A surface cleaning device and a control method therefor

Abstract

The embodiment of the present application discloses a surface cleaning device and a control method thereof. The surface cleaning device comprises: a cleaning liquid containing box, which is used for containing cleaning liquid; a cleaning liquid output module, which is communicated with the cleaning liquid containing box through a liquid conveying pipe, the cleaning liquid in the cleaning liquid containing box is used for being conveyed to the cleaning liquid output module through the liquid conveying pipe, and the cleaning liquid output module is used for outputting cleaning liquid to a surface to be cleaned; and a first liquid detection module, which is connected to one end of the liquid conveying pipe close to the cleaning liquid output module, and is used for detecting whether there is cleaning liquid in the liquid conveying pipe. In the embodiment of the present application, the cleaning liquid in the liquid conveying pipe is detected through the first liquid detection module, and a more accurate detection result can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning, in particular to a surface cleaning device and a control method thereof. BACKGROUND

[0002] A surface cleaning device is a household appliance that can provide a cleaning function, such as a window cleaning robot, a floor cleaning robot, and the like. The surface cleaning device can be a self-moving surface cleaning device, or a non-self-moving surface cleaning device that needs to be dragged or held by a user. In order to improve the cleaning effect on a surface to be cleaned, a cleaning liquid container can be provided on the surface cleaning device. The cleaning liquid container is in communication with a cleaning liquid output module (for example, a spray head, an ultrasonic spray sheet, or a water droplet hole) through a liquid delivery pipe. The cleaning liquid container is used to contain cleaning liquid (water, or a water solution added with cleaning agent or disinfectant, etc.). During operation, the cleaning liquid output module can output the cleaning liquid to the surface to be cleaned, thereby improving the cleaning effect on the surface to be cleaned. In addition, a liquid detection module is usually arranged in the cleaning liquid container. The liquid detection module can be used to detect whether the cleaning liquid container contains cleaning liquid in real time.

[0003] However, when the cleaning liquid container contains cleaning liquid, the liquid delivery pipe can not contain cleaning liquid. For example, when the surface cleaning device is used for the first time or has not been used for a long time, the cleaning liquid container contains cleaning liquid, but the liquid delivery pipe does not contain cleaning liquid. Alternatively, when the cleaning liquid container does not contain cleaning liquid, the liquid delivery pipe can contain cleaning liquid. For example, when the cleaning liquid in the cleaning liquid container is exhausted, the liquid delivery pipe can still contain residual cleaning liquid. Therefore, the detection result of the cleaning liquid in the prior art is not accurate. SUMMARY

[0004] The present application provides a surface cleaning device and a control method thereof, so as to solve the problem of inaccurate detection result of cleaning liquid in the prior art.

[0005] In a first aspect, the present application provides a surface cleaning device, comprising:

[0006] a cleaning liquid container, the cleaning liquid container being used to contain cleaning liquid;

[0007] a cleaning liquid output module, the cleaning liquid output module being in communication with the cleaning liquid container through a liquid delivery pipe, the cleaning liquid in the cleaning liquid container being used to be delivered to the cleaning liquid output module through the liquid delivery pipe, and the cleaning liquid output module being used to output cleaning liquid to a surface to be cleaned;

[0008] a first liquid detection module, the first liquid detection module being connected to one end of the liquid delivery pipe close to the cleaning liquid output module, and the first liquid detection module being used to detect whether the liquid delivery pipe contains cleaning liquid.

[0009] In a possible implementation, the first liquid detection module comprises a photoelectric sensor, the photoelectric sensor comprises a light emitter and a light receiver, and the light emitter and the light receiver are arranged on two sides of the infusion tube respectively.

[0010] In a possible implementation, the photoelectric sensor comprises a groove-shaped body, the groove-shaped body is provided with a groove, the infusion tube is embedded in the groove, and the light emitter and the light receiver are arranged on two sides of the groove respectively.

[0011] In a possible implementation, the surface cleaning device further comprises:

[0012] A second liquid detection module is configured to detect whether cleaning liquid exists in the cleaning liquid accommodating box.

[0013] In a possible implementation, the surface cleaning device further comprises:

[0014] An alarm module is configured to output alarm information when the cleaning liquid does not exist in the infusion tube and / or the cleaning liquid does not exist in the cleaning liquid accommodating box.

[0015] In a possible implementation, the surface cleaning device further comprises:

[0016] A pump module, the cleaning liquid accommodating box is connected to the pump module through a first infusion tube, the pump module is connected to the cleaning liquid output module through a second infusion tube, the pump module is configured to provide power to transport the cleaning liquid in the cleaning liquid accommodating box to the cleaning liquid output module through the first infusion tube and the second infusion tube, and the first liquid detection module is connected to a corresponding position of the second infusion tube, and the first liquid detection module is configured to detect whether cleaning liquid exists in the second infusion tube.

[0017] In a possible implementation, the first liquid detection module is connected to one end of the second infusion tube close to the cleaning liquid output module.

[0018] In a second aspect, the embodiments of the present application provide a control method of a surface cleaning device. The surface cleaning device comprises a cleaning liquid accommodating tank configured to accommodate cleaning liquid; a cleaning liquid output module connected to the cleaning liquid accommodating tank through a liquid delivery pipe, the cleaning liquid in the cleaning liquid accommodating tank being configured to be delivered to the cleaning liquid output module through the liquid delivery pipe, and the cleaning liquid output module being configured to output cleaning liquid to a surface to be cleaned; a first liquid detection module configured to detect whether there is cleaning liquid in the liquid delivery pipe; and a second liquid detection module configured to detect whether there is cleaning liquid in the cleaning liquid accommodating tank. The method comprises:

[0019] detecting, by the first liquid detection module, whether there is cleaning liquid in the liquid delivery pipe, to obtain a first detection result;

[0020] detecting, by the second liquid detection module, whether there is cleaning liquid in the cleaning liquid accommodating tank, to obtain a second detection result;

[0021] judging, according to the first detection result and the second detection result, whether there is cleaning liquid in the surface cleaning device;

[0022] if it is judged that there is cleaning liquid in the surface cleaning device, controlling the surface cleaning device to perform a cleaning operation;

[0023] if it is judged that there is no cleaning liquid in the surface cleaning device, controlling the surface cleaning device to stop performing the cleaning operation.

