A window cleaning machine

Abstract

The present invention discloses a window cleaning machine, comprising a main body, the main body comprising a first box and a second box, the bottom surfaces of the first box and the second box are both provided with a negative pressure adsorption module, the negative pressure adsorption module is provided with a breathable wiping cloth, the negative pressure adsorption module is adsorbed on a surface to be cleaned through the wiping cloth, the first box is connected to the second box through a first driving device, the first driving device drives the first box and the second box to approach or separate, and then drives the wiping cloth to clean the surface to be cleaned, a cleaning liquid spraying device is provided on one side of the forward direction of the main body, and the cleaning liquid spraying device is used to spray the cleaning liquid onto the surface to be cleaned. The window cleaning machine realizes walking by driving the first box and the second box to move alternately, and drives the wiping cloth on the corresponding box to clean while moving, and has a simple and stable structure and a good cleaning effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning devices, and more specifically, relates to a window cleaning machine. Background Art

[0002] CN 106235952 A discloses a novel intelligent glass-wiping robot and a walking method thereof, belonging to the technical field of glass-wiping robots. The glass-wiping robot comprises a front shell, a bottom shell, and a centrifugal air extraction device, wherein the centrifugal air extraction device is arranged between the front shell and the bottom shell, and further comprises two sets of cleaning head devices, each set of cleaning head devices comprises a driving motor, a worm gear driving device, a helical gear, and a cleaning head, wherein the two ends of the worm gear driving device are respectively connected to the output end of the driving motor and the helical gear, the helical gear is connected to the cleaning head, and one of the two helical gears of the two cleaning head devices is left-handed and the other is right-handed.

[0003] The problem with the above-mentioned glass cleaning robot is that it can only move forward or backward in a straight line in a figure-8 manner. First, one set of cleaning head devices is kept stationary, and the driving motor of the other cleaning head device starts to rotate. After rotating 180 degrees, the second rotation begins. The first stationary cleaning head device rotates 180 degrees in the opposite direction of the first moving cleaning head device, and then repeats the first and second rotation processes. This way of moving is more complicated in structure, and some places cannot be moved to the right place during the moving process, and cannot be cleaned in place.

[0004] Therefore, the technical problem to be solved by the present application is: how to achieve walking and cleaning in place more simply. Summary of the invention

[0005] The main purpose of the present invention is to provide a window cleaning machine, which realizes walking by driving a first box and a second box to move alternately, and drives the cloth on the corresponding box to clean while moving, has a simple and stable structure, and has a good cleaning effect.

[0006] According to a first aspect of the present invention, a window cleaning machine is provided, comprising a main body, the main body comprising a first box body and a second box body, the bottom surfaces of the first box body and the second box body are both provided with a negative pressure adsorption module, the negative pressure adsorption module is provided with a breathable wiping cloth, the negative pressure adsorption module is adsorbed on the surface to be wiped through the wiping cloth, the first box body is connected to the second box body through a first driving device, the first driving device drives the first box body and the second box body to approach or separate, and then drives the wiping cloth to clean the surface to be wiped, and a cleaning liquid spraying device is provided on one side of the forward direction of the main body, and the cleaning liquid spraying device is used to spray the cleaning liquid onto the surface to be wiped.

[0007] In a specific embodiment of the present invention, the first driving device includes a plurality of first screw rods and a plurality of first motors fixed to a first box body, the first screw rods are provided with first screw rod nuts, the first screw rod nuts are fixed to a second box body, and the first motor drives the first screw rods to operate through a transmission mechanism;

[0008] When the first box is fixed by negative pressure adsorption, the first screw drives the first screw nut to move linearly, so that the second box approaches or separates from the first box, and at the same time, the wiping cloth on the second box cleans the surface to be wiped;

[0009] When the second box is fixed by negative pressure adsorption, the first screw moves linearly on the first screw nut, so that the first box approaches or separates from the second box, and at the same time, the wiping cloth on the first box cleans the surface to be wiped.

