Floor scrubber

Abstract

Provided in the present application is a floor scrubber. The floor scrubber comprises a base, a first brush disk assembly, a second brush disk assembly, a drive member, a first connection rod and a second connection rod. The first brush disk assembly and the second brush disk assembly are both hinged to the base. The first brush disk assembly and the second brush disk assembly each comprise a brush disk, the two brush disk assemblies are configured to be symmetrical relative to a vertical plane passing through the drive member, and rotation directions of the two brush disks are opposite. The first connection rod is connected to the first brush disk assembly, the second connection rod is connected to the second brush disk assembly, and the drive member can synchronously drive the first connection rod and the second connection rod, such that the brush disk of the first brush disk assembly and the brush disk of the second brush disk assembly are configured to be adjustable between a state of being symmetrically inclined relative to a surface to be cleaned and a state of being parallel to the surface to be cleaned.

Description

Floor cleaning machine TECHNICAL FIELD

[0001] The present application relates to floor cleaning equipment, and in particular to a floor cleaning machine. BACKGROUND

[0002] Most conventional floor cleaning machines are not light enough for a user to carry and walk with the machine. It is also inconvenient to clean narrow spaces, corners, and the bottom of a table.

[0003] A small floor cleaning machine known to the inventor is provided with two brush discs installed in an inclined manner (as shown in FIG. 1), which rotate to generate a continuous linear propulsion force when the machine is running, so that it is easier for a user to operate the machine to move forward. However, the machine will continuously move forward, and if it is necessary to make the machine run in place, the user needs to provide more force to overcome the driving force of the machine itself moving forward, which is a poor user experience. SUMMARY

[0004] To solve or alleviate at least one problem mentioned in the background, the present application provides a floor cleaning machine.

[0005] The floor cleaning machine provided by the embodiments of the present application comprises:

[0006] a base;

[0007] a first brush disc assembly and a second brush disc assembly, both of which are hinged to the base;

[0008] a driving member, the first brush disc assembly and the second brush disc assembly each comprising a brush disc, both brush disc assemblies being configured to be symmetrical with respect to a vertical plane passing through the driving member and the rotation directions of the two brush discs being opposite;

[0009] a first connecting rod connected to the first brush disc assembly and a second connecting rod connected to the second brush disc assembly, the driving member being capable of synchronously driving the first connecting rod and the second connecting rod, so that the brush disc of the first brush disc assembly and the brush disc of the second brush disc assembly are configured to be adjustable between a state of being symmetrically inclined with respect to a surface to be cleaned and a state of being parallel to the surface to be cleaned.

[0010] In an embodiment of the present application, the floor cleaning machine comprises an operating rod, which is hinged to the base and can press down the driving member after being turned.

[0011] In an embodiment of the present application, an end of the operating rod is provided with a cam, which is pressed against the driving member, and the distance between the driving member and the center of the cam can be changed by turning the operating rod.

[0012] In one embodiment of the present application, the end of the operating rod is provided with a mounting sleeve pressing portion, and by rotating the operating rod, the distance between the mounting sleeve pressing portion and the driving member can be reduced, and the mounting sleeve pressing portion can contact and press down the driving member.

[0013] In one embodiment of the present application, a first elastic member is arranged between the driving member and the base, so that after the operating rod is rotated and reset, the driving member can be reset and lifted under the elastic action of the first elastic member.

[0014] In one embodiment of the present application, the first brush disc assembly includes a first end close to the second brush disc assembly and a second end away from the second brush disc assembly, and the first connecting rod is connected to the first end.

[0015] In one embodiment of the present application, one end of the first connecting rod is hinged to one end of the second connecting rod as a hinged end, the top of the hinged end is provided with a limiting block, the driving member passes through the limiting block and presses against the top of one end of the first connecting rod or the top of one end of the second connecting rod, and the other end of the first connecting rod is fixedly connected to the first brush disc assembly.

[0016] In one embodiment of the present application, one end of the first connecting rod is hinged to the driving member, the other end of the first connecting rod is hinged to the first end, and the base is provided with a connecting rod support, and the middle part of the first connecting rod is hinged to the base through the connecting rod support.

[0017] In one embodiment of the present application, when the scrubber is in a straight-line advancing state, the second end is higher than the first end, the scrubber further includes an operating rod hinged to the base, the hinged position is located between the first brush disc assembly and the second brush disc assembly, and in the orthographic projection of the surface to be cleaned, the angle between the rotation axis of the operating rod and the line connecting the first brush disc assembly and the second brush disc assembly is not more than 10°.

[0018] In one embodiment of the present application, a second elastic member is arranged between the second end and the base, and the scrubber includes a pressing bracket hinged to the base, and the pressing bracket includes a pressing bracket pressing portion pressing against the second end.

[0019] In one embodiment of the present application, the scrubber includes a fixed bracket, the fixed bracket includes a concave round structure, the base includes a convex round structure, the concave round structure of the fixed bracket is arranged on the convex round structure of the base to form a hinge, and the pressing bracket is fixed to the fixed bracket.

[0020] In one embodiment of the present application, the first brush disc assembly comprises:

[0021] a first brush disc motor, the first connecting rod being connected to the first brush disc motor;

[0022] a first brush disc, the first brush disc motor being connected to the first brush disc.