[0024] In a possible implementation, the judging, according to the first detection result and the second detection result, whether there is cleaning liquid in the surface cleaning device comprises:

[0025] if the first detection result is that there is cleaning liquid in the liquid delivery pipe, or the second detection result is that there is cleaning liquid in the cleaning liquid accommodating tank, it is judged that there is cleaning liquid in the surface cleaning device;

[0026] if the first detection result is that there is no cleaning liquid in the liquid delivery pipe, and the second detection result is that there is no cleaning liquid in the cleaning liquid accommodating tank, it is judged that there is no cleaning liquid in the surface cleaning device.

[0027] In a possible implementation, the method further comprises:

[0028] if it is judged that there is no cleaning liquid in the surface cleaning device, outputting an alarm information, the alarm information being configured to prompt a user that there is no cleaning liquid in the surface cleaning device.

[0029] In the embodiment of the present application, the cleaning liquid in the infusion tube is detected by the first liquid detection module, so that a more accurate detection result can be obtained, and the surface cleaning device is prevented from being changed to dry cleaning when there is no cleaning liquid in the infusion tube, thereby affecting the cleaning effect; or the surface cleaning device is prevented from stopping cleaning operation when there is cleaning liquid in the infusion tube, thereby causing the cleaning liquid to be left in the infusion tube. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0031] Figure 1 A partial structure schematic diagram of a surface cleaning device provided by the embodiment of the present application is shown in the figure.

[0032] Figure 2 An exploded view of the partial structure shown in the figure is provided by the embodiment of the present application. Figure 1

[0033] Figure 3A A setting position schematic diagram of a first liquid detection module provided by the embodiment of the present application is shown in the figure.

[0034] Figure 3B A setting position schematic diagram of another first liquid detection module provided by the embodiment of the present application is shown in the figure.

[0035] Figure 4A An application scenario schematic diagram provided by the embodiment of the present application is shown in the figure.

[0036] Figure 4B Another application scenario schematic diagram provided by the embodiment of the present application is shown in the figure.

[0037] Figure 5A Another application scenario schematic diagram provided by the embodiment of the present application is shown in the figure.

[0038] Figure 5B Another application scenario schematic diagram provided by the embodiment of the present application is shown in the figure.

[0039] Figure 6 A control method flow schematic diagram of a surface cleaning device provided by the embodiment of the present application is shown in the figure.

[0040] Figure 7 A structure schematic diagram of a surface cleaning device provided by the embodiment of the present application is shown in the figure.

[0041] Figure 8 A structure schematic diagram of another surface cleaning device provided by the embodiment of the present application is shown in the figure. ​

[0042] Figure 9 Provided in the embodiments of this application Figure 8 Schematic diagram of the walking of the surface cleaning device shown.

[0043] The symbols in the figure are represented as follows: 100-surface cleaning device, 110-adsorption unit, 120-traveling unit, 130-first cleaning unit, 140-second cleaning unit, 150-link arm, 151-first pivot, 152-second pivot, 161-upper shell, 162-cleaning liquid storage box, 163-cleaning liquid output module, 164-infusion tube, 1641-first infusion tube, 1642-second infusion tube, 165-pump module, 166-first liquid detection module, 1661-groove, 1662-light transmitter, 1663-light receiver, 167-control module, 168-fixing buckle. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0045] The surface cleaning device involved in the embodiments of the present application may be a self-propelled surface cleaning device such as a window cleaning robot or a sweeping robot; or a non-self-propelled surface cleaning device that needs to be dragged or held by a user. The embodiments of the present application do not impose any specific restrictions on the product form.

[0046] See also Figure 1 , is a partial structural diagram of a surface cleaning device provided in an embodiment of the present application; see Figure 2 , provided in the embodiments of this application Figure 1 The exploded view of the local structure is shown in Figure 2. Figure 1 Combined with Figure 2 As shown, the surface cleaning device 100 includes an upper housing 161, which is a portion of the outer shell of the surface cleaning device 100. It is understood that the surface cleaning device 100 generally also includes a lower housing (not shown in the figure), and the upper housing 161 and the lower housing are buckled together to form an internal space of the surface cleaning device 100.

[0047] The upper shell 161 is provided with a cleaning liquid accommodating box 162 for accommodating cleaning liquid, which can be water or a water solution added with cleaning agent or disinfectant, etc. In a specific implementation, the cleaning liquid accommodating box 162 can be detachably fixed on the upper shell 161 by means of screws, buckles or interference fit, etc. so as to facilitate the disassembly and replacement of the cleaning liquid accommodating box 162.

[0048] The cleaning liquid accommodating box 162 comprises a liquid outlet, and the liquid outlet of the cleaning liquid accommodating box 162 is connected in communication with a liquid inlet of the cleaning liquid output module 163 through a liquid delivery pipe 164, so that the cleaning liquid in the cleaning liquid accommodating box 162 can be delivered to the cleaning liquid output module 163 through the liquid delivery pipe 164, and then output to the surface to be cleaned through the cleaning liquid output module 163, thereby improving the cleaning effect of the surface to be cleaned. In a specific implementation, the cleaning liquid output module 163 can be a spray head, an ultrasonic spray sheet or a water dripping hole, etc. and the present application does not make a specific limitation thereon.

