Window cleaning machine

Abstract

The embodiment of the invention provides a window cleaning machine which comprises a base, a cleaning part, a plurality of scraping strip assemblies and a driving assembly, and the base is provided with a first side and a second side; the multiple scraping strip assemblies are arranged on the first side and the second side of the base correspondingly, and the scraping strip assemblies are movably connected to the base in the direction close to or away from the bottom of the base. The driving assembly is connected to the base, and the output end of the driving assembly is in transmission connection with the scraping strip assembly. The scraping strip assembly comprises a scraping strip frame and a movable part, scraping pieces are arranged on the scraping strip frame and the movable part, the movable part is movably connected to the scraping strip frame in the walking direction perpendicular to the window cleaning machine, a guide structure is arranged between the movable part and the base, and the guide structure is arranged in the mode that when the scraping strip assembly moves towards the bottom of the base, the scraping pieces are arranged on the scraping strip frame. The guide structure forces the movable part to move in the moving direction in the direction away from the scraping strip frame. According to the window cleaning machine, the cleaning range is widened on the basis that the size is not changed.

Description

TECHNICAL FIELD

[0001] The present application relates to the window cleaning technology field, and particularly relates to a window cleaning machine. BACKGROUND

[0002] The window cleaning machine sprays water on the cleaning cloth through a water pump, and then the cleaning cloth is used to wet clean the glass. This cleaning method will cause water stains to remain on the glass after cleaning. The window cleaning machine of the related art cannot process the water stains left on the glass, and the water stains left on the window for a long time will leave marks after evaporation, resulting in poor cleaning effect of the window cleaning machine on the window.

[0003] The window cleaning machine of the related art is provided with a liftable scraping strip assembly, which is used to clean the water stains left on the window.

[0004] However, the scraping strip assembly of the related art has a small cleaning range. If the cleaning range of the scraping strip assembly is increased, the overall size of the window cleaning machine will inevitably be increased, resulting in an increase in the volume of the window cleaning machine. Therefore, the window cleaning machine of the related art cannot increase the cleaning range while ensuring the volume. SUMMARY

[0005] The present application provides a window cleaning machine, which can improve the cleaning range while ensuring the volume.

[0006] The present application provides a window cleaning machine, which comprises a base, a cleaning piece, a plurality of scraping strip assemblies and a driving assembly. Along the walking direction of the window cleaning machine, the base has opposite first and second sides. The cleaning piece is connected to the bottom of the base and is suitable for cleaning the window surface when the window cleaning machine is walking. The plurality of scraping strip assemblies are respectively arranged on the first and second sides of the base to sandwich the cleaning piece therebetween. The scraping strip assemblies are movably connected to the base along the direction of approaching or moving away from the bottom of the base. The driving assembly is connected to the base, and the output end of the driving assembly is drivingly connected to the scraping strip assemblies to drive the scraping strip assemblies to extend out of the base towards the bottom of the base or to be retracted into the base away from the bottom of the base. The scraping strip assembly comprises a scraping strip frame and a movable part. The scraping strip frame and the movable part are both provided with scraping pieces. The movable part is movably connected to the scraping strip frame along the direction perpendicular to the walking direction of the window cleaning machine. A guide structure is arranged between the movable part and the base. The guide structure is arranged to force the movable part to move away from the scraping strip frame in the moving direction when the scraping strip assembly moves towards the bottom of the base.

[0007] The present application arranges the scraping strip assembly to be relatively movable, that is, the movable part and the scraping strip frame. When the scraping strip assembly extends out of the base to clean the window surface, the movable part moves away from the scraping strip frame along the direction perpendicular to the walking direction of the window cleaning machine. The movement of the movable part relative to the scraping strip frame can expand the scraping range of the scraping strip assembly in the transverse direction, which is beneficial to improving the cleaning range without increasing the overall size of the window cleaning machine and improving the cleaning efficiency of the window cleaning machine.

[0008] In a possible implementation, the guide structure comprises a guide groove and a guide piece, one of the guide groove and the guide piece is arranged on the base, and the other is arranged on the movable part, the guide piece is adapted to be inserted into the guide groove, the guide groove has a groove body, the groove body has a first end and a second end, the first end and the second end are arranged at intervals along the moving direction of the blade assembly, and the second end is arranged closer to the bottom of the base than the first end, along the moving direction of the movable part relative to the blade holder, the second end is arranged closer to the peripheral wall of the base than the first end, and the groove body is a straight line groove extending from the first end to the second end.

[0009] In a possible implementation, the movable part is provided with an insertion groove, the insertion groove has a first clamping part, the blade holder is provided with an insertion piece, the insertion piece is provided with a second clamping part, the insertion piece is inserted into the insertion groove, and the first clamping part is clamped in the second clamping part to limit the insertion piece from being separated from the insertion groove.

[0010] In a possible implementation, the blade assembly has a transmission part, the transmission part comprises a first transmission piece and a second transmission piece, the first transmission piece and the second transmission piece are arranged at intervals along the moving direction of the blade assembly, and a gap forms a moving groove, the driving assembly has a driving piece and a driving piece, the driving piece is a driving motor, the driving piece has a first abutting end and a second abutting end arranged oppositely, and a connecting end between the first abutting end and the second abutting end, the distance from the first abutting end to the connecting end is greater than the distance from the second abutting end to the connecting end, the driving piece is located in the moving groove, the output end of the driving piece is connected to the connecting end and is adapted to drive the driving piece to rotate in the moving groove, and the first abutting end is adapted to alternately abut against the first transmission piece and the second transmission piece.