[0023] The brush disc assembly of the present application is arranged in a hinged relationship with the base, and the brush disc arranged obliquely can be conveniently leveled by the driving member and the connecting rod to offset the linear propulsion force of the brush disc, so that the scrubber can run in place. BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1 shows a schematic view of an obliquely arranged brush disc.

[0025] FIG. 2 shows a schematic view of a horizontally arranged brush disc.

[0026] FIG. 3 shows a schematic view of a cleaning head of a scrubber according to an embodiment of the present application.

[0027] FIG. 4 shows an exploded view of a cleaning head of a scrubber according to an embodiment of the present application.

[0028] FIG. 5 shows a hinged schematic view of a motor support and a base of a scrubber according to an embodiment of the present application.

[0029] FIG. 6 shows a cross-sectional view of a scrubber showing a driving member and a connecting rod according to an embodiment of the present application.

[0030] FIG. 7 shows a cross-sectional view of a scrubber showing a hinged relationship between a fixing support and a base from a side view perspective according to an embodiment of the present application.

[0031] FIG. 8 shows an exploded view of a scrubber according to an embodiment of the present application.

[0032] FIG. 9 shows a side view of a scrubber in a running state and a front view of a corresponding brush disc according to an embodiment of the present application.

[0033] FIG. 10 shows a side view of a scrubber in a running-in-place state and a front view of a corresponding brush disc according to an embodiment of the present application.

[0034] FIG. 11 shows a cross-sectional view of a scrubber showing a driving member and a connecting rod according to an embodiment of the present application.

[0035] FIG. 12 shows a partial enlarged view of a limiting block of the scrubber in FIG. 11.

[0036] FIG. 13 shows a cross-sectional view of a scrubber from a side view perspective according to an embodiment of the present application.

[0037] Figure 14 shows a partial enlarged view of the cam of the scrubber in Figure 13.

[0038] Figure 15 shows a schematic view of the scrubber turning right according to an embodiment of the present application.

[0039] Figure 16 shows a schematic view of the scrubber turning left according to an embodiment of the present application.

[0040] Figure 17 shows a schematic view of the fixed support and the base of the scrubber in a hinged relationship according to an embodiment of the present application.

[0041] Figure 18 shows a schematic view of the fixed support and the base of the scrubber in a fixed relationship according to an embodiment of the present application.

[0042] Figure 19 shows a parts exploded view of the operating lever of the scrubber according to an embodiment of the present application.

[0043] Figure 20 shows a structural enlarged view of the reset elastic member 630 of the scrubber according to an embodiment of the present application.

[0044] Figure 21 shows a front view of the scrubber according to an embodiment of the present application.

[0045] Figure 22 shows a schematic view of the scrubber automatically returning to the right after turning right according to an embodiment of the present application.

[0046] Figure 23 shows a schematic view of the scrubber automatically returning to the left after turning left according to an embodiment of the present application.

[0047] Figure 24 shows a schematic view of the first connecting rod of the scrubber in Figure 11.

[0048] Figure 25 shows a schematic view of the telescopic rod of the scrubber according to an embodiment of the present application.

[0049] Figure 26 shows a partial enlarged view of the rotating support of the scrubber in Figure 13.

[0050] Figure 27 shows a schematic view of the fixed support and the rotating support of the scrubber according to an embodiment of the present application.

[0051] Figure 28 shows a sectional schematic view of the fixed support and the rotating support of the scrubber according to an embodiment of the present application. DETAILED DESCRIPTION

[0052] The exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. It should be understood that the specific description is only for teaching the person skilled in the art how to implement the present application, and is not intended to exhaust all possible ways of the present application, nor to limit the scope of the present application.

[0053] Referring to FIG. 21, the present application provides a scrubber, which can be a walk-behind scrubber. Of course, the present application does not limit the specific form of the scrubber.

[0054] In an embodiment of the present application, referring to FIG. 3, the scrubber can include a cleaning head 800, which can include a base 100, a first brush disc assembly 200, and a second brush disc assembly 300. The first brush disc assembly 200 and the second brush disc assembly 300 can be hinged to the base 100, so that the brush disc assemblies can rotate relative to the base 100. The first brush disc assembly 200 and the second brush disc assembly 300 respectively include brush discs (e.g., the first brush disc 220 and the second brush disc 310) and the rotation directions of the two brush discs are opposite.

[0055] This arrangement allows the inclination between the brush discs and the surface to be cleaned 700 (e.g., the ground) to be adjusted. For example, as shown in FIG. 1, the brush discs can be inclined to the surface to be cleaned 700; or as shown in FIG. 2, the brush discs can be parallel to the surface to be cleaned 700. It can be understood that the brush discs being parallel to the surface to be cleaned 700 can be equivalent to the rotation axes of the brush discs being perpendicular to the surface to be cleaned 700.

[0056] Referring to FIG. 3, the scrubber can further include a first connecting rod 420, a second connecting rod 430, and a driving member 410. The first connecting rod 420 can be connected (including hinged, fixedly connected, etc., which will be described later) to the first brush disc assembly 200, and the second connecting rod 430 can be connected (including hinged, fixedly connected, etc., which will be described later) to the second brush disc assembly 300. The brush disc of the first brush disc assembly 200 and the brush disc of the second brush disc assembly 300 are configured to be symmetrical relative to a vertical plane passing through the driving member 410 (e.g., a vertical plane formed by the driving member 410 and the A direction shown in FIG. 4).