[0049] In a possible implementation, the cleaning liquid output module 163 is connected to the side wall of the upper shell 161. Specifically, the cleaning liquid output module 163 penetrates through the side wall of the upper shell 161, so that the liquid outlet of the cleaning liquid output module 163 is located outside the upper shell 161, facilitating the spraying of cleaning liquid to the outside of the surface cleaning device 100; and the liquid inlet of the cleaning liquid output module 163 is located inside the upper shell 161, facilitating the connection with the liquid delivery pipe 164. In a specific implementation, the cleaning liquid output module 163 can be detachably connected to the upper shell 161 by means of screws, buckles or interference fit, etc. so as to facilitate the disassembly and replacement of the cleaning liquid output module 163.

[0050] It can be understood that when the cleaning liquid in the surface cleaning device 100 is exhausted, the surface cleaning device 100 needs to be controlled to stop the cleaning operation and remind the user to add cleaning liquid, so as to avoid the cleaning mode of the surface cleaning device 100 becoming dry cleaning, thereby affecting the cleaning effect.

[0051] In order to detect the cleaning liquid in the surface cleaning device 100, the prior art usually provides a liquid detection module (in order to distinguish from the liquid detection module provided outside the cleaning liquid accommodating box 162 below, the liquid detection module is referred to as a second liquid detection module) in the cleaning liquid accommodating box 162, and the second liquid detection module can be used to detect whether there is cleaning liquid in the cleaning liquid accommodating box 162 in real time.

[0052] However, when the cleaning liquid container 162 contains cleaning liquid, the liquid delivery pipe 164 can not contain cleaning liquid. For example, when the surface cleaning device 100 is used for the first time or is not used for a long time, the cleaning liquid container 162 contains cleaning liquid, but the liquid delivery pipe 164 does not contain cleaning liquid. At this time, if the surface cleaning device 100 is controlled to perform a cleaning operation, the cleaning mode of the surface cleaning device 100 will become dry cleaning, and the cleaning effect will be poor. Or, when the cleaning liquid container 162 does not contain cleaning liquid, the liquid delivery pipe 164 can contain cleaning liquid. For example, when the cleaning liquid in the cleaning liquid container 162 is exhausted, there can still be residual cleaning liquid in the liquid delivery pipe 164. At this time, if the surface cleaning device 100 is controlled to stop cleaning, the residual cleaning liquid will cause problems such as odor if not cleaned for a long time.

[0053] To solve the above problems, an embodiment of the present application provides a liquid detection module (for the sake of distinction from the liquid detection module provided in the cleaning liquid container 162, the liquid detection module is referred to as a first liquid detection module 166) outside the cleaning liquid container 162, which is used to detect whether the liquid delivery pipe 164 contains cleaning liquid, so as to obtain a more accurate detection result. For example, when the surface cleaning device 100 is used for the first time or is not used for a long time, the cleaning liquid container 162 contains cleaning liquid, but the liquid delivery pipe 164 does not contain cleaning liquid. At this time, the detection result of the first liquid detection module 166 is that the liquid delivery pipe 164 does not contain cleaning liquid, and the surface cleaning device 100 can be controlled to stop performing a cleaning operation. For another example, when the cleaning liquid in the cleaning liquid container 162 is exhausted, there can still be residual cleaning liquid in the liquid delivery pipe 164. At this time, the detection result of the first liquid detection module 166 is that the liquid delivery pipe 164 contains cleaning liquid, and the surface cleaning device 100 can be controlled to continue performing a cleaning operation until the cleaning liquid in the liquid delivery pipe 164 is exhausted, so as to avoid the presence of residual cleaning liquid in the liquid delivery pipe 164.

[0054] In actual application, the liquid delivery pipe 164 has a certain length, and the setting position of the first liquid detection module 166 determines the detection position of the liquid delivery pipe 164.

[0055] Referring to Figure 3A FIG. 1 is a schematic diagram of a setting position of a first liquid detection module provided by an embodiment of the present application. As shown in Figure 3A FIG. 1, the first liquid detection module 166 is arranged at position A, and the first liquid detection module 166 can detect whether the liquid delivery pipe 164 contains cleaning liquid at position A. Referring to Figure 3B FIG. 2 is another schematic diagram of a setting position of a first liquid detection module provided by an embodiment of the present application. As shown in Figure 3BAs shown, the first liquid detection module 166 is arranged at position B, and thus the first liquid detection module 166 can detect whether there is cleaning liquid at position B of the liquid delivery pipe 164.

[0056] It can be understood that the closer the arrangement position of the first liquid detection module 166 to the cleaning liquid output module 163, the more accurate the detection result of the first liquid detection module 166. In other words, the closer the arrangement position of the first liquid detection module 166 to the cleaning liquid output module 163, the more accurately the detection result of the first liquid detection module 166 reflects whether the cleaning liquid output module 163 can output cleaning liquid.

[0057] Referring to Figure 4A , an application scenario provided by an embodiment of the present application is shown; referring to Figure 4B , another application scenario provided by an embodiment of the present application is shown. In Figure 4A and Figure 4B , the application scenario is shown, in which one end of the liquid delivery pipe 164 close to the cleaning liquid containing tank 162 contains cleaning liquid, and the other end of the liquid delivery pipe 164 close to the cleaning liquid output module 163 contains air (no cleaning liquid).

[0058] In Figure 4A , the first liquid detection module 166 is arranged at position A, and thus, since the liquid delivery pipe 164 at position A contains air, the detection result of the first liquid detection module 166 is that there is no cleaning liquid in the liquid delivery pipe 164, and thus the surface cleaning device 100 can be controlled to stop performing the cleaning operation. It can be understood that, at this time, if the surface cleaning device 100 performs the cleaning operation, the cleaning liquid output module 163 cannot output cleaning liquid, and thus the detection result obtained by the first liquid detection module 166 is a correct detection result.

