Window cleaning device and method of controlling the same

Abstract

The present disclosure relates to a window cleaning device and a control method thereof. The window cleaning device includes a housing forming an outer shape including a first surface facing a window, and a cleaning liquid tank configured inside the housing and storing a cleaning liquid supplied using a spray nozzle. The housing is formed with a tank hole at the first surface, the tank hole being formed in a manner that the cleaning liquid tank can be inserted and withdrawn.

Description

Technical Field

[0001] This disclosure relates to a window cleaning device, and more specifically, to a window cleaning device that sprays cleaning fluid toward a window. Background Technology

[0002] Under normal circumstances, it is difficult to clean the exterior surfaces of windows that are installed on the walls of buildings. Therefore, if they are not maintained for a long time, they are easily contaminated by external dust and environmental pollution, which will lead to a decrease in the lighting performance of the windows.

[0003] You can hire other professional companies to clean the exterior surfaces of your windows, but this involves paying regular fees.

[0004] A tool for cleaning windows is disclosed in existing Korean patent KR10-1654876B1. However, this tool requires a person to manually clean the windows from inside the room, which is very cumbersome. Furthermore, when actually using this tool indoors, it is difficult to clean the entire outer surface of the window.

[0005] Furthermore, an existing Korean patent, KR10-1920917B1, discloses a device for cleaning windows while moving outside the window.

[0006] However, the published documents only disclose a structure that moves while wiping the outer surface of the window, which may result in the window not being cleaned properly. Summary of the Invention

[0007] The problem that the invention aims to solve

[0008] The purpose of this disclosure is to address the aforementioned problems, as well as other issues.

[0009] Another objective is to provide a window cleaning device for cleaning foreign objects attached to the outer surface of a window.

[0010] Another objective is to provide a window cleaning device that allows users to easily replace the cleaning fluid tank.

[0011] Another objective is to provide a window cleaning device that is stably connected when the cleaning fluid tank is installed in the housing.

[0012] Another objective is to provide a window cleaning device that prevents the configuration of the can lid from hindering the cleaning module or from being interfered with by the screen.

[0013] Another objective is to provide a control method for a window cleaning device that notifies when to replace the cleaning fluid by sensing the water level inside the cleaning fluid tank.

[0014] Another objective is to provide a window cleaning device that uses a pump or spray nozzle to stably supply cleaning fluid when the cleaning fluid tank is installed in the housing.

[0015] Another objective is to provide a window cleaning device in which the cleaning fluid tank and the connecting pipe are joined in a tight fit.

[0016] Methods for solving problems

[0017] To achieve the aforementioned objectives, embodiments of this disclosure provide a window cleaning device comprising: a housing having a shape and including a first surface facing the window; and a cleaning fluid tank disposed within the housing and storing cleaning fluid supplied using the spray nozzle.

[0018] The outer casing has a can opening formed on the first surface, which is formed in a manner that allows the cleaning fluid can be inserted and removed.

[0019] The can lid opens towards the front where the window is located.

[0020] The housing includes a can lid for opening and closing the can opening. The window cleaning device also includes a cleaning module having the spray nozzle protruding from a first surface of the housing.

[0021] The can opening is located below the cleaning module.

[0022] The window cleaning device includes a screen module disposed on a first surface of the housing, and the length of the screen disposed above the main body is adjustable. The screen module is positioned above the cleaning module.

[0023] The main body includes: a first pump that supplies cleaning fluid stored in the cleaning fluid tank to the spray nozzle; and a connecting pipe that connects the cleaning fluid tank to the first pump.

[0024] When the cleaning fluid tank is disposed inside the housing, the cleaning fluid tank is connected to the connecting pipe.

[0025] A connection port for connecting to the connecting pipe is provided on the rear surface of the cleaning fluid tank.

[0026] The window cleaning device includes a display that provides information about the cleaning fluid tank. The display is disposed on the first surface of the housing.

[0027] The cleaning fluid tank includes a water level sensor for sensing the water level of the cleaning fluid stored inside the tank. When the water level sensed by the water level sensor is below a set level, a notification is provided via the display.

[0028] The cleaning fluid tank includes an inner wall that is spaced apart on one side of the water level sensor and extends in a vertical direction.

[0029] The spray nozzle is disposed on the first surface of the housing to spray cleaning fluid toward the window.

[0030] The control method for the window cleaning device disclosed herein includes the following steps: sensing the water level inside a cleaning fluid tank for storing cleaning fluid; and providing a cleaning fluid replenishment notification when the sensed water level is below a set height. Furthermore, the control method includes the step of sensing the opening of a window and moving the window cleaning device to a different position.

[0031] Before moving the window cleaning device to a different position, the method for controlling the window cleaning device also includes the step of moving the window cleaning device to a basic position.

[0032] Following the step of providing cleaning fluid replenishment notification, the control method for the window cleaning device includes the following steps: stopping the operation of the first pump, which supplies cleaning fluid from the cleaning fluid tank to the spray nozzle.

