CN216483352U

CN216483352U - Cleaning equipment and liquid storage barrel

Info

Publication number: CN216483352U
Application number: CN202122193007.8U
Authority: CN
Inventors: 孙建
Original assignee: Tineco Intelligent Technology Co Ltd
Current assignee: Tineco Intelligent Technology Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-05-10
Anticipated expiration: 2031-09-10

Abstract

The embodiment of the application provides a cleaning device and stock solution bucket, in this application embodiment, through set up light signal transmitter and light signal receiver on the cleaning device fuselage to and the position setting that corresponds on the stock solution bucket extends to the first light conductor and the second light conductor of certain length in to the staving, can be based on the principle of light signal reflection and refraction, confirm whether the tip of first light conductor and second light conductor has liquid, and then confirm the liquid level height in the staving, in order to carry out corresponding control. The liquid storage barrel and the cleaning equipment are stable and reliable, and the detection result is more accurate.

Description

Cleaning equipment and liquid storage barrel

Technical Field

The application relates to the technical field of machinery, especially, relate to a cleaning device and stock solution bucket.

Background

With the development of technology, in order to facilitate people's lives, various movable cleaning devices, such as a washing machine, are brought into people's lives. Most of the cleaning machines used at present collect sewage of the cleaning machines through a recovery bucket (also called a sewage bucket), and when the liquid level of the sewage in the recovery bucket rises to a certain height (also called a full water state), if the whole machine is not controlled to stop working, the continuously rising sewage can possibly enter the machine body to damage a motor. Therefore, it is necessary to detect the liquid level of the sewage in the recycling bin and timely control the whole machine to stop working.

In the existing detection mode, the liquid level in the recovery barrel is usually detected by adopting modes such as capacitance induction or electrode method resistance, but due to the problems of parasitic capacitance, water quality interference, component aging and the like, a certain error exists in the result of detecting the liquid level by adopting the modes such as the capacitance induction or the electrode method resistance, and the accuracy is low.

Disclosure of Invention

In view of the above, embodiments of the present application are proposed in order to provide a cleaning apparatus and a liquid tank that solve the above problems to promote accurate determination of liquid level detection.

An embodiment of the present application provides a cleaning device, includes: the liquid level detection device comprises a machine body, a liquid storage barrel and a liquid level detection device; the liquid storage barrel comprises a barrel cover and a barrel body, and the liquid level detection device comprises a photoelectric sensor assembly arranged on the body and a light guide assembly arranged on the barrel cover; wherein the photosensor assembly comprises an optical signal transmitter and an optical signal receiver which are isolated from each other; the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel body; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal transmitter and the optical signal receiver; the tail ends of the first light guide body and the second light guide body are respectively a first inclined surface and a second inclined surface, and the directions of the inclined surfaces of the first inclined surface and the second inclined surface are opposite in the same horizontal direction, so that the light signals emitted into the first light guide body by the light signal emitter are reflected into the second light guide body and transmitted to the light signal receiver by the second light guide body.

The embodiment of the application provides a stock solution bucket, includes: a barrel cover and a barrel body; the barrel cover is provided with a light guide assembly in the liquid level detection device, the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel body; the tail ends of the first light guide body and the second light guide body are respectively a first inclined surface and a second inclined surface, and the inclined surface directions of the first inclined surface and the second inclined surface are opposite in the same horizontal direction; the liquid level detection device also comprises a photoelectric sensor assembly, wherein the photoelectric sensor assembly is arranged on a machine body or a barrel cover matched with the liquid storage barrel and comprises an optical signal transmitter and an optical signal receiver; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal emitter and the optical signal receiver and used for reflecting the optical signal incident into the first light guide body from the optical signal emitter into the second light guide body and transmitting the optical signal to the optical signal receiver through the second light guide body.

An embodiment of the present application provides a cleaning device, includes: the liquid level detection device comprises a machine body, a liquid storage barrel and a liquid level detection device; the machine body is provided with a photoelectric sensor assembly in the liquid level detection device, and the photoelectric sensor assembly comprises an optical signal transmitter and an optical signal receiver which are isolated from each other; the liquid level detection device also comprises a light guide assembly arranged on a liquid storage barrel matched with the machine body, wherein the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel body; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal emitter and the optical signal receiver and used for reflecting the optical signal incident into the first light guide body from the optical signal emitter into the second light guide body and transmitting the optical signal to the optical signal receiver through the second light guide body.

In this application embodiment, through set up light signal transmitter and light signal receiver on the cleaning device fuselage to and the position setting that corresponds on the stock solution bucket extends to the first light guide body and the second light guide body of certain length in the staving, can be based on the principle of light signal reflection and refraction, confirm whether the tip of first light guide body and second light guide body has liquid, and then confirm the liquid level height in the staving, in order to carry out corresponding control. Compared with the mode of detecting the liquid level height by adopting capacitance induction or electrode resistance and the like, the liquid level detection is carried out by the optical signal without interference of factors such as parasitic capacitance, water quality or components and the like, and the detection result is more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1a is a schematic structural diagram of a liquid level detection device according to an embodiment of the present disclosure;

FIG. 1b is a schematic structural diagram illustrating an operation principle of a liquid level detecting apparatus according to an embodiment of the present disclosure;

fig. 1c is a schematic structural diagram of bottom end slopes of two light guides of the liquid level detection apparatus provided in the embodiment of the present application;

fig. 1d is a driving circuit diagram of a photosensor assembly according to an embodiment of the present disclosure;

fig. 1e is a driving circuit diagram of a photosensor assembly with a follower circuit according to an embodiment of the present application;

FIG. 2a is a schematic structural diagram of a cleaning device with a liquid level detection device according to an embodiment of the present application;

FIG. 2b is a schematic structural diagram of another cleaning apparatus with a liquid level detection device according to an embodiment of the present application;

FIG. 2c is a schematic structural diagram of a liquid level detection apparatus with an electromagnetic induction device according to an embodiment of the present application;

fig. 2d is a driving circuit diagram of an electromagnetic induction device according to an embodiment of the present application;

FIG. 2e is a schematic structural diagram of a cleaning apparatus with a switch assembly according to an embodiment of the present disclosure;

FIG. 2f is a schematic structural diagram of a liquid level detection device with a switch assembly according to an embodiment of the present application;

fig. 2g is a schematic structural diagram of a micro switch provided in the embodiment of the present application;

fig. 2h is a driving circuit diagram corresponding to the micro switch provided in the embodiment of the present application;

fig. 2i is a front view of a liquid storage barrel according to an embodiment of the present disclosure;

fig. 3a is a side view of a liquid storage barrel according to an embodiment of the present application;

FIG. 3b is a front view of the liquid storage barrel shown in FIG. 3a according to an embodiment of the present disclosure;

