Window cleaning machine and cleaning device of window cleaning machine

Abstract

The invention discloses a window cleaning machine and a cleaning device of the window cleaning machine, the window cleaning machine is used for being adsorbed on a to-be-cleaned surface to clean the to-be-cleaned surface, and the window cleaning machine comprises a machine body, a walking device, a negative pressure device and the cleaning device; the cleaning device comprises a first cleaning piece, and the first cleaning piece at least comprises a first part and a second part. At least one structure of the second part is hollow, or the first part is exposed due to the arrangement of the second part. The window cleaning machine is provided with diversified cleaning parts, cleaning of the to-be-cleaned face under different working conditions can be achieved through the synergistic effect of different parts of the cleaning parts, and the cleaning effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and particularly to a window cleaning machine and a cleaning device thereof. Background Art

[0002] With the rapid development of the smart home industry, the window cleaning machine, which is highly representative in cleaning machines, has become an essential part of modern household cleaning equipment. With the advantages of automated and intelligent cleaning, the window cleaning machine effectively solves the safety hazards and low efficiency problems existing in manual window cleaning, and greatly improves the convenience and safety of household cleaning.

[0003] Currently, window cleaning machines on the market generally adopt a single form of cleaning part, such as a cleaning cloth. However, in actual applications, there are various types of stains on the glass surface, including floating dust, oil stains, water stains, rain stains, etc. A single form of cleaning cloth is difficult to meet the cleaning requirements and cannot achieve an ideal cleaning effect. Summary of the Invention

[0004] The main purpose of the present invention is to propose a window cleaning machine and a cleaning device thereof, which have diversified cleaning parts, aiming to achieve the cleaning of the surface to be cleaned under different working conditions through the synergistic effect of different parts of the cleaning parts and improve the cleaning effect.

[0005] To achieve the above object, the present invention proposes a window cleaning machine for adsorbing on the surface to be cleaned to clean the surface to be cleaned. The window cleaning machine includes a body, a traveling device, a negative pressure device, and a cleaning device;

[0006] The traveling device is arranged on the body, and an adsorption space is provided inside the traveling device. The negative pressure device is used to evacuate the adsorption space to make the traveling device adsorb on the surface to be cleaned;

[0007] The cleaning device is used to be installed on the traveling device to clean the surface to be cleaned. The cleaning device includes a first type of cleaning part, and the first type of cleaning part at least includes a first part and a second part;

[0008] At least one structure of the second part is in a hollow shape, or the second part is arranged to expose the first part.

[0009] The present invention also proposes another window cleaning machine for adsorbing on the surface to be cleaned to clean the surface to be cleaned. Among them, the window cleaning machine includes a body, a traveling device, a negative pressure device, and a cleaning device;

[0010] An adsorption space is provided on one side of the body facing the surface to be cleaned. The negative pressure device is used to evacuate the adsorption space to make the body adsorb on the surface to be cleaned;

[0011] The walking device is arranged on the body and beside the adsorption space;

[0012] The cleaning device is used to be installed on the body to clean the surface to be cleaned. The cleaning device includes a first type of cleaning member, and the first type of cleaning member at least includes a first part and a second part;

[0013] At least one structure of the second part is in a hollow shape, or the setting of the second part exposes the first part.

[0014] Optionally, when the second part is in a hollow shape, the structure of the second part includes:

[0015] The second part is in an integral hollow shape, or the second part is in an intermittent hollow shape, or the second part is in a closed hollow shape, or the second part is in a discontinuous hollow shape.

[0016] Optionally, the liquid adsorption performance of the first part is better than that of the second part, so that the first part can transport liquid for the second part.

[0017] Optionally, the liquid locking performance of the second part is better than the liquid locking ability of the first part, so that the second part can adsorb liquid from the surface to be cleaned.

[0018] Optionally, the air permeability of the first part is greater than that of the second part, and the area ratio of the first part to the second part is used to enable the window cleaning machine to adsorb on the surface to be cleaned.

[0019] Optionally, the fluff length of the first part is greater than that of the second part.

[0020] Optionally, the first part and the second part are spliced; or,

[0021] The first part and the second part are laminated; or,

[0022] The first part and the second part are stacked.

[0023] Optionally, the second part is arranged on the first part and on the periphery of the first part.

[0024] Optionally, the cleaning device further includes a second type of cleaning member, and the structure and / or performance of the second type of cleaning member are different from those of the first type of cleaning member;

[0025] The first type of cleaning member and the second type of cleaning member are used to clean the surface to be cleaned respectively.

[0026] Optionally, the first type of cleaning member and the second type of cleaning member are respectively installed on the traveling device so that the window cleaning machine has different cleaning effects.

[0027] Optionally, the number of the traveling devices is two, and an adsorption space is provided in each traveling device;

[0028] One of the first type of cleaning member and the second type of cleaning member is installed on each traveling device.

[0029] Optionally, at least one structure of the first part is in a hollow shape.

[0030] Optionally, the first type of cleaning member and the second type of cleaning member are respectively installed on the machine body so that the window cleaning machine has different cleaning effects.

[0031] The present invention also provides a cleaning device for a window cleaning machine. The cleaning device includes a first type of cleaning member, and the first type of cleaning member at least includes a first part and a second part;

[0032] At least one structure of the second part is in a hollow shape, or the second part is arranged to expose the first part.

[0033] When the window cleaning machine of the present invention is in use, its negative pressure device evacuates the negative pressure of the adsorption space inside the traveling device so that the traveling device adsorbs on the surface to be cleaned, and drives the machine body to travel on the surface to be cleaned through the traveling device. During the traveling process, the cleaning device correspondingly cleans the surface to be cleaned. Specifically, the first type of cleaning member contacts the surface to be cleaned and cleans the surface to be cleaned. Among them, the first type of cleaning member at least includes a first part and a second part. At least one structure of the second part is in a hollow shape, or the second part is arranged to expose the first part. Since there are various types of stains on the surface to be cleaned in practical applications, different parts of the first type of cleaning member have different cleaning characteristics. For example, the first part of the first type of cleaning member can efficiently adsorb floating dust, and the second part can effectively dissolve and remove oil stains. Moreover, the hollow structure of the second part or the arrangement to expose the first part can greatly increase the gas-liquid exchange area between the cleaning member and the surface to be cleaned, improve the air permeability and adsorption capacity, and can absorb excess water faster when dealing with water stains, reducing water mark residues. That is, by setting the first type of cleaning member as a composite structure including at least a first part and a second part, and the second part is a hollow structure design or is arranged to expose the first part, a synergistic cleaning effect is formed by using the material characteristics and structural features of different parts to achieve the cleaning of the surface to be cleaned under different working conditions and improve the cleaning effect. Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of a window cleaning machine in an embodiment of the present invention;

