Floor cleaning machine

Abstract

The present application provides a floor cleaning machine. The floor cleaning machine comprises a base, a first brush disk assembly, a second brush disk assembly, a rotating support, and an operating lever. The first brush disk assembly is arranged on the base, and the first brush disk assembly comprises a first brush disk. The second brush disk assembly is arranged on the base, and the second brush disk assembly comprises a second brush disk. The rotation directions of the first brush disk and the second brush disk are opposite, and when the floor cleaning machine is traveling in a straight line, the first brush disk and the second brush disk are configured to be inclined relative to a surface to be cleaned. The rotating support is rotatably connected to the base, and the rotation axis of the rotating support is perpendicular to the base. The operating lever is connected to the rotating support so as to be rotatably connected to the base.

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 large and not light enough, and it is inconvenient to clean corners. The flexibility and cleaning efficiency in cleaning narrow spaces need to be improved.

[0003] The inventor understands that a floor cleaning machine includes two levels of joints. The operating rod of the floor cleaning machine is connected to a first connecting structure (first joint), the first connecting structure is hinged to a second connecting structure (second joint), and the first connecting structure can swing forward and backward (forward and backward in the direction of travel of the floor cleaning machine) relative to the second connecting structure. The second connecting structure is hinged to the cleaning base of the floor cleaning machine, and the second connecting structure can swing left and right (left and right in the direction of travel of the floor cleaning machine) relative to the cleaning base. The operating rod can be pushed and pulled (swung forward and backward) by means of the first connecting structure, and swung left and right by means of the second connecting structure.

[0004] However, when the entire floor cleaning machine needs to be turned, for example, the operator needs to coordinate the swinging of the first connecting structure and the second connecting structure, and the operator needs to actively go to the corresponding position to realize the turning of the entire floor cleaning machine, which is more difficult to achieve in a narrow space, for example. SUMMARY

[0005] In order to improve or solve at least one technical problem mentioned in the background, the present application provides a floor cleaning machine.

[0006] The floor cleaning machine provided by the embodiments of the present application comprises:

[0007] a base;

[0008] a first brush disc assembly, the first brush disc assembly being arranged on the base, the first brush disc assembly comprising a first brush disc;

[0009] a second brush disc assembly, the second brush disc assembly being arranged on the base, the second brush disc assembly comprising a second brush disc, the rotation directions of the first brush disc and the second brush disc being opposite, and the first brush disc and the second brush disc being configured to be inclined to a surface to be cleaned when the floor cleaning machine is in a straight-line travel state;

[0010] a rotating bracket, the rotating bracket being rotationally connected to the base, and the rotation axis of the rotating bracket being perpendicular to the base;

[0011] an operating rod, the operating rod being connected to the rotating bracket to be rotationally connected to the base.

[0012] In one embodiment of the present application, the first brush disc assembly is arranged on the base, and the angle of inclination between the first brush disc assembly and the base is fixed.

[0013] In one embodiment of the present application, the first brush disc assembly is hinged to the base, and the height of the inner side of the first brush disc is lower than the height of the outer side when the scrubber is in a straight running state.

[0014] In one embodiment of the present application, the operating rod is hinged to the rotating bracket, and the angle between the operating rod and the line connecting the first brush disc assembly and the second brush disc assembly relative to the rotating axis of the rotating bracket is no more than 10° in the orthographic projection of the surface to be cleaned when the scrubber is in a straight running state.

[0015] In one embodiment of the present application, a second elastic member is arranged between the end of the first brush disc assembly away from the second brush disc assembly and the base, the scrubber comprises a pressing bracket hinged to the base, the pressing bracket comprises a pressing bracket pressing portion, the pressing bracket pressing portion presses against the end of the first brush disc assembly away from the second brush disc assembly, the scrubber comprises a fixing bracket, the fixing bracket comprises a concave round structure, the base comprises a convex round structure, the concave round structure is arranged on the convex round structure to form a hinge, and the pressing bracket is fixed to the fixing bracket.

[0016] In one embodiment of the present application, the first brush disc assembly is hinged to the base, the scrubber comprises a telescopic rod hinged to one end of the first brush disc assembly or one end of the first brush disc, and the inclination of the first brush disc can be adjusted through the telescopic movement of the telescopic rod.

[0017] In one embodiment of the present application, the scrubber comprises a fixing bracket connected to the base, the fixing bracket comprises a cylindrical fixing bracket first sleeve and a semi-cylindrical fixing bracket second sleeve, the fixing bracket second sleeve is located radially outward of the fixing bracket first sleeve,

[0018] the rotating bracket comprises a cylindrical rotating bracket first sleeve and a cylindrical rotating bracket second sleeve, the rotating bracket second sleeve is located radially outward of the rotating bracket first sleeve,

[0019] the rotating bracket first sleeve is rotationally arranged in the fixing bracket first sleeve, the rotating bracket second sleeve is arranged in the fixing bracket second sleeve, and the rotating bracket second sleeve is located radially outward of the fixing bracket first sleeve.