FIG. 3c is a side view of another liquid storage barrel provided in the embodiments of the present application;

fig. 3d is a front view of the liquid storage barrel shown in fig. 3c according to the embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to solve the problem that the existing detection liquid level in the cleaning device is inaccurate, the embodiment of the application provides a liquid level detection device, fig. 1a is a schematic structural diagram of the liquid level detection device provided by the embodiment of the application, and as shown in fig. 1a, the liquid level detection device comprises a photoelectric sensor assembly 10 and a light guide assembly 20. As shown in fig. 1a, the photosensor assembly 10 includes an optical signal emitter 11 and an optical signal receiver 12, and the light guide assembly 20 includes a first light guide 21 and a second light guide 22, and the first light guide 21 is disposed in parallel with the second light guide 22. The optical signal transmitter 11 is configured to transmit an optical signal to the first light guide 21, and the optical signal receiver 12 is configured to receive an optical signal transmitted back from the second light guide 22; the first light guide 21 is used for receiving and guiding the optical signal emitted by the optical signal emitter 11 and reflecting the received optical signal to the second light guide 22, and the second light guide 22 is used for receiving the optical signal reflected by the first light guide 21 and guiding the optical signal to the optical signal receiver 12.

In the present embodiment, the ends of the first and second light guiding bodies 21 and 22 are respectively a first slope s1 and a second slope s2, and the slope directions of the first slope s1 and the second slope s2 are opposite in the same horizontal direction. As shown in fig. 1b, with respect to the horizontal plane of the bottom of the light guide assembly 20, the ends of the first inclined surface s1 and the second inclined surface s2 close to the horizontal plane are close to each other, and the ends far away from the horizontal plane are far away from each other, so that the first inclined surface s1 and the second inclined surface s2 and the two ends far away from each other form an inverted triangle. When an optical signal is incident on the first light guide 21 and irradiated onto the first inclined surface s1, it may be reflected onto the second inclined surface s2 of the second light guide 22 via the first inclined surface s1, and reflected again into the second light guide 22 via the second inclined surface s2, where the optical signal is conducted by the second light guide 22.

In the embodiment of the present application, the photosensor assembly 10 and the light guide assembly 20 are disposed opposite to each other, as shown in fig. 1a and 1b, the first light guide 21 and the second light guide 22 respectively face the light signal emitter 11 and the light signal emitter 11, so that the light signal emitted from the light signal emitter 11 can vertically enter the first light guide 21, and correspondingly, the light signal transmitted upward from the second light guide 22 can vertically enter the light signal receiver 12.

Fig. 1b is a schematic diagram illustrating a process in which an optical signal emitted from the optical signal emitter 11 is incident on the first light guide 21, reflected by the first inclined surface s1 and the second inclined surface s2, and transmitted to the optical signal receiver 12 by the second light guide 22, wherein the direction of the arrow is a transmission path of the optical signal. In an alternative embodiment, in order to ensure that the optical signal perpendicularly incident on the first light guide 21 can be reversed by 180 ° after being reflected by the first inclined surface s1 and the second inclined surface s2, a material with a critical angle of total reflection in contact with air of about 45 ° is preferred as the light guide member, so that the optical signal perpendicularly incident on the first light guide 21 can be almost totally reflected by the first inclined surface s1 and the second inclined surface s 2. As shown in fig. 1c, the first light guiding body 21 and the second light guiding body 22 are spaced apart from each other, and the extensions of the first inclined surface s1 and the second inclined surface s2 intersect to form an isosceles right triangle, that is, the lengths of AB and CD in fig. 1c are equal, the extensions of AB and CD intersect at E and are perpendicular, and the line connecting the extensions of AB and CD and AD forms an isosceles right triangle. Of course, in the case where it is ensured that AB and CD are perpendicular and the optical signal emitted by the optical signal emitter 11 can be reflected onto the second slope s2 through the first slope s1, AB and CD may not be equal. In another alternative embodiment, the first light guiding body 21 and the second light guiding body 22 are arranged adjacently, the ends of the first inclined surface s1 and the second inclined surface s2 intersect, i.e. B and C are identical, preferably ABD constitutes an isosceles right triangle.

It should be noted that, in the process of using the liquid level detection device for liquid level detection, in a scene where liquid in the liquid level to be detected is relatively pure, the first light guide 21 and the second light guide 22 are disposed adjacently, and the first light guide 21 and the second light guide 22 are disposed at intervals. For example, in a scene in which it is detected whether or not the water level of the water supply is reached when the water is supplied to the clear water tank, the present invention is applicable to a configuration in which the first light guide 21 and the second light guide 22 are disposed adjacent to each other, and also to a configuration in which the first light guide 21 and the second light guide 22 are disposed at an interval. In addition, in the case that the first light guide 21 and the second light guide 22 are arranged at intervals, the liquid level height of the liquid with foam can be detected, and specific detection mode can be referred to the following examples, which are not detailed herein.

In the optional embodiment of the present application, in the process of using the liquid level detection device for liquid level detection, the first light guide 21 and the second light guide 22 are responsible for extending into the liquid storage barrel 40 of the liquid level to be detected, and by means of the reflection effect of the two inclined planes on the light signal, the light signal incident into the first light guide 21 from the light signal emitter 11 can be reflected into the second light guide 22 and transmitted to the light signal receiver 12 through the second light guide 22. In the case that the liquid level in the liquid storage barrel 40 does not reach the first inclined surface s1 and the second inclined surface s2, the optical signal emitted by the optical signal emitter 11 firstly enters the first light guide body 21 and reaches the first inclined surface s1, the optical signal reflected by the first inclined surface s1 enters the second light guide body 22 through the first light guide body 21 and reaches the second inclined surface s2, is reflected into the second light guide body 22 on the second inclined surface s2, is guided upward in the second light guide body 22, and is finally transmitted to the optical signal receiver 12. When the optical signal reaches the first inclined surface s1 and the second inclined surface s2, most of the optical signal is reflected, only a small part of the optical signal is emitted and refracted, the attenuation of the optical signal is small in the whole process, and the intensity of the optical signal received by the optical signal receiver 12 is high.

As the liquid level rises, in the case where the liquid level reaches the first slope s1 and the second slope s2, the light signal emitted by the light signal emitter 11 first enters the first light guiding body 21, and when the light signal reaches the first slope s1, a part of the light signal is reflected on the first slope s1 and a part of the light signal is refracted because it is no longer air but liquid in contact with the first slope s 1. When the optical signal reflected by the first inclined surface s1 enters the second light guiding body 22 and reaches the second inclined surface s2, a part of the optical signal is refracted, so that the optical signal reflected and transmitted to the optical signal receiver 12 is very little or almost no, the attenuation of the optical signal is large in the whole process, and the intensity of the optical signal received by the optical signal receiver 12 is weak.