[0033] In the step of sensing the opening of the window, an ultrasonic sensor is used to sense changes in the distance between the sensor and the window.

[0034] The control method for the window cleaning device includes the following steps: sensing the cleaning fluid tank using a tank sensing sensor; sensing the water level in the cleaning fluid tank using a water level sensor when the cleaning fluid tank is reinstalled; and providing a notification that cleaning is possible when the water level in the cleaning fluid tank exceeds a set height.

[0035] The window cleaning device disclosed herein includes: a frame movably mounted to a window frame; and a body movably mounted to the frame for cleaning the window.

[0036] The main body includes: a housing that forms an outline including a first surface facing the window; and a cleaning fluid tank disposed inside the housing and storing cleaning fluid supplied by a spray nozzle.

[0037] The housing includes a can cover on the first surface that opens and closes a can opening, the can opening allowing the cleaning fluid can to enter and exit.

[0038] The frame is equipped with tracks that extend in the vertical direction.

[0039] The main body includes: a mover that moves vertically along the track; and an ultrasonic sensor for sensing the opening of the window.

[0040] When the ultrasonic sensor detects that the window is open, the mover causes the main body to move upward from the lower end of the frame by a predetermined interval.

[0041] To achieve the aforementioned objectives, embodiments of this disclosure provide a window cleaning apparatus comprising: a housing including a first surface facing the window; and a cleaning fluid tank detachably disposed within the housing for storing cleaning fluid supplied via a spray nozzle.

[0042] The window cleaning device includes: a connecting pipe for supplying cleaning fluid stored in the cleaning fluid tank to the spray nozzle; and a pipe connector disposed at one end of the connecting pipe and connected to the cleaning fluid tank.

[0043] The cleaning fluid tank includes a connection port that connects to the pipe connector. When the cleaning fluid tank is disposed inside the housing, the connection port is connected to the pipe connector.

[0044] A recessed insertion space is formed on the rear surface of the cleaning fluid tank to accommodate a portion of the pipe connector. The connection port is located in front of the insertion space.

[0045] The cleaning fluid tank includes a recessed wall disposed from the rear surface of the cleaning fluid tank toward the front to form the insertion space. The diameter of the recessed wall is larger than the diameter of the connection port.

[0046] The connection port includes: a port valve for opening and closing a valve orifice formed in the connection port; and a port seal disposed along the periphery of the valve orifice. The port valve closes the valve orifice by contacting the port seal.

[0047] The port valve includes: a valve plate that opens and closes a valve orifice; a movement guide that guides the valve plate to move in a forward and backward direction; and a stop plate that restricts the rearward movement of the port valve.

[0048] The connection port includes: a port peripheral wall forming a valve configuration space for configuring the port valve; and a guide portion having a guide hole for the movement of the movable guide. A supply hole is formed on one side of the port peripheral wall to allow cleaning fluid from inside the cleaning fluid tank to flow into the valve configuration space.

[0049] The pipe connector includes: a connector body having an insertion tube with a communicating hole; and a movable body disposed on the connector body in a back-and-forth direction. When the pipe connector is connected to the connection port, the communicating hole is exposed to the outside.

[0050] The connector body includes outer spacer tubes spaced apart toward the outer periphery of the insertion tube. A groove for inserting a portion of the movable body is formed between the insertion tube and the outer spacer tube.

[0051] When the pipe connector is connected to the connection port, the through hole is disposed inside the connection port.

[0052] The pipe connector includes a pair of connector seals mounted on the periphery of the insertion tube at a distance from each other along its length. A communication hole is formed between the pair of connector seals.

[0053] The window cleaning device disclosed herein includes: a housing having a first surface facing the window; a cleaning fluid tank disposed detachably in the housing and storing cleaning fluid supplied by a spray nozzle; a connecting pipe supplying the cleaning fluid stored in the cleaning fluid tank to the spray nozzle; and a pipe connector disposed at one end of the connecting pipe and connected to the cleaning fluid tank.

[0054] The housing includes a can cover on the first surface that opens and closes a can opening for the cleaning fluid can to enter and exit.

[0055] The cleaning fluid tank includes a connection port that connects to the pipe connector.

[0056] When the can lid is closed, the inner surface of the can lid causes the connection port to fit snugly against the pipe connector.

[0057] The pipe connector is fixedly disposed inside the housing.

[0058] The connection port is located on the rear surface of the cleaning fluid tank.

[0059] The details of other embodiments are contained in the detailed description and accompanying drawings.

[0060] Invention Effects

[0061] The window cleaning device according to this disclosure has one or more of the following effects.

[0062] First, the window cleaning device disclosed herein can automatically clean the outer surface of a window. It has the advantage of keeping the outer surface of the window clean.

[0063] Secondly, by moving the main body upwards to the area where the lid can be opened, users can easily replace the cleaning fluid tank.