[0057] The driving member 410 can synchronously drive the first connecting rod 420 and the second connecting rod 430, so that the brush disc of the first brush disc assembly 200 and the brush disc of the second brush disc assembly 300 are configured to be adjustable between the states of being symmetrically inclined relative to the surface to be cleaned 700 or being parallel to the surface to be cleaned 700.

[0058] Referring to FIG. 1, taking the first brush disc 220 on the right side as an example, the pressure between the left side portion 2201 of the first brush disc 220 and the surface to be cleaned 700 is greater, and the pressure between the right side portion 2202 of the first brush disc 220 and the surface to be cleaned 700 is smaller. In combination with the second brush disc 310 on the left side having the opposite rotation direction, the scrubber described in the background art can generate a linear propulsion force through the brush discs.

[0059] Referring to FIG. 2, when the brush disc is parallel to the surface to be cleaned 700, the left side 2201 and the right side 2202 of the first brush disc 220 have the same pressure with the surface to be cleaned 700, and the second brush disc 310 has the same pressure with the surface to be cleaned 700, so that the linear propulsion forces in the forward direction and the backward direction are offset, and the scrubber can be kept in the original position, that is, the scrubber can have two working states, the forward state and the stationary state, so that the user can save more energy and have a better experience.

[0060] In an embodiment of the present application, referring to FIGS. 9, 10, 6, 12 and 13, the scrubber can comprise an operating rod 500, which can be hinged to the base 100, and the operating rod 500 can press down the driving member 410 after being rotated, so as to adjust the tilt posture of the brush disc. Of course, the present application does not limit the specific implementation of the operating rod 500 pressing down the driving member 410.

[0061] For example, in an embodiment of the present application, referring to FIGS. 13 and 14, the end of the operating rod 500 can be provided with a cam 510, which can press against the driving member 410, and the distance between the driving member 410 and the center of the cam 510 can be changed by rotating the operating rod 500, so as to adjust the pressing degree of the driving member 410.

[0062] When the operating rod 500 is inclined to the surface to be cleaned 700, the radius of the cam 510 is large, and the cam 510 can press down the driving member 410; when the operating rod 500 is perpendicular to the surface to be cleaned 700, the radius of the cam 510 is small, and the pressing of the driving member 410 is released. Correspondingly, referring to FIGS. 11 and 12, the driving relationship between the driving member 410 and the brush disc can be set as follows: when the driving member 410 is pressed down, the brush disc is inclined to the surface to be cleaned 700; and when the driving member 410 is lifted up, the brush disc is parallel to the surface to be cleaned 700 (to be described in detail later). In this way, the embodiment can realize that when the operating rod 500 is inclined to the surface to be cleaned 700, the driving member 410 is pressed down, and the brush disc is inclined to the surface to be cleaned 700; and when the operating rod 500 is perpendicular to the surface to be cleaned 700, the driving member 410 is lifted up, and the brush disc is parallel to the surface to be cleaned 700.

[0063] For example, in another embodiment of the present application, referring to FIGS. 6, 7 and 8, the end of the operating rod 500 is provided with a mounting sleeve pressing portion 521, the distance between the mounting sleeve pressing portion 521 and the driving member 410 can be reduced by rotating the operating rod 500, and the mounting sleeve pressing portion 521 can contact and press down the driving member 410, and the driving member 410 and the base 100 are provided with a first elastic member 120, so that after the operating rod 500 is rotated and reset, the driving member 410 can be lifted up under the elastic action of the first elastic member 120. The first elastic member 120 can be a metal spring, a pneumatic spring or the like.

[0064] In one embodiment of the present application, referring to FIGS. 6 and 7, the scrubber can include a handle mounting sleeve 520 hinged to the base 100, and the handle 500 is mounted in the handle mounting sleeve 520 so that the handle 500 is detachable for easy maintenance.

[0065] Referring to FIG. 7, the sleeve pressing portion 521 can be located at the end of the handle mounting sleeve 520, and the handle mounting sleeve 520 can be arranged substantially behind the driving member 410 so that the sleeve pressing portion 521 can press down the driving member 410 when the handle mounting sleeve 520 is turned forward. When the handle mounting sleeve 520 is turned backward, the sleeve pressing portion 521 releases the force of pressing down the driving member 410.

[0066] Correspondingly, referring to FIG. 6, the driving relationship between the driving member 410 and the brush disc can be arranged such that the brush disc is parallel to the surface to be cleaned 700 when the driving member 410 is pressed down, and the brush disc is inclined to the surface to be cleaned 700 when the driving member 410 is lifted (to be described in detail later). Furthermore, this embodiment can realize that when the handle 500 is perpendicular to the surface to be cleaned 700, the driving member 410 is pressed down, and the brush disc is parallel to the surface to be cleaned 700; when the handle 500 is inclined to the surface to be cleaned 700, the driving member 410 is lifted, and the brush disc is inclined to the surface to be cleaned 700.

[0067] For example, referring to FIG. 10, after the handle 500 is turned, for example, to the vertical state, the driving member 410 can be pressed down to keep the brush disc horizontal. Referring to FIG. 9, after the handle 500 is turned back to the inclined state, the pressing force on the driving member 410 can be released, and the brush disc returns to the inclined state.

