Floor brush and cleaning equipment

Abstract

The utility model relates to a floor brush and cleaning equipment, the floor brush comprises a floor brush main body, a scraping strip and a floating driving structure, the scraping strip and the floating driving structure are arranged on the floor brush main body, the floating driving structure comprises a motor driving module, a main hydraulic module and at least two auxiliary hydraulic modules, the main hydraulic module comprises a main hydraulic cylinder and a main transmission piston rod, each auxiliary hydraulic module comprises an auxiliary hydraulic cylinder and an auxiliary transmission piston rod, the power output end of the motor driving module is connected with the main transmission piston rod, and the main hydraulic cylinder is in hydraulic communication with the auxiliary hydraulic cylinders of the at least two auxiliary hydraulic modules. The auxiliary transmission piston rod is used for being connected with a scraping strip so as to output floating driving force to the scraping strip. According to the floating device, errors caused by floating achieved through elastic structures such as springs can be avoided, and active adjustment of floating force and floating degree can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household appliances, in particular to a floating drive structure, a floating squeegee assembly having the same and a cleaning device. BACKGROUND

[0002] The existing handheld cleaning device such as the scrubber drier, in the cleaning process, the roll brush on the scrubber drier directly contacts the surface to be cleaned for collecting dry and wet mixed stains, so that a squeegee is usually arranged on the roll brush for continuously cleaning the stains accumulated on the roll brush in the cleaning process by extrusion, so as to ensure that the roll brush can continuously clean the ground. In order to avoid the fact that the bristles of the roll brush become shorter after long-term use, so that the squeegee cannot abut against the roll brush, a floating squeegee is currently used, so that the squeegee can always contact the roll brush to clean the roll brush. In the prior art, the squeegee is achieved by a spring or other elastic structure, however, due to the assembly error and the spring force error, the water content of the roll brush of each scrubber drier is different, the running current of the roll brush is different, and since the spring stroke is related to the spring force, the squeegee can only be passively adjusted by the abutting force of the roll brush during use, and the floating degree of the floating squeegee cannot be actively adjusted.

[0003] The information disclosed in this section of the background art is only intended to increase the understanding of the general background of the present application and should not be considered as admitting or implying that this information constitutes prior art that is known to those of ordinary skill in the art. SUMMARY

[0004] The present application relates to the field of household appliances, in particular to a floating drive structure, a floating squeegee assembly having the same and a cleaning device.

[0005] In a first aspect, the present application provides a roll brush, characterized in that it comprises:

[0006] a roll brush body;

[0007] a squeegee and a floating drive structure arranged on the roll brush body;

[0008] the floating drive structure comprises a motor drive module, a main hydraulic module and at least two auxiliary hydraulic modules;

[0009] The main hydraulic module comprises a main hydraulic cylinder and a main transmission piston rod located at one end of the main hydraulic cylinder, and the auxiliary hydraulic module comprises an auxiliary hydraulic cylinder and an auxiliary transmission piston rod located at one end of the auxiliary hydraulic cylinder.

[0010] The power output end of the motor driving module is connected with the main transmission piston rod, and the main hydraulic cylinder is in hydraulic communication with the auxiliary hydraulic cylinder of the at least two auxiliary hydraulic modules respectively; the motor driving module drives the main transmission piston rod to move back and forth, so as to cause the volume change of the hydraulic fluid in the main hydraulic cylinder and the auxiliary hydraulic cylinder, and then drive the back and forth movement of the auxiliary transmission piston rod.

[0011] The auxiliary transmission piston rod is used to be connected with the scraping strip to output the floating driving force to the scraping strip.

[0012] In combination with the first aspect of the present application, in an optional embodiment, the motor driving module comprises a motor, a screw rod and a sliding block assembly, the screw rod is arranged at the output end of the motor, the sliding block assembly is sleeved on the screw rod, and the sliding block assembly is adapted to be connected with the main transmission piston rod; the sliding block assembly comprises a sliding block, and the sliding block is threadedly connected with the screw rod.

[0013] In combination with the first aspect of the present application, in an optional embodiment, the sliding block assembly further comprises a first connecting piece, the first connecting piece is located at the side of the sliding block away from the motor, and the first connecting piece is fixedly connected with the sliding block; the first connecting piece has a through hole for the screw rod to pass through, and a first connecting part connected with the main transmission piston rod.

[0014] In combination with the first aspect of the present application, in an optional embodiment, the first connecting part has a first positioning shaft, the main transmission piston rod has a first connecting lug, and the first connecting lug is provided with a first positioning hole matched with the first positioning shaft.