[0011] In a possible implementation, the base comprises a side frame, the side frame has a first frame body and a second frame body, the first frame body and the second frame body are connected, the first frame body is arranged close to the bottom of the base, the first frame body is provided with a receiving groove along the height direction of the base, the receiving groove penetrates through the first frame body, the bottom of the base is provided with a space part corresponding to the receiving groove, the blade assembly is movably arranged in the receiving groove, and the end part is adapted to extend out of the base from the space part.

[0012] In a possible implementation, the receiving groove is provided with a first limiting piece, the first limiting piece is provided with a first limiting groove along the height direction of the base, the blade assembly is provided with a second limiting piece at a position corresponding to the first limiting groove, and the second limiting piece is inserted into the first limiting groove.

[0013] In a possible implementation, the first limiting piece is further provided with a second limiting groove along the height direction of the base, the second limiting groove is communicated with the first limiting groove, the blade assembly is further provided with a third limiting piece, the third limiting piece and the second limiting piece are arranged at intervals along the height direction of the base, and the third limiting piece is inserted into the second limiting groove.

[0014] In a possible implementation, two wiper strip assemblies are provided, and the two wiper strip assemblies are respectively arranged on the first side and the second side. Two driving assemblies are provided, and the two driving assemblies are respectively connected to the two wiper strip assemblies in a transmission mode. The two driving assemblies are suitable for independently driving the two wiper strip assemblies to ascend and descend.

[0015] In a possible implementation, the wiper strip assembly includes a wiper strip frame and a wiper strip. The wiper strip frame is suitable for being connected to the driving assembly in a transmission mode. The wiper strip is suitable for cleaning a window surface. The wiper strip frame and the wiper strip are connected in a detachable mode through a clamping structure, a buckling structure or a screw.

[0016] In a possible implementation, the wiper strip has a mounting end. The mounting end has a first connecting part and a second connecting part connected to each other. The wiper strip frame has a mounting part. The mounting part has a first connecting groove and a second connecting groove. One end of the first connecting groove is communicated with the second connecting groove. The other end of the first connecting groove extends to an end face of the mounting part to form an opening. The width of the first connecting groove is smaller than the width of the second connecting groove. The first connecting part is inserted into the first connecting groove. The second connecting part is inserted into the second connecting groove. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0018] Figure 1 An exploded view of a window cleaning machine according to an embodiment of the present application is shown;

[0019] Figure 2 An exploded view of a wiper strip assembly according to an embodiment of the present application is shown;

[0020] Figure 3 A sectional view of a first frame according to an embodiment of the present application is shown;

[0021] Figure 4 A sectional view of a window cleaning machine according to an embodiment of the present application is shown;

[0022] Figure 5 A structural schematic view of a driving assembly according to an embodiment of the present application is shown;

[0023] Figure 6 A sectional view of a cooperation between a driving assembly and a wiper strip assembly according to an embodiment of the present application is shown;

[0024] Figure 7 An exploded view of another wiper strip assembly according to an embodiment of the present application is shown;

[0025] Figure 8 A structural schematic view of a window cleaning machine according to an embodiment of the present application is shown;

[0026] Figure 9 A structure diagram is shown Figure 6 A structure diagram is shown

[0027] Figure 10 A structure diagram is shown

[0028] Reference signs:

[0029] 10, base; 11, upper cover; 12, side frame; 121, first frame body; 1211, accommodating groove; 1212, through hole; 1213, accommodating groove; 1214, adsorption part; 1215, guide groove; 125a, first end; 125b, second end; 125c, groove body; 122, second frame body; 123, first limiting piece; 1231, first limiting groove; 1232, second limiting groove; 13, base; 131, opening; 14, first side; 15, second side; 20, cleaning piece; 30, moving assembly; 31, power piece; 32, moving piece; 40, scraping strip assembly; 41, scraping strip frame; 411, mounting part; 4111, first connecting groove; 4112, second connecting groove; 412, transmission part; 4121, first transmission piece; 4122, second transmission piece; 4123, movable groove; 413, second limiting piece; 414, third limiting piece; 415, plug-in piece; 4151, second clamping part; 42, scraping piece; 421, mounting end; 4211, first connecting part; 4212, second connecting part; 422, scraping end; 43, movable part; 431, plug-in groove; 4311, first clamping part; 432, guide piece; 50, driving assembly; 51, driving seat; 52, driving piece; 53, driving piece; 531, first abutting end; 532, second abutting end; 533, connecting end.

[0030] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0032] Reference is made to Figure 1As shown, the present application provides a window cleaning machine suitable for cleaning windows, the window cleaning machine comprises a base 10, a cleaning member 20, a plurality of squeegee strip assemblies 40 and a driving assembly 50. The base 10 is the main structure of the window cleaning machine, which serves as the overall frame of the window cleaning machine, can provide installation environment for the remaining structures of the window cleaning machine, and can also be used to support and protect the remaining structures of the window cleaning machine. The base 10 can be made of plastic or metal material, which is not specially limited here and needs to be determined according to actual conditions.

[0033] It should be noted that when cleaning the window with the window cleaning machine, the window cleaning machine needs to be driven to walk on the window so that the window cleaning machine can walk to the stain position on the window to clean the stain. In order to ensure that the window cleaning machine can automatically walk on the window, the window cleaning machine is also provided with a moving assembly 30, which comprises a moving member 32 and a power member 31. The moving member 32 is suitable for driving the base 10 to move, and the power member 31 is suitable for providing power. Specifically, the moving member 32 can be a roller structure or a track structure, and the power member 31 can be only a driving motor or can also be formed by a combination of a driving motor and a gear transmission structure. One end of the moving member 32 can extend out of the base 10, and when the base 10 is adsorbed to the window, the end of the moving member 32 extending out of the base 10 is attached to the window. When the moving member 32 moves, it can drive the base 10 to move, thereby realizing the movement of the entire window cleaning machine.