[0010] In a specific embodiment of the present invention, the negative pressure adsorption module includes a plurality of negative pressure devices, and the negative pressure devices include a plurality of negative pressure chambers staggeredly distributed on the bottom surfaces of the corresponding first box body and the second box body, and the negative pressure chamber is connected to a negative pressure fan, and the wiping cloth is wrapped on the negative pressure chamber. When the negative pressure fan is operated, the negative pressure chamber generates negative pressure and is adsorbed on the surface to be wiped through the wiping cloth.

[0011] In a specific embodiment of the present invention, the negative pressure adsorption module includes a plurality of vacuum adsorption devices, and the vacuum adsorption devices include suction cup assemblies and vacuum pumps that are staggeredly distributed on the first box body and the second box body, and the suction cup assemblies are connected to the vacuum pump through a pipeline.

[0012] In a specific embodiment of the present invention, a solenoid valve is provided on the pipeline, and the solenoid valve controls the conduction of the pipeline and thus controls the suction cup assembly to be adsorbed on the surface to be scrubbed.

[0013] In a specific embodiment of the present invention, the suction cup assembly includes a suction cup, a connector for connecting a pipe is fixed on the suction cup, a push-pull electromagnet is provided on the connector, and the push-pull electromagnet pushes the suction cup on the connector to stick to the glass.

[0014] In a specific embodiment of the present invention, the cleaning liquid spraying device includes at least one nozzle and a liquid supply module for supplying liquid to the nozzle. The liquid supply module is a water tank disposed in the body or a pipe connected to an external liquid supply system.

[0015] In a specific embodiment of the present invention, the nozzle is an atomizing nozzle, and a high-pressure gear water pump and a third motor for driving the high-pressure gear water pump are provided in the body, the input end of the high-pressure gear water pump is connected to the liquid supply module through a pipeline, and the output end of the high-pressure gear water pump is connected to the atomizing nozzle through a pipeline.

[0016] In a specific embodiment of the present invention, a scrubbing device and a second driving device for driving the scrubbing device to perform reciprocating scrubbing motion on the surface to be scrubbed are also provided on one side of the main body in the forward direction.

[0017] In a specific embodiment of the present invention, the second driving device includes a second screw rod, a second screw rod nut cooperating with the second screw rod, and a second motor for driving the second screw rod to rotate, and the scrubbing device is fixed on the second screw rod nut.

[0018] In a specific embodiment of the present invention, the scrubbing device comprises a cleaning head and a fourth motor for driving the cleaning head to rotate, and the cleaning head is used to contact the surface to be scrubbed.

[0019] One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:

[0020] The window cleaning machine is adsorbed on the surface to be cleaned through the rag by the negative pressure adsorption module. When in operation, the cleaning liquid spraying device first sprays the cleaning liquid on the surface to be cleaned. Spraying the cleaning liquid can make the stains on the surface to be cleaned easier to wipe off. Then the first box and the second box are driven to approach or separate to achieve walking, and at the same time drive the rags on the corresponding boxes to clean. Generally speaking, the first box and the second box are first in a close state before starting to walk. The first box is first fixed by negative pressure adsorption, and then the first drive device drives the second box to separate from the first box, and at the same time drives the rags on the second box to clean the surface to be cleaned; next, the second box is fixed by negative pressure adsorption, and then the first drive device drives the first box to approach the second box, and at the same time drives the rags on the first box to clean the surface to be cleaned. And so on to clean the entire surface to be cleaned. The overall structure is relatively simple and stable, and the cleaning effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0022] Figure 1 It is a left side view of a window cleaning machine according to Embodiment 1 of the present invention;

[0023] Figure 2 is a bottom view of a window cleaning machine according to embodiment 1 of the present invention;

[0024] Figure 3 is a structural cross-sectional view of a window cleaning machine according to Embodiment 1 of the present invention;