[0015] In combination with the first aspect of the present application, in an optional embodiment, in the movement direction of the sliding block assembly, the first connecting piece has a first limiting end face away from the motor and a second limiting end face facing the motor, and the first limiting end face and the second limiting end face are used to cooperate with a limiting module to limit the movement stroke of the sliding block assembly.

[0016] In combination with the first aspect of the present application, in an optional embodiment, the limiting module comprises a first limiting switch corresponding to the first limiting end face and a second limiting switch corresponding to the second limiting end face, and the first limiting switch and the second limiting switch are both used to control the start and stop of the motor.

[0017] In combination with the first aspect of the present application, in an optional embodiment, the main hydraulic module further comprises a main hydraulic connector arranged at the other end of the main hydraulic cylinder, and the auxiliary hydraulic module further comprises an auxiliary hydraulic connector arranged at the other end of the auxiliary hydraulic cylinder, and the main hydraulic connector and the auxiliary hydraulic connector are connected in communication through a hydraulic pipeline.

[0018] In combination with the first aspect of the present application, in an optional implementation, the angle between the axial direction of the main hydraulic cylinder and the axial direction of the auxiliary hydraulic cylinder is 80-100°, and the angle between the axial direction of the main hydraulic cylinder and the transmission direction of the screw rod is 0-10°.

[0019] In combination with the first aspect of the present application, in an optional implementation, the floor brush further comprises a scraper mounting portion, the scraper is mounted on the scraper mounting portion, the second connecting portion is connected to the side of the auxiliary transmission piston rod away from the auxiliary hydraulic cylinder, and the second connecting portion is connected to the scraper mounting portion.

[0020] In combination with the first aspect of the present application, in an optional implementation, the end of the auxiliary transmission piston rod away from the auxiliary hydraulic cylinder is provided with a second connecting lug, the second connecting lug is provided with a second positioning hole, and the end of the second connecting portion facing the second connecting lug is provided with a third positioning hole corresponding to the second positioning hole, the second positioning hole and the third positioning hole are used to pass a second positioning shaft.

[0021] In combination with the first aspect of the present application, in an optional implementation, the end of the second connecting portion away from the second connecting lug is provided with a first pivoting hole, the scraper mounting portion is provided with a third connecting portion, the third connecting portion is provided with a second pivoting hole corresponding to the first pivoting hole, and the first pivoting hole and the second pivoting hole are used to pass a pivoting shaft.

[0022] In combination with the first aspect of the present application, in an optional implementation, the thrust value of the auxiliary hydraulic cylinder is 5-15 N.

[0023] The second aspect of the present application further provides a cleaning device comprising the floor brush, the floor brush comprises a rolling brush, and the scraper can be in floating abutment with the rolling brush under the driving of the floating driving structure.

[0024] Compared with the prior art, the floating driving structure of the floor brush can exert floating driving force on the scraping strip, the moving stroke of the main and auxiliary transmission piston rods can be controlled by adjusting parameters such as motor running time and running voltage, active adjustment of floating force and floating degree can be realized, thereby active adjustment of the floating distance of the scraping strip and the interference amount between the scraping strip and the roller brush can be realized, the water content of the roller brush can be controlled by adjusting the interference amount between the scraping strip and the roller brush, thereby the specific needs of different users for the dry and wet degree of mopping can be met, and the use experience of the user is improved; compared with the elastic structure such as a spring, the adjustment of the floating force and the floating degree is more fine, so that the scraping strip can always keep the required abutting state with the roller brush, thereby the best cleaning effect on the roller brush is ensured; the floating driving is realized by adopting hydraulic transmission, the hydraulic transmission has the advantages of stable transmission and quick response, the problem that the water content of the roller brush of each scrubber is different and the running current of the roller brush is different due to the assembly error of the elastic structure such as a spring and the error of the spring itself is avoided, and quick floating adjustment can be realized.

[0025] According to the floor brush, when the scraping strip is subjected to greater reverse pushing force of the roller brush, the scraping strip can be smoothly retracted, the scraping strip is protected from damage by the reverse impact force, and stable, quick and stepless floating is realized.