[0020] In an embodiment of the present application, the scrubber comprises a reset elastic member, which is a torsion spring, the torsion spring comprises a first elastic arm and a second elastic arm extending radially outward along the rotation axis of the rotating support,

[0021] The torsion spring is arranged between the first sleeve of the fixed support and the second sleeve of the rotating support, the second sleeve of the rotating support is provided with a first extension opening and a second extension opening on the peripheral surface, the first elastic arm extends out of the rotating support from the first extension opening, and the second elastic arm extends out of the rotating support from the second extension opening,

[0022] In the initial state where the rotating support and the fixed support are not relatively rotated, the first elastic arm and the second elastic arm abut against the second sleeve of the fixed support,

[0023] In the rotated state where the rotating support and the fixed support are relatively rotated, one of the first elastic arm and the second elastic arm abuts against the rotating support without abutting against the second sleeve of the fixed support, and the other always abuts against the second sleeve of the fixed support.

[0024] In an embodiment of the present application, the rotating support comprises a receiving portion at the top of the first sleeve of the rotating support, the scrubber comprises a cam connected to the operating rod, and the cam is arranged in rotation in the receiving portion,

[0025] The receiving portion is provided with a receiving portion communication opening communicating with the first sleeve of the rotating support, the scrubber comprises a driving member arranged in the first sleeve of the fixed support, and one end of the driving member abuts against the cam through the receiving portion communication opening.

[0026] In an embodiment of the present application, the fixed support comprises an axial positioning plate, in the height direction, the rotating support abuts against the top of the axial positioning plate,

[0027] The other end of the first sleeve of the rotating support away from the operating rod is provided with an external thread, the scrubber comprises an axial positioning member provided with an internal thread, the axial positioning member is threadedly connected to the other end of the first sleeve of the rotating support, and the axial positioning member abuts against the bottom of the axial positioning plate.

[0028] The present application can make the two brush discs generate linear propulsion forces respectively by tilting the brush discs, the linear propulsion forces of the two brush discs can be adjusted by adjusting the pressure of the brush disc on the ground or the tilting degree of the brush disc, thereby realizing the steering function of the scrubber, and the rotating support is arranged between the base where the brush disc is arranged and the operating rod held by the operator, so as to realize the rotating connection, thereby facilitating the flexibility and cleaning efficiency in a narrow working environment. Attached Figure Description

[0029] Figure 1 shows a schematic diagram of the tilted brush disk.

[0030] Figure 2 shows a schematic diagram of a horizontal brush disk.

[0031] Figure 3 shows a schematic diagram of the cleaning head of a floor scrubber according to an embodiment of this application.

[0032] Figure 4 shows a disassembled diagram of the cleaning head of a floor scrubber according to an embodiment of this application.

[0033] Figure 5 shows a schematic diagram of the hinge connection between the motor support and the base of the floor scrubber according to an embodiment of this application.

[0034] Figure 6 shows a cross-sectional view of a floor scrubber according to an embodiment of this application, demonstrating the drive unit and connecting rod.

[0035] Figure 7 shows a side view of a floor scrubber according to an embodiment of the present application, illustrating the hinged relationship between the fixed bracket and the base.

[0036] Figure 8 shows a disassembled diagram of the floor scrubber according to an embodiment of this application.

[0037] Figure 9 shows a side view of the floor scrubber in motion and a front view of the corresponding brush plate according to an embodiment of this application.

[0038] Figure 10 shows a side view of the floor scrubber in stationary operation according to an embodiment of the present application and a front view of the corresponding brush.

[0039] Figure 11 shows a cross-sectional view of a floor scrubber according to an embodiment of this application, demonstrating the drive unit and connecting rod.

[0040] Figure 12 shows a partial enlarged view of the limiting block of the floor scrubber in Figure 11.

[0041] Figure 13 shows a cross-sectional view from a side view of a floor scrubber according to an embodiment of the present application.

[0042] Figure 14 shows a partial enlarged view of the cam of the floor scrubber in Figure 13.

[0043] Figure 15 shows a schematic diagram of a floor scrubber turning right according to an embodiment of this application.

[0044] Figure 16 shows a schematic diagram of a floor scrubber turning left according to an embodiment of this application.

[0045] Figure 17 shows a schematic diagram of the structure of a floor scrubber with its fixed bracket and base in a hinged relationship according to an embodiment of the present application.