[0034] It is worth mentioning that according to actual conditions, the window cleaning machine has a walking direction set in advance when walking on the window, which is parallel to the length direction or width direction of the base 10, or the walking direction can be perpendicular to the height direction of the base 10. For the sake of convenience, the present application introduces a three-dimensional rectangular coordinate system, in which the X-axis direction is parallel to the length direction of the base 10 and also parallel to the length direction of the window cleaning machine; the Y-axis is parallel to the width direction of the base 10 and also parallel to the width direction of the window cleaning machine; and the Z-axis is parallel to the height direction of the base 10 and also parallel to the height direction of the window cleaning machine. It should be noted that since the shape of the base 10 can be determined according to actual needs, for example, the base 10 as a whole can be square, rectangular or circular, etc., therefore, the length of the base 10 can be equal to the width of the base 10, and the present application takes the base 10 as a whole as a square as an example for description. When the window cleaning machine walks, it moves along the length direction of the base 10, that is, the length direction of the base 10 and the running direction of the window cleaning machine are always parallel.

[0035] The cleaning member 20 can be a cleaning brush or a cleaning roller brush, and the base 10 has a bottom 13. When the base 10 is adsorbed to the window, the bottom 13 faces the window and is arranged close to the window. The cleaning member 20 is connected to the bottom 13 of the base 10 and is arranged towards the window. When the base 10 is adsorbed to the window, part of the cleaning member 20 can contact the window. When the base 10 is moved along the window surface under the drive of the moving assembly 30, the cleaning member 20 is suitable for cleaning the window surface.

[0036] In the moving direction of the window cleaner, the base 10 has opposite first and second sides 14 and 15. At least part of the squeegee assemblies 40 are arranged on the first side 14, and the other part of the squeegee assemblies 40 are arranged on the second side 15. Thus, the cleaning member 20 can be clamped between the squeegee assemblies 40 on the two sides. The squeegee assemblies 40 are movably connected to the base 10 in the direction close to or away from the bottom of the base 10. The squeegee assemblies 40 can reciprocate relative to the base 10. When the squeegee assemblies 40 move towards the bottom of the base 10, the end of the squeegee assemblies 40 can extend out of the base 10 and abut against the window. When the squeegee assemblies 40 move away from the bottom of the base 10, the squeegee assemblies 40 can be retracted into the base 10.

[0037] The driving assembly 50 is connected to the base 10, and the output end of the driving assembly 50 is drivingly connected to the squeegee assemblies 40 to drive the squeegee assemblies 40 to extend out of the base 10 towards the bottom of the base 10 or to retract into the base 10 away from the bottom of the base 10.

[0038] The squeegee assembly 40 of the present application comprises a squeegee frame 41 and a movable part 43. The squeegee frame 41 and the movable part 43 are both provided with a squeegee 42. The movable part 43 is movably connected to the squeegee frame 41 in the direction perpendicular to the moving direction of the window cleaner. The moving direction of the movable part 43 relative to the squeegee frame 41 is parallel to the Y direction. A guide structure is arranged between the movable part 43 and the base 10. The guide structure is arranged to force the movable part 43 to move in the moving direction away from the squeegee frame 41 when the squeegee assembly 40 moves towards the bottom of the base 10. It can be understood that, when the squeegee assembly 40 moves towards the bottom of the base 10 to abut against the window surface, the movable part 43 moves in the Y direction away from the squeegee frame 41 under the action of the guide structure, and the movable part 43 also moves towards the bottom of the base 10 with the squeegee frame 41 to make the end of the movable part 43 abut against the window surface to clean the window surface. When the squeegee assembly 40 moves away from the bottom of the base 10 to retract into the base 10, the movable part 43 moves in the Y direction towards the squeegee frame 41 under the action of the guide structure, and the movable part 43 and the squeegee frame 41 overlap in the X direction.

[0039] Therefore, the squeegee assembly 40 is arranged with the movable part 43 and the squeegee frame 41, when the squeegee assembly extends out of the base 10 to clean the window surface, the movable part 43 moves away from the squeegee frame 41 along a direction perpendicular to the moving direction of the window cleaning machine. The movement of the movable part 43 relative to the squeegee frame 41 can expand the squeegee range of the squeegee assembly 40 laterally, which is beneficial to improve the cleaning range and the cleaning efficiency of the window cleaning machine without increasing the overall size of the window cleaning machine.

[0040] Referring to Figures 1 to 3 In some embodiments, the guide structure can be a sliding rail and sliding block cooperation structure, or can also be a sliding groove and sliding block cooperation structure, or can also be a cooperation structure formed by sleeving a sliding ring on the outer wall of the sliding block. In summary, the guide structure is composed of two cooperation structures, and one of the two cooperation structures can move linearly relative to the other. The guide structure includes the guide groove 1215 and the guide piece 432, one of which is arranged on the base 10 and the other is arranged on the movable part 43. The guide piece 432 is a protruding structure, and the guide groove 1215 is a recessed structure. The guide piece 432 is adapted to be inserted into the guide groove 1215, and the guide piece 432 can move along the path of the guide groove 1215 in the guide groove 1215.

[0041] Specifically, the guide groove 1215 is arranged on the base 10, and the guide groove 1215 has a first end 125a and a second end 125b, and a groove body 125c connected between the first end 125a and the second end 125b. Along the moving direction of the squeegee assembly 40, the first end 125a and the second end 125b are arranged at intervals, and the second end 125b is arranged closer to the bottom of the base 10 relative to the first end 125a, that is, the relative position of the second end 125b of the guide groove 1215 in space is lower than the position of the first end 125a. Along the moving direction of the movable part 43 relative to the squeegee frame 41, the second end 125b is arranged closer to the outer peripheral wall of the base 10 relative to the first end 125a, that is, the second end 125b is arranged closer to the outside of the base 10 relative to the first end 125a. The groove body 125c is a straight groove extending from the first end 125a to the second end 125b. Through the above arrangement, the guide groove 1215 is arranged as an inclined groove structure, and the path and the moving direction of the movable part 43 are arranged at an angle, and the moving direction of the squeegee assembly 40 is arranged at an angle. When the guide piece 432 moves in the guide groove 1215, the moving path of the guide piece 432 can be divided into two sub-paths, one of which is parallel to the moving direction of the movable part 43, and the other is parallel to the moving direction of the squeegee assembly 40. In this way, when the squeegee assembly 40 moves, the cooperation of the guide groove 1215 and the guide piece 432 can guide the movable part 43 to move relative to the squeegee frame 41.