[0068] Of course, two inclined states can also be arranged, and the first inclined state corresponds to pressing down the driving member 410, and the second inclined state corresponds to releasing the driving member 410.

[0069] The second brush disc assembly 300 can be the same as the first brush disc assembly 200, and hereinafter the first brush disc assembly 200 is taken as an example for description.

[0070] In one embodiment of the present application, referring to FIG. 6, the first brush disc assembly 200 can include a first end 231 close to the second brush disc assembly 300 and a second end 232 away from the second brush disc assembly 300. The first connecting rod 420 is connected to the first end 231. The second end 232 can be higher than the first end 231 or flush with the first end 231. For example, when the scrubber runs along a straight line, the second end 232 is higher than the first end 231. When it is needed to run in place, the second end 232 is made flush with the first end 231 to achieve the effect that the brush disc assembly (especially the brush disc therein) is parallel to the surface to be cleaned 700.

[0071] For the driving relationship between the driving member 410 and the brush disc, in one embodiment of the present application, referring to FIGS. 11 and 12, one end of the first connecting rod 420 is hinged to one end of the second connecting rod 430, and the hinged position is the hinged end 450. The top of the hinged end 450 is provided with a limiting block 130, which can be fixed to the base 100. The driving member 410 passes through the limiting block 130 and presses against the top of one end of the first connecting rod 420 or the top of one end of the second connecting rod 430. Referring to FIG. 24, the other end of the first connecting rod 420 can be fixedly connected to the first brush disc assembly 200. For example, the other end of the first connecting rod can include an annular connecting portion 421, and the first brush disc assembly 200 is fixedly connected to the annular connecting portion 421.

[0072] In the embodiment shown in FIGS. 11 and 12, when the first connecting rod 420 is tilted, the first brush disc assembly 200 is tilted accordingly. When the first connecting rod 420 is horizontal, the first brush disc assembly 200 is horizontal accordingly. When the driving member 410 presses downward through the limiting block 130, one end (the left end) of the first connecting rod 420 falls, and the other end (the right end) is raised, thereby driving the first brush disc assembly 200 to maintain the tilted posture. When the driving member 410 is not pressed, one end (the left end) of the first connecting rod 420 abuts against the bottom surface of the limiting block 130, and the first connecting rod 420 remains horizontal, so that the first brush disc assembly 200 maintains the horizontal posture.

[0073] Further, referring to FIG. 12, a third elastic member 440 can also be arranged between the driving member 410 and the limiting block 130 in the axial direction. For example, one end of the third elastic member 440 is fixedly connected to the driving member 410, and the other end abuts against the top surface of the limiting block 130. When the driving member 410 is pressed downward, the driving member 410 passes through the limiting block 130, and the third elastic member 440 is pressed against the top surface of the limiting block 130. When the pressing state of the driving member 410 is released, the driving member 410 can be timely raised due to the elastic force, without affecting the tilting conversion process of the first connecting rod 420 and the second connecting rod 430. The third elastic member 440 can be a spring.

[0074] For the driving relationship between the driving member 410 and the brush disc, in another embodiment of the present application, referring to FIG. 6, one end (the left end) of the first connecting rod 420 is hinged to the driving member 410, and the other end (the right end) of the first connecting rod 420 is hinged to the first end 231. The base 100 is provided with a connecting rod support 110, and the middle portion of the first connecting rod 420 is hinged to the base 100 through the connecting rod support 110.

[0075] Alternatively, the inclination of the brush discs can be set to be higher at the inner side and lower at the outer side. The inclination of the brush disc assemblies can be adjusted by the connecting rods shown in FIG. 12, and the cam 510 shown in FIG. 14 can be used to adjust the driving member 410, so that the two brush disc assemblies are in a horizontal state when the operating rod 500 is perpendicular to the surface to be cleaned 700. Alternatively, the driving member 410 shown in FIG. 7 can be used to adjust the inclination of the brush disc assemblies, and the connecting rods and the brush disc assemblies shown in FIGS. 11 and 12 can be used to adjust the inclination of the brush disc assemblies, so that the two brush disc assemblies are in a horizontal state when the operating rod 500 is perpendicular to the surface to be cleaned 700.

[0076] When the scrubber needs to turn, on the one hand, the pressure of one side of the brush disc on the ground can be increased, so that the friction between the two brush discs and the ground is different, the linear propulsion force generated is different, and the turning is realized. Referring to FIG. 15, for example, more pressure is applied to the right brush disc towards the surface to be cleaned 700, and the scrubber can turn right. Referring to FIG. 16, more pressure is applied to the left brush disc towards the surface to be cleaned 700, and the scrubber can turn left.

[0077] On the other hand, the brush disc on one side can be made horizontal to the surface to be cleaned 700, and the brush disc on the other side can be kept inclined to realize the turning. Referring to FIG. 15, for example, the right brush disc is made horizontal, and the left brush disc is kept inclined, so that the linear propulsion force is still generated forward, and the scrubber turns right. Similarly, referring to FIG. 16, the right brush disc can be made horizontal, and the left brush disc can be kept inclined, so that the scrubber turns left.