[0035] Figure 2 Schematic structural diagram of a window cleaning machine in another embodiment of the present invention;

[0036] Figure 3 Schematic structural diagram of a first type of cleaning member in an embodiment of the present invention;

[0037] Figure 4 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0038] Figure 5 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0039] Figure 6 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0040] Figure 7 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0041] Figure 8 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0042] Figure 9 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0043] Figure 10 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0044] Figure 11 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0045] Figure 12 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0046] Figure 13 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0047] Figure 14 Schematic structural diagram of the second part of a first type of cleaning member in an embodiment of the present invention;

[0048] Figure 15 Schematic structural diagram of the second part of a first type of cleaning member in another embodiment of the present invention;

[0049] Figure 16 Schematic structural diagram of a window cleaning machine in an embodiment of the present invention;

[0050] Figure 17Schematic diagram of the second part of the first type of cleaning member in another embodiment of the present invention;

[0051] Figure 18 Schematic diagram of the second part of the first type of cleaning member in another embodiment of the present invention;

[0052] Figure 19 Schematic diagram of the second part of the first type of cleaning member in another embodiment of the present invention. Detailed implementation manners

[0053] Next, the solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0055] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0056] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0057] An embodiment of the present invention provides a window cleaning machine for adsorbing to a surface to be cleaned and cleaning the surface to be cleaned. The window cleaning machine involved is only named according to an application scenario of the cleaning machine, and its applicable scenarios can be extended to the cleaning of planes such as walls and ceilings. Therefore, it can also be called a wall cleaning machine, a ceiling cleaning machine, etc. Correspondingly, the surface to be cleaned can be the surface of a window, a wall, a ceiling, etc.

[0058] Refer toFigure 1 , the window cleaning machine includes a machine body 110, a traveling device 120, a negative pressure device, and a cleaning device 130;

[0059] The traveling device 120 is arranged on the machine body 110. An adsorption space is provided inside the traveling device 120. The negative pressure device is used to extract negative pressure from the adsorption space so that the traveling device 120 is adsorbed on the surface to be cleaned;

[0060] The cleaning device 130 is used to be installed on the traveling device 120 to clean the surface to be cleaned. The cleaning device 130 includes a first type of cleaning part 131. The first type of cleaning part 131 at least includes a first part 1311 and a second part 1312. At least one structure of the second part 1312 is in a hollow shape, or the setting of the second part 1312 exposes the first part 1311.

[0061] In the window cleaning machine of this embodiment, the shape of the machine body 110 can be disk-shaped, elliptical disk-shaped, etc. The machine body 110 has a housing, and an installation cavity is formed inside the housing. Other components of the window cleaning machine, such as a control device, a negative pressure device, etc., are installed in the installation cavity, including but not limited to this.

[0062] The traveling device 120 is arranged on the machine body 110, specifically on the side of the machine body 110 facing the surface to be cleaned. When the window cleaning machine is placed on the surface to be cleaned (such as window glass), the traveling device 120 is in contact with the surface to be cleaned, and a frictional force is generated between the traveling device 120 and the surface to be cleaned during operation to drive the machine body 110 to travel on the surface to be cleaned. Among them, the traveling device 120 can adopt a rotary traveling device 120, and specifically, it can be a single disk structure or a multi-disk structure. The traveling device 120 can also be a roller structure, which is set according to actual needs. When the traveling device 120 is a single disk structure, the cleaning component generates a frictional force with the surface to be cleaned through the rotation of a single disk to realize the movement of the machine; when the traveling device 120 is a multi-disk structure, the disks are coaxially sleeved, and the traveling device 120 can generate a frictional force with the surface to be cleaned through a part of the disks to realize the movement of the machine.

[0063] An adsorption space is formed inside the traveling device 120. The negative pressure device can be arranged on the machine body 110 and is connected to the adsorption space formed inside the traveling device 120 to extract the air in the adsorption space. Among them, the negative pressure device can include a fan, an air pump, a vacuum pump, etc. It is easy to understand that when the window cleaning machine is placed on the surface to be cleaned, when the negative pressure device works to extract the air in the adsorption space, an adsorption force can be generated so that the traveling device 120 is adsorbed on the surface to be cleaned, and it can be applied to cleaning scenarios where the surface to be cleaned is vertical or inclined. When facing a cleaning scenario where the surface to be cleaned is horizontal, the negative pressure device can be correspondingly controlled not to work. Optionally, the negative pressure device can adjust the magnitude of the adsorption force by controlling the amount of air it extracts from the adsorption space.

[0064] The cleaning device 130 is installed on the traveling device 120. During the operation of the traveling device 120, the cleaning device 130 comes into contact with the surface to be cleaned and generates a frictional force, thereby cleaning the surface to be cleaned. And, according to different design requirements, the cleaning device 130 on the traveling device 120 can be a fully enclosed design, that is, the cleaning device 130 fully encloses the structural part of the traveling device 120 that acts on the surface to be cleaned, and the traveling device 120 comes into contact with the surface to be cleaned through the cleaning device 130; or, the cleaning device 130 on the traveling device 120 can also be a partially enclosed design, that is, the cleaning device 130 partially wraps the structural part of the traveling device 120 that acts on the surface to be cleaned, and a part of the structure of the traveling device 120 comes into contact with the surface to be cleaned through the cleaning device 130.

[0065] Refer to Figure 2 , the window cleaning machine includes a machine body 110, a traveling device 120, a negative pressure device, and a cleaning device 130;

[0066] On one side of the machine body 110 facing the surface to be cleaned, there is an adsorption space 111. The negative pressure device is used to draw a negative pressure on the adsorption space 111 so that the machine body 110 is adsorbed on the surface to be cleaned;

[0067] The traveling device 120 is arranged on the machine body 110 and is located beside the adsorption space 111;

[0068] The cleaning device 130 is used to be installed on the machine body to clean the surface to be cleaned. The cleaning device 130 includes a first type of cleaning part 131. The first type of cleaning part 131 at least includes a first part 1311 and a second part 1312. At least one structure of the second part 1312 is in a hollow shape, or the setting of the second part 1312 exposes the first part 1311.