[0042] In some embodiments, the movable part 43 is provided with a plug slot 431, and the squeegee frame 41 is provided with a plug 415 which is adapted to be plugged into the plug slot 431. The relative movement between the movable part 43 and the squeegee frame 41 can be achieved by the cooperation between the plug 415 and the plug slot 431. Specifically, the plug slot 431 is formed at one end of the movable part 43 which faces the squeegee frame 41, and the plug slot 431 has a first clamping portion 4311 which is located at the end of the plug slot 431 which is away from the squeegee frame 41, and the size of the first clamping portion 4311 is greater than that of the rest of the plug slot 431. The plug 415 is protruded at one end of the squeegee frame 41 which faces the movable part 43, and the plug 415 is provided with a second clamping portion 4151 at the end which is close to the movable part 43, and the size of the second clamping portion 4151 is greater than that of the rest of the plug 415, and is adapted to the size of the first clamping portion 4311. The plug slot 431 is formed along the movement direction of the movable part 43 (i.e. the direction which is parallel to the Y direction), and the plug slot 431 is provided with an opening 131 at one end of the direction along which the plug slot 431 is formed, and one end of the plug 415 can be plugged into the plug slot 431 from the opening 131, and the first clamping portion 4311 is clamped to the second clamping portion 4151, so that the plug 415 can only be pulled out of the opening 131 of the plug slot 431, so as to limit the plug 415 from being separated from the plug slot 431 at a position which is away from the opening 131 of the plug slot 431.

[0043] It is worth mentioning that the window cleaning machine can move reciprocally along a direction on the window, i.e. the window cleaning machine has a first movement stroke along the direction from the second side 15 to the first side 14, and also has a second movement stroke along the direction from the first side 14 to the second side 15. The movement of the window cleaning machine along the first movement stroke is referred to as the forward movement of the window cleaning machine, and the movement of the window cleaning machine along the second movement stroke is referred to as the reverse movement of the window cleaning machine, and the window cleaning machine can be switched between the forward movement and the reverse movement to move reciprocally on the window.

[0044] In addition, when the window cleaning machine moves, the squeegee assembly 40 which is in front of the cleaning member 20 in the movement direction of the window cleaning machine is the front end squeegee assembly 40 of the window cleaning machine, and the squeegee assembly 40 which is behind the cleaning member 20 in the movement direction of the window cleaning machine is the rear end squeegee assembly 40 of the window cleaning machine.

[0045] In combination Figure 4As shown, it can be known from the above that the first side 14 and the second side 15 of the base 10 of the application are both provided with the wiper strip assembly 40 along the walking direction of the window cleaning machine, and the wiper strip assembly 40 and the cleaning assembly can cooperate to improve the cleaning degree of the window when the window cleaning machine is used to clean the window. Specifically, the wiper strip assembly 40 of the first side 14 and the second side 15 has three states. Respectively, the first state is that when the window cleaning machine walks on the window, the front end wiper strip assembly 40 is lowered to abut the window, and the rear end wiper strip assembly 40 is lifted to be separated from the window. At this time, when the window cleaning machine walks, the front end wiper strip assembly 40 can pre-clean the stains on the window, which plays a pre-cleaning role. When the window cleaning machine continues to move to the cleaning range of the cleaning piece 20, the cleaning piece 20 continues to clean the stains cleaned by the front end wiper strip assembly 40, so as to improve the cleaning effect; the second state is that when the window cleaning machine walks on the window, the rear end wiper strip assembly 40 is lowered to abut the window, and the front end wiper strip assembly 40 is lifted to be separated from the window. At this time, when the window cleaning machine walks, it is first moved to make the stains on the window located in the cleaning range of the cleaning assembly, and then the cleaning piece 20 is used to clean the stains, and the window cleaning machine continues to walk and passes through the rear end wiper strip assembly 40 to clean the position cleaned by the cleaning piece 20, so as to clean the cleaning liquid and other water stain residues left after the cleaning of the cleaning piece 20, and ensure the cleaning effect; the third state is that when the window cleaning machine walks on the window, the front end wiper strip assembly 40 and the rear end wiper strip assembly 40 are both lowered to abut the window. At this time, when the window cleaning machine walks, the front end wiper strip assembly 40 can pre-clean the stains on the window, which plays a pre-cleaning role, and when the window cleaning machine continues to move to the cleaning range of the cleaning piece 20, the cleaning piece 20 continues to clean the stains cleaned by the front end wiper strip assembly 40. Finally, the window cleaning machine continues to walk and passes through the rear end wiper strip assembly 40 to clean the position cleaned by the cleaning piece 20, so as to clean the cleaning liquid and other water stain residues left after the cleaning of the cleaning piece 20, so as to improve the cleaning effect.

[0046] Therefore, the window cleaning machine of the application can realize three different cleaning states according to the actual situation, so that the way of cleaning the window is more flexible, and the cleaning degree of the window is improved.