Based on the principle that the light signal is reflected and refracted when being transmitted at the critical surfaces of different media, whether the liquid level reaches the end positions of the first light guide body 21 and the second light guide body 22 can be determined according to the strength of the light signal received by the light signal receiver 12. Based on this, the photoelectric sensing assembly 10 of the present embodiment further includes a driving circuit for detecting the intensity of the optical signal, and is configured to convert the optical signal received by the optical signal receiver 12 into an electrical signal, and output the electrical signal to a controller of the cleaning device, such as a Micro Controller Unit (MCU), so that the controller of the cleaning device determines the intensity of the optical signal received by the optical signal receiver 12 according to the level of the received electrical signal, and further determines that the liquid level in the liquid storage tank 40 is high enough to reach the end of the two light guiding members.

FIG. 1d is a diagram of a driving circuit corresponding to the liquid level detecting device, wherein VCC is an input voltage for supplying power to Q1 and Q2; q1 is a unidirectional light emitting diode, which is a specific implementation form of the optical signal emitter 11; q2 is a phototriode, which is a specific implementation form of the optical signal receiver 12; wherein Q1 is connected in series with R1, and Q2 is connected in series with R2; r1 and R2 are the resistance of the light guide component 20, and R3 and C3 mainly play a role in protecting the drive circuit and avoid the influence of excessive current on components and an MCU. The drive circuit may output the optical signal received by Q2 to the MCU. Optionally, the output end of the Q2 may be connected to an a/D conversion port of the MCU, and is used for converting the optical signal into an electrical signal, so that the MCU can determine the level of the electrical signal. Further, the MCU can judge the height of the liquid level in the liquid storage barrel 40 according to the level of the electric signal. For example, when the electrical signal received by the MCU is low or no level signal, it may be determined that the light signal received by Q2 is weak, indicating that the liquid level in the liquid storage tank 40 has reached the lower ends of the two light guiding members; when the electric signal received by the MCU is at a high level, it can be determined that the optical signal received by Q2 is strong, indicating that the liquid level in the liquid storage barrel 40 has not reached the lower ends of the two light guides. And then, according to the judgment result, the MCU can carry out corresponding control.

Further, in order to improve the anti-interference capability of the driving circuit, the photoelectric sensor assembly 20 further includes a follower circuit electrically connected to the signal output terminal of the driving circuit, wherein the output terminal of the follower circuit is electrically connected to the signal collecting terminal of the controller of the cleaning device, so as to provide a stable electrical signal to the controller. Fig. 1e is a circuit diagram of a photosensor assembly with a follower circuit, and as shown in fig. 1e, VCC1 and VCC2 are input voltages of a driver circuit and a follower circuit, respectively, and reference is made to the foregoing embodiments with respect to the structure and connection principle of the driver circuit. As shown in fig. 1e, the output end of the driving circuit is connected with the in-phase end (3) of the operational amplifier in the follower circuit, and the reverse end (2) of the operational amplifier is connected with the output end (1) of the operational amplifier; impedance between a non-inverting terminal (3) of the operational amplifier and an output terminal (1) of the operational amplifier tends to be infinite, so that a voltage signal input to the operational amplifier is the same as an output voltage signal, namely for the MCU, the received voltage is not interfered by the outside; c1 and C2 ground connection respectively for the protection follower circuit avoids the too big influence components and parts of electric current and MCU.

Further optionally, in order to ensure that the optical signal emitted by the optical signal emitter 11 and the optical signal received by the optical signal receiver 12 do not interfere with each other, the optical signal emitter 11 and the optical signal receiver 12 shown in fig. 1 a-1 c are arranged in isolation from each other. In this embodiment, the isolation arrangement is not limited, and optionally, an isolation component such as a light guide member may be used for isolation, or two purposes of isolation may be achieved by using a certain distance. Further optionally, in order to ensure that the optical signal transmitter 11 and the optical signal receiver 12 are not interfered by external light, a housing may be provided outside the photoelectric sensor assembly 10 to ensure that the transmitted and received optical signals are more accurate.

The liquid level detection device provided by the embodiment of the invention can be applied to various scenes in which liquid level detection is required, for example, in the process of injecting water into a water storage barrel or a water storage tank, in order to ensure that the injected water does not exceed the maximum capacity of the water storage barrel or the water storage tank, the liquid level detection device provided by the embodiment of the invention can be used for detecting whether the water level of the injected water meets the maximum capacity requirement of the water storage barrel or the water storage tank; for another example, when liquid is recovered into a certain recovery barrel, in order to ensure that the liquid recovered into the recovery barrel does not exceed the maximum capacity of the recovery barrel, the liquid level measuring device of the embodiment of the present application may be used to detect whether the liquid level of the recovered liquid reaches the maximum capacity requirement of the recovery barrel. In the embodiment of the present application, the installation manner of the photoelectric sensor assembly 10 and the light guide assembly 20 in use is not limited, and the installation may be flexible according to the application scenario of the liquid level detection apparatus. In some optional embodiments of the present application, the liquid level detection device may be applied to a cleaning device, and is used for performing liquid level detection on a liquid storage barrel of the cleaning device. Wherein, the liquid storage barrel can be a sewage barrel on the cleaning equipment and also can be a clear water barrel on the cleaning equipment. The step of detecting the liquid level of the sewage bucket mainly refers to the detection of the water level of the sewage recovered into the sewage bucket; the liquid level detection of the clear water barrel mainly refers to the detection of the level of clear water injected into the clear water barrel.

In any kind of liquid storage barrel, under the condition that the liquid level detection device is used on the cleaning equipment for detecting the liquid level of the liquid storage barrel, the photoelectric sensor assembly 10 and the light guide assembly 20 can be both installed on the liquid storage barrel, for example, both installed on the barrel cover of the liquid storage barrel; alternatively, the photoelectric sensor assembly 10 may be separately installed, for example, on the body of the cleaning device, and the light guide assembly 20 may be installed on the cover of the liquid storage barrel. It should be noted that, when the photoelectric sensor assembly 10 and the light guide assembly 20 are both installed on the cover of the liquid storage barrel, and the liquid storage barrel is installed on the cleaning device, a power supply connection assembly may be disposed on the body at a position corresponding to the photoelectric sensor assembly 10 to supply power to the photoelectric sensor assembly 10; alternatively, an independent power supply may be mounted on the liquid storage barrel to supply power to the photoelectric sensor assembly 10.

Based on the above, the embodiments of the present application further provide a cleaning device with a liquid level detection device, and reference may be made to the following description of the embodiments regarding the structure of the cleaning device and the working principle thereof.