[0078] Therefore, the inclination of the brush discs in the present application can make the two brush discs generate linear propulsion force respectively, and the linear propulsion force of the two brush discs can be adjusted by adjusting the pressure of the brush disc on the ground or the inclination of the brush disc, so that the turning of the scrubber is realized. The rotation connection between the base where the brush discs are located and the operating rod held by the operator can improve the flexibility and cleaning efficiency, especially in a narrow working environment.

[0079] In an embodiment of the present application, the first brush disc assembly 200 can be fixedly arranged on the base 100, and the inclination angle between the first brush disc assembly 200 and the base 100 is fixed. The connection position of the operating rod 500 and the base 100 can be located between the first brush disc assembly 200 and the second brush disc assembly 300, so that the torque for overturning the base 100 can be applied by applying force to the operating rod 500, for example, to increase the pressure between the first brush disc assembly 200, the first brush disc 220 and the surface to be cleaned 700, so that the linear propulsion force generated by the first brush disc 220 and the second brush disc 310 is different, and the turning of the scrubber is realized.

[0080] In one embodiment of the present application, referring to Fig. 6, when the scrubber is in a straight-line advancing state, the second end 232 of the first brush assembly 200 is higher than the first end 231, and accordingly the brush disc has a pattern of being higher at the outer side and lower at the inner side. That is, by pressing the outer side of the brush disc, a force can be applied to the brush disc towards the surface 700 to be cleaned, and / or the brush disc is adjusted from the inclined state to the horizontal state, so that the linear advancing force generated by the first brush disc 220 and the second brush disc 310 is different, and the scrubbing is turned.

[0081] The hinged position of the operating rod 500 to the base 100 can be between the first brush assembly 200 and the second brush assembly 300. When the scrubber is in a straight-line advancing state, in the orthographic projection of the surface 700 to be cleaned, the angle between the rotating axis of the operating rod 500 relative to the rotating support 620 (to be described later) and the line connecting the first brush assembly 200 and the second brush assembly 300 is not more than 10°. For example, the angle can be equal to 0°, so that the rotating axis of the operating rod 500 relative to the rotating support 620 is parallel to the line connecting the two brush assemblies.

[0082] This embodiment makes it possible to apply a torque to a certain brush assembly through the operating rod 500.

[0083] In one embodiment of the present application, referring to Fig. 18, the scrubber comprises a fixed support 610 fixedly connected to the base 100, and the operating rod 500 is hinged to the fixed support 610. A torque can be directly applied to a certain brush assembly through the operating rod 500.

[0084] Referring to Fig. 19, for example, two handles 530 can be provided on the operating rod 500 and extend radially outward from the operating rod 500, so as to be convenient for the user to hold. In addition, the user can press a certain handle 530 downward to apply a torque to the brush assembly on that side through the operating rod 500, so as to turn the scrubber. Of course, the handle 530 does not have to strictly extend radially from the operating rod 500, for example, the axis of the handle 530 can be inclined to the radial direction of the operating rod 500.

[0085] In one embodiment of the present application, referring to Fig. 6, a second elastic member 140 is provided between the second end 232 of the first brush assembly 200 and the base 100, so that the brush assembly has an attitude inclined to the surface 700 to be cleaned, and the aforementioned state that the second end 232 is higher than the first end 231 when the scrubber is in a straight-line advancing state can be achieved. The second elastic member 120 can be a metal spring, a pneumatic spring, etc.

[0086] Referring to FIG. 6, the scrubber can include a pressing bracket 150 hinged to the base 100, the pressing bracket 150 including a pressing bracket abutting portion 151 abutting against the second end 232. By the pressing bracket 150 acting on the pressing bracket abutting portion 151, not only is it convenient for the operating rod 500 to apply force to a certain brush disc to increase the pressure between the brush disc and the surface to be cleaned 700, but it is also convenient to adjust the degree of inclination of the brush disc by pressing, for example, to make the brush disc on that side parallel to the surface to be cleaned 700. Therefore, this embodiment can promote the steering of the scrubber from two aspects.

[0087] Referring to FIGS. 6, 7 and 17, the scrubber can include a fixed bracket 610 including a concave round structure 611, the base 100 including a convex round structure 170, the concave round structure 611 of the fixed bracket 610 being arranged on the convex round structure 170 of the base 100 to form a hinge. When the part outside the concave round structure 611 of the fixed bracket 610 is parallel to the part outside the convex round structure 170 of the base 100, there is a gap C between the fixed bracket 610 and the base 100, so that the fixed bracket 610 and the base 100 can form a hinged relationship.

[0088] The pressing bracket 150 can be fixed to the fixed bracket 610. So that the pressing bracket 150 and the base 100 form a hinged relationship. Of course, the pressing bracket 150 and the fixed bracket 610 can also be the same structure formed integrally. The formation of the hinge by the concave round and convex round is only an example, and the specific hinge way of the pressing bracket 150 is not limited in the application.

[0089] In an embodiment of the application, referring to FIGS. 6 and 25, the first brush disc assembly 200 is hinged to the base 100, and the scrubber includes a telescopic rod 930 hinged to one end of the first brush disc assembly 200 or one end of the first brush disc 220, and the degree of inclination of the first brush disc 220 can be adjusted by the telescopic movement of the telescopic rod 930. The telescopic rod 930 can be driven by a device such as a hydraulic cylinder.