[0047] Referring to Figure 1 , Figures 5 to 7As shown, the lifting of the wiper strip assembly 40 of the present application is realized by the driving of the driving assembly 50, specifically, the wiper strip assembly 40 has a transmission part 412, the driving assembly 50 has a driving member 52 and a driving member 53, the driving member 53 is connected to the output end of the driving member 52, and the transmission part 412 and the driving member 53 are in transmission connection. The output end of the driving member 52 outputs a driving force, the driving force is output to the driving member 53 to drive the driving member 53, the driving member 53 and the transmission part 412 are in transmission connection, and the driving member 53 is adapted to transmit the driving force of the driving member 52 to the transmission part 412 to drive the wiper strip assembly 40 to reciprocate along the active direction. Through the cooperation of the transmission part 412 and the driving member 53, the wiper strip assembly 40 can be driven to lift under the driving of the driving member 52.

[0048] The cooperation structure between the transmission part 412 and the driving member 53 can be a gear and rack cooperation structure or a worm and gear cooperation structure, in the embodiment of the present application, the transmission part 412 and the driving member 53 adopt a simple cooperation structure to ensure the simple structure of the window cleaning machine.

[0049] Specifically, the transmission part 412 includes a first transmission member 4121 and a second transmission member 4122, the first transmission member 4121 and the second transmission member 4122 are arranged in the active direction of the wiper strip assembly 40, and the gap forms an active groove 4123. The driving member 52 is a driving motor, the output end of the driving member 52 is adapted to output a rotating force, the driving member 53 is connected to the output end of the driving member 52, and the driving member 52 is adapted to drive the driving member 53 to rotate.

[0050] It should be noted that the driving member 53 has a first abutting end 531 and a second abutting end 532 arranged oppositely, and a connecting end 533 between the first abutting end 531 and the second abutting end 532, the straight line distance from the first abutting end 531 to the connecting end 533 is greater than the straight line distance from the second abutting end 532 to the connecting end 533. In this way, the driving member 53 forms an eccentric structure, the driving member 53 is arranged in the active groove 4123, the output end of the driving member 52 is connected to the connecting end 533 and is adapted to drive the driving member 53 to rotate in the active groove 4123.

[0051] It is worth mentioning that when the driving member 53 rotates, the first abutting end 531 of the driving member 53 is adapted to abut the first transmission member 4121 and the second transmission member 4122 alternately. Specifically, when the driving member 53 rotates to the first abutting end 531 abutting the first transmission member 4121, the wiper strip assembly 40 is in the lifting state, and when the driving member 53 rotates to the first abutting end 531 abutting the second transmission member 4122, the first abutting end 531 is adapted to force the second transmission member 4122 to descend, thereby driving the wiper strip assembly 40 to descend to abut the window surface. By setting the structure of the driving member 53, the driving member 53 can form an eccentric structure, and under the driving of the driving member 52, the first abutting end 531 of the driving member 53 can abut the first transmission member 4121 and the second transmission member 4122 alternately, thereby realizing the lifting and descending of the wiper strip assembly 40. Such an eccentric structure setting can simplify the transmission structure, thereby reducing the number of structures.

[0052] In some embodiments, as known from the above, the lifting and descending of the wiper strip assembly 40 mainly rely on the cooperation between the first abutting end 531 and the first transmission member 4121 and the second transmission member 4122. The driving member 53 is an eccentric structure, the first abutting end 531 and the second abutting end 532 are located on the peripheral side wall of the driving member 53, and the first abutting end 531 and the second abutting end 532 are always located on opposite sides of the peripheral side wall of the driving member 53. In order to ensure that the position of the driving member 53 in the activity slot 4123 and the wiper strip assembly 40 is relatively stable when the first abutting end 531 abuts the first transmission member 4121 and the second transmission member 4122, the distance between the first abutting end 531 and the second abutting end 532 is equal to the distance between the first transmission member 4121 and the second transmission member 4122. In this way, when the first abutting end 531 abuts the first transmission member 4121, the second abutting end 532 can abut the second transmission member 4122, and when the first abutting end 531 abuts the second transmission member 4122, the second abutting end 532 can abut the first transmission member 4121. When the wiper strip assembly 40 is in the lifting state and the descending state, the peripheral side wall of the driving member 53 abuts the first transmission member 4121 and the second transmission member 4122, which prevents the wiper strip assembly 40 from moving in the activity direction relative to the driving member 53, thereby ensuring the stability of the position of the wiper strip assembly 40 when wiping the window.

[0053] In some embodiments, the wiper strip assembly 40 comprises a wiper strip frame 41 and a wiper 42, the wiper strip frame 41 is adapted to be in transmission connection with the driving assembly 50, and the wiper 42 is adapted to clean the window surface. It can be understood that the wiper strip frame 41 is a mounting structure of the wiper strip assembly 40, which can be made of hard plastic or metal material to ensure its strength and mounting strength. The wiper 42 is used to wipe the stains or water stains on the window. In order to avoid scratching the window by the wiper 42, the wiper 42 can be made of flexible material, such as silicone or rubber.

[0054] The scraper strip frame 41 and the scraping piece 42 can be integrally formed, or the scraper strip frame 41 and the scraping piece 42 can also be separately provided. The present application takes the scraper strip frame 41 and the scraping piece 42 as an example to be separately provided, at this time the scraper strip frame 41 and the scraping piece 42 can be connected by bonding, or by a clamping structure, a buckling structure or a screw detachable connection. In this way, the setting between the scraper strip frame 41 and the scraping piece 42 is more flexible, and the scraping piece 42 is convenient to replace and maintain.