Fig. 2a is a schematic structural diagram of a cleaning apparatus provided in an embodiment of the present application, and as shown in fig. 2a, the cleaning apparatus 100 includes a main body 30, a liquid storage barrel 40, a cleaning assembly, which may be a floor brush 60, and a holding portion 50. The machine body 30 is separable from the liquid storage barrel 40, the machine body 30 is used for loading the liquid storage barrel 40, and the liquid storage barrel 40 comprises a barrel cover 41 and a barrel body 42; the grip portion 50 can be gripped by a user when the cleaning apparatus 100 is used, for controlling the use direction, angle, and the like of the cleaning apparatus 100; the floor brush 60 can spray cleaning solution to the work surface, as well as clean and adsorb dirt from the work surface, and recover dirt and liquid from the work surface during the work process. As shown in fig. 2a, the cleaning device further comprises a liquid level detection device comprising a photosensor assembly 10 and a light guide assembly 20; the photoelectric sensor assembly 10 of the liquid level detection device is installed on the machine body, the photoelectric sensor assembly 10 comprises a light signal emitter 11 and a light signal receiver 12, the light guide assembly 20 is installed at the top of the liquid storage barrel 40, the light guide assembly 20 comprises a first light guide body 21 and a second light guide body 22, the first light guide body 21 and the second light guide body 22 are arranged in parallel and extend to the same height position in the barrel body 42. In the embodiment of the present application, when the liquid storage tank 40 is loaded on the body 30, the first light guide 21 and the second light guide 22 are respectively aligned with the optical signal emitter 11 and the optical signal receiver 12, and the specific structure can be seen in fig. 1a to 1 c.

In some alternative embodiments of the present application, the first light guide 21 and the second light guide 22 are spaced apart by a predetermined distance, and the specific size of the predetermined distance is not limited. In an alternative embodiment of the present application, the liquid storage tank 40 is implemented as a sewage tank for containing sewage generated during the use of the cleaning device 100, and the sewage recovered into the liquid storage tank 40 may include dirt such as fine particles. As the liquid in the barrel 42 increases, the dirt such as fine particles will rise continuously, and in order to ensure that the dirt such as fine particles will not be jammed between the first light guide 21 and the second light guide 22, the minimum value of the preset distance should be ensured to be larger than the diameter of the particulate dirt entering the barrel 42 during the conventional operation. It should be noted that the preset distance may be different according to the type of the cleaning apparatus 100, the size and the structure of the liquid storage tank 40 and the application environment, and is not limited herein. In an alternative embodiment, the predetermined distance may be greater than 0.5cm and less than 5cm, preferably 1.5 cm.

In practical applications, when a user cleans the floor or wall with the cleaning apparatus 100, a liquid that is easy to generate foam, such as detergent, may be used, or a small amount of bubbles may be generated due to the suction of a high-speed airflow, and when the liquid mixed with foam is recycled to the tub 42 and continuously increases, the more foam is accumulated, the accumulated foam may reach the lower end of the light guide assembly 20, and the liquid level in the tub 42 does not reach the lower end of the light guide assembly 20, and if the liquid level in the tub 42 reaches the lower end of the light guide assembly 20, it is determined that the liquid is detected, and the accumulated foam may have diffused to the tub cover 41 or other components, and even may enter the main motor along with the gap, thereby damaging the apparatus. In the embodiment of the present application, the first light guide 21 and the second light guide 22 are spaced apart from each other to have another function of detecting that foam has accumulated on the lower end of the light guide assembly 20 in time when foam enters between the two light guides. For example, when foam enters between the first light guide body 21 and the second light guide body 22, due to the gaps between the foam, after the light signal is reflected from the first light guide slope s1, the propagation path of the light signal may be changed by refraction and reflection of the foam during the transmission from the first light guide body 21 to the second light guide body 22, and there is a possibility that the light signal may not be irradiated onto the second slope s2, or only a small portion of the light signal may be irradiated onto the second slope s2, so that the light signal received by the light signal receiver 12 is weakened. Based on this, when the controller of the cleaning apparatus 100 receives the low-level electric signal, it may be determined that the liquid level detection device has detected the foam, the cleaning apparatus 100 is controlled to stop operating, and a corresponding prompt message is output.

In an alternative embodiment of the present application, a display (not shown in the drawings) may be further disposed on the main body 30 of the cleaning apparatus 100, wherein the display may be electrically connected to a controller of the cleaning apparatus 100 for displaying the operating status information of at least one component on the cleaning apparatus 100, so as to visually display the operating status of the cleaning apparatus 100, and a user may visually know the operating status of the component on the cleaning apparatus 100, which is helpful for improving user experience. In the embodiment of the present application, the specific shape of the display is not limited, and alternatively, the display may be a regular shape such as a circle, a square, an ellipse, a trapezoid, or a polygon, or may be any irregular shape, which is not listed here. Further alternatively, the display may be disposed on the top of the body 30, or may be disposed in front of, on the left of, or on the right of the body 30, and if the display is disposed on the top of the body 30, the plane of the display may be perpendicular to or at an angle with the axis of the body 30, for example, the display may be disposed above the liquid storage barrel 40. Further, in order to satisfy the viewing angle of the user, a display may be disposed in front of the holding portion 50 in the direction extending from the holding portion 50 to the liquid storage barrel 40.

In an alternative embodiment, the display may include at least one display area for displaying operating status information for the different components. Optionally, the operating state information of the at least one component includes at least one of: (1) cleaning degree information of the cleaning object by the floor brush 60; (2) power information of the power supply unit; (3) self-cleaning information of the cleaning apparatus 100; (4) main motor power information; (5) stalling information of the floor brush 60; (6) operating state information of the communication component; (7) liquid level information of the liquid storage barrel 40; (8) transmission/reception information of the photoelectric sensor element 10; (9) level information output by the photosensor assembly 10, and the like. Wherein, the liquid level information of the liquid storage barrel 40 includes whether liquid level or foam is detected; the transceive information of the photoelectric sensor assembly 10 includes whether an optical signal is transmitted or received; the level information output by the photosensor assembly 10 includes outputting a high level or a low level.

Based on this, when the liquid level detection device detects the liquid level in the barrel 42, the photoelectric sensor assembly 10 may send an electrical signal to the controller, and the controller determines the liquid level detection result according to the received electrical signal, and displays the status information corresponding to the above items (7), (8), (9), and the like on the display. Further optionally, the cleaning device 100 may further include an audio component, and in the case of displaying the status information, a prompt such as a voice, an alarm, or a light may be output to the user, so that the user can view the status information on the display screen.