[0059] On the contrary, in Figure 4B , the first liquid detection module 166 is arranged at position B, and thus, since the liquid delivery pipe 164 at position B contains cleaning liquid, the detection result of the first liquid detection module 166 is that there is cleaning liquid in the liquid delivery pipe 164, and thus the surface cleaning device 100 can be controlled to perform the cleaning operation. However, at this time, if the surface cleaning device 100 performs the cleaning operation, the cleaning liquid output module 163 cannot output cleaning liquid (the air in the liquid delivery pipe 164 is emptied before the cleaning liquid can be output), and thus the detection result obtained by the first liquid detection module 166 is an incorrect detection result.

[0060] Referring to Figure 5A and Figure 5B , another application scenario provided by an embodiment of the present application is shown. In Figure 5A and Figure 5BIn the shown application scenario, the end of the infusion tube 164 close to the cleaning liquid accommodating box 162 is air (no cleaning liquid), and the end of the infusion tube 164 close to the cleaning liquid output module 163 is cleaning liquid.

[0061] In Figure 5A , the first liquid detection module 166 is arranged at position A, at this time, since the infusion tube 164 at position A is filled with cleaning liquid, the detection result of the first liquid detection module 166 is that the infusion tube 164 is filled with cleaning liquid, and thus the surface cleaning device 100 can be controlled to stop performing the cleaning operation. It can be understood that, at this time, if the surface cleaning device 100 performs the cleaning operation, the cleaning liquid output module 163 can output cleaning liquid, and thus the detection result obtained by the first liquid detection module 166 is a correct detection result.

[0062] On the contrary, in Figure 5B , the first liquid detection module 166 is arranged at position B, at this time, since the infusion tube 164 at position B is filled with air, the detection result of the first liquid detection module 166 is that the infusion tube 164 is not filled with cleaning liquid, and thus the surface cleaning device 100 can be controlled to stop performing the cleaning operation. However, at this time, if the surface cleaning device 100 performs the cleaning operation, the cleaning liquid output module 163 can output cleaning liquid, and thus the detection result obtained by the first liquid detection module 166 is an incorrect detection result.

[0063] In summary, the closer the arrangement position of the first liquid detection module 166 to the cleaning liquid output module 163, the more accurate the detection result of the first liquid detection module 166. Therefore, in the embodiment of the present application, the first liquid detection module 166 can be connected to the end of the infusion tube 164 close to the cleaning liquid output module 163, so as to obtain a more accurate detection result.

[0064] Please continue to refer to Figure 1 and Figure 2 , in a specific implementation, the first liquid detection module 166 can be implemented by using a photoelectric sensor. Specifically, the photoelectric sensor can include a light emitter 1662 and a light receiver 1663, and the light emitter 1662 and the light receiver 1663 are arranged on the two sides of the infusion tube 164 respectively. In operation, the light emitter 1662 emits light signals, and the light receiver 1663 receives the light signals. Since the transmittance of cleaning liquid and air is different, when the infusion tube 164 is filled with cleaning liquid and not filled with cleaning liquid, the light signals received by the light receiver 1663 are different, and thus it can be judged whether the infusion tube 164 is filled with cleaning liquid. In a specific implementation, the photoelectric sensor can be an optical coupler or a photoelectric opposite-acting switch, and the embodiment of the present application does not make a specific limitation on the type of selected components.

[0065] In order to facilitate installation, in a possible implementation, the photoelectric sensor can be arranged as a slot type photoelectric sensor. Specifically, the slot type photoelectric sensor includes a slot type main body, a groove 1661 is arranged on the slot type main body, and a light emitter 1662 and a light receiver 1663 are arranged on two sides of the groove 1661 respectively. When installed, the infusion tube 164 is embedded in the groove 1661, that is, the light emitter 1662 and the light receiver 1663 can be arranged on two sides of the infusion tube 164, and installation is convenient.

[0066] In a specific implementation, the first liquid detection module 166 can be connected to the upper shell 161 in a detachable manner such as screwing, buckling or interference fit, so as to facilitate disassembly and replacement of the first liquid detection module 166. When the first liquid detection module 166 is connected by buckling, a fixed buckle 168 matched with the shape / profile of the first liquid detection module 166 can be arranged on the upper shell 161, and the first liquid detection module 166 can be embedded in the fixed buckle 168 to fix the first liquid detection module 166. It can be understood that when connected by buckling, the user can disassemble and replace the first liquid detection module 166 without the aid of other tools, which is more convenient.

[0067] In a possible implementation, the surface cleaning device 100 further includes a pump module 165, which can provide power to deliver the cleaning liquid in the cleaning liquid containing tank 162 to the cleaning liquid output module 163. For the sake of description, the infusion tube 164 between the cleaning liquid containing tank 162 and the pump module 165 is referred to as the first infusion tube 1641, and the infusion tube 164 between the pump module 165 and the cleaning liquid output module 163 is referred to as the second infusion tube 1642. In a specific implementation, the outlet of the cleaning liquid containing tank 162 is connected in communication with the inlet of the pump module 165 through the first infusion tube 1641, and the outlet of the pump module 165 is connected in communication with the inlet of the cleaning liquid output module 163 through the second infusion tube 1642, thereby realizing communication between the cleaning liquid containing tank 162 and the cleaning liquid output module 163. In the embodiment of the present application, the first liquid detection module 166 is connected at a position corresponding to the second infusion tube 1642, that is, the first liquid detection module 166 detects whether there is cleaning liquid in the second infusion tube 1642. It can be understood that the second infusion tube 1642 is closer to the cleaning liquid output module 163 than the first infusion tube 1641, and "connecting the first liquid detection module 166 at a position corresponding to the second infusion tube 1642" can realize the connection of the first liquid detection module 166 at the end of the infusion tube 164 close to the cleaning liquid output module 163 as described in the above embodiment.