[0055] The scraper strip frame 41 includes a mounting portion 411, which is adapted to be mounted and matched with the scraping piece 42, and in addition, the mounting portion 411 can also be used as a mounting carrier of the transmission member. Specifically, the width direction of the mounting portion 411 is parallel to the moving direction of the scraper strip assembly 40, and the scraping piece 42 is mounted at one end of the width direction of the mounting portion 411. The first transmission member 4121 and the second transmission member 4122 are connected to one side of the thickness direction of the mounting portion 411, and are spaced apart along the width direction of the mounting portion 411, and the first transmission member 4121 and the second transmission member 4122 form a transmission portion 412 on the mounting portion 411 for cooperating with the driving assembly 50.

[0056] In some embodiments, the scraping piece 42 has a mounting end 421 adapted to be connected with the mounting portion 411. Specifically, the mounting end 421 has a first connecting portion 4211 and a second connecting portion 4212 connected with each other, and one end of the width direction of the mounting portion 411 has a first connecting groove 4111 and a second connecting groove 4112. Among them, the first connecting groove 4111 and the second connecting groove 4112 are arranged along the width direction of the mounting portion 411, and the first connecting groove 4111 is arranged more close to the end of the width direction of the mounting portion 411 than the second connecting groove 4112. The first connecting groove 4111 and the second connecting groove 4112 both extend along the length direction of the mounting portion 411, and both ends of the extension direction of the first connecting groove 4111 and the second connecting groove 4112 extend to the two end faces of the length direction of the mounting portion 411, so as to form an opening 131 on the end face of the length direction of the mounting portion 411. The end of the first connecting groove 4111 close to the second connecting groove 4112 is communicated with the second connecting groove 4112, and the end of the first connecting groove 4111 away from the second connecting groove 4112 extends to the end face of the width direction of the mounting portion 411, so as to form an opening 131 on the end face. In the thickness direction of the mounting portion 411, the width of the first connecting groove 4111 is smaller than the width of the second connecting groove 4112, so that the first connecting groove 4111 and the second connecting groove 4112 form a "T" type groove structure.

[0057] The shape and size of the first connecting portion 4211 are adapted to the first connecting groove 4111, and the shape and size of the second connecting portion 4212 are adapted to the second connecting groove 4112. Therefore, the second connecting portion 4212 can be inserted into the second connecting groove 4112 from the opening 131 of the second connecting groove 4112 in the length direction of the mounting portion 411, and the first connecting portion 4211 can be inserted into the first connecting groove 4111 from the opening 131 of the first connecting groove 4111 in the length direction of the mounting portion 411. At this time, part of the structure of the first connecting portion 4211 can protrude out of the first connecting groove 4111 from the opening 131 on the end surface of the mounting portion 411 in the width direction, and the structure of the first connecting portion 4211 protruding out is adapted to form the scraping end 422. Through the above arrangement, a "T"-shaped groove can be formed on the mounting portion 411, and by arranging the mounting end 421 of the scraping piece 42, the mounting end 421 can be inserted into the "T"-shaped groove, thereby achieving the clamping connection of the scraping piece 42 and the mounting portion 411.

[0058] Referring to Figure 1 As shown in the drawings, in some embodiments, the base 10 further comprises a cover 11 and a side frame 12, and the side frame 12 is provided with a receiving space, and one end of the receiving space is provided with an opening 131 in the height direction of the side frame 12. The cover 11 is adapted to be arranged outside the side frame 12 to block the opening 131 of the side frame 12, and the base 13 is adapted to be fixedly connected with the side frame 12 and / or the cover 11. In this way, the assembly of the base 10 is realized to form a receiving cavity inside the base 10 for accommodating the driving assembly 50, the concave assembly, the moving assembly 30 and other structures. It should be noted that the connection between the cover 11 and the side frame 12, the connection between the base 13 and the side frame 12 and / or the cover 11 can be achieved by a clamping structure, a buckling structure or a screw structure to realize detachable connection, which is not specially limited in the present application.

[0059] The scraping strip assembly 40 of the present application is movably arranged in the side frame 12. Specifically, the side frame 12 has a first frame body 121 and a second frame body 122, and the first frame body 121 and the second frame body 122 can be stacked in the height direction of the side frame 12 and can be connected by a clamping structure, a buckling structure or a screw structure. One end of the first frame body 121 is provided with a receiving groove 1213 to form a receiving space, and the other end is connected with the base 13. The second frame body 122 is an annular frame body, and in the height direction of the base 10, the second frame body 122 is stacked at the end of the first frame body 121 away from the base 13, that is, the second frame body 122 is arranged at the opening 131 of the first frame body 121, and the inner annular shape and size of the second frame body 122 are adapted to the shape and size of the opening 131 of the receiving groove 1213 of the first frame body 121.

[0060] Along the length direction of the base 10, the first frame body 121 has two opposite frames, i.e., the first side 14 and the second side 15 of the first frame body 121, which are suitable for being movably connected with the scraping strip assembly 40. The specific connection manner is consistent, and thus, the application can be described by taking the frame of one side and the scraping strip assembly 40 as an example.

[0061] The first side 14 of the first frame body 121 is provided with a receiving groove 1211 in the height direction of the base 10. The receiving groove 1211 extends along the width direction of the first frame body 121, and extends towards the base 13 in the height direction of the base 10 and penetrates the base 13 of the base 10, or the receiving groove 1211 only penetrates the first frame body 121 in the height direction of the base 10. The base 13 is provided with a gap groove at the position corresponding to the receiving groove 1211, or is provided with a gap part at the position corresponding to the receiving groove 1211. The scraping strip assembly 40 is movably arranged in the receiving groove 1211, and the scraping end 422 of the scraping piece 42 can extend out of the first frame body 121 towards the base 13 to abut against the window surface. In this way, the movement direction of the scraping strip assembly 40 can be set as parallel to the height direction of the base 10. In the embodiment of the application, along the height direction of the base 10, a gap is arranged between the edge of the base 13 and the receiving groove 1211 in the first body, so that a gap space is formed between the base 13 and the receiving groove 1211, preventing the base 13 from hindering the extension of the scraping strip assembly 40 out of the receiving groove 1211.