[0026] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the content of the specification can be implemented, the following is the preferred embodiment of the utility model and the detailed description of the drawings. The specific embodiment of the utility model is given in detail by the following examples and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application, the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0028] Figure 1 Part structure diagram of the floating driving structure of the floor brush provided in the embodiment of the utility model Figure One ;

[0029] Figure 2 Part structure diagram of the floating driving structure of the floor brush provided in the embodiment of the utility model Figure Two ;

[0030] Figure 3 Part structure diagram of the floating driving structure of the floor brush provided in the embodiment of the utility model Figure Three ;

[0031] Figure 4Part structure diagram of floating drive structure of floor brush Figure Four ;

[0032] Figure 5 Part structure diagram of floating drive structure of floor brush Figure Five ;

[0033] Figure 6 Cooperation structure diagram of floating drive structure and scraping strip of floor brush

[0034] Figure 7 Part structure diagram of floating drive structure of floor brush Figure Six ;

[0035] Figure 8 Structure diagram of scraping strip mounting portion of floor brush

[0036] Figure 9 Part structure diagram of floor brush Figure One ;

[0037] Figure 10 Part structure diagram of floor brush Figure Two .

[0038] Reference signs:

[0039] 1-motor drive module;11-motor;12-screw;13-sliding block assembly;131-sliding block;132-first connecting piece;1321-perforation;1322-first connecting part;13221-first positioning shaft;1323-first limiting end face;1324-second limiting end face;

[0040] 2-main hydraulic module;21-main hydraulic cylinder;22-main transmission piston rod;221-first connecting lug;2211-first positioning hole;23-main hydraulic connector;

[0041] 3-vice hydraulic module;31-vice hydraulic cylinder;32-vice transmission piston rod;321-second connecting lug;3211-second positioning hole;33-vice hydraulic connector;

[0042] 4-limiting module;41-first limiting switch;42-second limiting switch;

[0043] 5-water distributor assembly;51-water distributor;511-second pivot hole;52-scraping strip;521-scraping tooth;

[0044] 6 - second connecting portion; 61 - third positioning hole; 62 - second positioning shaft; 63 - first pivot hole; 64 - pivot shaft;

[0045] 7 - ground brush body; 71 - motor fixing seat; 72 - auxiliary hydraulic cylinder sleeve; 73 - main hydraulic cylinder sleeve. DETAILED DESCRIPTION

[0046] In order to make the technical scheme and beneficial effects of the utility model more obvious and easy to understand, the following will be described in detail by enumerating specific embodiments. Among them, the drawings are not necessarily drawn to scale, and local features can be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used in this paper have the same meaning as the technical and scientific terms in the technical field to which this application belongs.

[0047] In the description of the utility model, the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the directions or positional relationships shown in the drawings, and are only for the convenience of the simplified description of the utility model, and are not indicative of the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, that is, cannot be understood as a limitation on the utility model.

[0048] In the utility model, the terms "first" and "second" are only for the purpose of clear description, and cannot be understood as the relative importance of the indicated features or the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc. The meaning of "several" is at least one, such as one, two, three, etc. Except for the specific limitation.

[0049] In the utility model, unless otherwise defined, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be broadly understood. For example, "connection" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, or the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0050] In the present utility model, unless otherwise expressly limited, the first feature is "on", "over", "above" and "top" of the second feature, "under", "below" or "underneath" of the second feature can be direct contact of the first feature and the second feature, or indirect contact of the first feature and the second feature through an intermediate medium. Moreover, the first feature is "over", "above" and "top" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature. The first feature is "under", "below" and "underneath" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0051] As described in the background, in the prior art, the scraping strip in the handheld cleaning device such as the scrubber is achieved by a spring or other elastic structure to float, however, this structure is prone to cause the water content of the rolling brush of each scrubber to be different and the running current of the rolling brush to be different due to assembly errors and spring force errors, and since the spring stroke is related to the spring force, the floating degree of the floating scraping strip cannot be actively adjusted.

[0052] To solve the above technical problems, the utility model provides a ground brush and cleaning equipment, adopt hydraulic transmission to realize floating drive, because hydraulic transmission has the advantages of stable transmission and quick response, can avoid the error caused by the spring or other elastic structure to realize floating, and can quickly realize floating adjustment, and adopt motor drive hydraulic module, can control the moving stroke of the main and auxiliary transmission piston rods through adjusting the motor running time, running voltage and other parameters, can realize the active adjustment of floating force and floating degree.