[0064] Third, when the cleaning fluid tank is installed inside the housing, it can be stably installed on the connecting pipe through the connection port.

[0065] Fourth, the can lid is positioned below the cleaning module, so it does not obstruct the module's operation. Furthermore, the lid can be opened to replace the cleaning fluid tank when necessary. Additionally, the mesh module is positioned above the cleaning module, allowing for cleaning fluid tank replacement without interference from the mesh.

[0066] Fifth, it also has the following advantages: by sensing the water level in the cleaning fluid tank, it can notify when the cleaning fluid tank needs to be replaced, thus continuously maintaining the cleaning function of the window cleaning device.

[0067] Sixth, the sealing structure of the pipe connector and the connecting hole structure configured between them can prevent the cleaning fluid discharged from the cleaning fluid tank from leaking to the outside.

[0068] The effects of this disclosure are not limited to those mentioned above, and those skilled in the art should be able to clearly understand other effects not mentioned within the scope of the claims. Attached Figure Description

[0069] Figure 1 This is a perspective view of a window cleaning device disposed on one side of a window, according to an embodiment of the present disclosure.

[0070] Figure 2 This is a perspective view of the frame and main body of a window cleaning device provided in one embodiment of the present disclosure.

[0071] Figure 3 This is a perspective view of one side of the main body provided in one embodiment of the present disclosure.

[0072] Figure 4 This is a perspective view of the other side of the main body provided in one embodiment of this disclosure.

[0073] Figure 5 This is a perspective view showing the state of the cleaning fluid tank being pulled out of the body according to an embodiment of the present disclosure.

[0074] Figure 6 This is a diagram illustrating the structure of the connection between the cleaning fluid tank and the first pump provided in one embodiment of this disclosure.

[0075] Figure 7 This is a diagram illustrating the internal structure of a cleaning fluid tank provided in one embodiment of this disclosure.

[0076] Figure 8 This is a side cross-sectional view used to illustrate a connection port provided in one embodiment of the present disclosure.

[0077] Figure 9 This is a diagram illustrating a pipe connector and port valve provided in one embodiment of this disclosure.

[0078] Figure 10 This is a diagram used to illustrate a state where the pipe connector and connection port provided in one embodiment of the present disclosure are not fully connected.

[0079] Figure 11 This is a diagram illustrating the fully connected state of a pipe connector connection port provided in one embodiment of this disclosure.

[0080] Figure 12 This is a block diagram used to illustrate the control unit and related structures provided in one embodiment of this disclosure.

[0081] Figure 13 This is a sequence diagram of the control method for a window cleaning device provided in one embodiment of the present disclosure.

[0082] Figure 14 yes Figure 13 The sequence diagram of the control method for the window cleaning device following the control method. Detailed Implementation

[0083] The advantages, features, and methods of achieving these advantages and features of the present invention will become clear from the detailed embodiments described below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and can be implemented in many different forms. These embodiments are provided merely to achieve the completeness of the disclosure of the present invention and to fully disclose the scope of the invention to those skilled in the art, while the scope of protection of the present invention is defined by the scope of the claims. Throughout the specification, the same reference numerals refer to the same constituent elements.

[0084] The terms 'first,' 'second,' and 'third' used in this description are only for distinguishing structures and are not limited thereto.

[0085] Hereinafter, the window cleaning apparatus provided by an embodiment of the present invention will be described with reference to the accompanying drawings.

[0086] Reference Figure 1 The window cleaning device installed in the window frame is described.

[0087] Multiple windows 1 can be configured in window frame 2.

[0088] A window cleaning device 10 is disposed on the window frame 2. The window cleaning device 10 is disposed on one side of the window 1.

[0089] The window cleaning device 10 is configured to move in the left-right direction within the window frame 2. The window cleaning device 10 can clean the window 1 while moving up and down on one side of the window 1.

[0090] The window cleaning device 10 includes: a frame 11, which is mounted on the window frame 2 and moves in the left-right direction of the window frame 2; and a body 100, which is configured on the frame 11 in a manner that allows it to move in the up-down direction.

[0091] The frame 11 is configured to move in the left-right direction within the window frame 2. The frame 11 can be installed in a rectangular shape within the window frame 2. The frame 11 is positioned on one side of the window 1.

[0092] The main body 100 can move vertically along the frame 11 while cleaning the window 1. The main body 100 can remove or wipe away foreign objects from the window 1.

[0093] The window cleaning device 10 includes a screen 294 connected to both the frame 11 and the main body 100. The vertical length of the screen 294 can be deformed according to the configuration of the main body 100.

[0094] Mesh screen 294 can be an insect-proof screen to prevent foreign objects or insects from entering the room.

[0095] One end of the mesh 294 is connected to the upper end of the frame 11. The other end of the mesh 294 is connected to the main body 100. The other end of the mesh connected to the main body 100 can be configured in a coiled shape.