Fig. 2b is a schematic structural diagram of another cleaning device 100 according to an embodiment of the present invention, as shown in fig. 2b, a fastening structure 43 and a filter 44 are fixedly disposed on a tub cover 41, the fastening structure 43 is disposed on a side close to an outer edge of the tub cover 41 (i.e., an edge far away from the body), and the filter 44 is disposed on a top of the tub cover 41. The fastening structure 43 is used for fastening the liquid storage barrel 40 to the body 30 when the liquid storage barrel 40 is mounted on the body 30; the filter 44 filters and discharges the gas recovered into the tub 42 together with the contaminated water and dirt. In an optional embodiment, the liquid level detection device further includes a light guide plate, and further optionally, an installation groove is provided between the fastening structure 43 and the filter 44, and the installation groove is provided with two installation holes; the light guide plate is clamped in the mounting groove, and the first light guide 21 and the second light guide 22 are mounted on the light guide plate and extend into the barrel 42 through the two mounting holes. In the embodiment of the present application, the barrel cover 41 is provided with the light guide plate, which on one hand facilitates the transmission of the optical signal, and on the other hand can also plug the two mounting holes, thereby avoiding the liquid in the barrel body 42 from overflowing from the barrel cover 41. In the embodiment of the present application, the installation manner of the light guide plate and the first and second light guide bodies 21 and 22 is not limited, and the first and second light guide bodies 21 and 22 and the light guide plate may be integrally formed, or the first and second light guide bodies 21 and 22 may be detachably installed below the light guide plate, for example, in a form of a screw fastener.

In an alternative embodiment of the present application, as shown in fig. 2b, the bottom of the barrel body 42 is provided with a water inlet pipe 45 extending towards the barrel cover 41, and the water inlet pipe 45 extends towards the barrel cover 41 for a certain distance, which determines the capacity of the liquid storage barrel 40. This inlet tube 45 and scrubbing brush 60 intercommunication, the motor adsorption function at the cooperation stock solution bucket 40 top can adsorb the foul solution and the dirt that produce by the clean operation surface of scrubbing brush 60 in the operation process to staving 42 in, wherein, is filtered and discharge staving 42 through filter 44 along with the gas that foul solution and dirt were together adsorbed to staving 42. Further alternatively, as shown in FIG. 2b, a baffle 46 extending to the bottom of the barrel 42 is provided between the filter 44 and the mounting groove, and the height of the end of the baffle 46 and the height of the ends of the first and second light guiding bodies 21 and 22 relative to the bottom of the barrel 42 are both smaller than the height of the end surface of the nozzle of the water inlet pipe 45 in the barrel 42. In the embodiment of the present application, the height of light guide assembly 20 from the bottom of barrel 42 is not limited, and optionally, the height of light guide assembly 20 from the bottom of barrel 42 does not exceed the highest liquid scale mark required by barrel 42, so as to avoid that the liquid level detection device cannot detect the liquid level height in barrel 42 when liquid reaches the highest scale mark of barrel 42.

Further alternatively, as shown in fig. 2b, the first light guide 21 and the second light guide 22 are disposed on the same side of the baffle 46, the water inlet pipe 45 is disposed on the other side of the baffle 46, and the baffle 46 separates the nozzle of the water inlet pipe 45 from the first light guide 21 and the second light guide 22, so that the baffle 46 can prevent the liquid sprayed from the nozzle of the water inlet pipe 45 from splashing on the light guide assembly 20, and prevent the liquid from hanging on the surface of the light guide assembly 20 and affecting the propagation path of the optical signal. Fig. 2i is the front view of stock solution bucket 40, as shown in fig. 2i, when liquid outwards sprays from the mouth of pipe of water pipe 45, the liquid that presses close to baffle 46 one side can not spatter on leaded light subassembly 20, can fall back to staving 42 under the blockking of baffle 46 in, along with the continuous fall back of liquid, the liquid level in the staving 42 can constantly rise, until leaded light subassembly 20 detects the liquid level.

In an alternative embodiment of the present application, for example, to avoid interference of other external light on the optical signal emitted and received by the photoelectric sensor assembly 10, the photoelectric sensor assembly 10 may be installed in a housing at the front side of the body 30, wherein a first through hole and a second through hole are opened on the housing at positions facing the optical signal emitter 11 and the optical signal receiver 12, when the liquid storage barrel 40 is loaded on the body 30, the top ends of the first light guide 21 and the second light guide 22 are respectively aligned with the first through hole and the second through hole, so that the optical signal emitted by the optical signal emitter 11 can pass through the first through hole and be incident into the first light guide 21, and the optical signal transmitted and emitted by the second light guide 22 can pass through the second through hole and be incident into the second light guide 22.

In an alternative embodiment of the present application, when the liquid storage tub 40 is loaded on the main body 30, the liquid storage tub 40 is located below the main motor in a direction in which the cleaning apparatus 100 is longitudinally placed. Wherein the main motor of the cleaning device 100 is installed in the housing in a direction perpendicular to the axial direction of the main body 30, optionally, the photoelectric sensor assembly 10 may be installed in the housing near or in close proximity to the main motor. The photo sensor assembly 10 extends outward in the main motor direction to a position facing above the mounting groove between the snap structure 43 and the filter 44 on the tub cover 41, so that the optical signal of the optical signal transmitter 11 can be incident to the first light guiding body 21 through the light guiding plate, and the optical signal transmitted by the second light guiding body 22 and returned through the light guiding plate is received by the optical signal receiver 12.

In an alternative embodiment of the present application, the power may be supplied to the photosensor assembly 10 at all times when the cleaning apparatus 100 is powered on; or, under the condition that the liquid storage barrel 40 is determined to be arranged on the machine body 30, power is supplied to the photoelectric sensor assembly 10; or, the photoelectric sensor assembly 10 is powered according to a power supply instruction sent by the MCU, and the power supply mode may be determined according to actual requirements. For the way of determining whether the reservoir 40 is mounted on the body 30, refer to the following embodiments.

In practical applications, when the liquid storage barrel 40 is loaded on the body 30, the cleaning device operates to use the liquid storage barrel 40, so, in an alternative embodiment, the controller controls the host electronic control board to supply power to the photoelectric sensor assembly 10 to start the operation of the liquid level detection device when detecting that the liquid storage barrel 40 is loaded on the body 30. In order to accurately identify whether the liquid storage barrel 40 is loaded on the body 30, another photoelectric sensor assembly is provided in the embodiment of the present application, and fig. 2c is a schematic structural view of the photoelectric sensor assembly 10. As shown in fig. 2c, the photosensor assembly 10 includes an electromagnetic induction device 13 and an electromagnetic trigger device 14 in addition to the optical signal emitter 11 and the optical signal receiver 12; the electromagnetic induction device 13, the optical signal emitter 11 and the optical signal receiver 12 are disposed on the body 30, and the electromagnetic trigger device 14, the first light guide 21 and the second light guide 22 are disposed on the liquid storage barrel 40.