[0053] Embodiment one

[0054] As Figures 1-10 shown, taking the scrubber as an example, the embodiment provides a ground brush, the ground brush comprises a ground brush main body 7, a scraping strip 52 and a floating drive structure provided on the ground brush main body 7, wherein the floating drive structure comprises a motor drive module, a main hydraulic module 2 and at least two auxiliary hydraulic modules 3, specifically, the main hydraulic module 2 comprises a main hydraulic cylinder 21 and a main transmission piston rod 22, the main transmission piston rod 22 is protruded from one end (the left end of the main hydraulic cylinder 21 is shown in the figure) of the main hydraulic cylinder 21, the auxiliary hydraulic module 3 comprises an auxiliary hydraulic cylinder 31 and an auxiliary transmission piston rod 32, the auxiliary transmission piston rod 32 is protruded from one end (the right end of the auxiliary hydraulic cylinder 31 is shown in the figure) of the auxiliary hydraulic cylinder 31, the scraping strip 52 is arranged on the main transmission piston rod 22 and the auxiliary transmission piston rod 32. Figure 1 Figure 1 ​The auxiliary hydraulic cylinder 31 (shown in the image) has an auxiliary transmission piston rod 32 extending from its front end. The power output end of the motor drive module 1 is connected to the main transmission piston rod 22. The main hydraulic cylinder 21 is hydraulically connected to the auxiliary hydraulic cylinder 31 of each auxiliary hydraulic module 3, meaning that the hydraulic oil circuits between each auxiliary hydraulic module 3 and the main hydraulic module 2 are connected in parallel. The motor drive module 1 drives the main transmission piston rod 22 to move back and forth, thereby causing a change in the volume of the hydraulic fluid in the main hydraulic cylinder 21 and the auxiliary hydraulic cylinder 31, which in turn drives the auxiliary transmission piston rod 32 to move back and forth. The auxiliary transmission piston rod 32 is used to connect with the scraper 52 to output a floating driving force to the scraper 52. It should be noted that... Figures 9-10 The top cover of the brush body 7 was removed, and only some components related to the floating drive structure and scraper in this application were shown inside the brush body 7; the other components were not shown.

[0055] Furthermore, the main hydraulic module 2 also includes a main hydraulic connector 23 located at the other end of the main hydraulic cylinder 21, and the auxiliary hydraulic module 3 also includes an auxiliary hydraulic connector 33 located at the other end of the auxiliary hydraulic cylinder 31; those skilled in the art will understand that the other end of the main hydraulic cylinder 21 ( Figure 1 The image shows the right end of the main hydraulic cylinder 21 and the other end of the auxiliary hydraulic cylinder 31. Figure 1 The hydraulic connection between the main hydraulic cylinder 21 (shown as the rear end of the auxiliary hydraulic cylinder 31) is achieved in the following way: both the main hydraulic cylinder 21 and the auxiliary hydraulic cylinder 31 store hydraulic fluid, such as hydraulic oil. The main hydraulic cylinder 21 is connected to the main hydraulic connector 23, and the auxiliary hydraulic cylinder 31 is connected to the auxiliary hydraulic connector 33. The main hydraulic connector 23 and the auxiliary hydraulic connector 33 are connected by a hydraulic pipeline. Thus, the hydraulic oil between the main hydraulic cylinder 21 and the auxiliary hydraulic cylinder 31 is interconnected.

[0056] In the above technical solution, by setting up a motor drive module 1, the main drive piston rod 22 is driven to move to the right. The movement of the main drive piston rod 22 causes a change in the hydraulic pressure of the main hydraulic cylinder 21. Since the main hydraulic cylinder 21 and the auxiliary hydraulic cylinder 31 are hydraulically interconnected, the hydraulic oil in the main hydraulic cylinder 21 flows into the auxiliary hydraulic cylinder 31. The change in the amount of hydraulic oil in the auxiliary hydraulic cylinder 31 also causes a change in the hydraulic pressure of the auxiliary hydraulic cylinder 31, which in turn causes the auxiliary drive piston rod 32 to move to the right as the hydraulic pressure changes. The auxiliary drive piston rod 32 moves forward and backward, thus outputting a floating driving force to the scraper 52 connected to it. When the scraper 52 needs to retract under force, it pushes the auxiliary drive piston rod 32 to move backward, thereby causing the hydraulic oil in the auxiliary hydraulic cylinder 31 to flow back into the main hydraulic cylinder 21. The motor drive module 1 can drive the main drive piston rod 22 to move to the left, providing storage space for the hydraulic oil flowing back into the main hydraulic cylinder 21. Thus, the scraper 52 is protected from damage by force, and stable floating is achieved.