[0069] In the window cleaning machine of this embodiment, the shape of the machine body 110 can be square, rectangular, etc. The machine body 110 has a housing, and an installation cavity is formed inside the housing. Other component structures of the window cleaning machine, such as a control device, a negative pressure device, etc., are installed in the installation cavity, including but not limited to this.

[0070] An adsorption space 111 is provided on the machine body 110, and the adsorption space 111 is located on the side of the machine body 110 facing the surface to be cleaned. The negative pressure device can be arranged on the machine body 110 and is connected to the adsorption space 111 on the machine body 110 to extract the air in the adsorption space 111. Among them, the negative pressure device can include a fan, an air pump or a vacuum pump, etc. It is easy to understand that when the window cleaning machine is placed on the surface to be cleaned, when the negative pressure device works to extract the air in the adsorption space 111, an adsorption force can be generated to make the traveling device 120 adsorb on the surface to be cleaned, and it can be applied to cleaning scenarios where the surface to be cleaned is vertical or inclined. When facing a cleaning scenario where the surface to be cleaned is horizontal, it is only necessary to control the negative pressure device not to work. Optionally, the negative pressure device can adjust the magnitude of the adsorption force by controlling the amount of air extracted from the adsorption space 111.

[0071] The traveling device 120 is arranged on the machine body 110, specifically on the side of the machine body 110 facing the surface to be cleaned. Moreover, the traveling device 120 is located beside the adsorption space 111 and does not interfere with it. When the window cleaning machine is placed on the surface to be cleaned (such as a window glass), the traveling device 120 comes into contact with the surface to be cleaned and generates a frictional force during operation to drive the machine body 110 to travel on the surface to be cleaned. Among them, the traveling device 120 can be a crawler-type traveling device 120. For example, the traveling device 120 includes two traveling tracks, and the two traveling tracks are arranged at intervals relative to each other and are distributed on opposite sides of the adsorption space 111. The traveling device 120 drives the machine body 110 to perform straight-line or turning and other traveling actions through the cooperation of the two traveling tracks. Or, the traveling device 120 can also be a roller-type traveling device 120, and this embodiment does not limit this.

[0072] The cleaning device 130 is installed on the machine body 110, specifically on the side of the machine body 110 facing the surface to be cleaned. During the traveling process of the machine body 110, the cleaning device 130 comes into contact with the surface to be cleaned and generates a frictional force, thereby cleaning the surface to be cleaned.

[0073] Among them, the cleaning device 130 includes a first type of cleaning member 131. It can be that the cleaning device 130 only includes the first type of cleaning member 131, or the cleaning device 130 may further include other cleaning members on the basis of including the first type of cleaning member 131, such as a second type of cleaning member 132, a third type of cleaning member, etc. Moreover, the structures, performances, etc. of different types of cleaning members can be different, and this embodiment does not limit this. The cleaning device 130 contacts the surface to be cleaned through its first type of cleaning member 131 and cleans the surface to be cleaned. The first type of cleaning member 131 can be in the form of products such as a cleaning cloth, a cleaning sheet, a cleaning film, etc., and can be installed on the traveling device 120 by means such as sleeving, bonding, snap connection, magnetic attraction connection, etc., which is convenient for disassembly and replacement, and this embodiment does not limit this.

[0074] The first type of cleaning member 131 at least includes a first part 1311 and a second part 1312. It can be that the first type of cleaning member 131 only includes the first part 1311 and the second part 1312, or the first type of cleaning member 131 may further include other parts on the basis of including the first part 1311 and the second part 1312, such as a third part, a fourth part, etc., and this embodiment does not limit this.

[0075] Among them, the parts of the first type of cleaning member 131 are different, including the difference between the first part 1311 and the second part 1312. The difference between the parts can specifically be different in material, structure, or performance. For example, the material of the part of the first type of cleaning member 131 can be a blended material such as nylon and polyester, pure polyester material, cotton and linen material, bamboo fiber material, polylactic acid fiber material, non-woven fabric material, etc., or there are also nylon fibers and sea-island filaments, etc., and this embodiment does not limit this. During actual manufacturing, multiple parts (such as the first part 1311 and the second part 1312) that form the first type of cleaning member 131 can be integrated into one body through processes such as knitting, compounding, sewing, etc., that is, made into the entire cleaning member. There can be various different positional relationships or connection relationships between the first part 1311 and the second part 1312. For example, in the thickness direction of the first type of cleaning member 131, the first part 1311 and the second part 1312 are stacked and adhesively connected; or, in the circumferential direction of the first type of cleaning member 131, the first part 1311 and the second part 1312 are spliced and sewn together. This is only exemplary and not restrictive, and this embodiment does not limit this.

[0076] Among them, at least one structure of the second part 1312 is in a hollowed-out shape, that is, the second part 1312 can have various structures, and at least one of the various structures is in a hollowed-out shape. The defined hollowed-out shape, such as Figure 1 and Figure 2As shown, the second part 1312 can be hollow, with a large hollow area 13121 in the middle to form a hollow shape; for example, Figure 3 As shown, the hollow areas 13121 of the second part 1312 can also be continuously distributed in space to form a unified structural unit such as a grid-like, honeycomb-like or porous array-like state, that is, a hollow state, which is achieved by an integrated weaving, stamping or etching process, and the aperture or gap size of the hollow areas 13121 is uniformly controllable. In addition, the hollow shape of the second part 1312 can also be other structural forms, and this embodiment does not limit this either.

[0077] Or, as Figures 4 - 8 shown, the setting of the second part 1312 exposes the first part 1311. That is, when the second part 1312 and the first part 1311 are combined, the second part 1312 does not block the first part 1311, or the second part 1312 only partially blocks the first part 1311, so that the first part 1311 is exposed. From other aspects, the projection of the second part 1312 on the surface to be cleaned does not coincide with the projection of the first part 1311 on the surface to be cleaned, or, although the projection of the second part 1312 on the surface to be cleaned coincides with the projection of the first part 1311 on the surface to be cleaned, the projected area of the second part 1312 on the surface to be cleaned is not greater than the projected area of the first part 1311 on the surface to be cleaned.

[0078] For example, as Figure 4 and Figure 5 shown, in the thickness direction of the first type of cleaning part 131, the first part 1311 and the second part 1312 are stacked. The first part 1311 is disk-shaped or ring-shaped, and the second part 1312 is arc-shaped and arranged along the circumference of the first part 1311, occupying a local area of the first part 1311 to expose the first part 1311.