[0046] Figure 18 shows a structure diagram of a fixed support of a scrubber in a fixed relationship with a base according to an embodiment of the present application.

[0047] Figure 19 shows a parts exploded view of an operating lever of a scrubber according to an embodiment of the present application.

[0048] Figure 20 shows a structure enlarged view of a reset elastic member 630 of a scrubber according to an embodiment of the present application.

[0049] Figure 21 shows a front view of a scrubber according to an embodiment of the present application.

[0050] Figure 22 shows a diagram of a scrubber automatically returning to normal after right turning according to an embodiment of the present application.

[0051] Figure 23 shows a diagram of a scrubber automatically returning to normal after left turning according to an embodiment of the present application.

[0052] Figure 24 shows a structure diagram of a first connecting rod of the scrubber in Figure 11.

[0053] Figure 25 shows a structure diagram of a telescopic rod of a scrubber according to an embodiment of the present application.

[0054] Figure 26 shows a local enlarged view at a rotating support of the scrubber in Figure 13.

[0055] Figure 27 shows a structure diagram of a fixed support and a rotating support of a scrubber according to an embodiment of the present application.

[0056] Figure 28 shows a sectional view diagram of a fixed support and a rotating support of a scrubber according to an embodiment of the present application. DETAILED DESCRIPTION

[0057] The exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. It is to be understood that the specific description is only for the purpose of teaching one skilled in the art how to implement the present application, and is not intended to limit the scope of the present application.

[0058] Referring to Figure 21, the present application provides a scrubber, which can be a hand-push scrubber. Of course, the present application does not limit the specific form of the scrubber.

[0059] In an embodiment of the present application, referring to Figures 3 and 8, the scrubber can include a base 100, a first brush disc assembly 200, a second brush disc assembly 300, a rotating support 620 and an operating lever 500.

[0060] The first brush disc assembly 200 is arranged on the base 100, and the first brush disc assembly 200 comprises a first brush disc 220. The second brush disc assembly 300 is arranged on the base 100, and the second brush disc assembly 300 comprises a second brush disc 310. The rotation directions of the first brush disc 220 and the second brush disc 310 are opposite, and the first brush disc 220 and the second brush disc 310 are configured to be inclined to the surface 700 to be cleaned when the scrubber is in a straight-line advancing state.

[0061] The rotating bracket 620 is rotatably connected to the base 100, and the rotation axis of the rotating bracket 620 is perpendicular to the base 100. The operating rod 500 is connected to the rotating bracket 620 to be rotatably connected to the base 100.

[0062] As shown in FIG. 1, taking the first brush disc 220 on the right side as an example, the pressure between the left side 2201 of the first brush disc 220 and the surface 700 to be cleaned is large, and the pressure between the right side 2202 of the first brush disc 220 and the surface 700 to be cleaned is small. In combination with the second brush disc 310 on the left side which has the opposite rotation direction, linear forward or backward propulsion force can be generated by the brush discs to realize straight-line advancing or retreating.

[0063] As shown in FIG. 2, when the brush discs are parallel to the surface 700 to be cleaned, the pressure between the left side 2201 of the first brush disc 220 and the surface 700 to be cleaned is the same as the pressure between the right side 2202 of the first brush disc 220 and the surface 700 to be cleaned. The second brush disc 310 has the same effect, so that the linear propulsion forces in the advancing direction and the retreating direction are offset, and the scrubber is facilitated to keep running in place.

[0064] When steering is desired, on the one hand, the pressure of the brush disc on one side on the ground can be increased, so that the frictional forces between the two brush discs and the ground are different, the linear propulsion forces generated are different, and steering is realized. Referring to FIG. 15, for example, more pressure of the brush disc on the right side towards the surface 700 to be cleaned is applied, and the scrubber can turn right. Referring to FIG. 16, more pressure of the brush disc on the left side towards the surface 700 to be cleaned is applied, and the scrubber can turn left.

[0065] On the other hand, the brush disc on one side can also be made horizontal to the surface 700 to be cleaned, and the brush disc on the other side is kept inclined to realize steering. Referring to FIG. 15, for example, the brush disc on the right side is made horizontal, and the brush disc on the left side is kept inclined, and the linear propulsion force in the forward direction is still generated, so that the scrubber turns right. Similarly, referring to FIG. 16, the brush disc on the right side can be made horizontal, and the brush disc on the left side is kept inclined, so that the scrubber turns left.

[0066] Therefore, the application can make the two brush discs generate linear propulsion forces respectively by tilting the brush discs, and the linear propulsion forces of the two brush discs can be adjusted by adjusting the pressure of the single brush disc on the ground or the tilting degree, so as to realize the steering of the scrubber. In addition, the rotation connection between the base where the brush disc is located and the operating rod held by the operator can facilitate the flexibility and cleaning efficiency, especially in a narrow working environment. The second brush disc assembly 300 can be the same as the first brush disc assembly 200, and the first brush disc assembly 200 will be taken as an example for description hereinafter.