[0057] The technical solution above connects the floating driving structure with the scraping strip, so that the floating driving structure can exert a floating driving force on the scraping strip, the movement stroke of the main and auxiliary transmission piston rods is controlled by adjusting parameters such as motor running time and running voltage, active adjustment of the floating force and the floating degree is achieved, thereby active adjustment of the floating distance of the scraping strip and the interference amount between the scraping strip and the rolling brush is achieved, and by adjusting the interference amount between the scraping strip and the rolling brush, the water content of the rolling brush can be controlled, thereby the specific needs of different users for the dry and wet degree of mopping can be met, and the use experience of the user is improved; and compared with the elastic structure such as a spring, the adjustment of the floating force and the floating degree is more fine, so that the scraping strip can always maintain the required abutting state with the rolling brush, thereby the best cleaning effect on the rolling brush is ensured; the floating driving is achieved by using hydraulic transmission, which has the advantages of stable transmission and fast response, and can avoid the problems that the water content of the rolling brush of each scrubber is different and the running current of the rolling brush is different due to the assembly error of the elastic structure such as a spring and the error of the spring force itself, and fast floating adjustment can be achieved.

[0058] It can be understood that after the rolling brush is used for a period of time, it is necessary to adjust the scraping strip to make the scraping strip fit the rolling brush, or in the scenario that the user needs to adjust the water content of the rolling brush according to the needs, the main hydraulic module 2 and the auxiliary hydraulic module 3 are driven by the motor driving module 1, so that the auxiliary transmission piston rod 32 drives the scraping strip to be adjusted, which is convenient and fast, and the user experience is good.

[0059] In some cases, during the working process of the scrubber, the rolling brush and the scraping strip may suddenly be subjected to a large impact force, for example, when the rolling brush suddenly collides with a sharp object, a corner, furniture, etc., the scraping strip will be subjected to a large reverse pushing force of the rolling brush, at this time, according to the structure of the present application, the scraping strip is forced to retreat backward, pushing the auxiliary transmission piston rod 32 to move backward, thereby causing the hydraulic oil in the auxiliary hydraulic cylinder 31 to flow back into the main hydraulic cylinder 21, and the motor 11 can drive the main transmission piston rod 22 to move leftward, providing a backflow space for the hydraulic oil flowing back into the main hydraulic cylinder 21, thereby protecting the scraping strip from damage by the reverse impact force, and achieving smooth, fast and stepless floating.

[0060] For example, Figure 6As shown, the number of the sub-hydraulic modules 3 is selected as two, and the two sub-hydraulic modules 3 are arranged on the two sides of the scraping strip 521 respectively, and the hydraulic oil paths between the two sub-hydraulic modules 3 and the main hydraulic module 2 are connected in parallel with each other, for example, the two sub-hydraulic joints 33 and the main hydraulic joint 23 are connected by using a tee structure, so that the two sub-transmission piston rods 32 form a parallel structure, and the two sub-transmission piston rods 32 drive the scraping strip independently, and compared with the single sub-hydraulic module 3, this structure arrangement enables the scraping strip to keep a better and more comprehensive abutting state with the rolling brush, especially in the case that the connection between the sub-hydraulic module 3 and the scraping strip is arranged as a pivotal connection, the scraping strip can float more flexibly to ensure that it is always attached to the rolling brush.

[0061] Optionally, as shown in Figure 1 、 Figures 4-5 The motor driving module 1 includes a motor 11, a lead screw 12, and a sliding block assembly 13, the lead screw 12 is arranged on the output end of the motor 11, and the sliding block assembly 13 is sleeved on the lead screw 12, and the sliding block assembly 13 is adapted to be connected with the main transmission piston rod 22; the sliding block assembly 13 includes a sliding block 131, and the sliding block 131 is threadedly connected with the lead screw 12. By driving the lead screw 12 and the sliding block 131 by the motor 11, the driving force of the motor 11 can be stably transmitted to the hydraulic driving module. As an optional embodiment, a speed reducer is further arranged between the motor 11 and the lead screw 12, and further optionally, the speed reducer can be a gear speed reducer. By arranging the speed reducer, the transmission speed and the moving position of the sliding block 131 can be more accurately controlled.

[0062] Optionally, as shown in Figures 2-5 The sliding block assembly 13 further includes a first connecting piece 132, the first connecting piece 132 is located on the side of the sliding block 131 away from the motor 11, and the first connecting piece 132 is fixedly connected with the sliding block 131; the first connecting piece 132 has a through hole 1321 for the lead screw 12 to pass through, and a first connecting portion 1322 connected with the main transmission piston rod 22. The first connecting piece 132 serves as a connecting component between the motor driving module 1 and the hydraulic transmission module, and transmits the driving force of the motor driving module 1 to the main transmission piston rod 22.

