only as an example of how the present application can be made and used. The underlying principles defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions without departing from the spirit and scope of the present application.

[0033] Those skilled in the art should understand that in the disclosure of the present application, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the above terms cannot be understood as a limitation of the present application.

[0034] As Figures 1 to 10The surface cleaning device is a floor brush, which comprises a rolling brush 1, a water outlet 2 and a squeegee 4. The water outlet 2 is arranged along the axial direction of the rolling brush 1 and located in the circumferential direction of the rolling brush 1. When the rolling brush 1 rotates relative to the water outlet 2, the water supplied by the water outlet 2 can wet the surface of the rolling brush 1. The front end 5 of the squeegee 4 is used as a pressing end. The floor brush is provided with a containing part 6 on the back side of the rolling brush 1, which contains the squeegee 4. The containing part 6 comprises two side parts, i.e. a left side part 7 and a right side part 8, which are located at the two ends of the floor brush. The squeegee 4 comprises at least one side wing, i.e. a left side wing 9 and a right side wing 10, which are located at the two ends of the floor brush. The left side wing 9 is hinged to the left side part 7 and / or the right side wing 10 is hinged to the right side part 8. The containing part 6 is provided with a driving part on the back side of the squeegee 4, which is used to push the squeegee 4 and make it swing forward through the hinge.

[0035] In order to facilitate the flow of water, the water outlet 2 is generally arranged vertically and provided with an arc-shaped matching surface on the side of the rolling brush 1, and the arc-shaped matching surface is provided with water outlet holes 3. Figure 1 3 The front end 5 of the squeegee 4 is arranged in interference with the outer circumferential wall of the rolling brush 1, i.e. the front end 5 protrudes a certain distance, so as to press the outer circumferential wall of the rolling brush 1.

[0036] In some embodiments, the squeegee 4 comprises the left side wing 9 and the right side wing 10, which are hinged to the left side part 7 and the right side part 8, respectively.

[0037] In some embodiments, the squeegee 4 comprises the left side wing 9 and the right side wing 10, which are hinged to the left side part 7 and the right side part 8, respectively. Figure 6 9 In some embodiments, the squeegee 4 comprises the left side wing 9 and the right side wing 10, which are hinged to the left side part 7 and the right side part 8, respectively.

[0038] Further, since the rolling brush 1 rotates to generate a pressing force, in order to better maintain the pressing direction or stabilize the squeegee 4, the bottom part 11 of the squeegee 4 is matched with a guide structure.

[0039] The guide structure comprises a column 16 arranged on the bottom surface of the containing part 6, and the bottom part 11 is provided with a matching hole 17 which is matched with the column 16. The column 16 guides the bottom part 11 to swing to the side of the rolling brush 1 through the matching hole 17. The matching hole 17 is a waist-shaped hole. Figure 6 9 Of course, the guide structure can also be other structures, for example, the bottom part 11 is provided with a matching groove which is matched with the column 16. Any guide structure suitable for the present disclosure can be applied to the present disclosure.

[0040] In some embodiments, the squeegee 4 comprises the left side wing 9 and the right side wing 10, which are hinged to the left side part 7 and the right side part 8, respectively.

[0041] In some embodiments, the squeegee 4 comprises the left side wing 9 and the right side wing 10, which are hinged to the left side part 7 and the right side part 8, respectively. Figure 5 8 ​​​​As shown, the receiving part 6 is configured as an L-shaped groove, with a left side part 7 and a right side part 8 respectively located at both ends of the floor brush.

[0042] Furthermore, the L-shaped groove receiving portion 6 is vertically arranged on the rear side of the roller brush 1.

[0043] like Figure 5 As shown, the front end 5 and the water outlet 2 are arranged sequentially along the rotation direction of the roller brush 1.

[0044] In some embodiments, such as Figure 3 , 4 As shown in Figures 5, 6, and 8, the water outlet 2 is located within the receiving portion 6, and a gap 27 is formed between the lower side of the water outlet 2 and the bottom surface of the receiving portion 6, connecting the side of the roller brush 1. The bottom plate portion 11 of the scraper 4 is fitted into the gap 27. In this way, on the one hand, the structure is more compact, which helps to reduce the structural volume, while taking into account the installation requirements of the water outlet 2; on the other hand, the gap 27 can also play a certain limiting role, which is conducive to the movement of the bottom plate portion 11 within a reasonable range.