[0025] Figure 4 is a structural cross-sectional view of a negative pressure device of a window cleaning machine according to embodiment 1 of the present invention;

[0026] Figure 5 It is a schematic structural diagram of a cleaning device of a window cleaning machine according to Embodiment 1 of the present invention;

[0027] Figure 6 is the bottom view of a window cleaning machine according to Embodiment 2 of the present invention;

[0028] Figure 7 is the structural cross-sectional view of a vacuum adsorption device of a window cleaning machine according to Embodiment 2 of the present invention;

[0029] Figure 8 is the structural cross-sectional view of a window cleaning machine according to Embodiment 2 of the present invention. Detailed Embodiments

[0030] The following describes in detail the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

[0032] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is two or more, "greater than", "less than", "exceeding", etc. are understood as not including the present number, and "above", "below", "within", etc. are understood as including the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or the sequence relationship of the indicated technical features.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, or a detachable connection or an inseparable connection, or an integral connection; it can be a mechanical connection, an electrical connection or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication, indirect communication or the interaction relationship between two elements of two elements.

[0035] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0036] Example 1

[0037] Reference Figures 1 to 5 As shown, in one embodiment of the present invention, a window cleaning machine includes a main body 1, wherein the main body 1 includes a first box body 11 and a second box body 12, the bottom surfaces of the first box body 11 and the second box body 12 are both provided with a negative pressure adsorption module 2, and the negative pressure adsorption module 2 is provided with a breathable wiping cloth 23, and the negative pressure adsorption module 2 is adsorbed on the surface to be wiped through the wiping cloth 23, the first box body 11 is connected to the second box body 12 through a first driving device 3, and the first driving device 3 drives the first box body 11 and the second box body 12 to approach or separate, thereby driving the wiping cloth 23 to clean the surface to be wiped, and a cleaning liquid spraying device 4 is provided on one side of the forward direction of the main body 1, and the cleaning liquid spraying device 4 is used to spray the cleaning liquid onto the surface to be wiped.

[0038] The operation mode of the window cleaning machine is as follows: the negative pressure adsorption module 2 is adsorbed on the surface to be cleaned through the wiping cloth 23, and the cleaning liquid spraying device 4 first sprays the cleaning liquid on the surface to be cleaned, and the spraying of the cleaning liquid can make the stains on the surface to be cleaned more easily, and then the first box 11 and the second box 12 are driven to approach or separate to achieve walking, and at the same time, the wiping cloth 23 on the corresponding box is driven to clean. Generally speaking, the first box 11 and the second box 12 are first in a close state before starting to walk, the first box 11 is first fixed by negative pressure adsorption, and then the first driving device 3 drives the second box 12 to separate from the first box 11, and at the same time, the wiping cloth 23 on the second box 12 is used to clean the surface to be cleaned; next, the second box 12 is fixed by negative pressure adsorption, and then the first driving device 3 drives the first box 11 to approach the second box 12, and at the same time, the wiping cloth 23 on the first box 11 is used to clean the surface to be cleaned, and so on to clean the entire surface to be cleaned, and the overall structure is relatively simple and stable, and the cleaning effect is better.

[0039] In one embodiment of the present invention, the first driving device 3 includes a plurality of first screw rods 31 and a plurality of first motors 32 fixed on the first housing 11. The first screw rod 31 is provided with a first screw rod nut 33, and the first screw rod nut 33 is fixed on the second housing 12. The first motor 32 drives the first screw rod 31 to operate through a transmission mechanism 34.