[0096] Therefore, the winding shape of the other end of the mesh 294 changes according to the configuration of the main body 100, thereby enabling the vertical length of the mesh 294 to be deformed.

[0097] Reference Figure 2 The structure of the framework and the main body is explained.

[0098] Frame 11 may have a rectangular shape. Frame 11 may have the same form as a screen frame typically disposed on the outer edge of a window frame.

[0099] The frame 11 includes a pair of side frames 12a and 12b that extend vertically and are spaced apart horizontally.

[0100] The frame 11 includes: an upper frame 14, which connects the upper ends of a pair of side frames 12a and 12b; and a lower frame 16, which connects the lower ends of the pair of side frames 12a and 12b.

[0101] Tracks 18 are respectively provided on a pair of side frames 12a and 12b to guide the vertical movement of the main body 100.

[0102] The track 18 is disposed on the outer peripheral surface of each of the pair of side frames 12a and 12b. The track 18 protrudes outward from the outer peripheral surface of each of the pair of side frames 12a and 12b.

[0103] The main body 100 can move vertically along the track 18.

[0104] The main body 100 includes an outer shell 102 forming the shape. The outer shell 102 includes: a lower shell 110 having a space formed therein; and an upper shell 104 disposed above the lower shell 110.

[0105] Two structures can be configured inside the lower shell 110: a structure for cleaning the window and a structure for moving the main body 100 in the vertical direction.

[0106] A solar panel 106 may be configured on the upper housing 104. The solar panel 106 configured on the upper housing 104 may be a power source for powering the main body 100.

[0107] The upper shell 104 may be formed into a curved shape. The upper shell 104 may have at least one inclined surface.

[0108] Reference Figure 3 The structure of the main body is explained.

[0109] The main body 100 includes an outer shell 102 that forms its shape.

[0110] The outer casing 102 includes: a lower casing 110; and an upper casing 104 disposed above the lower casing 110.

[0111] Spaces for arranging multiple structures are formed inside the lower shell 110 and the upper shell 104.

[0112] A solar panel 106 is installed on the upper shell 104.

[0113] The main body 100 includes a cleaning fluid tank 130, which is disposed inside the outer casing 102 and is used to store cleaning fluid. The main body 100 includes a first pump 150, which draws the cleaning fluid stored in the cleaning fluid tank 130.

[0114] The first pump 150 can supply cleaning fluid through the spray nozzle 240 described below. The first pump 150 can supply cleaning fluid stored in the cleaning fluid tank 130 to the spray nozzle 240 (see reference). Figure 4 ).

[0115] The main body 100 includes a second pump 152 for discharging cleaning fluid collected inside the housing 102. The second pump 152 can also discharge cleaning fluid collected inside the cleaning module 170 described below to the outside of the main body 100.

[0116] The main body 100 includes a battery 128 disposed inside the housing 102 and storing electricity generated by the solar panel 106. The battery 128 can supply power to the structure in which the main body 100 operates. Furthermore, the battery 128 can obtain power from an independent external power source.

[0117] The main body 100 may include a motherboard 126, which is disposed inside the housing 102 and is equipped with multiple electronic components for controlling the electronically operated structure.

[0118] Reference Figure 4 This provides an explanation of another structure of the main body.

[0119] The main body 100 includes a first surface 112 facing the window. The outer shell 102 includes a first surface 112 facing the window. The lower shell 110 includes a first surface 112 facing the window.

[0120] The first surface 112 is configured to face the window when the main body 100 is mounted on the frame 11.

[0121] The main body 100 includes a cleaning module 170 for removing foreign objects from the window. The cleaning module 170 is configured such that a portion of it protrudes from the first surface 112.

[0122] The cleaning module 170 can spray cleaning fluid towards the window. The cleaning module 170 can adhere closely to the window to wipe away foreign matter adhering to it. The cleaning module 170 can also spray air towards the window.

[0123] The cleaning module 170 includes a scraper 250 on its front surface 174 that is in close contact with the window. The cleaning module 170 also includes a spray nozzle 240 on its front surface 174 that sprays cleaning fluid toward the window.

[0124] An air outlet 192 is formed on the front surface of the cleaning module 170. An air intake 190 is formed on the front surface 174 of the cleaning module 170 for drawing in air or cleaning fluid.

[0125] Here, the front surface 174 of the cleaning module 170 may be a surface configured to face the window.

[0126] An ultrasonic sensor 260 for sensing the distance to the window is disposed on one side surface of the cleaning module 170. The ultrasonic sensor 260 can sense the distance to the window, thereby allowing the cleaning module 170 to be in close contact with the window.

[0127] A surface roughness sensor 262 for sensing whether the window is dirty is disposed on one side surface of the cleaning module 170. The surface roughness sensor 262 can sense whether the window is dirty by sensing the gloss level of the window.

[0128] A mesh module 290 is disposed on the exterior of the first surface 112 of the housing 102. The mesh module 290 is positioned above the cleaning module 170. A mesh 294 is exposed on the mesh module 290. The mesh module 290 has internally formed spaces for arranging the mesh 294 in a wound state.