[0068] Further, in order to obtain more accurate detection results, the first liquid detection module 166 can also be connected to the second infusion tube 1642 close to the end of the cleaning liquid output module 163. The specific working principle can be referred to the description of the above embodiment, and for the sake of brevity, it will not be repeated here.

[0069] In a possible implementation, the surface cleaning device 100 further comprises a second liquid detection module arranged in the cleaning liquid accommodating box 162, for detecting whether the cleaning liquid exists in the cleaning liquid accommodating box 162. That is, on the basis of the first liquid detection module 166, the second liquid detection module is newly added in the embodiment of the application, and through the cooperation of the first liquid detection module 166 and the second liquid detection module, more accurate detection results can be obtained, and flexible control of the surface cleaning device 100 can be realized. In the following, the method embodiment will be described in detail.

[0070] In a possible implementation, the surface cleaning device 100 further comprises an alarm module, which is used to output alarm information when the cleaning liquid does not exist in the infusion tube 164 and / or the cleaning liquid does not exist in the cleaning liquid accommodating box 162. In a specific implementation, the alarm module can be a buzzer, an indicator light, a display screen, etc. The human-computer interaction mode is not limited in the embodiment of the application.

[0071] In a possible implementation, the surface cleaning device 100 further comprises a control module 167, which is used to provide data storage and data processing functions. For example, the control module 167 can determine whether to control the surface cleaning device 100 to perform a cleaning operation according to the detection result of the first liquid detection module 166 and / or the second liquid detection module; or determine whether to output alarm information according to the detection result of the first liquid detection module 166 and / or the second liquid detection module. In a specific implementation, the control module 167 can include a processor, a memory, etc. or the control module 167 is realized by a microcontroller unit (MCU). The specific type of the control module 167 and the setting position of the control module 167 on the surface cleaning device 100 are not limited in the embodiment of the application.

[0072] It should be noted that in the above embodiment, the cleaning liquid accommodating box 162, the cleaning liquid output module 163, the infusion tube 164, the pump module 165 and the first liquid detection module 166 are arranged on the upper shell 161. It can be understood that the skilled in the art can arrange part or all of the above functional units on the lower shell according to the space limitation inside the surface cleaning device 100, which should fall within the protection scope of the application.

[0073] Corresponding to the surface cleaning device 100 described above, the embodiments of the present application also provide a control method of a surface cleaning device 100.

[0074] Referring to Figure 6 A flowchart of a control method of a surface cleaning device is provided in the embodiments of the present application. The method can be applied to the surface cleaning device 100 of the above-described embodiments. It should be noted that when the method is used, the first liquid detection module 166 in the surface cleaning device 100 can also not be arranged at the end of the liquid delivery pipe 164 close to the cleaning liquid output module 163. For example, when the first liquid detection module 166 in the surface cleaning device 100 is arranged at the end of the liquid delivery pipe 164 close to the cleaning liquid containing tank 162, it can still be applied to the method embodiments. As shown in Figure 6 The method mainly includes the following steps.

[0075] Step S601: detecting whether there is cleaning liquid in the liquid delivery pipe by the first liquid detection module, and obtaining a first detection result.

[0076] It can be understood that the first liquid detection module 166 is used to detect whether there is cleaning liquid in the liquid delivery pipe 164. In order to facilitate the distinction, the detection result of the first liquid detection module 166 is referred to as the first detection result. The first detection result can include two cases: there is cleaning liquid in the liquid delivery pipe 164 or there is no cleaning liquid in the liquid delivery pipe 164.

[0077] Step S602: detecting whether there is cleaning liquid in the cleaning liquid containing tank by the second liquid detection module, and obtaining a second detection result.

[0078] It can be understood that the second liquid detection module is used to detect whether there is cleaning liquid in the cleaning liquid containing tank 162. In order to facilitate the distinction, the detection result of the second liquid detection module is referred to as the second detection result. The second detection result can include two cases: there is cleaning liquid in the cleaning liquid containing tank 162 or there is no cleaning liquid in the cleaning liquid containing tank 162.

[0079] Step S603: judging whether there is cleaning liquid in the surface cleaning device according to the first detection result and the second detection result.

[0080] Specifically, if the first detection result is that there is cleaning liquid in the liquid delivery pipe 164, or the second detection result is that there is cleaning liquid in the cleaning liquid containing tank 162, it is judged that there is cleaning liquid in the surface cleaning device 100. If the first detection result is that there is no cleaning liquid in the liquid delivery pipe 164, and the second detection result is that there is no cleaning liquid in the cleaning liquid containing tank 162, it is judged that there is no cleaning liquid in the surface cleaning device 100. The comparison relationship between the first detection result, the second detection result and the comprehensive judgment result is shown in Table 1.

[0081] Table 1:

[0082]

[0083] Step S604: If it is judged that the cleaning liquid exists in the surface cleaning device, the surface cleaning device is controlled to perform the cleaning operation.

[0084] As shown in Table 1, when it is judged that the cleaning liquid exists in the surface cleaning device 100, there are three cases.

[0085] First: the cleaning liquid exists in the liquid delivery pipe 164, and the cleaning liquid exists in the cleaning liquid containing box 162.

[0086] It can be understood that when the cleaning liquid exists in the liquid delivery pipe 164 and the cleaning liquid containing box 162, the cleaning liquid output module 163 can output the cleaning liquid when the surface cleaning device 100 performs the cleaning operation. Therefore, in this case, the surface cleaning device 100 can be controlled to perform the cleaning operation.

[0087] Second: the cleaning liquid exists in the liquid delivery pipe 164, and the cleaning liquid does not exist in the cleaning liquid containing box 162.