[0045] Specifically, in conjunction with the arrangement of the column 16, when the water outlet 2 is connected to the receiving part 6 from top to bottom, the water outlet 2 and the column 16 are interlocked, and the column 16 is also used to fix the water outlet 2. In this way, not only is the problem of setting up the guide structure solved, but also the problem of fixing the water outlet 2 is solved, thereby improving the structural compactness.

[0046] In order to better collect dirt, such as Figure 1 , 6 As shown, the floor brush has a suction port 25 on the lower side of the scraper 4 and collection grooves 26 on both sides of the suction port 25.

[0047] In some embodiments, such as Figure 4 , 5 As shown, in the case of setting interval 27, interval 27 is provided with an upper sealing strip 12 and a lower sealing strip 13 at the outlet on the side of the roller brush 1, and the front end 5 of the scraper 4 passes through the sealing opening 14 formed by the upper sealing strip 12 and the lower sealing strip 13. In this way, although the front end 5 of the scraper 4 is movable, with the aforementioned design, dirt is not easily allowed to enter the interior, thereby helping to avoid dirt accumulation.

[0048] Furthermore, the upper sealing strip 12 is elastically downwardly positioned and / or the lower sealing strip 13 is elastically upwardly positioned. In this example, the upper sealing strip 12 is elastically downwardly positioned and the lower sealing strip 13 is elastically upwardly positioned, so that a good seal can be maintained when the front end 5 is moving.

[0049] In particular, such as Figure 3 , 4As shown in Figure 5, the lower sealing strip 13 includes an upwardly curved end 15, which has an interference fit relative to the outer peripheral wall of the roller brush 1. This upward curve and interference fit facilitate the end 15 extending into the outer peripheral wall of the roller brush 1 along with the compression of the front end 5. When the roller brush 1 rotates, the outer peripheral wall of the roller brush 1 can compress the lower side of the end 15, thereby ensuring that the end 15 reliably fits and seals against the lower side of the front end 5. Since the upper sealing strip 12 is retracted inside, the outer peripheral wall of the roller brush 1 cannot compress the upper sealing strip 12. Therefore, the upper sealing strip 12 and the lower sealing strip 13 form a preferred sealing solution with high reliability during long-term operation of the roller brush 1.

[0050] Preferably, in order to better compress the end 15, the end 15 is configured as an arc-shaped portion.

[0051] In some embodiments, such as Figure 8 , 9 As shown, a mounting groove 18 is provided on the rear side of the receiving part 6. A push rod 20 and a spring 21 are fitted in the mounting groove 18 to form a driving component. The rear end of the push rod 20 is sleeved with the front end of the spring 21. An axial limiting part 22 is provided at the front end of the push rod 20. A stop part 19 is provided at the front outlet of the mounting groove 18. The stop part 19 has a through groove. The front end of the push rod 20 extends through the through hole / groove. The axial limiting part 22 and the stop part 19 can abut against each other to axially limit the push rod 20. A mounting part 23 is provided on the rear side of the mounting groove 18. The mounting part 23 is sleeved with the rear end of the spring 21. In the initial state of the scraper 4 pressing, the scraper 4 pushes the push rod 20 back to compress the spring 21, while the axial limiting part 22 and the stop part 19 are separated. In this way, on the one hand, the self-adaptive pushing scraper 4 is realized, and on the other hand, it is convenient for assembly and the structure is reliable.

[0052] Of course, the driving component can also have other structures, such as replacing the mounting slot 18 with a mounting hole. Any driving component suitable for this disclosure can be applied to this disclosure.