[0067] In an embodiment of the application, the first brush disc assembly 200 can be arranged on the base 100, and the tilting angle between the first brush disc assembly 200 and the base 100 is fixed. The connection position of the operating rod 500 and the rotating bracket 620 can be located between the first brush disc assembly 200 and the second brush disc assembly 300, so that the force moment for tilting 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 forces generated by the first brush disc 220 and the second brush disc 310 are different, and the steering of the scrubbing is realized.

[0068] In an embodiment of the application, the first brush disc assembly 200 is hinged to the base 100, and the height of the inner side of the first brush disc 220 is lower than that of the outer side when the scrubber is in a straight line running state. That is, by pressing the outer side of the brush disc, a force towards the surface to be cleaned 700 can be applied to the brush disc, and / or the brush disc is adjusted from the tilting state to the horizontal state, so that the linear propulsion forces generated by the first brush disc 220 and the second brush disc 310 are different, and the steering of the scrubbing is realized.

[0069] In an embodiment of the application, referring to FIG. 6, the end (second end 232) of the first brush disc assembly 200 away from the second brush disc assembly 300 is provided with a second elastic member 140 between the base 100, and the scrubber comprises a pressing bracket 150 hinged to the base 100, and the pressing bracket 150 comprises a pressing bracket pressing portion 151 which presses against the end of the first brush disc assembly 200 away from the second brush disc assembly 300.

[0070] Referring to FIG. 6, FIG. 7 and FIG. 17, the scrubber comprises a fixed support 610 comprising a concave round structure 611, the base 100 comprises a convex round structure 170, the concave round structure 611 of the fixed support 610 is arranged on the convex round structure 170 of the base 100 to form a hinge. And when the part of the fixed support 610 other than the concave round structure 611 is parallel to the part of the base 100 other than the convex round structure 170, there is a gap C between the fixed support 610 and the base 100, so that the fixed support 610 and the base 100 can form a hinged relationship. Of course, the fixed support 610 can be rotated in the left-right direction (B direction shown in FIG. 4).

[0071] The pressing support 150 is fixed to the fixed support 610, so that the pressing support 150 and the base form a hinged relationship. Of course, the pressing support 150 and the fixed support 610 can also be formed as the same structure. The hinge formed by the concave round and the convex round is only an example, and the specific hinge mode of the pressing support 150 is not limited in the application.

[0072] In an embodiment of the application, referring to FIG. 6, the operating rod 500 is hinged to the rotating support 620, the rotating support 620 is connected to the fixed support 610, and in the orthographic projection of the surface to be cleaned 700 when the scrubber is in a straight-line advancing state, the angle between the rotating axis of the operating rod 500 relative to the rotating support 620 and the line connecting the first brush disc assembly 200 and the second brush disc 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 disc assemblies. Thus, the pressure towards the surface to be cleaned 700 can be applied to the first brush disc assembly 200 by the operating rod 500, the fixed support 610 and the pressing support 150. And / or, the first brush disc 220 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 steering of the scrubbing is realized.

[0073] In an embodiment of the application, referring to FIG. 6 and FIG. 25, the first brush disc assembly 200 is hinged to the base 100, and the scrubber comprises 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 inclination degree 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.

[0074] In an embodiment of the application, the operating rod 500 can also be fixedly connected to the rotating support 620. The fixed connection can facilitate the operating rod 500 to apply force to the brush disc assembly on one side to realize the leveling of the unilateral brush disc.

[0075] In one embodiment of the present application, referring to FIG. 19, the operating lever 500 can include two handles 530 extending radially outwardly along the operating lever 500. A user can press a certain handle 530 downwardly to apply a force to the pressing support 150 through the operating lever 500, thereby achieving steering of the scrubber, which is simple to operate and good in user experience. Of course, the handles 530 do not have to extend radially, but can be inclined to the radial direction. The handles 530 can also be formed in various forms such as grips at the tail end of the operating lever 500.

[0076] In one embodiment of the present application, referring to FIGS. 26, 27 and 28, the rotating support 620 can rotate relative to the fixed support 610. For example, the scrubber can include the fixed support 610 connected to the base 100, the fixed support 610 including a cylindrical fixed support first sleeve 613 and a semi-cylindrical fixed support second sleeve 614 located radially outwardly of the fixed support first sleeve 613. The rotating support 620 includes a cylindrical rotating support first sleeve 622 and a cylindrical rotating support second sleeve 623 located radially outwardly of the rotating support first sleeve 622. The rotating support first sleeve 622 is rotatably arranged in the fixed support first sleeve 613, and the rotating support second sleeve 623 is arranged in the fixed support second sleeve 614 and located radially outwardly of the fixed support first sleeve 613.