[0063] Further optionally, as shown in Figures 3-4As shown, the first connecting part 1322 has a first positioning shaft 13221, the main transmission piston rod 22 has a first connecting lug 221, and the first connecting lug 221 is provided with a first positioning hole 2211 matched with the first positioning shaft 13221. The first positioning shaft 13221 is inserted into the first positioning hole 2211 to realize the connection between the first connecting part 1322 and the main transmission piston rod 22. Compared with the connection means such as threaded fixing and welding fixing, the structure matched with the positioning shaft and the positioning hole is simpler and easier to install and disassemble. Of course, in some alternative embodiments, the first connecting part 1322 and the main transmission piston rod 22 can also be connected by using threaded fixing, welding fixing and other connection structures according to specific needs.

[0064] Optionally, as shown in Figure 2 , Figure 3 and Figure 5 , in the movement direction of the slider assembly 13, the first connecting piece 132 has a first limiting end face 1323 away from the motor 11 and a second limiting end face 1324 facing the motor 11, and the first limiting end face 1323 and the second limiting end face 1324 are used to cooperate with the limiting module 4 to limit the movement stroke of the slider assembly 13. By limiting the movement stroke of the slider assembly 13, the floating degree of the secondary transmission piston rod 32 is limited, so as to prevent the damage caused by the excessive pressure applied to the roller brush and / or the scraping strip by the transmission piston rod 32. Exemplarily, the second limiting end face 1324 is located on the extension protrusion of the first connecting piece 132 facing the motor 11, and the second limiting end face 1324 is flush with the end face of the slider 131.

[0065] Further optionally, as shown in Figures 1-3 , the limiting module 4 includes a first limiting switch 41 corresponding to the first limiting end face 1323 and a second limiting switch 42 corresponding to the second limiting end face 1324, and the first limiting switch 41 and the second limiting switch 42 are both used to control the start and stop of the motor 11. By setting the limiting switch matched with the limiting end face of the first connecting piece 132, when the slider assembly 13 moves to the limiting position, the limiting switch is triggered and sends a signal to the controller, so as to control the start and stop of the motor 11. As shown in Figures 9-10 , the first limiting switch 41 and the second limiting switch 42 are installed in the brush body 7.

[0066] Optionally, the brush further includes a scraping strip mounting part, and the scraping strip is mounted on the scraping strip mounting part. Exemplarily, as shown in Figures 6-8As shown, the wiper strip can be part of the water distributor assembly 5, wherein the water distributor assembly 5 comprises a water distributor 51 which can serve as a wiper strip mounting portion, and a wiper strip 52 is mounted below the water distributor 51; the second connecting portion 6 is connected to the side of the secondary transmission piston rod 32 away from the secondary hydraulic cylinder 31, and the second connecting portion 6 is connected to the wiper strip mounting portion, i.e. the water distributor 51. Further optionally, the end of the secondary transmission piston rod 32 away from the secondary hydraulic cylinder 31 has a second connecting lug 321, and the second connecting lug 321 is provided with a second positioning hole 3211, and the end of the second connecting portion 6 facing the second connecting lug 321 is provided with a third positioning hole 61 corresponding to the second positioning hole 3211, and the second positioning hole 3211 and the third positioning hole 61 are used to pass a second positioning shaft 62. The second positioning shaft 62 is inserted into the first positioning hole 2211, realizing the connection between the second connecting portion 6 and the secondary transmission piston rod 32. Compared with threaded fixing, welding fixing and other connection means, the structure of the positioning shaft and the positioning hole matched is simpler and easier to install and disassemble. Of course, in some alternative embodiments, the second connecting portion 6 and the secondary transmission piston rod 32 can also be connected by threaded fixing, welding fixing and other connection structures according to specific needs.

[0067] As shown in Figure 6 , Figures 9-10 , when the number of secondary hydraulic modules 3 is two, the two secondary hydraulic modules 3 are respectively arranged at the two end sides of the water distributor assembly 5 and are substantially symmetrical to the center line of the water distributor assembly 5; in some alternative embodiments, the number of secondary hydraulic modules 3 can be more than three, and can be adaptively arranged according to the specific floating abutment needs.

[0068] Optionally, as shown in Figures 6-8 , the end of the second connecting portion 6 away from the second connecting lug 321 is provided with a first pivoting hole 63; the wiper strip mounting portion, i.e. the water distributor 51, has a third connecting portion with a second pivoting hole 511 corresponding to the first pivoting hole 63, and the first pivoting hole 63 and the second pivoting hole 511 are jointly provided with a pivoting shaft 64. By pivoting the water distributor assembly 5 and the second connecting portion 6, the floating of the wiper strip is more flexible. It can be understood that the wiper strip 52 is not limited to being mounted on the water distributor 51, but can be mounted on other parts of the ground brush as needed.