[0079] For example, as Figures 6 - 8 shown, in the thickness direction of the first type of cleaning part 131, the first part 1311 and the second part 1312 are stacked. The first part 1311 is square-shaped, and the second part 1312 is strip-shaped and arranged along the side of the first part 1311, occupying a local area of the first part 1311 to expose the first part 1311.

[0080] Due to the diverse types of stains on the surface to be cleaned in practical applications, different parts of the first type of cleaning member 131 can have different cleaning characteristics. For example, the first part 1311 of the first type of cleaning member 131 can efficiently adsorb floating dust, and the second part 1312 can effectively dissolve and remove oil stains. Moreover, the hollow structure or setting of the second part 1312 exposes the first part 1311, which can significantly increase the gas-liquid exchange area between the cleaning member and the surface to be cleaned, improve the air permeability and adsorption capacity, and can absorb excess water faster when dealing with water stains, reducing water mark residues. The cleaning characteristics described above are only exemplary and not restrictive, and can also include other cleaning characteristics such as dirt collection and stubborn stain wiping.

[0081] That is to say, in this embodiment, the window cleaning machine forms a synergistic cleaning effect by setting the first type of cleaning member 131 as a composite structure including at least the first part 1311 and the second part 1312, and the second part 1312 is designed as a hollow structure or set to expose the first part 1311, using the material characteristics and structural features of different parts to achieve the cleaning of the surface to be cleaned under different working conditions and improve the cleaning effect. In addition, the hollow design of the second part 1312 can improve air permeability, enabling gas to pass through quickly, and then enabling better air intake in the adsorption space, so that the walking device 120 can be stably adsorbed on the surface to be cleaned, improving the safety of equipment operation. In some embodiments, at least one structure of the first part 1311 is hollow, and the hollow structure form can be the same as or different from that of the second part 1312. This embodiment does not limit this.

[0082] In some embodiments, referring to Figures 1 - 11 , when the second part 1312 is hollow, the structure of the second part 1312 includes:

[0083] The second part 1312 is an integral hollow shape, or the second part 1312 is an intermittent hollow shape, or the second part 1312 is a closed hollow shape, or the second part 1312 is a discontinuous hollow shape.

[0084] In this embodiment, the second part 1312 can be an integral hollow shape. For example, as Figure 3 shown, that is, the second part 1312 is an integral structure, and hollow areas 1312 such as grid-like, honeycomb-like or porous array-like are formed thereon, which are continuously distributed in space.

[0085] Or, the second part 1312 is an intermittent hollow shape, that is, the second part 1312 is a separately designed split structure, and hollow areas 13121 are formed at intervals. For example, as Figure 4 and Figure 7As shown, the second part 1312 has a plurality of strip-shaped parts, which are arranged at intervals in sequence, and the interval area between any two adjacent strip-shaped parts corresponds to the hollow area 13121.

[0086] Alternatively, the second part 1312 is in a closed hollow shape, that is, the second part 1312 is an integrally designed overall structure and is hollowed out to form the hollow area 13121. For example, as Figure 5 shown, the second part 1312 is circular, and the enclosed middle area corresponds to the hollow area 13121: as Figure 6 shown, the second part 1312 is square, and the enclosed middle area corresponds to the first hollow area 13121. Another example, as Figure 9 shown, in addition to the enclosed middle area, it is also provided with a plurality of circular hole areas, and the plurality of circular hole areas also correspond to the hollow area 13121.

[0087] Alternatively, the second part 1312 is in a disconnected hollow shape, that is, the second part 1312 is a locally structured design with a disconnection, which only occupies a partial area of the first part 1311 and forms a hollow area 13121 at its outer position. For example, as Figure 10 shown, the second part 1312 is arc-shaped, and the outer area outside its range corresponds to the hollow area 13121. Another example, as Figure 11 shown, the second part 1312 is a strip-shaped part, which is arranged along one side edge of the first part 1311, and the outer area outside its range corresponds to the hollow area 13121.

[0088] Alternatively, the second part 1312 is arranged to expose the first part 1311, that is, the hollowing of the second part 1312 enables the first part 1311 to be exposed, and there are areas with a dislocation setting between the two.

[0089] For the above-mentioned second part 1312 being in an integral or spaced or closed or disconnected hollow shape, the structure of the first part 1311 remains unchanged, and a structure such as a disc shape can be adopted to achieve a composite setting with the second part 1312. Alternatively, a structure such as a square shape can be adopted to achieve a composite setting with the second part 1312.

[0090] In some embodiments, at least one structure of the first part 1311 is hollowed out. That is, the first part 1311 can have multiple structures, and at least one of the multiple structures is hollowed out. In this embodiment, the hollowed-out structure of the first part 1311 can be the same as that of the second part 1312. For example, the first part 1311 can be hollowly arranged with a large second hollow area 13111 in the middle to form a hollowed-out shape; alternatively, the second hollow areas 13111 of the first part 1311 are continuously distributed in space to form a unified structural unit such as a grid shape, a honeycomb shape, or a porous array shape, that is, a hollow state, which is achieved through an integrated weaving, stamping, or etching process, and the pore diameter or gap size of the second hollow areas 13111 is uniformly controllable. In addition, the hollowed-out shape of the first part 1311 can also be other structural forms, and this embodiment does not limit this either.

[0091] The hollow design of the first part 1311 can improve air permeability, enabling gas to pass through quickly, and thus enabling the adsorption space 111 to intake air better, so that the body 110 can stably adsorb on the surface to be cleaned, improving the safety of equipment operation.

[0092] In some embodiments, the liquid adsorption performance of the first part 1311 is better than that of the second part 1312 for the first part 1311 to transport liquid to the second part 1312.

[0093] In this embodiment, the first part 1311 can adopt highly water-absorbent materials such as blended materials of nylon and polyester, pure polyester materials, cotton and linen materials, bamboo fiber materials, polylactic acid fiber materials, non-woven materials, etc., with excellent liquid adsorption capabilities. The second part 1312, on the other hand, adopts materials with relatively low adsorption properties such as nylon fibers and sea-island filaments, and its liquid absorption capacity is relatively lower than that of the first part 1311.