[0088] For example, the cleaning liquid in the cleaning liquid containing box 162 is used up, but the cleaning liquid remains in the liquid delivery pipe 164. At this time, the surface cleaning device 100 is controlled to perform the cleaning operation, the cleaning liquid output module 163 can output the cleaning liquid (i.e. the surface cleaning device 100 can perform the normal cleaning operation), and it can be ensured that the cleaning liquid in the liquid delivery pipe 164 is used up, avoiding the existence of the cleaning liquid remaining in the liquid delivery pipe 164.

[0089] Third: the cleaning liquid does not exist in the liquid delivery pipe 164, and the cleaning liquid exists in the cleaning liquid containing box 162.

[0090] For example, the surface cleaning device 100 is used for the first time, and the cleaning liquid in the cleaning liquid containing box 162 has not been delivered to the liquid delivery pipe 164, resulting in the absence of the cleaning liquid in the liquid delivery pipe 164; or the surface cleaning device 100 has not been used for a long time, and the cleaning liquid in the liquid delivery pipe 164 evaporates or flows back to the cleaning liquid containing box 162, resulting in the absence of the cleaning liquid in the liquid delivery pipe 164. At this time, the surface cleaning device 100 is controlled to perform the cleaning operation, although the cleaning liquid output module 163 will not output the cleaning liquid at the initial time, but the cleaning liquid can be delivered from the cleaning liquid containing box 162 to the cleaning liquid output module 163 after the surface cleaning device 100 runs for a short time, and then the normal cleaning operation can be performed. On the contrary, if it is judged that the cleaning liquid does not exist in the surface cleaning device 100 in this case, an alarm information is output to remind the user to add the cleaning liquid, which will obviously cause a misjudgment and affect the user experience.

[0091] In a possible implementation, when the cleaning liquid does not exist in the infusion tube 164 and the cleaning liquid exists in the cleaning liquid accommodating box 162, the pump module 165 can be first controlled to run for a preset time T, and then the cleaning operation is started. During the preset time T of running of the pump module 165, the pump module 165 can deliver the cleaning liquid from the cleaning liquid accommodating box 162 to the cleaning liquid output module 163, so that the cleaning liquid output module 163 can output the cleaning liquid when the surface cleaning device 100 performs the cleaning operation. Since the power of the pump module 165 and the length of the infusion tube 164 are determined, the time for delivering the cleaning liquid from the cleaning liquid accommodating box 162 to the cleaning liquid output module 163 after the pump module 165 starts to run can be determined through multiple tests, and then the preset time T can be determined.

[0092] In a possible implementation, when the cleaning liquid does not exist in the infusion tube 164 and the cleaning liquid exists in the cleaning liquid accommodating box 162, the pump module 165 can be first controlled to run. When it is judged that the cleaning liquid exists in the infusion tube 164, the cleaning operation is started, so that the cleaning liquid output module 163 can output the cleaning liquid when the surface cleaning device 100 performs the cleaning operation.

[0093] Step S605: If it is judged that the cleaning liquid does not exist in the surface cleaning device, the surface cleaning device is controlled to stop performing the cleaning operation.

[0094] As shown in Table 1, when it is judged that the cleaning liquid does not exist in the surface cleaning device 100, only the following case exists: the cleaning liquid does not exist in the infusion tube 164 and the cleaning liquid does not exist in the cleaning liquid accommodating box 162. In this case, it is indicated that the cleaning liquid in the surface cleaning device 100 has been exhausted, and then the surface cleaning device 100 needs to be controlled to stop performing the cleaning operation, so as to avoid that the surface cleaning device 100 processes the dry cleaning mode for a long time and affects the cleaning effect.

[0095] In a possible implementation, when it is judged that the cleaning liquid does not exist in the surface cleaning device 100, alarm information can also be output to prompt the user to add the cleaning liquid.

[0096] In the embodiments of the present application, the surface cleaning device 100 is controlled in combination with the cleaning liquid states in the cleaning liquid accommodating box 162 and the infusion tube 164, which is more in line with the actual application scene and avoids causing misjudgment and affecting the cleaning effect.

[0097] It should be noted that the embodiments of the present application do not limit the product form of the surface cleaning device 100. In order to facilitate understanding, the working principle of the surface cleaning device 100 will be briefly introduced in combination with two different product forms.

[0098] The surface cleaning device one:

[0099] Referring toFigure 7 Fig. 1 is a schematic view of a surface cleaning device according to an embodiment of the present application. Figure 7 As shown in Fig. 1, the surface cleaning device comprises a main body, and a suction unit 110 is arranged at the bottom of the main body. The suction unit 110 can be used to adsorb the surface cleaning device to a surface to be cleaned. Specifically, the suction unit 110 can be a cavity arranged at the bottom of the main body. The cavity is used to define a sealed space with the surface to be cleaned (for example, a glass surface). When a negative pressure is generated in the sealed space, the surface cleaning device is adsorbed to the surface to be cleaned.

[0100] A traveling unit 120 is arranged at the bottom of the main body. The traveling unit 120 is used to drive the surface cleaning device to travel on the surface to be cleaned. Specifically, the traveling unit 120 can be a wheel-type traveling unit or a track-type traveling unit. It should be understood that a driving unit should also be arranged on the main body. The driving unit can be used to drive the traveling unit 120 to work, so as to drive the surface cleaning device to travel on the surface to be cleaned.

[0101] It should be noted that, Figure 7 The above is only an exemplary description of the surface cleaning device according to the embodiments of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0102] For example, in a possible implementation, the bottom of the main body is further provided with a cleaning unit. When the surface cleaning device travels on the surface to be cleaned, the cleaning unit can be used to clean the surface to be cleaned. Specifically, the cleaning unit can be a roller brush or a wiping unit. The wiping unit can be a sponge, cloth or paper.

[0103] In a possible implementation, a vacuum unit is arranged on the main body. The vacuum unit is used to generate a negative pressure in the suction unit 110. Specifically, the vacuum unit can be a pump or a fan.