[0069] Optionally, as shown in Figure 6 , the wiper strip 52 has a comb-shaped wiper tooth 521 which can penetrate into the root of the rolling brush, and cooperate with the high-speed rotation of the rolling brush to better rotate and take out stubborn stains such as particles and hair.

[0070] Optionally, the thrust value of each auxiliary hydraulic cylinder 31 is 5N-15N, and by adjusting the operation time, operation voltage and other parameters of the motor, the moving stroke of the slider assembly 13 can be controlled, and then the hydraulic thrust of each auxiliary hydraulic cylinder 31 can be controlled.

[0071] Optionally, as shown in Figure 1 the axial direction of the main hydraulic cylinder 21 is substantially perpendicular to the axial direction of the auxiliary hydraulic cylinder 31, and the transmission direction of the lead screw 12 is substantially parallel to the axial direction of the main hydraulic cylinder 21. By designing the axial direction of the main hydraulic cylinder 21 and the axial direction of the auxiliary hydraulic cylinder 31 to be "bent", the layout of the main hydraulic cylinder 21, the auxiliary hydraulic cylinder 31 and the motor driving module 1 is more reasonable, the structure is more compact, the space is saved, and then the assembly of the hydraulic components and the realization of the hydraulic transmission can be realized in the limited brush space. Further optionally, considering the assembly error, the included angle between the axial direction of the main hydraulic cylinder 21 and the axial direction of the auxiliary hydraulic cylinder 31 is 80°-100°, but preferably 90°; the included angle between the axial direction of the main hydraulic cylinder 21 and the transmission direction of the lead screw 12 is 0°-10°, but preferably 0°.

[0072] Optionally, as shown in Figures 9-10 In order to facilitate the installation of the main hydraulic cylinder 21, the auxiliary hydraulic cylinder 31 and the motor driving module 1, the main hydraulic module 2 and the motor driving module 1 are arranged on one side of one of the auxiliary hydraulic modules 3, so that other components such as dust suction components, water supply pumps and the like can be installed between the two auxiliary hydraulic modules 3; and the axial direction of the main hydraulic cylinder 21 is substantially perpendicular to the axial direction of the auxiliary hydraulic cylinder 31, and the transmission direction of the lead screw 12 is substantially parallel to the axial direction of the main hydraulic cylinder 21. Further, the main hydraulic module 2 and the motor driving module 1 are arranged side by side, and the auxiliary hydraulic cylinder 31 module is arranged above the main hydraulic module 2 and the motor driving module 1, so that the layout of the main hydraulic cylinder 21, the auxiliary hydraulic cylinder 31 and the motor driving module 1 is more reasonable, the structure is more compact, the space is saved, and the miniaturization design of the scrubber is facilitated.

[0073] Optionally, in order to facilitate the installation of the main hydraulic cylinder 21, the auxiliary hydraulic cylinder 31 and the motor driving module 1, the main hydraulic cylinder sleeve 73, the auxiliary hydraulic cylinder sleeve 72 and the motor fixing seat 71 are correspondingly arranged in the brush main body 7. The fixing parts for installing the fixing elements are arranged on the main hydraulic cylinder sleeve 73, the auxiliary hydraulic cylinder sleeve 72 and the motor fixing seat 71, and the main hydraulic cylinder sleeve 73, the auxiliary hydraulic cylinder sleeve 72 and the motor fixing seat 71 are fixed in the brush main body 7 by the fixing elements, and then the main hydraulic cylinder 21, the auxiliary hydraulic cylinder 31 and the motor driving module 1 are fixed.

[0074] Example two

[0075] On the basis of the first embodiment, the cleaning device comprises the floor brush in the first embodiment, and the floor brush further comprises a rolling brush (not shown), and the scraping strip can be in floating abutment with the rolling brush under the driving of the floating driving structure, so as to adjust the interference amount between the scraping strip and the rolling brush, control the water content of the rolling brush, and then meet the specific needs of different users for the dry and wet degree of mopping, and improve the use experience of the user

[0076] It should be understood that the above embodiments are exemplary and are not intended to include all possible embodiments encompassed by the claims. Various modifications and changes can also be made on the basis of the above embodiments without departing from the scope of the disclosure. Similarly, any combination of the technical features of the above embodiments can also be made to form additional embodiments of the application that can not be explicitly described. Therefore, the above embodiments only express several implementation manners of the application, and do not limit the protection scope of the patent of the application.