[0094] When the window cleaning machine is performing a cleaning operation, the first part 1311 will come into contact with the liquid (such as cleaning liquid, cleaning water) on the surface to be cleaned and quickly adsorb a large amount of liquid. Since the first part 1311 and the second part 1312 are closely connected and there is a difference in adsorption performance, the liquid adsorbed by the first part 1311 will penetrate and diffuse into the second part 1312. Moreover, during the cleaning process, the liquid transportation between the first part 1311 and the second part 1312 is a dynamic equilibrium process. As the liquid adsorbed by the first part 1311 decreases and the liquid in the second part 1312 diffuses, the cleaning liquid can continuously and effectively act on the surface to be cleaned, keeping the humidity of the second part 1312 within a preset humidity range all the time, achieving continuous optimization of the cleaning process.

[0095] In this embodiment, the first type of cleaning member 131 realizes efficient liquid adsorption, uniform diffusion, and continuous replenishment of liquid by selecting materials with significantly different liquid adsorption properties as the first part 1311 and the second part 1312, thereby helping to ensure a good cleaning effect.

[0096] In some embodiments, the liquid-locking property of the second part 1312 is better than that of the first part 1311 for the second part 1312 to adsorb liquid from the surface to be cleaned.

[0097] In this embodiment, the second part 1312 can be made of materials such as nylon fiber and sea-island silk, which have excellent liquid-locking ability and strong compatibility with liquids on their surfaces. The strong adsorption and locking of liquids are achieved through intermolecular forces, that is, it is not easy for the second part 1312 to discharge the absorbed water again, and a greater extrusion force is required to discharge the absorbed water compared with the first part 1311. The first part 1311 can be made of materials such as a blended material of nylon and polyester, pure polyester material, cotton and linen material, bamboo fiber material, polylactic acid fiber material, non-woven fabric material, etc., and its liquid-locking capacity is relatively lower than that of the second part 1312.

[0098] When the window cleaning machine contacts the surface to be cleaned, the second part 1312 will come into contact with liquid stains (such as water stains and oil stains). During the wiping process, it uses its strong locking property to quickly adsorb and fix stain molecules, and can take away a large amount of liquid stains, making it not easy to leave water marks during the cleaning of the surface to be cleaned. During the cleaning process, the first part 1311 of the cleaning member has strong liquid absorption ability, and the second part 1312 has strong liquid-locking ability. After the two are combined, the second part 1312 contacts the surface to be cleaned. During the wiping process, due to its strong liquid-locking ability, it can take away a large amount of water stains, making it not easy to leave water marks during the cleaning of the glass. However, its water absorption ability is poor, and it will become dry after the water volatilizes during the wiping process, affecting the cleaning effect. The first part 1311 combined with the second part 1312, due to its strong liquid absorption ability, the carried water will continuously replenish the second part 1312, realizing a complementary effect, that is, the first part 1311 and the second part 1312, through the gradient cooperation of the water-locking ability, enable the window cleaning machine as a whole to effectively clean the water stains on the surface to be cleaned while also realizing the dynamic balance of the cleaning humidity.

[0099] That is, the first part 1311 and the second part 1312 of the first type of cleaning member 131 form a material property gradient based on liquid management requirements. The second part 1312 (liquid-locking layer): adopts a composite material of sea-island fiber and polyamide fiber. The sea-island fiber forms ultrafine fiber clusters with a diameter of 0.1 μm - 0.5 μm through the "sea-island spinning" process. The specific surface area of the single fiber is increased by 10 - 20 times compared with conventional fibers. The amide group (-CONH-) in the polyamide molecular chain cooperates with liquid molecules to form hydrogen bonding, so that the liquid locking amount per unit area reaches 150 - 200 mg / cm2. The surface energy of this material highly matches that of oil stains and water stains, and strong adsorption and physical anchoring of stain molecules are realized through van der Waals forces. The first part 1311 (liquid storage layer): selects a blended fabric of polyamide / polyester or bamboo fiber non-woven fabric. The former reduces the liquid surface tension through the oil-repellent characteristics of the polymer molecular chain, and the latter utilizes the porous structure of natural cellulose (porosity 40% - 60%) to achieve rapid liquid absorption, and its liquid absorption rate can reach 500 μL / . When the window cleaning machine approaches the surface to be cleaned, the ultrafine fiber clusters of the second part 1312 first contact the stain liquid surface, and the capillary negative pressure (about 5 kPa - 10 kPa) formed by its dense pores quickly sucks the liquid into the fiber gaps. At the same time, the amide group and the polar group of the oil molecule form molecular chain entanglement, realizing double locking of "physical capture + chemical adsorption". The high liquid-absorbing material of the first part 1311 serves as a "liquid storage bin" and continuously supplies water to the second part 1312 through cross-layer capillary transfer. Specifically, when the second part 1312 consumes water during wiping (such as water volatilization or participation in stain emulsification during the cleaning process), the liquid osmotic pressure in its fiber gaps decreases, driving the water stored in the first part 1311 to diffuse to the second part 1312 (liquid-locking layer) through the interlayer contact interface, realizing self-water replenishment.

[0100] In some embodiments, the air permeability of the first part 1311 is greater than that of the second part 1312, and the area ratio of the first part 1311 to the second part 1312 is used to enable the window cleaning machine to adsorb on the surface to be cleaned.

[0101] In this embodiment, as Figure 1 shown, the first part 1311 can be a high air permeability layer, and a mesh structure material can be adopted, such as polyester warp-knitted mesh fabric, hollow non-woven fabric, etc. Its air permeability is significantly higher than that of traditional cleaning cloths, allowing air to pass through quickly; the second part 1312 is a low air permeability layer, and a dense fiber material can be selected, such as pure cotton plain cloth, etc. Its structure is dense to limit air circulation, and only allows air to pass through the hollow part, improving the negative pressure holding ability. At the same time, the dense fiber material is more likely to improve the water-locking ability of the second part 1312.

[0102] Moreover, the area ratio of the first part 1311 to the second part 1312 is limited so that at this area ratio, the window cleaning machine can adsorb on the surface to be cleaned. For example, asFigure 1 As shown, the area ratio of the second part 1312 to the first part 1311 can be set within the range of 10% to 50%. Specifically, the area ratio of the second part 1312 to the first part 1311 can be 10%, 30%, or 50%. Among them, the area of the first part 1311 is selected within the range of 120 cm 2 to 220 cm 2 . Taking the area of the first part 1311 as 200 cm 2 as an example, the area of the second part 1312 can be 20 cm 2 , 60 cm 2 , 100 cm 2 .