[0090] It should be understood that the scrubber as a whole is relatively heavy, and it is relatively laborious to steer purely by manual operation. The embodiment of the application for steering by changing the linear propulsion force of the two brush discs makes the steering process relatively easy and has strong operability.

[0091] In an embodiment of the application, referring to FIG. 4, the first brush disc assembly 200 can include a first brush disc motor 210 and a first brush disc 220. A first connecting rod 420 is connected to the first brush disc motor 210, the first brush disc motor 210 is connected to the first brush disc 220, and the first brush disc 220 can be perpendicular to the axis of the first brush disc assembly 200. The first brush disc 220 can include bristles that can rub against the surface to be cleaned 700 after rotating to achieve a cleaning function.

[0092] The application adjusts the inclination of the brush disc by adjusting the inclination of the brush disc motor, instead of directly applying force to the brush disc of the soft material to adjust the pressure between the brush disc and the ground when the brush disc motor is fixed. The connection between the brush disc and the brush disc motor is more stable in this adjustment mode, which is beneficial to increase the service life of the scrubber.

[0093] Referring to FIG. 4, the first brush disc assembly 200 can further include a motor bracket 240 and a motor bracket cover 250, and the first brush disc motor 210 can be hinged to the base 100 through the motor bracket 240 and the motor bracket cover 250. For example, referring to FIGS. 4 and 5, the motor bracket 240 can include two cylindrical hinge posts 241 arranged in the front-rear direction (direction A shown in FIG. 4) of the scrubber, and the base 100 can be provided with corresponding semi-cylindrical recesses 160, and the motor bracket cover 250 can rotatably limit the cylindrical hinge posts 241 in the semi-cylindrical recesses 160. When the end of the first brush disc motor 210 is lifted by the first connecting rod 420, for example, the first brush disc motor 210 can rotate about the hinge posts 241 as fulcrums, so that the inclination of the first brush disc assembly 200 can be adjusted.

[0094] Of course, referring to FIG. 24, the annular connecting portion 421 of the first connecting rod 420 can be formed as a bracket for hinging to the base 100, so that the first brush disc assembly 200 is hinged to the base 100 through the annular connecting portion 421. The annular connecting portion 421 can also include two cylindrical hinge posts arranged in the front-rear direction (direction A shown in FIG. 4) of the scrubber, which correspondingly arranged in the semi-cylindrical recesses of the base 100.

[0095] Referring to FIG. 4, the motor bracket 240 can further include a motor bracket connecting end 242 arranged on the inner side of the motor bracket 240 in the direction of the first brush disc assembly 200, the second brush disc assembly 300 (or the left-right direction of the scrubber, direction B shown in FIG. 4) and a motor bracket pressing end 243 arranged on the outer side of the motor bracket 240. The first connecting rod 420 can be connected to the motor bracket connecting end 242, and the motor bracket pressing end 243 can be used to press against the second elastic member 140 (as shown in FIG. 6).

[0096] Referring to FIG. 4, the first brush disc assembly 200 can further include a brush disc connector 260, and the output shaft of the first brush disc motor 210 can be connected to the brush disc connector 260, and the brush disc connector 260 is connected to the first brush disc 220.

[0097] In one embodiment of the present application, referring to FIGS. 19, 26, 27 and 28, the scrubber can comprise a rotating bracket 620. The rotating bracket 620 is pivotally connected to the fixed bracket 610. The scrubber can comprise the fixed bracket 610 connected to the base 100, the fixed bracket 610 comprising a cylindrical fixed bracket first sleeve 613 and a semi-cylindrical fixed bracket second sleeve 614 located radially outward of the fixed bracket first sleeve 613. The rotating bracket 620 comprises a cylindrical rotating bracket first sleeve 622 and a cylindrical rotating bracket second sleeve 623 located radially outward of the rotating bracket first sleeve 622. The rotating bracket first sleeve 622 is pivotally arranged in the fixed bracket first sleeve 613, and the rotating bracket second sleeve 623 is arranged in the fixed bracket second sleeve 614 and located radially outward of the fixed bracket first sleeve 613.

[0098] In one embodiment of the present application, referring to FIGS. 19, 20, 26, 27 and 28, the scrubber comprises a reset spring 630 contacting the rotating bracket 620 and the base 100. After the base 100 is pivoted relative to the rotating bracket 620, the reset spring 630 drives the base 100 to reset relative to the rotating bracket 620 by elastic force.

[0099] Specifically, in one embodiment of the present application, referring to FIGS. 26, 27 and 28, after the base 100 is pivoted relative to the rotating bracket 620, the reset spring 630 drives the base 100 to reset relative to the rotating bracket 620 by elastic force. For example, the scrubber comprises the reset spring 630, which is a torsion spring. The torsion spring can comprise a first elastic arm 631 and a second elastic arm 632 extending radially outward along the rotation axis of the rotating bracket 620. The torsion spring is arranged between the fixed bracket first sleeve 613 and the rotating bracket second sleeve 623. The rotating bracket second sleeve 623 is provided with a first extension opening 6231 and a second extension opening 6232 on the peripheral surface thereof, the first elastic arm 631 extending out of the rotating bracket 620 from the first extension opening 6231, and the second elastic arm 632 extending out of the rotating bracket 620 from the second extension opening 6232.