Claims

1. A floor brush characterized by, The utility model relates to a floor brush, including: Floor brush body; Scraper strip and floating drive structure arranged in the floor brush body; The floating drive structure includes motor drive module, main hydraulic module, at least two auxiliary hydraulic modules; Wherein, the main hydraulic module includes main hydraulic cylinder and main drive piston rod located in one end of the main hydraulic cylinder, the auxiliary hydraulic module includes auxiliary hydraulic cylinder and auxiliary drive piston rod located in one end of the auxiliary hydraulic cylinder; The power output end of the motor drive module is connected with the main drive piston rod, and the main hydraulic cylinder is respectively connected with the auxiliary hydraulic cylinder of the at least two auxiliary hydraulic modules through hydraulic connection;The motor drive module drives the main drive piston rod to move back and forth, thereby causing the volume change of the hydraulic fluid in the main hydraulic cylinder and the auxiliary hydraulic cylinder, and then driving the back and forth movement of the auxiliary drive piston rod; The auxiliary drive piston rod is used to be connected with the scraper strip to output floating driving force to the scraper strip.

2. The floor brush of claim 1 wherein, The motor drive module includes motor, screw rod and sliding block assembly, the screw rod is arranged on the output end of the motor, the sliding block assembly is sleeved on the screw rod, and the sliding block assembly is adapted to be connected with the main drive piston rod;The sliding block assembly includes sliding block, and the sliding block is threadedly connected with the screw rod.

3. The floor brush of claim 2 wherein, The sliding block assembly further includes first connecting piece, the first connecting piece is located on the side of the sliding block away from the motor, and the first connecting piece is fixedly connected with the sliding block;The first connecting piece has a through hole for the screw rod to pass through, and a first connecting part connected with the main drive piston rod.

4. The floor brush of claim 3 wherein, The first connecting part has a first positioning shaft, the main drive piston rod has a first connecting lug, and the first connecting lug is provided with a first positioning hole matched with the first positioning shaft.

5. The floor brush of claim 3 wherein, In the movement direction of the sliding block assembly, the first connecting piece has a first limiting end face away from the motor and a second limiting end face facing the motor, and the first limiting end face and the second limiting end face are used to cooperate with a limiting module to limit the movement stroke of the sliding block assembly.

6. The floor brush of claim 5 wherein, The limiting module includes a first limiting switch corresponding to the first limiting end face and a second limiting switch corresponding to the second limiting end face, and the first limiting switch and the second limiting switch are used to control the start and stop of the motor.

7. The floor brush of any one of claims 1-6, wherein, The main hydraulic module further includes a main hydraulic connector arranged at the other end of the main hydraulic cylinder, and the auxiliary hydraulic module further includes an auxiliary hydraulic connector arranged at the other end of the auxiliary hydraulic cylinder, and the main hydraulic connector and the auxiliary hydraulic connector are connected through a hydraulic pipeline.

8. The floor brush of any one of claims 2-6, wherein, The included angle between the axial direction of the main hydraulic cylinder and the axial direction of the auxiliary hydraulic cylinder is 80-100 degrees, and the included angle between the axial direction of the main hydraulic cylinder and the transmission direction of the screw rod is 0-10 degrees.

9. The floor brush of any one of claims 3-4, wherein, The floor brush further includes a scraper strip mounting portion, the scraper strip is mounted on the scraper strip mounting portion, a second connecting part is connected to the side of the auxiliary drive piston rod away from the auxiliary hydraulic cylinder, and the second connecting part is connected with the scraper strip mounting portion.

10. The floor brush of claim 9, wherein, The end of the auxiliary transmission piston rod away from the auxiliary hydraulic cylinder is provided with a second connecting lug, and a second positioning hole is arranged on the second connecting lug.

11. The floor brush of claim 10 wherein, The end of the second connecting part away from the second connecting lug is provided with a first pivoting hole; the wiper strip mounting part is provided with a third connecting part, and the third connecting part is provided with a second pivoting hole corresponding to the first pivoting hole, and the first pivoting hole and the second pivoting hole are jointly provided with a pivoting shaft.

12. The floor brush of claim 1 wherein, The thrust value of the auxiliary hydraulic cylinder is 5N-15N.

13. A cleaning apparatus, characterized by The floor brush comprises a rolling brush, and the wiper strip can be in floating abutment with the rolling brush under the driving of the floating driving structure.

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