[0077] In one embodiment of the present application, referring to FIGS. 19, 20, 26, 27 and 28, the scrubber includes a reset elastic member 630 contacting the rotating support 620 and the base 100, which drives the base 100 to reset relative to the rotating support 620 by elastic force after the base 100 rotates relative to the rotating support 620.

[0078] Specifically, in one embodiment of the present application, referring to FIGS. 26, 27 and 28, the reset elastic member 630 drives the base 100 to reset relative to the rotating support 620 by elastic force after the base 100 rotates relative to the rotating support 620. For example, the scrubber includes the reset elastic member 630, which is a torsion spring. The torsion spring can include a first elastic arm 631 and a second elastic arm 632 extending radially outwardly along the rotation axis of the rotating support 620. The torsion spring is arranged between the fixed support first sleeve 613 and the rotating support second sleeve 623, and the rotating support second sleeve 623 is provided with a first extension opening 6231 and a second extension opening 6232, the first elastic arm 631 extending out of the rotating support 620 from the first extension opening 6231, and the second elastic arm 632 extending out of the rotating support 620 from the second extension opening 6232.

[0079] 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 are both abutted against the second sleeve 614 of the fixed bracket 610. 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 is abutted against the rotating bracket 620 and not abutted against the second sleeve 614 of the fixed bracket 610, and the other is always abutted against the second sleeve 614 of the fixed bracket 610. In this way, the reset after rotation can be realized.

[0080] In another embodiment of the present application, referring to FIG. 20, the rotating bracket 620 comprises a rotating bracket abutment 621, and the fixed bracket 610 comprises a fixed bracket abutment 612, and the rotating bracket abutment 621 is located radially inside the fixed bracket abutment 612.

[0081] 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 are both abutted against the fixed bracket abutment 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 is abutted against the rotating bracket abutment 621 and not abutted against the fixed bracket abutment 612. The other is always abutted against the fixed bracket abutment 612.

[0082] The cross sections of the rotating bracket abutment 621 and the fixed bracket abutment 612 can both be semicircular rings. The fixed bracket 610 drives, for example, the first elastic arm 631 to rotate after rotation. The second elastic arm 632 changes from being abutted against both the rotating bracket abutment 621 and the fixed bracket abutment 612 to being abutted against only the rotating bracket abutment 621. When the external force applied to the scrubber is removed, the two elastic arms of the torsional spring drive the rotating bracket 620 and the fixed bracket 610 to reset. In the rotation axis of the rotating bracket 620, the torsional spring can be located between the rotating bracket and the fixed bracket 610, facilitating the installation and positioning of the torsional spring.

[0083] 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 after relative rotation can be realized due to the spring. The present application does not limit the setting form of the reset elastic member 630. The reset elastic member 630 is not limited to be a torsional spring.

[0084] When the steering is finished and the user does not apply force to the operating lever 500, the operating lever 500 and the base 100 can be automatically reset through the reset elastic member 630. For example, referring to FIG. 22 and FIG. 23, after the left or right turning of the chassis, the cleaning head 800 where the base 100 is located and the operating lever 500 can be automatically reset.

[0085] Of course, the operator and the operating rod 500 can be stationary, and the cleaning head 800 can be returned to normal. Alternatively, the cleaning head can provide a tendency for the operator and the operating rod 500 to change position, and the operator can adjust the position under the guidance of the elastic force to reset the operating rod 500 and the cleaning head 800. Compared with the connection mode between the operating rod 500 and the cleaning head 800 through the universal joint, the scrubber provided by the application is convenient to turn, and the cleaning head 800 is not easily deviated, and the advancing direction is easier to control.

[0086] In an embodiment of the application, referring to FIGS. 26, 27 and 28, the rotating bracket 620 includes a receiving portion 624 at the top of the rotating bracket first sleeve 622, the scrubber includes a cam 510 connected to the operating rod 500, and the cam 510 is rotationally arranged in the receiving portion 624. The receiving portion 624 is provided with a receiving portion communication opening 6241 communicating with the rotating bracket first sleeve 622, the scrubber includes a driving member 410 arranged in the fixed bracket first sleeve 613, and one end of the driving member 410 abuts against the cam 510 through the receiving portion communication opening 6241. The functions of the driving member 410 and the cam 510 will be described later.