[0040] When the first box 11 is fixed by negative pressure adsorption, the first screw 31 only rotates, and the first screw nut 33 moves linearly on the first screw 31 according to the rotation of the first screw 31, thereby driving the second box 12 to approach or separate from the first box 11, and at the same time, the wiping cloth 23 on the second box 12 cleans the surface to be wiped;

[0041] When the second box 12 is fixed by negative pressure adsorption, the first screw nut 33 is fixed, and the first screw 31 rotates and moves linearly along the first screw nut 33, thereby driving the first box 11 to approach or separate from the second box 12, and at the same time, the wiping cloth 23 on the first box 11 cleans the surface to be wiped;

[0042] It should be noted that the above-mentioned transmission mechanism 34 can be a coupling, and the first motor 32 is connected to the first screw rod 31 through the coupling and drives the first screw rod 31 to rotate. The number of first motors 32 is consistent with the number of first screw rods 31, and each screw rod is driven and operated independently; the transmission mechanism 34 can also be a belt drive. By setting gears on the first screw rod 31 and using multiple belts, one first motor 32 can drive several gears at the same time, so as to rotate several first screw rods 31; of course, the above-mentioned transmission structure can also be a chain drive, gear drive, etc., which is not limited in this embodiment.

[0043] In one embodiment of the present invention, the negative pressure adsorption module 2 includes a plurality of negative pressure devices 21, and the negative pressure devices 21 include a plurality of negative pressure chambers 211 staggeredly distributed on the bottom surfaces of the corresponding first box body 11 and the second box body 12, and the negative pressure chamber 211 is connected to a negative pressure fan 212, and the wiping cloth 23 is wrapped on the negative pressure chamber 211. The operation of the negative pressure fan 212 causes the negative pressure chamber 211 to generate negative pressure and adsorb on the surface to be scrubbed through the wiping cloth 23. When the first box body 11 moves, the negative pressure device 21 on the first box body 11 returns to normal pressure, and the negative pressure device 21 on the second box body 12 is in a negative pressure working state; when the second box body 12 moves, the negative pressure device 21 on the second box body 12 returns to normal pressure, and the negative pressure device 21 on the first box body 11 is in a negative pressure working state.

[0044] In one embodiment of the present invention, the cleaning liquid spraying device 4 includes at least one nozzle 41 and a liquid supply module 42 for supplying liquid to the nozzle 41. The liquid supply module 42 is a water tank arranged in the main body 1 or a pipe connected to an external liquid supply system. The liquid supply module 42 transports the cleaning liquid to the nozzle 41, and then sprays it out from the nozzle 41.

[0045] In one embodiment of the present invention, the nozzle 41 is an atomizing nozzle, and a high-pressure gear water pump 43 and a third motor 44 for driving the high-pressure gear water pump 43 are provided in the main body 1. The input end of the high-pressure gear water pump 43 is connected to the liquid supply module 42 through a pipeline, and the output end of the high-pressure gear water pump 43 is connected to the atomizing nozzle through a pipeline. The cleaning liquid delivered from the liquid supply module 42 is pressurized by the high-pressure gear water pump 43 and then sprayed out from the atomizing nozzle, which is beneficial to expanding the spraying area of ​​the cleaning liquid.

[0046] In one embodiment of the present invention, a scrubbing device 5 is further provided on one side of the advancing direction of the body 1, and a second driving device 6 for driving the scrubbing device 5 to perform a reciprocating scrubbing motion on the surface to be scrubbed. The cleaning ability of the window cleaning machine is improved by adding the scrubbing device 5, and stubborn stains can be removed by the reciprocating scrubbing of the surface to be scrubbed.

[0047] Specifically, the second driving device 6 includes a second lead screw 61, a second lead screw nut 62 cooperating with the second lead screw 61, and a second motor 63 for driving the second lead screw 61 to rotate. The scrubbing device 5 is fixed on the second lead screw nut 62, and the rotation of the second lead screw 61 drives the scrubbing device 5 on the second lead screw nut 62 to perform reciprocating scrubbing. Of course, in practical applications, the second driving device 6 can also be a cylinder, an electric cylinder, etc.