[0062] It should be noted that the second frame body 122 can be provided with a limiting structure corresponding to the position of the receiving groove 1211 for limiting the scraping strip assembly 40. When the scraping strip assembly 40 is lifted, the scraping strip assembly 40 moves towards the second frame body 122, and the limiting structure on the second frame body 122 can be used to limit the lifting height of the scraping strip assembly 40. Alternatively, the second frame body 122 is also provided with a receiving groove 1211, and the receiving groove 1211 of the first frame body 121 and the receiving groove 1211 of the second frame body 122 have the same shape and size. When the first frame body 121 and the second frame body 122 are connected, the two receiving grooves 1211 are oppositely and continuously arranged, and the two receiving grooves 1211 together form a receiving space suitable for the movement of the scraping strip assembly 40.

[0063] In combination Figure 10As shown, in order to make the window cleaning machine adsorbed on the window, the first frame 121 is further provided with an adsorption part 1214 on the end face of the base 13. A negative pressure generating structure such as a vacuum pump is arranged inside the base 10, one end of the negative pressure generating structure is connected to the adsorption part 1214, and the adsorption part 1214 is provided with a plurality of hole structures suitable for communicating the inside of the base 10 and the outside environment. A negative pressure can be generated in the adsorption part 1214 through the negative pressure structure to adsorb the window cleaning machine on the window. The cleaning piece 20 of the present application is connected to the end of the base 13 away from the first frame 121, and the cleaning piece 20 can be a cleaning cloth. When the window cleaning machine is adsorbed on the window, the cleaning cloth is attached to the window surface. The base 13 is provided with an opening 131 corresponding to the position of the adsorption part 1214 to facilitate the exposure of the adsorption part 1214. When the adsorption part 1214 generates a negative pressure, it can adsorb the window surface.

[0064] Referring to Figure 1 , Figure 8 and Figure 9 As shown, in some embodiments, the accommodation groove 1211 is provided with a first limiting piece 123, and the two ends of the first limiting piece 123 are respectively connected to the opposite two side walls of the accommodation groove 1211. The first limiting piece 123 is provided with a first limiting groove 1231 in the height direction of the base 10. The wiper strip frame 41 further includes a second limiting piece 413, which is connected to the mounting part 411 or the second limiting piece 413 can also be connected to the first transmission part 4121. The second limiting piece 413 is located at the end of the mounting part 411 away from the scraping piece 42. When the wiper strip assembly 40 is arranged in the accommodation groove 1211, the second limiting piece 413 is located in the first limiting groove 1231, and the size of the second limiting piece 413 in the length direction of the base 10 and the size of the first limiting groove 1231 in the length direction of the base 10 are matched, so that the opposite two sides of the second limiting piece 413 in the X-axis direction are attached to the opposite two side walls of the first limiting groove 1231 in the X-axis direction, which ensures that the second limiting piece 413 will not be offset relative to the first limiting piece 123 in the X-axis direction, so as to ensure the stability of the position of the wiper strip assembly 40 relative to the base 10 in the X-axis direction.

[0065] It should be noted that the second limiting piece 413 of the present application is directly formed at one end of the first transmission piece 4121 in the length direction. Specifically, one end or opposite ends of the first transmission piece 4121 are provided with a notch in the X-axis direction, and the size of the notch in the X-axis direction is smaller than the size thereof in the X-axis direction, so as to form a stepped structure at the end of the first transmission piece 4121. At this time, when the second limiting piece 413 is inserted into the first limiting groove 1231, the first transmission piece 4121 clamps the first limiting piece 123 between the notches formed thereby in the Y direction. In this way, the position of the second limiting piece 413 in the Y direction can be limited, the stability of the second limiting piece 413 in the Y direction is ensured, and thus the position stability of the wiper strip assembly 40 in the Y direction relative to the base 10 is ensured.

[0066] In some embodiments, the first limiting piece 123 is further provided with a second limiting groove 1232 in the height direction of the base 10, the second limiting groove 1232 extends in the X direction, and the second limiting groove 1232 is communicated with the first limiting groove 1231. The wiper strip assembly 40 is further provided with a third limiting piece 414, the third limiting piece 414 is connected to the mounting portion 411, and the third limiting piece 414 protrudes from the mounting portion 411 in the thickness direction of the mounting portion 411. The third limiting piece 414 and the second limiting piece 413 are spaced apart in the height direction of the base 10, and the third limiting piece 414 is located below the second limiting piece 413. When the wiper strip assembly 40 is located in the accommodating groove 1211, the second limiting piece 413 is inserted into the first limiting groove, and the third limiting piece 414 is inserted into the second limiting groove 1232. By providing the third limiting piece 414, the limiting effect can be improved.

[0067] It should be noted that the drive assembly 50 of the present application is arranged in the accommodating space of the base 10, the drive assembly 50 further comprises a drive seat 51, the drive seat 51 is adapted to be detachably connected to the bottom of the first frame body 121 through a clamping structure, a buckling structure or a screw structure, and the drive member 52 can be fixedly connected to the drive seat 51. The drive seat 51 is adapted to support and fix the drive member 52. The first frame body 121 is provided with a through hole 1212 at a position corresponding to the movable groove 4123, the through hole 1212 is communicated with the accommodating groove 1211, the output end of the drive member 52 can be arranged in the through hole 1212, and the drive member 52 extends into the accommodating groove 1211 through the through hole 1212.