[0087] In an embodiment of the application, referring to FIGS. 26 and 28, the fixed bracket 610 includes an axial positioning plate 615, and in the height direction, the rotating bracket 620 abuts against the top of the axial positioning plate 615. The other end of the rotating bracket first sleeve 622 away from the operating rod 500 is provided with an external thread, the scrubber includes an axial positioning member 640 provided with an internal thread, the axial positioning member 640 is threadedly connected to the other end of the rotating bracket 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 bracket 610 and the rotating bracket 620 can be achieved.

[0088] Referring to FIGS. 4 and 5, the first brush disc assembly 200 can further include a first brush disc motor 210, a motor bracket 240 and a motor bracket cover 250, and the first brush disc motor 210 can be hingedly connected to the base 100 through the motor bracket 240 and the motor bracket cover 250. For example, the motor bracket 240 can include a cylindrical hinge column 241 arranged in the front-rear direction (A direction) of the scrubber, and a corresponding semicylindrical recess 160 can be arranged on the base 100, and the motor bracket cover 250 can rotationally limit the cylindrical hinge column 241 in the cylindrical recess. When the end of the first brush disc motor 210 is moved by the first connecting rod 420, for example, the first brush disc motor 210 can swing around the hinge column 241 as a fulcrum, so that the inclination of the first brush disc assembly 200 can be adjusted.

[0089] Referring to FIG. 4, the motor bracket 240 can further include a motor bracket connecting end 242 located inside the motor bracket 240 in the direction of the connection of the first brush disc assembly 200 and the second brush disc assembly 300 (or the left-right direction, B direction) and a motor bracket pressing end 243 located outside the motor bracket 240. The first connecting rod 420 (to be described later) 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.

[0090] 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.

[0091] The inclination of the first brush disc assembly 200 and the second brush disc assembly 300 can be adjusted at the same time, so that they are leveled at the same time, so that the scrubber can run in place.

[0092] In an embodiment of the present application, referring to FIG. 3, 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 assembly can rotate relative to the base 100.

[0093] 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., to be described later) to the first brush disc assembly 200, and the second connecting rod 430 can be connected (including hinged, fixedly connected, etc., to be described later) to the second brush disc assembly 300. The driving member 410 can synchronously rotate the first connecting rod 420 and the second connecting rod 430, and the brush disc of the first brush disc assembly 200 and the brush disc of the second brush disc assembly 300 can be symmetrically inclined to the surface to be cleaned 700 or parallel to the surface to be cleaned 700 with the driving member 410 as the axis of symmetry.

[0094] In an embodiment of the present application, referring to FIG. 4, the 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.

[0095] The present application adjusts the inclination of the brush disc by adjusting the inclination of the brush disc motor, rather than directly applying force to the soft material brush disc 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 in this adjustment method is more stable, which is beneficial to increase the service life of the scrubber.

[0096] In an 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, and the second end 232 can be higher than the first end 231 or flush with the first end 231.

[0097] For example, the second end 232 is higher than the first end 231 in the normal travel state of the scrubber. When it is required to run in place, the second end 232 is made flush with the first end 231 to achieve the effect that the first brush disc 220 is parallel to the surface to be cleaned 700.

[0098] In an embodiment of the present application, referring to FIG. 6, one end (left end) of the first connecting rod 420 is hinged to the driving member 410, and the other end (right end) of the first connecting rod 420 is hinged to the first end 231 of the first brush disc assembly 200. The base 100 is provided with a connecting rod support 110, and the middle part of the first connecting rod 420 is hinged to the base 100 through the connecting rod support 110. Referring to FIG. 7, a first elastic member 120 can be provided between the driving member 410 and the base 100 to facilitate the resetting of the driving member 410.

[0099] When the driving member 410 is pressed down, the first connecting rod 420 will take the connecting rod support 110 as a fulcrum, one end (left end) will fall down, and the other end (right end) will be raised, driving the first end 231 (left end) of the first brush disc assembly 200 to be raised. The inclination of the first brush disc assembly 200 is changed, for example, to achieve that the first brush disc 220 is parallel to the surface to be cleaned (the brush disc is parallel to the surface to be cleaned 700). After the external force that presses down the driving member 410 is removed, the first elastic member 120 will reset the driving member 410, so that the first brush disc assembly 200 remains in an inclined state. The first elastic member 120 can be a metal spring, a pneumatic spring, etc.

[0100] In an embodiment of the present application, referring to FIG. 6 and FIG. 7, the scrubber can include an operating rod mounting sleeve 520 hinged to the base 100, and the operating rod 500 is mounted in the operating rod mounting sleeve 520, so that the operating rod 500 is detachable for convenient maintenance. The operating rod mounting sleeve 520 can include a protruding mounting sleeve pressing part 521, and the operating rod mounting sleeve 520 can be arranged behind the driving member 410. When the operating rod mounting sleeve 520 is turned forward, the mounting sleeve pressing part 521 can press down the driving member 410. When the operating rod mounting sleeve 520 is turned backward, the mounting sleeve pressing part 521 releases the force that presses down the driving member 410.