[0103] That is to say, through the differential design of air permeability and the regulation of the area ratio between the first part 1311 and the second part 1312 of the first type of cleaning part 131, when the negative pressure device works, the window cleaning machine is adsorbed on the surface to be cleaned.

[0104] In this embodiment, as Figure 2 shown, the first part 1311 can be a high air permeability layer, and mesh structure materials such as polyester warp knitted fabric and hollow non-woven fabric can be used. Its air permeability is significantly higher than that of traditional cleaning cloth, allowing air flow to pass through quickly; the second part 1312 is a low air permeability layer, and dense fiber materials such as pure cotton plain cloth can be selected. Its structure is dense to limit air circulation, and air flow only passes through the hollow part, improving the negative pressure holding ability.

[0105] Moreover, the area ratio of the first part 1311 to the second part 1312 is limited so that at this area ratio, the window cleaning machine can be adsorbed on the surface to be cleaned. For example, as Figure 1 shown, the area ratio of the second part 1312 to the first part 1311 can be set within the range of 40% to 100%. Specifically, the area ratio of the second part 1312 to the first part 1311 can be 40%, 70%, or 100%. Among them, the area of the first part 1311 is selected within the range of 530 cm 2 to 630 cm 2 . Taking the area of the first part 1311 as 600 cm 2 as an example, the area of the second part 1312 can be 240 cm 2 , 420 cm 2 , 600 cm 2 .

[0106] That is to say, through the differential design of air permeability and the regulation of the area ratio between the first part 1311 and the second part 1312 of the first type of cleaning part 131, when the negative pressure device works, the window cleaning machine is adsorbed on the surface to be cleaned.

[0107] In some embodiments, referring to Figure 12 and Figure 13 , the pile length of the first part 1311 is greater than that of the second part 1312. In this embodiment, the first part 1311 has long piles, and the second part 1312 has short piles. There is a large amount of space between the piles, which can effectively collect stains during the cleaning process and play a role in stain collection. Moreover, after the stains on the surface to be cleaned are softened by the cleaning liquid, they are effectively wiped by the piles, which helps to ensure the cleaning effect. It should be noted that the pile length of the first part 1311 being greater than that of the second part 1312 means that the overall length of the piles of the first part 1311 is greater than that of the second part 1312, and it is not required that the length of each pile of the first part 1311 is greater than that of the second part 1312.

[0108] In some embodiments, the pile hardness of the first part 1311 is greater than that of the second part 1312. The piles with greater hardness can clean relatively stubborn stains on the surface to be cleaned, and the piles with smaller hardness can perform more refined cleaning, which helps to ensure the cleaning effect.

[0109] In some embodiments, the first part 1311 and the second part 1312 are spliced; or,

[0110] the first part 1311 and the second part 1312 are laminated; or,

[0111] the first part 1311 and the second part 1312 are stacked.

[0112] In this embodiment, the first part 1311 and the second part 1312 of the first type of cleaning member 131 can achieve functional cooperation through three different spatial combination methods, namely splicing, lamination, and stacking.

[0113] Among them, as Figure 14 and Figure 15 shown, it can be that the first part 1311 and the second part 1312 are spliced to form a planar partition composite structure. Specifically, the first part 1311 and the second part 1312 are spliced in a geometric pattern within the same plane of the cleaning member, such as checkerboard, circular stripes, or irregular area distribution, and the edges of adjacent areas are connected into one body through weaving, composite, sewing, etc. to form an uninterrupted cleaning surface. For example, in a circular cleaning member, the central area is the first part 1311, and the outer peripheral circular area is the second part 1312; in a rectangular cleaning member, multiple first parts 1311 and second parts 1312 are respectively provided, and the multiple first parts 1311 and second parts 1312 are alternately distributed in horizontal stripes.

[0114] Alternatively, the first part 1311 and the second part 1312 can be laminated to form an integrated composite structure. Specifically, the first part 1311 and the second part 1312 can be combined into a single entity under the action of pressure and temperature through a hot melt adhesive film or a solvent-based adhesive (in addition, there can be other forms), and the two parts are interleaved and combined.

[0115] As Figures 4 - 11 shown, it can also be that the first part 1311 and the second part 1312 are stacked to form a three-dimensional layered composite structure. Specifically, the first part 1311 and the second part 1312 are attached to each other and stacked up and down in a detachable manner, and are connected between layers by Velcro, magnetic snaps or elastic buckles, etc.

[0116] That is to say, for the cleaning part of this embodiment, its first part 1311 and second part 1312 can be spliced from a plane to a three-dimensional stack to meet different cleaning requirements.

[0117] In some embodiments, referring to Figure 1 and Figure 5 , the second part 1312 is disposed on the first part 1311 and is disposed on the periphery of the first part 1311.

[0118] For example, the first part 1311 is a disc-shaped structure, and the second part 1312 is an annular structure. The diameters of the two are the same. The second part 1312 is combined with the first part 1311 from one side of the first part 1311 (specifically, the side facing the surface to be cleaned) to be disposed on the first part 1311, and the second part 1312 is correspondingly located on the periphery of the first part 1311.

[0119] Among them, when the first type of cleaning part 131 is installed on the traveling device 120, the first part 1311 (fully covered area) covers the traveling device 120, and the shape is circular. A material with high adsorption and high air permeability can be used; the second part 1312 (peripheral area) is arranged in a ring or arc shape along the edge of the first part 1311, and a wear-resistant material is used, and is combined with the first part 1311 by means of weaving, sewing, etc. to form a functional partition of central adsorption and peripheral cleaning. In actual application, when the first type of cleaning part 131 cleans the surface to be cleaned, the central part and the peripheral part jointly clean the surface to be cleaned. Finally, the peripheral part performs finishing cleaning on the cleaning area, and the water stains left by the first part 1311 will be cleaned up by the second part 1312 of the peripheral part to keep the moisture within the range surrounded by the second part 1312 to improve the cleaning effect.

[0120] When the window cleaning machine is placed on the surface to be cleaned, the negative pressure device evacuates the negative pressure in the adsorption space of the traveling device 120. Correspondingly, the outside air passes through the hollow structure of the second part 1312 and the first part 1311, so that the traveling device 120 is adsorbed on the surface to be cleaned. When the window cleaning machine works, the traveling device 120 runs, and the first type of cleaning member 131 moves with the traveling device 120, contacts the surface to be cleaned through its second part 1312 and performs friction to clean the surface to be cleaned. Moreover, a large amount of liquid (such as cleaning liquid, cleaning water) will be adsorbed by its first part 1311 to penetrate and diffuse into the second part 1312, continuously replenishing water for the second part 1312 to ensure the cleaning effect.