[0100] In the initial state where the rotating bracket 620 and the fixed bracket 610 are not relatively rotated, the first elastic arm 631 and the second elastic arm 632 abut against the fixed bracket second sleeve 614. In the pivoted state where the rotating bracket 620 and the fixed bracket 610 are relatively rotated, one of the first elastic arm 631 and the second elastic arm 632 abuts against the rotating bracket 620 without abutting against the fixed bracket second sleeve 614, and the other one always abuts against the fixed bracket second sleeve 614. In this way, the reset after rotation can be achieved.

[0101] In another embodiment of the present application, referring to FIG. 20, the rotating bracket 620 can include a rotating bracket abutting portion 621, and the fixed bracket 610 can include a fixed bracket abutting portion 612, the rotating bracket abutting portion 621 being located radially inward of the fixed bracket abutting portion 612.

[0102] In the initial state where the rotating bracket 620 and the fixed bracket 610 are not relatively rotated, both the first elastic arm 631 and the second elastic arm 632 abut against the fixed bracket abutting portion 612, and in the rotated state where the rotating bracket 620 and the fixed bracket 610 are relatively rotated, one of the first elastic arm 631 and the second elastic arm 632 abuts against the rotating bracket abutting portion 621 but not the fixed bracket abutting portion 612.

[0103] The cross sections of the rotating bracket abutting portion 621 and the fixed bracket abutting portion 612 can both be semicircular rings. After the base of the scrubber is turned, the fixed bracket 610 is rotated to drive, for example, the first elastic arm 631 to rotate. The second elastic arm 632 is changed from abutting against both the rotating bracket abutting portion 621 and the fixed bracket abutting portion 612 to abutting against only the rotating bracket abutting portion 621. When the external force applied to the scrubber is removed, the two elastic arms of the torsion spring drive the rotating bracket 620 and the fixed bracket 610 to reset, so as to realize the automatic reset function after rotation. On the rotation axis of the rotating bracket 620, the torsion spring can be located between the rotating bracket and the fixed bracket 610, facilitating the installation and positioning of the torsion spring.

[0104] Of course, the reset elastic member 630 can also be in other forms. In an embodiment of the present application, the reset elastic member 630 is a cylindrical spring (not shown in the figure). In the tangential direction of the fixed bracket 610, the two ends of the spring are connected to the fixed bracket 610 and the rotating bracket 620 respectively, so that the reset can be realized by the spring after relative rotation. The present application does not limit the setting form of the reset elastic member 630. The reset elastic member 630 is not limited to a torsion spring.

[0105] Referring to FIGS. 22 and 23, after the chassis is turned left or right, the cleaning head 800 and the operating rod 500 can be reset automatically. Of course, the operator and the operating rod 500 can be stationary, and the cleaning head 800 can be returned to the normal position. Alternatively, the cleaning head 800 can provide a trend for the operating rod 500 and the operator to change the position, and the operator can adjust the position under the guidance of the elastic force, so that the cleaning head 800 and the operating rod 500 are reset. Compared with the connection mode between the operating rod 500 and the cleaning head 800 through a universal joint, the scrubber provided by the present application is convenient to turn, and the cleaning head 800 is not easily deviated, so that the advancing direction is easier to control.

[0106] In one embodiment of the present application, referring to FIGS. 26, 27 and 28, the rotating holder 620 comprises a receiving portion 624 at the top of the rotating holder first sleeve 622, and the cam 510 is rotatably arranged in the receiving portion 624. The receiving portion 624 is provided with a receiving portion communication opening 6241 which communicates with the rotating holder first sleeve 622, the driving member 410 is arranged in the fixed holder first sleeve 613, and one end of the driving member 410 abuts against the cam 510 through the receiving portion communication opening 6241, in combination with the structure of the cam 510 described above, so as to be capable of adjusting the position of the driving member 410 and adjusting the inclination degree of the brush disc.

[0107] In one embodiment of the present application, referring to FIGS. 26 and 28, the fixed holder 610 comprises an axial positioning plate 615, and in the height direction, the rotating holder 620 abuts against the top of the axial positioning plate 615. The other end of the rotating holder first sleeve 622 away from the operating rod 500 is provided with an external thread, the scrubber comprises an axial positioning member 640 which is provided with an internal thread, the axial positioning member 640 is threadedly connected to the other end of the rotating holder first sleeve 622, and the axial positioning member 640 abuts against the bottom of the axial positioning plate 615. Through this embodiment, the axial positioning between the fixed holder 610 and the rotating holder 620 can be realized.

[0108] In one embodiment of the present application, referring to FIG. 21, the scrubber can further comprise a first water tank 910 arranged on the operating rod 500 and a second water tank 920 arranged on the cleaning head 800. Exemplarily, the first water tank 910 can be a relatively light fresh water tank, and the second water tank 920 can be a relatively heavy dirty water tank. The weight distribution of this water tank arrangement is reasonable, and it is convenient to operate the scrubber.