[0048] Preferably, in a specific embodiment, the above-mentioned second lead screw 61 is perpendicular to the movement direction of the body 1, which is beneficial to reducing scrubbing dead angles during scrubbing. The above-mentioned second lead screw 61 may also not be perpendicular to the movement direction of the body 1, and this embodiment does not limit this.

[0049] Preferably, a guiding slide rail can be further added to the above-mentioned second driving device 6. The slider on the slide rail is fixedly connected to the second lead screw 61 nut, which can assist the movement of the second lead screw 61 nut and has a certain supporting effect.

[0050] In one embodiment of the present invention, the scrubbing device 5 includes a cleaning head 51 and a fourth motor 52 for driving the cleaning head 51 to rotate. The cleaning head 51 is used to contact the surface to be scrubbed. The fourth motor 52 drives the cleaning head 51 to rotate. While the cleaning head 51 performs reciprocating scrubbing on the surface to be scrubbed, it can also perform scrubbing by rotating itself, improving the scrubbing efficiency and enhancing the ability to remove stains.

[0051] In a specific embodiment, the above-mentioned cleaning head 51 is disc-shaped, and the disc-shaped surface of the cleaning head 51 is used to contact and scrub the surface to be scrubbed. Preferably, the disc-shaped surface is made of a cotton material or an elastomer material, which is beneficial to pressing the surface to be scrubbed tightly and increasing the scrubbing force. The cotton material or elastomer material can be sponge, rubber, nylon, etc.

[0052] Embodiment 2

[0053] Refer to Figures 1 to 8As shown, it is generally the same as Example 1, except that: the negative pressure adsorption module 2 of this embodiment adds a vacuum adsorption device 22. Specifically, the negative pressure adsorption module 2 of this embodiment includes a plurality of negative pressure devices 21, and the negative pressure device 21 includes a plurality of negative pressure chambers 211 staggeredly distributed on the bottom surfaces of the corresponding first box body 11 and the second box body 12. The negative pressure chamber 211 is connected to a negative pressure fan 212, and the wiping cloth 23 is wrapped on the negative pressure chamber 211. When the negative pressure fan 212 is running, the negative pressure chamber 211 generates negative pressure and is adsorbed on the surface to be wiped through the wiping cloth 23.

[0054] The negative pressure adsorption module 2 also includes a plurality of vacuum adsorption devices 22, and the vacuum adsorption device 22 includes a suction cup assembly 221 and a vacuum pump 222 which are staggeredly distributed on the first box body 11 and the second box body 12. The suction cup assembly 221 is connected to the vacuum pump 222 through a pipeline, and the vacuum pump 222 draws air through the pipeline to make the suction cup assembly 221 adsorbed on the surface to be scrubbed.

[0055] When in use, the vacuum adsorption device 22 and the negative pressure device 21 of the first box body 11 are adsorbed on the glass at the same time, and only the negative pressure device 21 of the second box body 12 is adsorbed on the glass. At this time, since the adsorption force of the second box body 12 is relatively small, the first driving device 3 can drive the second box body 12 to move closer or separate, and so on. In this way, the overall adsorption effect is better, it is not easy to fall off, and it is more stable during operation. The wiping cloth 23 can be pressed against the glass for cleaning, and the cleaning effect is better.

[0056] In one embodiment of the present invention, a solenoid valve 223 is provided on the pipeline, and the solenoid valve 223 controls the conduction of the pipeline and thus controls the suction cup assembly 221 to be adsorbed on the surface to be scrubbed.