[0129] As the main body 100 moves up and down along the frame 11, the mesh wrapped inside the mesh module 290 can be unfolded or rolled up.

[0130] A can lid 114 is provided on the first surface 112 of the housing 102 for opening and closing an inlet / outlet, which allows the cleaning fluid can 130 to enter and exit. The first surface 112 of the housing 102 is disposed facing the interior. Therefore, by configuring the can lid 114 in an open manner within the interior space, the user can pull out or replace the cleaning fluid can 130 from the housing 102.

[0131] A display 120 may be disposed on the first surface 112 of the housing 102. The display 120 may visually notify the user of information related to whether the window cleaning device 10 is working or the external environment.

[0132] A drive gear 116 is disposed on the first surface 112 of the housing 102, and the drive gear 116 is connected to a gear module (not shown) disposed on the frame 11. The main body 100 includes a drive motor 118 for rotating the drive gear 116.

[0133] When the main body 100 is positioned in the lower end region of the frame 11, the drive gear 116 meshes with the gear module 20. Therefore, as the drive gear 116 rotates, the frame 11 and the main body 100 can move in the left-right direction on the window frame 2.

[0134] A pair of shell grooves 122 are formed at both ends of the first surface 112 of the outer shell 102. A mover 124 is disposed in each of the pair of shell grooves 122. The pair of shell grooves 122 extend in the vertical direction.

[0135] Reference Figure 5 The pull-out structure of the cleaning fluid tank will be explained.

[0136] A can lid 114 is disposed on the first surface 112 of the outer casing 102. The can lid 114 opens toward the window. The can lid 114 can be opened and closed through the can opening 113 formed on the first surface 112 of the outer casing 102.

[0137] When the can lid 114 is opened toward the direction where the window 1 is located, the on-site personnel inside can pull out the cleaning fluid tank 130 from the main body 100.

[0138] When the can lid 114 opens the can opening 113, the cleaning fluid can 130 can be pushed into or pulled out of the housing 102 through the can opening 113.

[0139] When the cleaning fluid tank 130 is inserted into the housing 102, it connects with the connecting tube 138 (see reference). Figure 6 The connecting pipe 138 is connected to the first pump 150 (see reference). Figure 6 )connect.

[0140] The cleaning fluid tank 130 includes: a tank body 132 that contains cleaning fluid; and a cover 131 that covers the upper part of the tank body 132. The cover 131 is detachable from the tank body 132.

[0141] Reference Figure 6 The connection structure between the cleaning fluid tank and the pump inside the outer casing is explained.

[0142] The cleaning fluid tank 130 is connected to the first pump 150 via a connecting pipe 138. The cleaning fluid tank 130 is provided with a connection port 134 that connects to the connecting pipe 138. The connection port 134 is located on the rear surface of the cleaning fluid tank 130.

[0143] An insertion space 133a, recessed forward, is formed on the rear surface of the cleaning fluid tank 130. A connection port 134, which connects to the connecting pipe 138, is disposed on the rear surface of the cleaning fluid tank 130. The connection port 134 is disposed in front of the insertion space 133a.

[0144] The insertion space 133a can be a space recessed inward from the rear surface of the cleaning fluid tank 130. A pipe connector 140 can be disposed in the insertion space 133a, the pipe connector 140 being disposed at the end of the connecting pipe 138.

[0145] The pipe connector 140, which is connected to the connection port 134, is positioned within the insertion space 133a, thereby enabling a stable connection to be maintained.

[0146] The first pump 150 supplies cleaning fluid stored in the cleaning fluid tank 130 to the spray nozzle 240. An additional connecting pipe 139 is provided on the other side of the first pump 150, which is connected to supply cleaning fluid to the spray nozzle 240.

[0147] Reference Figure 7 The tank structure of the cleaning fluid tank is described.

[0148] The tank 132 has an internal space for dispensing cleaning fluid. The tank 132 has an upward-opening shape.

[0149] A connection port 134 is provided at the rear of the tank body 132. A recessed wall 133 for forming an insertion space 133a is included at the rear of the tank body 132. The recessed wall 133 is disposed from the rear surface of the tank body 132 to the front.

[0150] A connection port 134 is disposed in front of a recessed wall 133. The connection port 134 protrudes forward from the recessed wall 133. A supply hole 134a1 is formed on the peripheral surface of the connection port 134, the supply hole 134a1 being used to supply cleaning fluid from inside the cleaning fluid tank 130 to the first pump 150.

[0151] Connection port 134 includes a port peripheral wall 134a, which forms a configuration for configuring port valve 135 (see reference). Figure 8 The valve configuration space 134a2. The port peripheral wall 134a protrudes forward from the front end of the recessed wall 133.

[0152] The diameter of the port peripheral wall 134a can be made smaller than the diameter of the recessed wall 133. A supply hole 134a1 is formed on one side of the port peripheral wall 134a.