When the liquid storage barrel 40 is loaded on the machine body 30, an induction signal is generated between the electromagnetic induction device 13 and the electromagnetic trigger device 14, and the occurrence of the induction signal indicates that the liquid storage barrel 40 is loaded on the machine body 30. In this embodiment, the signal output end corresponding to the electromagnetic induction device 13 is connected to the signal acquisition end of the controller of the cleaning apparatus 100, and the induction signal is converted into an electric signal by the driving circuit corresponding to the electromagnetic induction device 13 and then output to the controller of the cleaning apparatus 100, so that the controller can identify the liquid storage barrel 40 to be loaded on the machine body 30 according to the electric signal, and then determine that the optical signal received by the optical signal receiver 12 is the optical signal transmitted by the second light guide 22. As shown in fig. 2d, it is a driving circuit corresponding to the electromagnetic induction device 13, where VCC is an input voltage; the MCU is a controller of the cleaning device 100; u2 is an electromagnetic signal converter, 1 is a signal input end, 2 is a signal output end, and 3 is grounded; r10, R11 and R12 are circuit resistors respectively. When the liquid storage barrel 40 is loaded on the machine body 30, the electromagnetic induction device 13 and the electromagnetic trigger device 14 are adsorbed, two

ends

2 and 3 are communicated, and the end 2 outputs low level; when the liquid storage barrel 40 is not loaded on the machine body 30, the electromagnetic induction device 13 is separated from the electromagnetic trigger device 14, the two ends 2 and 3 are disconnected, and the end 2 outputs high level; the MCU can determine whether the liquid storage barrel 40 is loaded on the body 30 according to the received level information, and perform corresponding control.

In the present embodiment, the positions of the electromagnetic induction device 13 and the electromagnetic trigger device 14 are not limited, and in order to ensure the accuracy of the docking between the electromagnetic induction device 13 and the electromagnetic trigger device 14, alternatively, as shown in fig. 2c, the electromagnetic induction device 13 may be disposed between the optical signal emitter 11 and the optical signal receiver 12 on the photosensor assembly 10, and the electromagnetic trigger device 14 may be disposed on the tub cover 41 at a position corresponding to the position between the first light guide 21 and the second light guide 22, so that the electromagnetic induction device 13 and the electromagnetic trigger device 14 can be docked accurately when the liquid storage tub 40 is loaded on the body 30.

In order to identify whether the liquid storage barrel 40 is loaded on the body 30, in another alternative embodiment of the present application, a switch assembly may be further disposed between the body 30 and the liquid storage barrel 40, fig. 2e is a schematic structural diagram of the cleaning apparatus 100 with the switch assembly 70, and as shown in fig. 2e, a signal output terminal of a driving circuit corresponding to the switch assembly 70 is connected to a signal acquisition terminal of a controller of the cleaning apparatus 100. When the liquid storage barrel 40 is loaded on the body 30, the switch assembly 70 is closed, and the corresponding driving circuit outputs a low level; when the liquid storage barrel 40 is not loaded on the body 30, the switch assembly 70 is turned off, and the corresponding driving circuit outputs a high level; the controller of the cleaning apparatus 100 may determine whether the liquid storage tank 40 is loaded on the body 30 according to the received level information, and perform corresponding control.

Further alternatively, the switch assembly 70 may be implemented by a micro switch, as shown in fig. 2f, the switch assembly 70 includes a micro switch 71 and a trigger 72, wherein the micro switch 71 is disposed on the body 30, and the trigger 72 is disposed on the corresponding position of the liquid storage barrel 40. In order to ensure that the liquid storage barrel 40 can be completely and adaptively transferred onto the machine body 30, a second mounting groove is formed in the machine body 30, a micro switch 71 is embedded in the second mounting groove, and when the liquid storage barrel 40 is loaded on the machine body 30, the trigger 72 is in contact with the micro switch 71 to close the micro switch 71 and output a low-level signal to the controller of the cleaning device 100; when the liquid storage barrel 40 is not loaded on the body 30, the trigger 72 is disconnected from the micro switch 71 and outputs a high level signal to the controller of the cleaning apparatus 100; further, the controller of the cleaning apparatus 100 may recognize that the liquid storage tub 40 is loaded on the body 30 according to the received level information.

Fig. 2g is a schematic structural diagram of the micro switch 71, wherein 1 is a common pin, 2 is a normally open pin, and 3 is a normally closed pin. When the liquid storage barrel 40 is loaded on the machine body 30, the

pins

1 and 2 are connected, the circuit is switched on, and the output end of the driving circuit outputs a low-level signal; when the liquid storage barrel 40 is not loaded on the machine body 30, the

pins

1 and 3 are connected, the circuit is disconnected, and the output end of the driving circuit outputs a high-level signal. Fig. 2h is a driving circuit diagram corresponding to the microswitch 71, wherein S1 is connected to pin 2, when the liquid storage barrel 40 is loaded on the machine body 30, S1 is closed, the circuit is switched on, and the output end outputs a low level signal; the S2 pin 3 is connected, and when the liquid storage barrel 40 is not mounted on the body 30, the S2 pin is closed, the circuit is opened, and the output end outputs a high level signal. Further, the controller of the cleaning apparatus 100 may recognize that the liquid storage tub 40 is loaded on the body 30 according to the received level information.

In the alternative embodiment of the present application, the specific control content of the controller of the cleaning apparatus 100 after receiving the photoelectric signal is not limited, and the corresponding control content may be different according to the type of the liquid storage tank 40 and the operation mode. For example, in the case that the storage tank 40 is a clean water tank or a detergent container, when it is detected that clean water injected into the clean water tank or detergent injected into the detergent container reaches a maximum volume scale, a prompt message may be output to the user in the form of voice, alarm, light, or the like, to prompt the user to stop injecting. For example, when the liquid storage tank 40 is a sewage tank, when it is detected that the sewage, dirt, foam, or the like collected into the sewage tank reaches the maximum volume scale line, the cleaning device 100 may be controlled to stop operating, and a prompt message may be output to the user in the form of voice, alarm, light, or the like to prompt the user to remove the sewage tank and pour the dirty liquid in the tank.