[0109] The above describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

[0110] List of reference numerals 100 base 110 connecting rod support 120 first elastic member 130 limiting block 140 second elastic member 150 pressing bracket 151 pressing bracket pressing portion 160 semicircular cylindrical recess 170 convex circular structure 200 first brush disc assembly 210 first brush disc motor 220 first brush disc 2201 left side portion 2202 right side portion 231 first end 232 second end 240 motor support 241 hinged column 242 motor support connecting end 243 motor support pressing end 250 motor support cover 260 brush disc connector 300 second brush disc assembly 310 second brush disc 410 driving member 420 first connecting rod 421 annular connecting portion 430 second connecting rod 440 third elastic member 450 hinged end 500 operating rod 510 cam 520 operating rod mounting sleeve 521 mounting sleeve pressing portion 530 handle 610 fixed support 611 concave circular structure 612 fixed support abutting portion 613 fixed support first sleeve 614 fixed support second sleeve 615 axial positioning plate 620 rotating support 621 rotating support abutting portion 622 rotating support first sleeve 623 rotating support second sleeve 6231 first extension outlet 6232 second extension outlet 624 accommodating portion 6241 accommodating portion communication port 630 reset elastic member 631 first elastic arm 632 second elastic arm 640 axial positioning member 700 surface to be cleaned 800 cleaning head 910 first water tank 920 second water tank 930 telescopic rod

Claims

1. A floor scrubbing machine, characterized in that, include: Base (100); A first brush plate assembly (200) and a second brush plate assembly (300) are both hinged to the base (100). The drive unit (410), the first brush assembly (200) and the second brush assembly (300) each include a brush, the two brush assemblies are configured to be symmetrical with respect to a vertical plane passing through the drive unit (410) and the two brushes rotate in opposite directions; A first connecting rod (420) and a second connecting rod (430) are connected, the first connecting rod (420) being connected to the first brush assembly (200) and the second connecting rod (430) being connected to the second brush assembly (300). The driving member (410) can synchronously drive the first connecting rod (420) and the second connecting rod (430), thereby enabling the brushes of the first brush assembly (200) and the second brush assembly (300) to be configured to be adjustable between being symmetrically tilted relative to the surface to be cleaned (700) or parallel to the surface to be cleaned (700).

2. The floor scrubber according to claim 1, characterized in that, The floor scrubber includes an operating lever (500) which is hinged to the base (100). When the operating lever (500) is rotated, it can press down the drive member (410).

3. The floor scrubbing machine according to claim 2, characterized in that, The end of the operating lever (500) is provided with a cam (510), which presses against the driving member (410). By rotating the operating lever (500), the distance between the center of the driving member (410) and the center of the cam (510) can be changed.

4. The floor scrubbing machine according to claim 2, characterized in that, The end of the operating lever (500) is provided with a mounting sleeve pressing part (521). By rotating the operating lever (500), the distance between the mounting sleeve pressing part (521) and the driving member (410) can be reduced, and the mounting sleeve pressing part (521) can contact and press down the driving member (410).

5. The floor scrubbing machine according to claim 4, characterized in that, A first elastic element (120) is provided between the driving member (410) and the base (100), so that after the operating lever (500) is rotated and reset, the driving member (410) can be reset and raised under the elastic action of the first elastic element (120).

6. The floor scrubbing machine according to claim 1, characterized in that, The first brush assembly (200) includes a first end (231) near the second brush assembly (300) and a second end (232) away from the second brush assembly (300), and the first connecting rod (420) is connected to the first end (231).

7. The floor scrubbing machine according to claim 6, characterized in that, One end of the first connecting rod (420) is hinged to one end of the second connecting rod (430) as a hinge end (450). A limit block (130) is provided at the top of the hinge end (450). The driving member (410) passes through the limit block (130) and presses against the top of one end of the first connecting rod (420) or the top of one end of the second connecting rod (430). The other end of the first connecting rod (420) is fixedly connected to the first brush assembly (200).

8. The floor scrubber according to claim 6, characterized in that, One end of the first connecting rod (420) is hinged to the driving member (410), and the other end of the first connecting rod (420) is hinged to the first end (231). A connecting rod support (110) is provided on the base (100), and the middle part of the first connecting rod (420) is hinged to the base (100) through the connecting rod support (110).

9. The floor scrubbing machine according to claim 6, characterized in that, When the floor scrubber is in a straight-line travel state, the second end (232) is higher than the first end (231). The floor scrubber also includes an operating rod (500) hinged to the base (100). The hinge position is located between the first brush assembly (200) and the second brush assembly (300). In the orthographic projection of the surface to be cleaned (700), the angle between the rotation axis of the operating rod (500) and the line connecting the first brush assembly (200) and the second brush assembly (300) does not exceed 10°.

10. The floor scrubbing machine according to claim 9, characterized in that, A second elastic element (140) is provided between the second end (232) and the base (100). The floor scrubber includes a pressing bracket (150) hinged to the base (100). The pressing bracket (150) includes a pressing bracket pressing part (151) pressing against the second end (232).

11. The floor scrubber according to claim 10, characterized in that, The floor scrubber includes a fixed bracket (610), the fixed bracket (610) includes a concave circular structure (611), the base (100) includes a convex circular structure (170), the concave circular structure (611) of the fixed bracket (610) is disposed on the convex circular structure (170) of the base (100) to form a hinge, and the pressing bracket (150) is fixed to the fixed bracket (610).

12. The floor scrubber according to claim 1, characterized in that, The first disk flushing component (200) includes: The first brush motor (210) is connected to the first brush motor (210); The first brush disk (220) is connected to the first brush disk motor (210).

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