[0068] In some specific embodiments, the wiper strip assembly 40 of the present application is provided with two wiper strip assemblies 40, which are arranged on the first side 14 and the second side 15 respectively, and the drive assembly 50 is also provided with two drive assemblies 50, which are drivingly connected to the two wiper strip assemblies 40 respectively, and the two drive assemblies 50 are adapted to independently drive the two wiper strip assemblies 40 to ascend and descend. In this way, the two drive assemblies 50 drive the wiper strip assembly 40 to ascend and descend, so as to facilitate the realization of the state that one of the two wiper strip assemblies 40 on the two sides is lifted and the other is lowered.

[0069] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0070] In the description of the present application, it should be understood that the terms "include" and "have" and any variations thereof used in the embodiments of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including two series of steps or units need not be limited to those clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0071] Unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect", "fix", and the like should be broadly understood, for example, can be fixed connection, can also be detachable connection, or two bodies; can be directly connected, or indirectly connected through an intermediate medium, can be connected inside two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, the terms "second", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0072] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A window cleaning machine, characterized in that, include: A base, along the traveling direction of the window cleaning machine, has a first side and a second side opposite to each other; A cleaning component, connected to the bottom of the base, is adapted to clean the window surface while the window cleaning machine is moving; Multiple scraper assemblies are respectively disposed on the first and second sides of the base to clamp the cleaning component in the middle, and the scraper assemblies are movably connected to the base in the direction close to or away from the bottom of the base; A drive assembly is connected to the base, and the output end of the drive assembly is driven to the scraper assembly to drive the scraper assembly to extend out of the base toward the bottom of the base, or to retract into the base away from the bottom of the base; The scraper assembly includes a scraper frame and a movable part. Both the scraper frame and the movable part are provided with scraping parts. Along the travel direction perpendicular to the window cleaning machine, the movable part is movably connected to the scraper frame. A guide structure is provided between the movable part and the base. The guide structure is configured such that when the scraper assembly moves toward the bottom of the base, the guide structure forces the movable part to move away from the scraper frame in the travel direction.

2. A window cleaning machine according to claim 1, characterized in that, The guiding structure includes a guide groove and a guide member. One of the guide groove and the guide member is disposed on the base, and the other is disposed on the movable part. The guide member is adapted to be inserted into and fitted into the guide groove. The guide groove has a groove body with a first end and a second end. Along the direction of movement of the scraper assembly, the first end and the second end are spaced apart, and the second end is closer to the bottom of the base relative to the first end. Along the direction of movement of the movable part relative to the scraper frame, the second end is closer to the outer peripheral wall of the base relative to the first end. The groove body is a straight groove extending from the first end to the second end.

3. A window cleaning machine according to claim 1, characterized in that, The movable part is provided with a plug-in groove, the plug-in groove has a first snap-fit ​​part, the scraper frame is provided with a plug-in member, the plug-in member is provided with a second snap-fit ​​part, the plug-in member is plugged into and adapted to the plug-in groove, and the first snap-fit ​​part is snapped into the second snap-fit ​​part to prevent the plug-in member from disengaging from the plug-in groove.

4. A window cleaning machine according to claim 1, characterized in that, The scraper assembly has a transmission part, which includes a first transmission member and a second transmission member. The first transmission member and the second transmission member are spaced apart in the direction of movement of the scraper assembly, and the gap forms a movable groove. The drive assembly has a drive member and an active member. The drive member is a drive motor. The active member has a first abutting end and a second abutting end disposed opposite to each other, and a connecting end located between the first abutting end and the second abutting end. The distance from the first abutting end to the connecting end is greater than the distance from the second abutting end to the connecting end. The active member is located in the movable groove. The output end of the drive member is connected to the connecting end and is adapted to drive the active member to rotate in the movable groove. The first abutting end is adapted to alternately abut against the first transmission member and the second transmission member.

5. A window cleaning machine according to claim 1, characterized in that, The base includes a side frame, which has a first frame and a second frame connected to each other. The first frame is located near the bottom of the base. Along the height direction of the base, the first frame has a receiving groove that extends through the first frame. The bottom of the base has a clearance portion corresponding to the receiving groove. The scraper assembly is movably disposed in the receiving groove, and its end is adapted to extend out of the base from the clearance portion.

6. A window cleaning machine according to claim 5, characterized in that, A first limiting member is provided in the receiving groove. The first limiting member has a first limiting groove along the height direction of the base. The scraper assembly has a second limiting member at the position corresponding to the first limiting groove. The second limiting member is inserted into the first limiting groove.

7. A window cleaning machine according to claim 6, characterized in that, The first limiting member is further provided with a second limiting groove along the height direction of the base, and the second limiting groove is connected to the first limiting groove. The scraper assembly is further provided with a third limiting member, and the third limiting member and the second limiting member are spaced apart along the height direction of the base. The third limiting member is inserted into the second limiting groove.

8. A window cleaning machine according to any one of claims 1-7, characterized in that, Two scraper assemblies are provided, one on the first side and the other on the second side. Two drive assemblies are provided, one driven and the other driven and connected to the other two scraper assemblies. The two drive assemblies are adapted to independently drive the two scraper assemblies to rise and fall.

9. A window cleaning machine according to any one of claims 1-7, characterized in that, The scraper assembly includes a scraper frame and a scraper component. The scraper frame is adapted to be connected to the drive assembly for transmission, and the scraper component is adapted to clean the window surface. The scraper frame and the scraper component are detachably connected by a snap-fit ​​structure, a fastening structure, or screws.

10. A window cleaning machine according to claim 9, characterized in that, The scraper has an installation end, which has a first connecting part and a second connecting part connected to each other. The scraper frame has an installation part, which has a first connecting groove and a second connecting groove. One end of the first connecting groove is connected to the second connecting groove, and the other end of the first connecting groove extends to the end face of the installation part to form an opening. The width of the first connecting groove is smaller than the width of the second connecting groove. The first connecting part is inserted into the first connecting groove, and the second connecting part is inserted into the second connecting groove.

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