[0101] Referring to FIG. 10, when the operating lever 500 is rotated to a vertical state, the driving member 410 can be pressed down, and the brush disc can be kept horizontal. Referring to FIG. 9, when the operating lever 500 is rotated back to the inclined state, the pressing force on the driving member 410 can be released, and the brush disc can return to the inclined state. Of course, two inclined states can be provided, and the first inclined state can correspond to the pressing of the driving member 410, and the second inclined state can correspond to the release of the pressing of the driving member 410.

[0102] Of course, the adjustment of the inclination of the first brush disc assembly 200 by the operating lever 500, the driving member 410, and the first connecting rod 420 can be in other forms. For example, in an embodiment of the present application, referring to FIGS. 11 and 12, one end of the first connecting rod 420 is hingedly connected to one end of the second connecting rod 430, and the hinged position is a 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.

[0103] 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 420 can include a ring-shaped connecting portion 421, and the first brush disc assembly 200 is fixedly connected to the ring-shaped connecting portion 421.

[0104] In contrast to the embodiment shown in FIG. 6, in the embodiments shown in FIGS. 11, 12, and 24, when the first connecting rod 420 is inclined, the first brush disc assembly 200 is inclined accordingly. When the first connecting rod 420 is horizontal, the first brush disc assembly 200 is horizontal accordingly. When the driving member 410 passes through the limiting block 130 and is pressed down, one end (the left end) of the first connecting rod 420 falls, and the other end (the right end) is raised, and the first brush disc assembly 200 is kept in the inclined state. 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 is kept horizontal, so that the first brush disc assembly 200 is kept in the horizontal state.

[0105] In one embodiment of the present application, referring to FIG. 13 and FIG. 14, the end of the operating rod 500 can be provided with a cam 510 as described above, which is pressed against the driving member 410. By rotating the operating rod 500, the distance between the driving member 410 and the center of the cam 510 can be changed, thereby adjusting the degree of depression of the driving member 410. For example, when the operating rod 500 is inclined to the surface 700 to be cleaned, the radius of the cam 510 is large, and the cam 510 causes the driving member 410 to be depressed. When the operating rod 500 is perpendicular to the surface 700 to be cleaned, the radius of the cam 510 is small, and the depression of the driving member 410 is released. This embodiment can further achieve that when the operating rod 500 is inclined to the surface 700 to be cleaned, the driving member 410 is depressed, and the brush disc is inclined to the surface 700 to be cleaned; and when the operating rod 500 is perpendicular to the surface 700 to be cleaned, the driving member 410 is lifted, and the brush disc is parallel to the surface 700 to be cleaned.

[0106] Referring to FIG. 12, a third elastic member 440 can be further provided between the driving member 410 and the axial direction of the limiting block 130. For example, one end of the third elastic member 440 is fixedly connected to the driving member 410, and the other end is abutted against the top surface of the limiting block 130. When the driving member 410 is depressed, 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 depression of the driving member 410 is released, the driving member 410 can be lifted in time due to the elastic force, and the tilting conversion process of the first connecting rod 420 and the second connecting rod 430 is not affected. The third elastic member 440 can be a spring.

[0107] In one embodiment of the present application, referring to FIG. 21, the scrubber can further include a first water tank 910 provided on the operating rod 500 and a second water tank 920 provided on the cleaning head 800. For example, 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 the scrubber is convenient to operate.

[0108] The above describes the preferred embodiments of the present application. 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.

[0109] 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 scrubber machine characterized in that, The utility model relates to a floor cleaning machine, including: a base (100); a first brush disc assembly (200) arranged on the base (100), the first brush disc assembly (200) comprising a first brush disc (220); a second brush disc assembly (300) arranged on the base (100), the second brush disc assembly (300) comprising a second brush disc (310), the rotation directions of the first brush disc (220) and the second brush disc (310) are opposite, in a straight-line travel state of the floor cleaning machine, the first brush disc (220) and the second brush disc (310) are configured to be inclined to a surface (700) to be cleaned; a rotating bracket (620) rotationally connected to the base (100), the rotating axis of the rotating bracket (620) is perpendicular to the base (100); an operating rod (500) connected to the rotating bracket (620) and rotationally connected to the base (100).

2. The walk-behind scrubber of claim 1, wherein, The first brush disc assembly (200) is arranged on the base (100), and the inclination angle between the first brush disc assembly (200) and the base (100) is fixed.