[0104] Fig. 2 is a schematic view of another surface cleaning device according to an embodiment of the present application.

[0105] Referring to Figure 8 Fig. 2 is a schematic view of another surface cleaning device according to an embodiment of the present application. Figure 8As shown, the self-moving cleaning device comprises a first cleaning unit 130, the first cleaning unit 130 is used to define a first space with the surface to be cleaned, when negative pressure is generated in the first space, the first cleaning unit 130 can be adsorbed on the surface to be cleaned; a second cleaning unit 140, the second cleaning unit 140 is used to define a second space with the surface to be cleaned, when negative pressure is generated in the second space, the second cleaning unit 140 can be adsorbed on the surface to be cleaned; a connecting rod arm 150, the first end of the connecting rod arm 150 is connected with the first cleaning unit 130 through a first pivot 151, the second end of the connecting rod arm 150 is connected with the second cleaning unit 140 through a second pivot 152; a driving unit, used to drive the first cleaning unit 130 to rotate relative to the second cleaning unit 140, and drive the second cleaning unit 140 to rotate relative to the first cleaning unit 130, and then drive the self-moving cleaning device to walk on the surface to be cleaned. It can be understood that in this embodiment, the first cleaning unit 130 and the second cleaning unit 140 simultaneously correspond to the walking unit of the surface cleaning device.

[0106] Referring to Figure 9 , the surface cleaning device provided by the embodiment of the present application Figure 8 The walking schematic diagram of the surface cleaning device is shown. As Figure 9 As shown, in the initial position, the first cleaning unit 130 is located at position P1, and the second cleaning unit 140 is located at position P2; the second cleaning unit 140 is controlled to be fixed, and the first cleaning unit 130 rotates relative to the second cleaning unit 140 along direction T1, and the first cleaning unit 130 reaches position P3; the first cleaning unit 130 is controlled to be fixed, and the second cleaning unit 140 rotates relative to the first cleaning unit 130 along direction T2, and the second cleaning unit 140 reaches position P4. By analogy, the first cleaning unit 130 and the second cleaning unit 140 walk alternately, and the walking of the surface cleaning device on the surface to be cleaned is realized.

[0107] It should be pointed out that, Figure 8 This is only an exemplary description of the surface cleaning device by the embodiment of the present application, and should not be regarded as a limitation on the protection scope of the present application.

[0108] For example, in a possible implementation, the surface cleaning device further comprises a vacuum unit, used to communicate the first space and the second space, so that the first space and the second space generate negative pressure, and then the first cleaning unit 130 and the second cleaning unit 140 are adsorbed on the surface to be cleaned.

[0109] In a possible implementation, the vacuum unit includes a first vacuum device and a second vacuum device. The first vacuum device is configured to communicate with the first space so that the first space generates negative pressure, and the second vacuum device is configured to communicate with the second space so that the second space generates negative pressure. That is, two independent vacuum devices are respectively arranged to control the negative pressure state of the first space and the second space.

[0110] In a possible implementation, the vacuum unit includes a first air valve, a second air valve and a third vacuum device. Specifically, the first space is communicated through the first air valve, and the second space is communicated through the second air valve. When the first air valve is opened, the third vacuum device is communicated with the first space so that the first space generates negative pressure. When the second air valve is opened, the third vacuum device is communicated with the second space so that the second space generates negative pressure. That is, in this implementation, one vacuum device is used to control the negative pressure state of the first space and the second space.

[0111] The vacuum device involved in the embodiments of the present application can be a vacuum pump or a fan, and the embodiments of the present application do not make specific limitation thereto.

[0112] In a possible implementation, the driving unit includes a first driving device and a second driving device. The first driving device is configured to drive the first cleaning unit 130 to rotate relative to the connecting rod arm 150, and the second driving device is configured to drive the second cleaning unit 140 to rotate relative to the connecting rod arm 150. That is, two independent driving devices are respectively arranged to independently drive the rotation of the first cleaning unit 130 and the second cleaning unit 140.

[0113] In a possible implementation, the driving unit includes a first transmission device, a second transmission device and a third driving device. Specifically, the first transmission device is connected with the first cleaning unit 130 and is configured to drive the first cleaning unit 130 to rotate relative to the connecting rod arm 150 through the third driving device. The second transmission device is connected with the second cleaning unit 140 and is configured to drive the second cleaning unit 140 to rotate relative to the connecting rod arm 150 through the third driving device. That is, in this implementation, one driving device can be used to drive the rotation of the first cleaning unit 130 and the second cleaning unit 140.

[0114] The driving device involved in the embodiments of the present application can be a motor or other power device, and the embodiments of the present application do not make specific limitation thereto.

[0115] In a possible implementation, the first cleaning unit 130 and the second cleaning unit 140 can be sponges, cloths, or paper, etc. When the first cleaning unit 130 and the second cleaning unit 140 move relative to the surface to be cleaned, the surface to be cleaned can be wiped to remove dust, stains, etc. on the surface to be cleaned.

[0116] In a possible implementation, Figure 7 and Figure 8 The surface cleaning device shown in the figure can be a double-sided cleaning device, which includes a master and a slave, and the master and the slave are attracted to both sides of the surface to be cleaned by magnetic force. It can be understood that when the surface cleaning device is a double-sided cleaning device, the bottom of the surface cleaning device can not be provided with an adsorption unit or a space for generating negative pressure.

[0117] It should be noted that, Figure 7 and Figure 8 are only exemplary descriptions of the surface cleaning device by the embodiments of the present application, and the surface cleaning device can also have other product forms, which are not specifically limited by the embodiments of the present application.

[0118] It should be noted that, in the present document, the terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or device including the element.