The embodiment of this application still provides a stock solution bucket, as shown in fig. 3a, the stock solution bucket includes: a tub cover 41 and a tub 42; wherein, a light guide assembly 20 in the liquid level detection device is arranged on the barrel cover 41. As shown in fig. 3b, the light guide assembly 20 includes a first light guide 21 and a second light guide 22, and the first light guide 21 and the second light guide 22 extend to the same height position in the barrel 42; the tail ends of the first light guide body 21 and the second light guide body 22 respectively form a first inclined surface and a second inclined surface, and the inclined surface directions of the first inclined surface and the second inclined surface are opposite in the same horizontal direction; the photoelectric sensor assembly of the liquid level detection device is arranged on the machine body matched with the liquid storage barrel and comprises an optical signal transmitter and an optical signal receiver; when the liquid storage barrel is loaded on the machine body, the first light guide body 21 and the second light guide body 22 are respectively aligned with the optical signal emitter and the optical signal receiver, and are used for reflecting the optical signal incident into the first light guide body from the optical signal emitter into the second light guide body and transmitting the optical signal to the optical signal receiver through the second light guide body.

In an alternative embodiment, the first light guide 21 and the second light guide 22 are spaced apart by a predetermined distance. Optionally, the predetermined distance is greater than 0.5cm and less than 5cm, preferably 1.5 cm.

In an alternative embodiment, extension lines of the first inclined surface and the second inclined surface are intersected to form an isosceles right triangle.

In an optional embodiment, the barrel cover 41 is fixedly provided with a buckle structure and a filter, a mounting groove is arranged between the buckle structure and the filter, and two mounting holes are formed in the mounting groove; the light guide assembly 20 further includes a light guide plate clamped in the mounting groove, and the first and second light guides 21 and 22 are mounted on the light guide plate and extend into the barrel 42 through the two mounting holes.

In an alternative embodiment, the first and second light guiding members 21 and 22 are integrally formed with the light guiding plate, or the first and second light guiding members 21 and 22 are detachably mounted below the light guiding plate.

In an alternative embodiment, a baffle plate extending towards the bottom of the barrel 42 is disposed between the filter and the mounting groove, and the height of the end of the baffle plate and the height of the ends of the first light guide 21 and the second light guide 22 relative to the bottom of the barrel 42 are both smaller than the height of the end face of the nozzle of the water inlet pipe in the barrel 42, wherein the water inlet pipe is disposed at the bottom of the barrel 42 and extends a certain distance towards the barrel cover 41.

In an alternative embodiment, the first light guide 21 and the second light guide 22 are disposed on the same side of the baffle, the water inlet pipe is disposed on the other side of the baffle, and the baffle separates the pipe orifice of the water inlet pipe from the first light guide 21 and the second light guide 22 to prevent the liquid sprayed from the pipe orifice of the water inlet pipe from being sprayed onto the first light guide 21 and the second light guide 22.

An embodiment of the present application further provides a cleaning apparatus, including: the liquid level detection device comprises a machine body, a liquid storage barrel and a liquid level detection device; the body is provided with a photoelectric sensor assembly in the liquid level detection device, and the photoelectric sensor assembly comprises an optical signal transmitter and an optical signal receiver which are isolated from each other; the liquid level detection device also comprises a light guide assembly arranged on the liquid storage barrel matched with the machine body, wherein the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the light signal emitter and the light signal receiver and used for reflecting the light signals incident into the first light guide body from the light signal emitter into the second light guide body and transmitting the light signals to the light signal receiver through the second light guide body.

In an optional embodiment, the photoelectric sensor assembly is arranged in a shell on the front side of the machine body, and a first through hole and a second through hole are formed in the positions, facing the optical signal transmitter and the optical signal receiver, of the shell; when the liquid storage barrel is loaded on the machine body, the top ends of the first light guide body and the second light guide body are respectively aligned with the first through hole and the second through hole.

In an alternative embodiment, the main motor of the cleaning device is mounted in the housing in a direction perpendicular to the axial direction of the body, and the photosensor assembly extends outwardly in the direction of the main motor.

In an optional embodiment, the photoelectric sensor assembly further comprises a driving circuit corresponding to the optical signal emitter and the optical signal receiver, and a follower circuit electrically connected to a signal output end of the driving circuit, wherein an output end of the follower circuit is electrically connected to a signal acquisition end of a controller of the cleaning device, and is used for providing a stable electrical signal to the controller.

In an optional embodiment, the machine body is also provided with an electromagnetic induction device, and the liquid storage barrel is correspondingly provided with an electromagnetic trigger device; when the liquid storage barrel is loaded on the machine body, an induction signal is generated between the electromagnetic induction device and the electromagnetic trigger device, and the occurrence of the induction signal indicates that the liquid storage barrel is loaded on the machine body.

In an optional embodiment, an electromagnetic induction device is arranged on the photoelectric sensor assembly at a first position between the optical signal emitter and the optical signal receiver, and an electromagnetic trigger device is arranged on the barrel cover at a second position corresponding to a position between the first light guide body and the second light guide body; and the first position is aligned with the second position in a direction along the axial direction of the fuselage.

In an optional embodiment, a second mounting groove is formed in the machine body, a microswitch is embedded in the second mounting groove, and a trigger piece is correspondingly arranged on the liquid storage barrel; when the liquid storage barrel is loaded on the machine body, the trigger part is in contact with the micro switch to enable the micro switch to output an electric signal to a controller of the cleaning device, so that the controller can identify that the liquid storage barrel is loaded on the machine body according to the electric signal.

In addition, this application embodiment still provides a stock solution bucket, as shown in fig. 3c, the stock solution bucket includes: a tub cover 41 and a tub 42; a liquid level detection device is arranged on the barrel cover 41, and the liquid level detection device comprises a photoelectric sensor assembly 10 and a light guide assembly 20. As shown in fig. 3d, the photosensor assembly 10 includes an optical signal emitter 11 and an optical signal receiver 12; the light guide assembly 20 includes a first light guide 21 and a second light guide 22, the first light guide 21 and the second light guide 22 are respectively aligned with the optical signal emitter 11 and the optical signal receiver 12, and the first light guide 21 and the second light guide 22 extend to the same height position in the barrel 42; the ends of the first light guide 21 and the second light guide 22 are respectively a first inclined surface and a second inclined surface, and the inclined surfaces of the first inclined surface and the second inclined surface are opposite in the same horizontal direction, so as to reflect the optical signal incident from the optical signal emitter 11 to the first light guide 21 into the second light guide 22 and transmit the optical signal to the optical signal receiver 12 through the second light guide 22. Optionally, an independent power source may be provided in the reservoir for powering the photosensor assembly 10. For the working principle of the other liquid storage barrel and the liquid level detection device included therein provided in the embodiments of the present application, reference may be made to the description of the foregoing embodiments, which are not repeated herein.

Correspondingly, the embodiment of the application also provides a cleaning device, which is provided with an installation cavity of the liquid storage barrel and comprises the liquid storage barrel in the embodiment shown in the figures 3 a-3 d.