[0153] A water level sensor 137 is disposed on one side of the tank 132. The water level sensor 137 can be disposed on one side wall of the tank 132. The water level sensor 137 can sense the amount of cleaning fluid stored inside the tank 132.

[0154] Therefore, the system can notify the user when it senses that the cleaning fluid level inside the tank 132 is below a certain threshold. The window cleaning device can display the storage capacity of the cleaning fluid in the cleaning fluid tank 130 on the display 120.

[0155] An internal wall 136 may be provided inside the tank 132, and the internal wall 136 is located in the area where the water level sensor 137 is located. The internal wall 136 protrudes inward from the side wall of the tank 132.

[0156] Reference Figure 8 The specific structure of the connection port configured in the cleaning fluid tank is described.

[0157] The connection port 134 is located in front of the insertion space 133a. A valve hole 134d, which is open in the front-back direction, is formed in the connection port 134.

[0158] A port valve 135 is configured at the connection port 134 to open and close the valve orifice 134d. The port valve 135 can open or close the valve orifice 134d while moving in the back-and-forth direction.

[0159] The connection port 134 forms a valve configuration space 134a2 for configuring the port valve 135. The connection port 134 includes a port peripheral wall 134a for forming the valve configuration space 134a2. A supply hole 134a1 is formed on one side of the port peripheral wall 134a.

[0160] A guide portion 134b is provided at the front end of the connection port 134, and the guide portion 134b forms a guide hole 134b1. A movable guide member 135b is disposed within the guide hole 134b1. The movable guide member 135b is disposed within the guide hole 134b1 formed inside the guide portion 134b.

[0161] The guide portion 134b is disposed inside the port peripheral wall 134a. The diameter of the guide portion 134b is smaller than the diameter of the port peripheral wall 134a.

[0162] The port valve 135 includes: a valve plate 135a that opens and closes a valve port 134d; and a movement guide 135b that guides the valve plate 135a to move in the back-and-forth direction.

[0163] The port valve 135 includes a stop plate 135c that restricts rearward movement of the port valve 135. The stop plate 135c is spaced apart from the valve plate 135a.

[0164] The stop plate 135c restricts the rearward movement of the port valve 135 by contacting the port seal 134c described below.

[0165] Port valve 135 includes a valve seal 135d disposed between valve plate 135a and stop plate 135c. Valve seal 135d may be in close contact with port seal 134c. It may be configured such that valve seal 135d contacts port seal 134c when port valve 135 closes valve orifice 134d.

[0166] A port seal 134c is disposed at the periphery of the valve bore 134d along the connection port 134. The port seal 134c can connect the connection port 134 to the port valve 135 or the pipe connector 140 described below (see...). Figure 9 Insertion tube 142 (refer to) Figure 9 The spaces between them should be sealed.

[0167] Connection port 134 includes a valve spring 135e disposed between connection port 134 and port valve 135. Without applying additional force to port valve 135, valve spring 135e pushes port valve 135 rearward, causing port valve 135 to block valve orifice 134d.

[0168] Reference Figure 9 The structure of the pipe connector and port valve is described.

[0169] The pipe connector 140 includes: a connector body 141; and a movable body 144 configured on the connector body 141 in a manner that allows it to move in the front-rear direction.

[0170] exist Figure 9 The image shows the state in which the moving body 144 has been pushed to the rear.

[0171] The connector body 141 includes: an insertion tube 142, which is inserted into the connection port 134 when connected to the connection port 134; and an outer spacer tube 143, which is spaced apart from the outer periphery of the insertion tube 142.

[0172] A connecting hole 142a is formed on the peripheral surface of the insertion tube 142. The cleaning fluid can flow into the pipe connector 140 through the connecting hole 142a.

[0173] A groove 141a for inserting a portion of the movable body 144 is formed in the connector body 141 (see reference). Figure 10 A groove 141a is formed between the insertion tube 142 and the outer spacer tube 143.

[0174] The pipe connector 140 includes a connector spring 145 that actuates the movable body 144d (see reference). Figure 10 Connector spring 145 is disposed in groove 141a.

[0175] The pipe connector 140 includes: a first connector seal 146a disposed on the outer periphery of the insertion tube 142; and a second connector seal 146b disposed on the outer periphery of the insertion tube 142 and spaced apart from the first connector seal 146a.

[0176] A communication hole 142a is provided between the first connector seal 146a and the second connector seal 146b. When the movable body 144 moves rearward, the communication hole 142a can be exposed to the outside.

[0177] Reference Figure 10 and Figure 11 The moving and sealing structures of the valve corresponding to the connector configuration are described.

[0178] Figure 10 This refers to the configuration of the pipe connector and port valve in the state where the insertion tube 142 is not inserted into the connection port 134. Figure 11 This refers to the configuration of the pipe connector and port valve 135 in which the insertion tube 142 is inserted into the connection port 134.