3. The walk-behind scrubber of claim 1, wherein, The first brush disc assembly (200) is hingedly connected to the base (100), in a straight-line travel state of the floor cleaning machine, the height of the inner side of the first brush disc (220) is lower than the height of the outer side.

4. The scrubber of claim 3, wherein, The operating rod (500) is hingedly connected to the rotating bracket (620), in a straight-line travel state of the floor cleaning machine, in the orthographic projection of the surface (700) to be cleaned, the included angle between the operating rod (500) relative to the rotating axis of the rotating bracket (620) and the connecting line of the first brush disc assembly (200) and the second brush disc assembly (300) is not more than 10°.

5. The scrubber of claim 3, wherein, The end of the first brush disc assembly (200) away from the second brush disc assembly (300) is provided with a second elastic member (140) between the base (100), the floor cleaning machine comprises a pressing bracket (150) hingedly connected to the base (100), the pressing bracket (150) comprises a pressing bracket pressing portion (151), the pressing bracket pressing portion (151) is pressed against the end of the first brush disc assembly (200) away from the second brush disc assembly (300), the floor cleaning machine comprises a fixed bracket (610), the fixed bracket (610) comprises a concave round structure (611), the base (100) comprises a convex round structure (170), the concave round structure (611) is arranged on the convex round structure (170) to form a hinge, and the pressing bracket (150) is fixed to the fixed bracket (610).

6. The walk-behind scrubber of claim 1, wherein, The first brush disc assembly (200) is hingedly connected to the base (100), the floor cleaning machine comprises a telescopic rod (930) hingedly connected to one end of the first brush disc assembly (200) or one end of the first brush disc (220), and the inclination degree of the first brush disc (220) can be adjusted through the telescopic movement of the telescopic rod (930).

7. The walk-behind scrubber of claim 1, wherein, The floor cleaning machine comprises a fixed support (610) connected to the base (100), the fixed support (610) comprising a cylindrical fixed support first sleeve (613) and a semi-cylindrical fixed support second sleeve (614), the fixed support second sleeve (614) being located radially outward of the fixed support first sleeve (613), The rotating support (620) comprises a cylindrical rotating support first sleeve (622) and a cylindrical rotating support second sleeve (623), the rotating support second sleeve (623) being located radially outward of the rotating support first sleeve (622), The rotating support first sleeve (622) is rotationally arranged in the fixed support first sleeve (613), the rotating support second sleeve (623) is arranged in the fixed support second sleeve (614), and the rotating support second sleeve (623) is located radially outward of the fixed support first sleeve (613).

8. The machine of claim 7, wherein, The floor cleaning machine comprises a reset elastic member (630), the reset elastic member (630) being a torsion spring, the torsion spring comprising a first elastic arm (631) and a second elastic arm (632) extending radially outward along an axis of rotation of the rotating support (620), The torsion spring is arranged between the fixed support first sleeve (613) and the rotating support second sleeve (623), the rotating support second sleeve (623) being provided with a first extension opening (6231) and a second extension opening (6232) on a peripheral surface thereof, the first elastic arm (631) extending out of the rotating support (620) from the first extension opening (6231), and the second elastic arm (632) extending out of the rotating support (620) from the second extension opening (6232), In an initial state in which the rotating support (620) and the fixed support (610) are not relatively rotated, the first elastic arm (631) and the second elastic arm (632) both abut against the fixed support second sleeve (614), In a rotated state in which the rotating support (620) and the fixed support (610) are relatively rotated, one of the first elastic arm (631) and the second elastic arm (632) abuts against the rotating support (620) and does not abut against the fixed support second sleeve (614), and the other one always abuts against the fixed support second sleeve (614).

9. The machine of claim 7, wherein, The rotating support (620) comprises a receiving portion (624) at a top of the rotating support first sleeve (622), the floor cleaning machine comprises a cam (510) connected to the operating rod (500), the cam (510) being rotationally arranged in the receiving portion (624), The accommodating portion (624) is provided with an accommodating portion communication port (6241) in communication with the rotating support first sleeve (622), the scrubber comprises a driving member (410), the driving member (410) is arranged on the fixed support first sleeve (613), and one end of the driving member (410) abuts against the cam (510) through the accommodating portion communication port (6241).

10. The walk-behind scrubber of claim 7, wherein, The fixed support (610) comprises an axial positioning plate (615), in the height direction, the rotating support (620) abuts against the top of the axial positioning plate (615), The other end of the rotating support first sleeve (622) away from the operating rod (500) is provided with an external thread, the scrubber comprises an axial positioning member (640), the axial positioning member (640) is provided with an internal thread, the axial positioning member (640) is threadedly connected to the other end of the rotating support first sleeve (622), and the axial positioning member (640) abuts against the bottom of the axial positioning plate (615).

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