[0057] In one embodiment of the present invention, the suction cup assembly 221 includes a suction cup 2211, on which a connector 2212 for connecting a pipe is fixed, and on which a push-pull electromagnet 2213 is provided. The push-pull electromagnet 2213 pushes the suction cup 2211 on the connector 2212 to stick to the glass, and then the vacuum pump 222 extracts the gas in the suction cup 2211 through the connector 2212, so that the suction cup 2211 is in a vacuum state and adsorbed on the glass.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A window cleaning machine, comprising a main body, characterized in that, The main body comprises a first box body and a second box body, the bottom surfaces of the first box body and the second box body are both provided with a negative pressure adsorption module, the negative pressure adsorption module is provided with a breathable wiping cloth, the negative pressure adsorption module is adsorbed on the surface to be scrubbed through the wiping cloth, the first box body is connected to the second box body through a first driving device, the first driving device drives the first box body and the second box body to approach or separate, and then drives the wiping cloth to clean the surface to be scrubbed, and a cleaning liquid spraying device is provided on one side of the forward direction of the main body, and the cleaning liquid spraying device is used to spray the cleaning liquid onto the surface to be scrubbed; The negative pressure adsorption module includes a plurality of negative pressure devices, and the negative pressure devices include a plurality of negative pressure chambers staggeredly distributed on the bottom surfaces of the corresponding first box and the second box, the negative pressure chamber is connected to a negative pressure fan, the wiping cloth is wrapped on the negative pressure chamber, and the operation of the negative pressure fan causes the negative pressure chamber to generate negative pressure and adsorb on the surface to be wiped through the wiping cloth; The negative pressure adsorption module includes a plurality of vacuum adsorption devices, and the vacuum adsorption devices include suction cup assemblies and vacuum pumps that are staggeredly distributed on the first box body and the second box body, and the suction cup assemblies are connected to the vacuum pump through a pipeline; A scrubbing device and a second driving device for driving the scrubbing device to perform reciprocating scrubbing motion on the surface to be scrubbed are also provided on one side of the main body in the forward direction.

2. The window cleaning machine according to claim 1, wherein, The first driving device includes a plurality of first screw rods and a plurality of first motors fixed on the first box body, the first screw rods are provided with first screw rod nuts, the first screw rod nuts are fixed on the second box body, and the first motor drives the first screw rods to operate through a transmission mechanism; When the first box is fixed by negative pressure adsorption, the first screw drives the first screw nut to move linearly, so that the second box approaches or separates from the first box, and at the same time, the wiping cloth on the second box cleans the surface to be wiped; When the second box is fixed by negative pressure adsorption, the first screw moves linearly on the first screw nut, so that the first box approaches or separates from the second box, and at the same time, the wiping cloth on the first box cleans the surface to be wiped.

3. The window cleaning machine according to claim 1, wherein, The pipeline is provided with an electromagnetic valve, and the electromagnetic valve controls the conduction of the pipeline and thus controls the suction cup assembly to be adsorbed on the surface to be scrubbed.

4. The window cleaning machine according to claim 1, wherein, The suction cup assembly comprises a suction cup, a connecting piece for connecting a pipeline is fixed on the suction cup, a push-pull electromagnet is arranged on the connecting piece, and the push-pull electromagnet pushes the suction cup on the connecting piece to stick to the glass.

5. The window cleaning machine according to claim 1, characterized in that, The cleaning liquid spraying device comprises at least one spray head and a liquid supply module for supplying liquid to the spray head. The liquid supply module is a water tank arranged in the body or a pipeline connected to an external liquid supply system.

6. The window cleaning machine according to claim 5, wherein, The nozzle is an atomizing nozzle. A high-pressure gear water pump and a third motor for driving the high-pressure gear water pump are arranged in the body. The input end of the high-pressure gear water pump is connected to the liquid supply module through a pipeline, and the output end of the high-pressure gear water pump is connected to the atomizing nozzle through a pipeline.

7. The window cleaning machine according to claim 1, characterized in that, The second driving device includes a second screw rod, a second screw rod nut matched with the second screw rod, and a second motor for driving the second screw rod to rotate, and the scrubbing device is fixed on the second screw rod nut.

8. The window cleaning machine according to claim 1, characterized in that, The scrubbing device comprises a cleaning head and a fourth motor for driving the cleaning head to rotate, and the cleaning head is used to contact with the surface to be scrubbed.

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