[0121] In some embodiments, referring to Figure 18 and Figure 19 , the second part 1312 is disposed on the first part 1311 and is arranged on the periphery of the first part 1311.

[0122] For example, the first part 1311 is a square or square frame structure, the second part 1312 is a square frame structure, and their sizes are the same. The second part 1312 is compositely arranged with the first part 1311 from one side of the first part 1311 (specifically, the side facing the surface to be cleaned) to be disposed on the first part 1311, and the first part 1311 is correspondingly located on the periphery of the first part 1311.

[0123] Among them, when the first type of cleaning member 131 is installed on the body 110, as Figure 17 shown, the first part 1311 (fully covered area) covers the adsorption space 111, with a square shape, and can be made of a material with high adsorption and high air permeability. Or, as Figure 2 shown, the first part 1311 surrounds the adsorption space 111, with a square frame shape and a hollow middle; the second part 1312 (outer periphery area) is arranged in a square frame shape along the edge of the first part 1311, made of wear-resistant material, and is compositely arranged with the first part 1311 through knitting, sewing, etc., forming a functional partition of central adsorption and peripheral cleaning.

[0124] In some embodiments, referring to Figure 16 , the cleaning device 130 further includes a second type of cleaning member 132, and the structure and / or performance of the second type of cleaning member 132 are different from those of the first type of cleaning member 131;

[0125] The first type of cleaning member 131 and the second type of cleaning member 132 are used to clean the surface to be cleaned respectively.

[0126] In this embodiment, the cleaning device 130 adopts a cooperative design of two types of cleaning members. Through the structural performance differences between the first type of cleaning member 131 and the second type of cleaning member 132, a precise cleaning system covering multiple stain types is constructed, such as:

[0127]

[0128] That is to say, it is possible to process liquid stains, such as water stains, oil stains, etc., through the first type of cleaning member 131. Solid stains, such as stubborn stains like cement spots and shellac, are processed through the second type of cleaning member 132. The dual-category cleaning member cooperation system redefines the cleaning paradigm of the window cleaning machine through technology integration and innovation, providing a highly forward-looking technical path for the development of high-end cleaning equipment. Among them, the second type of cleaning member 132 can include only a part, or like the first type of cleaning member 131, be composed of multiple parts, and this embodiment does not limit this.

[0129] In some embodiments, as Figure 1 shown, the first type of cleaning member 131 and the second type of cleaning member 132 are respectively installed on the traveling device 120 so that the window cleaning machine has different cleaning effects. In this embodiment, through the alternate installation of the first type of cleaning member 131 and the second type of cleaning member 132, precise adaptation to different types of stains is achieved. Standardized installation interfaces are provided on the surface of the traveling device 120, and the two types of cleaning members are designed differently in terms of material, structure, and function, and can be quickly switched to meet diverse cleaning requirements.

[0130] For example, when it is detected that the proportion of liquid stains is relatively large, the first type of cleaning member 131 is installed, and the traveling device 120 rotates at a low speed of 30 rpm - 60 rpm, and the negative pressure device maintains an adsorption force of 2 kPa - 3 kPa. Among them, the long fluff of the first type of cleaning member 131 quickly adsorbs liquid through capillary action, and the hollowed-out diversion layer synchronously introduces a cleaning agent (such as an aqueous solution containing a surfactant) to achieve "adsorption - dissolution" cooperation. For example, when cleaning kitchen glass, the sea-island silk fiber can quickly adsorb a large amount of cooking oil stains, and at the same time, the cleaning agent penetrates the oil film to reduce the interfacial tension.

[0131] For solid stains or mixed stains, switch to the second type of cleaning member 132, the traveling device 120 speeds up to 60 rpm - 90 rpm, and the negative pressure is increased to 3 kPa - 5 kPa to enhance the adsorption stability. The brush structure of the second type of cleaning member 132 contacts the surface to be cleaned to quickly wipe off stubborn stains. The above is only exemplary and not restrictive.

[0132] In addition to the above embodiments, in other embodiments, the first type of cleaning member 131 and the second type of cleaning member 132 can also be installed on the traveling device 120 at the same time.

[0133] In some embodiments such as Figure 2As shown, the first type of cleaning part 131 and the second type of cleaning part 132 are respectively installed on the body 110 so that the window cleaning machine has different cleaning effects. In this embodiment, through the alternating installation of the first type of cleaning part 131 and the second type of cleaning part 132, accurate adaptation to different types of stains is achieved. A standardized installation interface is provided on the surface of the body 110, and the two types of cleaning parts are designed differently in terms of material, structure and function, and can be quickly switched to meet diverse cleaning needs.

[0134] For example, when it is detected that the proportion of liquid stains is relatively large, the first type of cleaning part 131 is installed, the traveling device 120 moves slowly, and the negative pressure device maintains an adsorption force of 5 kPa - 6 kPa. Among them, the long fluff of the first type of cleaning part 131 quickly adsorbs liquid through capillary action, and the hollow diversion layer synchronously introduces a cleaning agent (such as an aqueous solution containing surfactant) to achieve the synergy of "adsorption - dissolution". For example, when cleaning kitchen glass, the sea island silk fiber can quickly adsorb a large amount of cooking oil stains, and at the same time, the cleaning agent penetrates the oil film to reduce the interfacial tension.

[0135] For solid stains or mixed stains, switch to the second type of cleaning part 132, the traveling device 120 moves at high speed, and the negative pressure is increased to 8 kPa - 10 kPa to enhance the adsorption stability. The brush structure of the second type of cleaning part 132 contacts the surface to be cleaned to quickly erase stubborn stains. The above is only exemplary and not restrictive.

[0136] In some embodiments, referring to Figure 1 and Figure 16 , the number of traveling devices 120 is set to two, and each traveling device 120 is provided with an adsorption space;

[0137] One of the first type of cleaning part 131 and the second type of cleaning part 132 is installed on each traveling device 120.

[0138] In this embodiment, the number of traveling devices 120 is set to two, and the two traveling devices 120 are symmetric with respect to the central axis of the body 110. When the window cleaning machine is placed on the surface to be cleaned, the two traveling devices 120 are respectively in contact with the surface to be cleaned, and at least one of the two traveling devices 120 is used for movement. That is, among the two traveling devices 120, one of the traveling devices 120 can be used for movement, or both traveling devices 120 can be used for movement. In an actual scenario, by controlling the movement states of the two traveling devices 120, the window cleaning machine can be made to walk in a twisting manner, turn or walk straight.