The communication component in the above embodiments is configured to facilitate communication between the device in which the communication component is located and other devices in a wired or wireless manner. The device where the communication component is located can access a wireless network based on a communication standard, such as a WiFi, a 2G, 3G, 4G/LTE, 5G and other mobile communication networks, or a combination thereof. In an exemplary embodiment, the communication component receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

The display in the above embodiments includes a screen, which may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

The power supply assembly of the above embodiments provides power to various components of the device in which the power supply assembly is located. The power components may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device in which the power component is located.

The audio component in the above embodiments may be configured to output and/or input an audio signal. For example, the audio component includes a Microphone (MIC) configured to receive an external audio signal when the device in which the audio component is located is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker for outputting audio signals.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A cleaning apparatus, comprising: the liquid level detection device comprises a machine body, a cleaning assembly, a liquid storage barrel and a liquid level detection device; the cleaning component is used for being matched with the liquid storage barrel to clean the working surface; the liquid storage barrel comprises a barrel cover and a barrel body, and the liquid level detection device comprises a photoelectric sensor assembly arranged on the body and a light guide assembly arranged on the barrel cover;

wherein the photosensor assembly comprises an optical signal transmitter and an optical signal receiver which are isolated from each other; the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel body; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal transmitter and the optical signal receiver;

the tail ends of the first light guide body and the second light guide body are respectively a first inclined surface and a second inclined surface, and the directions of the inclined surfaces of the first inclined surface and the second inclined surface are opposite in the same horizontal direction, so that the light signals emitted into the first light guide body by the light signal emitter are reflected into the second light guide body and transmitted to the light signal receiver by the second light guide body.

2. The cleaning apparatus according to claim 1, wherein the first light guide and the second light guide are spaced apart by a predetermined distance.

3. The cleaning apparatus defined in claim 2, wherein extensions of the first and second angled surfaces intersect to form an isosceles right triangle.

4. The cleaning apparatus defined in claim 2, wherein the predetermined distance is greater than 0.5cm and less than 5 cm.

5. The cleaning equipment as claimed in claim 1, wherein the barrel cover is fixedly provided with a buckle structure and a filter, a mounting groove is arranged between the buckle structure and the filter, and two mounting holes are formed in the mounting groove; the light guide assembly further comprises a light guide plate, the light guide plate is clamped in the mounting groove, and the first light guide body and the second light guide body are mounted on the light guide plate and extend into the barrel body through the two mounting holes.

6. The cleaning apparatus according to claim 5, wherein the first and second light guide members are integrally formed with the light guide plate, or are detachably mounted below the light guide plate.

7. The cleaning device according to claim 5, wherein a baffle plate extending towards the bottom of the barrel body is arranged between the filter and the mounting groove, the height of the tail end of the baffle plate and the height of the tail ends of the first light guide body and the second light guide body are smaller than the height of the end face of the pipe orifice of the water inlet pipe in the barrel body relative to the bottom of the barrel body, and the water inlet pipe is arranged at the bottom of the barrel body and extends for a certain distance towards the direction of the barrel cover.

8. The cleaning apparatus according to claim 7, wherein the first and second light guides are disposed on the same side of the baffle, the water inlet pipe is disposed on the other side of the baffle, and the baffle separates an orifice of the water inlet pipe from the first and second light guides to prevent the liquid ejected from the orifice of the water inlet pipe from being ejected onto the first and second light guides.

9. The cleaning device as claimed in any one of claims 1 to 8, wherein the photoelectric sensor assembly is mounted in a housing on the front side of the body, and the housing is provided with a first through hole and a second through hole at positions facing the optical signal transmitter and the optical signal receiver; when the liquid storage barrel is loaded on the machine body, the top ends of the first light guide body and the second light guide body are respectively aligned with the first through hole and the second through hole.

10. The cleaning device as claimed in any one of claims 1 to 8, wherein the photoelectric sensor assembly further comprises a driving circuit corresponding to the optical signal emitter and the optical signal receiver, and a follower circuit electrically connected to a signal output terminal of the driving circuit, wherein an output terminal of the follower circuit is electrically connected to a signal collecting terminal of a controller of the cleaning device for providing a stable electrical signal to the controller.

11. The cleaning equipment as claimed in any one of claims 1 to 8, wherein an electromagnetic induction device is further arranged on the machine body, and an electromagnetic trigger device is correspondingly arranged on the liquid storage barrel; when the liquid storage barrel is loaded on the machine body, an induction signal is generated between the electromagnetic induction device and the electromagnetic trigger device, and the occurrence of the induction signal indicates that the liquid storage barrel is loaded on the machine body.

12. The cleaning apparatus as claimed in claim 11, wherein the electromagnetic induction device is disposed on the photosensor assembly at a first position between the light signal emitter and the light signal receiver, and the electromagnetic trigger device is disposed on the barrel cover at a second position corresponding to a position between the first light guide and the second light guide; and the first position is aligned with the second position in a direction along the axial direction of the fuselage.

13. A liquid storage barrel, comprising: a barrel cover and a barrel body; the barrel cover is provided with a light guide assembly in the liquid level detection device, the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel body; the tail ends of the first light guide body and the second light guide body are respectively a first inclined surface and a second inclined surface, and the inclined surface directions of the first inclined surface and the second inclined surface are opposite in the same horizontal direction;

the liquid level detection device also comprises a photoelectric sensor assembly, wherein the photoelectric sensor assembly is arranged on a machine body or a barrel cover matched with the liquid storage barrel and comprises an optical signal transmitter and an optical signal receiver; when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal emitter and the optical signal receiver and used for reflecting the optical signal incident into the first light guide body from the optical signal emitter into the second light guide body and transmitting the optical signal to the optical signal receiver through the second light guide body.

14. A cleaning apparatus, comprising: the liquid level detection device comprises a machine body, a cleaning assembly, a liquid storage barrel and a liquid level detection device; the cleaning component is used for being matched with the liquid storage barrel to clean the working surface; the machine body is provided with a photoelectric sensor assembly in the liquid level detection device, and the photoelectric sensor assembly comprises an optical signal transmitter and an optical signal receiver which are isolated from each other;

the liquid level detection device also comprises a light guide assembly arranged on a liquid storage barrel matched with the machine body, wherein the light guide assembly comprises a first light guide body and a second light guide body, and the first light guide body and the second light guide body extend to the same height position in the barrel;

when the liquid storage barrel is loaded on the machine body, the first light guide body and the second light guide body are respectively aligned with the optical signal emitter and the optical signal receiver and used for reflecting the optical signal incident into the first light guide body from the optical signal emitter into the second light guide body and transmitting the optical signal to the optical signal receiver through the second light guide body.