[0053] Furthermore, such as Figure 6 , 9 As shown, a back plate 24 is provided on the rear side of the scraper 4, and the rear side of the back plate 24 can abut against the front end of the top rod 20. In this way, the rear side of the back plate 24 and the front end of the top rod 20 are separately set, and the front end of the top rod 20 will not interfere with the swinging movement of the scraper 4. This is conducive to the scraper 4 adapting to a suitable posture when subjected to force, while the top rod 20 is only responsible for the front push pressure and will not be affected by the adverse effects of the force generated by the rotation of the roller brush 1 on the scraper 4 itself.

[0054] like Figure 3As shown, for the case that the water outlet 2 is arranged in the accommodating portion 6, the bottom plate portion 11 of the scraper 4 and the back plate 24 form an L-shaped structure, and the back plate 24 is located between the rear side of the water outlet 2 and the rear side of the accommodating portion 6 to form a moving space 28 for accommodating the back plate 24.

[0055] As can be seen from the above, in the present disclosure, the scraper 4 and the water outlet 2 can be installed in the following assembly structure: first, the top rod 20 and the spring 21 are installed in the installation groove 18, and due to the abutting cooperation of the axial limiting portion 22 and the blocking portion 19, the top rod 20 will not be pushed out by the spring 21, then the scraper 4 is installed in the accommodating portion 6, and the left side wing 9 is hinged with the left side portion 7, the right side wing 10 is hinged with the right side portion 8, and the cooperation hole 17 is matched with the vertical column 16 in the up-down sleeve joint, at this time, the back plate 24 is located on the front end side of the top rod 20, then the water outlet 2 is installed from top to bottom, the water outlet 2 is inserted and matched with the vertical column 16, the vertical column 16 fixes the water outlet 2, and the interval 27 is formed. After the foregoing installation is completed, when the roller brush 1 is installed, due to the extrusion of the outer peripheral wall of the roller brush 1, the scraper 4 will swing backward, then the scraper 4 pushes the top rod 20 back to compress the spring 21, and the axial limiting portion 22 and the blocking portion 19 are in a separated state, at this time, it is the initial state of extrusion of the scraper 4, if the roller brush 1 is new, the position of the scraper 4 can be considered as zero position, with the use and wear of the roller brush 1, the scraper 4 will gradually move forward, under the action of the spring 21, the front end portion 5 of the scraper 4 can reliably press against the outer peripheral wall of the roller brush 1, and due to the existence of the interval 27 and / or the upper sealing strip 12, the front end portion 5 of the scraper 4 can be kept in the extrusion direction and will not be pushed over by the roller brush 1, in this example, the upper sealing strip 12 extrudes the front end portion 5 of the scraper 4 downward, so that the front end portion 5 is kept in the extrusion direction.

[0056] The present disclosure also provides a floor cleaning machine, which comprises a machine body and a floor brush, and the machine body is connected with the floor brush at the lower end.

[0057] In understanding the present disclosure, if necessary, the above structure can refer to other embodiments / appendices Figure 1 It is understood that the above is not repeated here.

[0058] The above description is only an embodiment of the present application for illustration, therefore, equivalent changes or modifications made to the structure, features and principles described in the scope of protection of the present application are included in the scope of protection of the present application.

Claims

1. A surface cleaning device floor brush, comprising a rolling brush (1), a water outlet (2) and a squeegee (4), the water outlet (2) is arranged along the axial direction of the rolling brush (1) and located in the circumferential direction of the rolling brush (1), when the rolling brush (1) rotates relative to the water outlet (2), the liquid supplied by the water outlet (2) wets the surface of the rolling brush (1), the front end (5) of the squeegee (4) is used as a squeezing end, characterized in that, the front end (5) of the squeegee (4) is provided with a plurality of water outlet holes (6) arranged in the circumferential direction, the water outlet holes (6) are arranged in the circumferential direction of the front end (5) of the squeegee (4), and the water outlet holes (6) are arranged in the circumferential direction of the front end (5) of the squeegee (4). The floor brush is provided with a containing part (6) containing the blade (4) at the back side of the rolling brush (1), the containing part (6) comprises two side parts, i.e. a left side part (7) and a right side part (8) at two ends of the floor brush, the blade (4) comprises at least one of two side wings, i.e. a left side wing (9) and a right side wing (10) at two ends of the floor brush, the left side wing (9) is hinged with the left side part (7) and / or the right side wing (10) is hinged with the right side part (8), the containing part (6) is provided with a driving part at the back side of the blade (4), the driving part is used for pushing the blade (4) and moving forward by swinging through the hinged part.