[0139] An adsorption space is formed inside each traveling device 120, and two adsorption spaces are correspondingly formed inside the two traveling devices 120. The negative pressure device is connected to the adsorption space formed inside the traveling device 120 to extract the air in at least one adsorption space. Optionally, the air extraction of the two adsorption spaces is independently controlled. For example, the two adsorption spaces are connected to the negative pressure device through a communication pipeline, and an air path switching structure (such as a control valve, etc.) is provided on the communication pipeline. The air path can be switched through the air path switching structure, so that the negative pressure device is connected to one of the two adsorption spaces, or to the other of the two adsorption spaces, or to both of the two adsorption spaces. In this way, when the negative pressure device is working, it can extract the air in one of the two adsorption spaces, or extract the air in the other of the two adsorption spaces, or extract the air in both of the two adsorption spaces at the same time. This is only exemplary and not restrictive. Or, the air extraction of the two adsorption spaces is uniformly controlled. The two adsorption spaces are connected to the negative pressure device through a communication pipeline. When the negative pressure device is working, it extracts the air in both of the two adsorption spaces at the same time.

[0140] For the two traveling devices 120, any one of the first type of cleaning member 131 and the second type of cleaning member 132 can be installed on each traveling device 120. For example, as Figure 1 shown, both of the two traveling devices 120 are installed with the first type of cleaning member 131, or both of the two traveling devices 120 are installed with the second type of cleaning member 132, as Figure 9 shown, or one traveling device 120 is installed with the first type of cleaning member 131, and the other traveling device 120 is installed with the second type of cleaning member 132, which can be specifically selected according to actual needs, and this embodiment does not limit this. This embodiment of the solution endows the window cleaning machine with higher environmental adaptability and operation flexibility, and is suitable for the high-efficiency cleaning needs in multiple scenarios such as home, commercial, and industrial, leading the technical direction of intelligent cleaning equipment towards multi-modal collaborative operation.

[0141] In addition to the above embodiments, in other embodiments, the first type of cleaning member 131 and the second type of cleaning member 132 can also be installed on the body 110 at the same time.

[0142] The above are only partial or preferred embodiments of the present invention. Whether in words or in drawings, they cannot limit the scope of protection of the present invention. All equivalent structural transformations made under the overall concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields are included in the scope of protection of the present invention.

Claims

1. A window cleaning machine, which is used to adsorb on a surface to be cleaned and clean the surface to be cleaned, and is characterized in that, The window cleaning machine includes a body, a traveling device, a negative pressure device, and a cleaning device; The traveling device is disposed on the body, and an adsorption space is provided inside the traveling device. The negative pressure device is used to evacuate the adsorption space to a negative pressure so that the traveling device is adsorbed on the surface to be cleaned; The cleaning device is used to be installed on the traveling device to clean the surface to be cleaned. The cleaning device includes a first type of cleaning member, and the first type of cleaning member includes at least a first part and a second part; At least one structure of the second part is in a hollow shape, or the arrangement of the second part exposes the first part.

2. A window cleaning machine, which is used to adsorb on a surface to be cleaned and clean the surface to be cleaned, is characterized in that, The window cleaning machine includes a body, a traveling device, a negative pressure device, and a cleaning device; An adsorption space is provided on one side of the body facing the surface to be cleaned. The negative pressure device is used to evacuate the adsorption space to a negative pressure so that the body is adsorbed on the surface to be cleaned; The traveling device is disposed on the body and beside the adsorption space; The cleaning device is used to be installed on the body to clean the surface to be cleaned. The cleaning device includes a first type of cleaning member, and the first type of cleaning member includes at least a first part and a second part; At least one structure of the second part is in a hollow shape, or the arrangement of the second part exposes the first part.

3. The window cleaning machine according to claim 1 or 2, characterized in that, When the second part is in a hollow shape, the structure of the second part includes: The second part is in an integral hollow shape, or the second part is in an intermittent hollow shape, or the second part is in a closed hollow shape, or the second part is in a disconnected hollow shape.

4. The window cleaning machine according to claim 1 or 2, characterized in that, The liquid adsorption performance of the first part is better than that of the second part for the first part to transport liquid to the second part.

5. The window cleaning machine according to claim 1 or 2, characterized in that, The liquid locking performance of the second part is better than that of the first part for the second part to adsorb liquid from the surface to be cleaned.

6. The window cleaning machine according to claim 1 or 2, characterized in that The air permeability of the first part is greater than that of the second part, and the area ratio of the first part to the second part is used to enable the window cleaning machine to be adsorbed on the surface to be cleaned.

7. The window cleaning machine according to claim 1 or 2, characterized in that, The villus length of the first part is greater than that of the second part.

8. The window cleaning machine according to claim 1 or 2, characterized in that, The first part and the second part are spliced; or The first part and the second part are laminated; or The first part and the second part are stacked.

9. The window cleaning machine according to claim 1 or 2, characterized in that, The second part is disposed on the first part and around the first part.

10. The window cleaning machine according to claim 1 or 2, characterized in that, The cleaning device further includes a second type of cleaning member, and the structure and / or performance of the second type of cleaning member are different from those of the first type of cleaning member; The first type of cleaning member and the second type of cleaning member are used to clean the surface to be cleaned respectively.

11. The window cleaning machine according to claim 10, characterized in that, The first type of cleaning member and the second type of cleaning member are respectively installed on the traveling device so that the window cleaning machine has different cleaning effects.

12. The window cleaning machine according to claim 10, characterized in that, The number of the traveling devices is two, and an adsorption space is provided in each traveling device; One of the first type of cleaning member and the second type of cleaning member is installed on each traveling device.

13. The window cleaning machine according to claim 10, characterized in that, At least one structure of the first part is in a hollow shape.

14. The window cleaning machine according to claim 10, characterized in that, The first type of cleaning member and the second type of cleaning member are respectively installed on the machine body so that the window cleaning machine has different cleaning effects.

15. A cleaning device for a window cleaning machine, characterized in that, The cleaning device includes a first type of cleaning member, and the first type of cleaning member at least includes a first part and a second part; At least one structure of the second part is in a hollowed-out shape, or the setting of the second part exposes the first part.

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