[0179] First, refer to Figure 10 The configuration of the pipe connector 140 and the port valve 135 with the valve orifice 134d of the connection port 134 closed is described.

[0180] With the valve orifice 134d closed, the valve seal 135d contacts the port seal 134c. Therefore, the valve plate 135a closes the valve orifice 134d.

[0181] Therefore, the cleaning fluid stored inside the cleaning fluid tank 130 will not be discharged to the outside.

[0182] The closed state of valve orifice 134d can be the same as the state in which pipe connector 140 is not configured in insertion space 133a.

[0183] Reference Figure 11 The configuration of the pipe connector 140 and the port valve 135 with the valve hole 134d of the connection port 134 open is described.

[0184] With the valve port 134d open, the insertion tube 142 of the pipe connector 140 is inserted into the connection port 134.

[0185] When the can lid 114 closes the can opening 113, the inner surface of the can lid 114 can cause the connection port 134 to fit tightly against the pipe connector 140. That is, the inner surface of the can lid 114 can push the cleaning fluid can 130 rearward, thereby moving it toward the rear where the pipe connector 140 is located.

[0186] With the valve orifice 134d open, the communication hole 142a formed in the insertion tube 142 is disposed inside the connection port 134. Therefore, the cleaning fluid discharged through the supply hole 134a1 formed in the connection port 134 can flow into the communication hole 142a formed in the insertion tube 142.

[0187] With the valve orifice 134d open, the port seal 134c is in contact with the first connector seal 146a. Therefore, cleaning fluid is prevented from leaking to the outside through the valve orifice 134d of the connection port 134.

[0188] With the valve orifice 134d open, the movable body 144 moves into the recess 141a. The movable body 144 contacts the port seal 134c and moves rearward. Therefore, with the valve orifice 134d open, the insertion tube 142 is exposed to the outside.

[0189] With the valve orifice 134d open, the externally exposed insertion tube 142 is inserted into the connection port 134. With the valve orifice 134d open, the externally exposed insertion tube 142 is disposed within the valve configuration space 134a2 formed inside the connection port 134.

[0190] Reference Figure 12The control unit and related structures of the window cleaning device are explained.

[0191] The window cleaning device of the present invention includes a control unit 400.

[0192] The window cleaning device of the present invention includes a water level sensor 137 for sensing the water level of the cleaning fluid present in the cleaning fluid tank 130. The window cleaning device also includes an ultrasonic sensor 260 for sensing the distance between itself and the window 1 it is facing.

[0193] The ultrasonic sensor 260 can determine whether the window is open based on the sensed distance between itself and the window 1.

[0194] The window cleaning device of the present invention includes a can sensor 404 for determining whether the cleaning fluid can 130 is disposed inside the housing 102. The can sensor 404 may be a switch sensor.

[0195] Therefore, with the cleaning fluid tank 130 disposed inside the housing 102, the cleaning fluid tank 130 can press the tank sensing sensor 404.

[0196] The window cleaning device of the present invention includes a motion sensing sensor 402 for sensing the position of the main body 100. The motion sensing sensor 402 may be a Hall sensor.

[0197] In addition, a magnet (not shown) for determining the position of the main body 100 can be arranged on the track 18. Therefore, the motion sensing sensor 402 is able to sense the vertical position of the main body 100.

[0198] The control unit 400 can provide notifications or status displays to the display 120 based on whether the cleaning fluid tank 130 is installed, as sensed by the tank sensing sensor 404.

[0199] That is, when the cleaning fluid tank 130 is installed inside the housing 102, the display 120 can notify that the cleaning fluid tank 130 is installed. Furthermore, when the cleaning fluid tank 130 is not installed inside the housing 102, the display 120 can notify that the cleaning fluid tank 130 is not installed.

[0200] The control unit 400 can display the window status on the display 120 based on whether the window is open or not, as sensed by the ultrasonic sensor 260.

[0201] The control unit 400 can provide a replenishment notification for the cleaning fluid tank 130 to the display 120 based on the water level of the cleaning fluid tank 130 sensed by the water level sensor 137.

[0202] The control unit 400 can move the main body 100 in the vertical direction by activating the mover 124. The control unit 400 can also adjust the operation of the first pump 150.

[0203] Reference Figure 13 The control method for the window cleaning device is explained.

[0204] The step of performing the water level sensor 137 to sense the water level of the cleaning fluid present inside the cleaning fluid tank 130 is (S100).

[0205] Subsequently, it is determined whether the water level in the cleaning fluid tank 130 is lower than the set height (S200), and the step of providing a cleaning fluid replenishment notification is executed (S300).

[0206] The control unit 400 can provide an alarm for the need to replenish cleaning fluid via the display 120.

[0207] Subsequently, the step of stopping the first pump 150 from operating is executed (S400). When the first pump 150 is operating, the control unit 400 stops the first pump 150 from operating.