2. The floor brush of claim 1, wherein, The water outlet part (2) is arranged in the containing part (6), and a space (27) is formed between the lower side of the water outlet part (2) and the bottom surface of the containing part (6) for connecting the side of the rolling brush (1), and the bottom plate part (11) of the blade (4) is fitted in the space (27).

3. The floor brush of claim 1 or 2, wherein, The front end of the blade (4) is provided with an upper sealing strip (12) and a lower sealing strip (13), and the front end part (5) of the blade (4) passes through the sealing opening (14) formed by the upper sealing strip (12) and the lower sealing strip (13).

4. The floor brush of claim 3, wherein the brush head is configured to be removable from the handle. For the case of arranging the space (27), the space (27) is provided with the upper sealing strip (12) and the lower sealing strip (13) at the outlet on the side of the rolling brush (1).

5. The floor brush of claim 3 wherein, The upper sealing strip (12) is arranged in an elastic lower pushing manner and / or the lower sealing strip (13) is arranged in an elastic upper pushing manner.

6. The floor brush of claim 5, wherein the brush is formed of a plurality of bristles. The lower sealing strip (13) comprises an end part (15) arranged in an upwardly curved manner, and the end part (15) is arranged with an interference amount relative to the outer peripheral wall of the rolling brush (1).

7. The floor brush of claim 1 or 2, wherein, The bottom plate part (11) of the blade (4) is fitted with a guide structure.

8. The floor brush of claim 7, wherein the brush is a spiral brush. The guide structure comprises a column (16) arranged on the bottom surface of the containing part (6), the bottom plate part (11) is provided with a fitting hole (17) / slot, the fitting hole (17) / slot is fitted with the column (16), and the column (16) guides the bottom plate part (11) to swing to the side of the rolling brush (1) through the fitting hole (17) / slot.

9. The floor brush of claim 8, wherein the bristles are formed of a material selected from the group consisting of nylon, polyester, and polypropylene. For the case that the water outlet part (2) is arranged in the containing part (6), the water outlet part (2) is fitted with the column (16) in a plug-in manner, and the column (16) is used for fixing the water outlet part (2) at the same time.

10. The floor brush of claim 1 or 2, wherein, The rear side of the containing part (6) is provided with a mounting hole / slot (18), a push rod (20) and a spring (21) are fitted in the mounting hole / slot (18), the rear end of the push rod (20) is sleeved with the front end of the spring (21), the front end of the push rod (20) is provided with an axial limiting part (22), the front side outlet of the mounting hole / slot (18) is provided with a blocking part (19), the blocking part (19) is provided with a through hole / slot, the front end of the push rod (20) extends out through the through hole / slot, the axial limiting part (22) and the blocking part (19) can abut to axially limit the push rod (20), the rear side of the mounting hole / slot (18) is provided with a mounting part (23), the mounting part (23) is sleeved with the rear end of the spring (21), in the initial state of the blade (4) being pressed, the blade (4) pushes the push rod (20) back to compress the spring (21), and the axial limiting part (22) and the blocking part (19) are in a separated state.

11. The floor brush of claim 10, wherein the brush is a spiral brush. The rear side of the blade (4) is provided with a back plate (24), and the rear side surface of the back plate (24) can abut to the front end of the push rod (20).

12. The floor brush of claim 11, wherein the brush is a bristle brush. For the case that the water outlet (2) is arranged in the accommodating portion (6), the bottom plate portion (11) of the scraper (4) and the back plate (24) form an L-shaped structure, and the back plate (24) is located between the rear side of the water outlet (2) and the rear side of the accommodating portion (6) to form a moving space (28) for accommodating the back plate (24).

13. A scrubber, comprising a machine body and a floor brush, the machine body being connected with the floor brush at a lower end thereof, characterized in that, The floor brush adopts the floor brush of any one of claims 1 to 12.

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