[0119] The above is only a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications of these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0120] In the present specification, the same or similar parts among various embodiments can be referred to each other. In particular, for the terminal embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant part can be referred to the description in the method embodiment.

[0121] The above-described embodiments of the application are not intended to limit the scope of the application.

Claims

1. A surface cleaning device, characterized in that: include: A cleaning liquid storage tank, the cleaning liquid storage tank is used to store cleaning liquid; a cleaning liquid output module, the cleaning liquid output module being connected to the cleaning liquid storage tank via a liquid infusion tube, the cleaning liquid in the cleaning liquid storage tank being used to be transported to the cleaning liquid output module via the liquid infusion tube, and the cleaning liquid output module being used to output the cleaning liquid to the surface to be cleaned; a first liquid detection module, the first liquid detection module being connected to one end of the infusion tube close to the cleaning liquid output module, the first liquid detection module being used to detect whether there is cleaning liquid in the infusion tube and obtain a first detection result; a second liquid detection module, the second liquid detection module being used to detect whether there is cleaning liquid in the cleaning liquid containing box and obtain a second detection result; The first detection result and the second detection result are used together to determine whether there is cleaning liquid in the surface cleaning device and to control the surface cleaning device to perform or stop the cleaning operation; wherein, if any one of the first detection result and the second detection result is that there is cleaning liquid, it is determined that there is cleaning liquid in the surface cleaning device, and the surface cleaning device is controlled to perform the cleaning operation, wherein, if the first detection result is that there is no cleaning liquid and the second detection result is that there is cleaning liquid, the pump module is first controlled to transport the cleaning liquid from the cleaning liquid storage tank to the cleaning liquid output module, and then the surface cleaning device is controlled to perform the cleaning operation; if both the first detection result and the second detection result are that there is no cleaning liquid, it is determined that there is no cleaning liquid in the surface cleaning device, and the surface cleaning device is controlled to stop performing the cleaning operation.

2. The surface cleaning device according to claim 1, wherein The first liquid detection module includes a photoelectric sensor, which includes a light emitter and a light receiver. The light emitter and the light receiver are respectively arranged on both sides of the infusion tube.

3. The surface cleaning device according to claim 2, wherein: The photoelectric sensor comprises a groove-shaped body, the groove-shaped body is provided with a groove, the infusion tube is embedded in the groove, and the light emitter and the light receiver are respectively arranged on both sides of the groove.

4. The surface cleaning device according to claim 1, wherein The surface cleaning apparatus further comprises: An alarm module is configured to output an alarm message when the cleaning liquid does not exist in the infusion tube and / or the cleaning liquid storage box does not contain the cleaning liquid.

5. The surface cleaning device according to claim 1, wherein The surface cleaning apparatus further comprises: The pump module comprises a cleaning liquid storage tank connected to the pump module through a first infusion tube, and the pump module is connected to the cleaning liquid output module through a second infusion tube. The pump module is used to provide power to transport the cleaning liquid in the cleaning liquid storage tank to the cleaning liquid output module through the first infusion tube and the second infusion tube. The first liquid detection module is connected to the corresponding position of the second infusion tube, and the first liquid detection module is used to detect whether there is cleaning liquid in the second infusion tube.

6. The surface cleaning device according to claim 5, characterized in that The first liquid detection module is connected to one end of the second liquid infusion tube close to the cleaning liquid output module.

7. A method for controlling a surface cleaning device, characterized in that: The surface cleaning device includes a cleaning liquid storage tank, the cleaning liquid storage tank being used to store cleaning liquid; a cleaning liquid output module, the cleaning liquid output module being connected to the cleaning liquid storage tank via a liquid infusion tube, the cleaning liquid in the cleaning liquid storage tank being used to be transported to the cleaning liquid output module via the liquid infusion tube, and the cleaning liquid output module being used to output the cleaning liquid to the surface to be cleaned; and a first liquid detection module, the first liquid detection module being used to detect whether there is cleaning liquid in the liquid infusion tube; A second liquid detection module is used to detect whether there is cleaning liquid in the cleaning liquid storage box; the method includes: detecting, by the first liquid detection module, whether there is cleaning liquid in the infusion tube, and obtaining a first detection result; detecting, by the second liquid detection module, whether cleaning liquid exists in the cleaning liquid containing box, and obtaining a second detection result; determining whether cleaning liquid is present in the surface cleaning device based on the first detection result and the second detection result; If either the first detection result or the second detection result indicates that cleaning liquid is present, it is determined that cleaning liquid is present in the surface cleaning device, and the surface cleaning device is controlled to perform a cleaning operation; wherein, if the first detection result indicates that cleaning liquid is not present and the second detection result indicates that cleaning liquid is present, the pump module is first controlled to transport the cleaning liquid from the cleaning liquid storage tank to the cleaning liquid output module, and then the surface cleaning device is controlled to perform a cleaning operation; If both the first detection result and the second detection result indicate that no cleaning liquid exists, it is determined that no cleaning liquid exists in the surface cleaning device, and the surface cleaning device is controlled to stop performing the cleaning operation.

8. The method according to claim 7, characterized in that The determining whether there is cleaning liquid in the surface cleaning device according to the first detection result and the second detection result includes: If the first detection result indicates that cleaning liquid exists in the liquid delivery tube, or if the second detection result indicates that cleaning liquid exists in the cleaning liquid storage tank, then it is determined that cleaning liquid exists in the surface cleaning device; If the first detection result is that no cleaning liquid exists in the liquid delivery tube, and the second detection result is that no cleaning liquid exists in the cleaning liquid storage tank, it is determined that no cleaning liquid exists in the surface cleaning device.

9. The method according to claim 7, characterized in that The method further comprises: If it is determined that no cleaning liquid exists in the surface cleaning device, an alarm message is output, where the alarm message is used to remind the user that no cleaning liquid exists in the surface cleaning device.

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