[0208] Therefore, the spraying of cleaning fluid using the spray nozzle 240 can be stopped. That is, when window 1 is open, the spraying of cleaning fluid into the indoor space can be prevented.

[0209] Subsequently, the step of moving the window cleaning device to the basic position is performed (S500). Here, the basic position may be the position at the lowest point where the main body 100 moves down along the track.

[0210] Moving to the basic position is to confirm the position of the main body 100.

[0211] Then, it is determined whether the window is open (S600), and the step of moving the window cleaning device to the second position is performed (S700).

[0212] The control unit 400 moves the main body 100 from the basic position to the replacement position. The replacement position may be a position for replacing the cleaning fluid tank 130.

[0213] When the main body 100 is positioned below the window 1 or window frame 2, the can lid 114 cannot be opened. Therefore, changing the position can allow the can lid 114 to be opened.

[0214] In addition, the position can be a position suitable for the user to pull out or push in the cleaning fluid tank 130 from the housing 102.

[0215] Reference Figure 14 The control method for the window cleaning device after the cleaning fluid tank has been reinstalled is explained.

[0216] Figure 14 The provided control method can be Figure 13 The provided control methods will be implemented subsequently.

[0217] After replacing the cleaning fluid tank 130, the control method is to determine whether the cleaning fluid tank 130 is installed correctly or whether the cleaning fluid level is appropriate.

[0218] First, the step of sensing the cleaning fluid tank 130 using the tank sensing sensor 404 is performed (S1000).

[0219] The tank sensing sensor 404 senses whether the cleaning fluid tank 130 is located inside the housing 102.

[0220] Subsequently, it is determined whether the cleaning fluid tank 130 is installed inside the housing 102 (S1100), and the step of sensing the water level of the cleaning fluid inside the cleaning fluid tank 130 by the water level sensor 137 is executed (S1200).

[0221] Determine whether the water level in the cleaning fluid tank 130 has reached or exceeded the set height (S1300). When the water level in the cleaning fluid reaches or exceeds the set height, a notification indicating that cleaning is possible can be provided via the display 120 (S1400).

[0222] However, if the water level of the cleaning fluid is lower than the set height, a replenishment notification for the cleaning fluid tank 130 can be provided via the display 120 (S1500).

[0223] The preferred embodiments of this disclosure have been illustrated and described above. However, this disclosure is not limited to the specific embodiments described above. Various modifications can be made by those skilled in the art without departing from the spirit of this disclosure as claimed in the claims. Moreover, such modifications should not be understood separately from the technical spirit or prospects of this disclosure.

Claims

1. A window cleaning device, comprising: The outer casing, which forms a shape and includes a first surface facing the window; as well as A cleaning fluid tank, disposed inside the housing, stores the cleaning fluid supplied via a spray nozzle. The outer casing has a can opening formed on the first surface, which is formed in a manner that allows the cleaning fluid can be inserted and removed.

2. The window cleaning device according to claim 1, wherein, The outer casing includes a can lid for opening and closing the can opening.

3. The window cleaning device according to claim 2, wherein, The can lid opens towards the front where the window is located.

4. The window cleaning device according to claim 1, wherein, The window cleaning device further includes a cleaning module having the spray nozzle protruding from a first surface of the housing. The can opening is located below the cleaning module.

5. The window cleaning device according to claim 4, wherein, The window cleaning device also includes a screen module, which is disposed on the first surface of the housing and adjusts the vertical length of the screen disposed above the main body. The mesh module is positioned above the cleaning module.

6. The window cleaning device according to claim 1, wherein, The window cleaning device also includes: A first pump supplies cleaning fluid stored in the cleaning fluid tank to the spray nozzle; and A connecting pipe connects the cleaning fluid tank to the first pump. When the cleaning fluid tank is disposed inside the housing, the cleaning fluid tank is connected to the connecting pipe.

7. The window cleaning device according to claim 6, wherein, A connection port for connecting to the connecting pipe is provided on the rear surface of the cleaning fluid tank.

8. The window cleaning device according to claim 1, wherein, The window cleaning device includes a display that provides information about the cleaning fluid tank. The display is disposed on the first surface of the housing.

9. A method for controlling a window cleaning device, comprising the following steps: Sensing the water level inside the cleaning fluid tank used to store the cleaning fluid; When the sensed cleaning fluid level is below the set height, a cleaning fluid replenishment notification is provided; and The window is sensed to be open, causing the window cleaning device to move to a different location.

10. A window cleaning device comprising: The housing includes a first surface facing the window; A cleaning fluid tank, which is detachably disposed in the housing, stores the cleaning fluid supplied by a spray nozzle; A connecting pipe that supplies the cleaning fluid stored in the cleaning fluid tank to the spray nozzle; and A pipe connector, disposed at one end of the connecting pipe and connected to the cleaning fluid tank. The cleaning fluid tank includes a connection port that connects to the pipe connector. When the cleaning fluid tank is disposed inside the housing, the connection port is connected to the pipe connector.

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