Liquid level detection device and cleaning equipment

Abstract

The utility model discloses a liquid level detection device and cleaning equipment. The liquid level detection device is used for being installed on a cleaning tank to detect the liquid level in the cleaning tank. The liquid level detection device comprises an installation support, a floater and an induction assembly. The mounting bracket is detachably mounted on the cleaning tank, and a guide column is arranged on the mounting bracket; the floater is installed on the guide column and can reciprocate in the length direction of the guide column. The sensing assembly comprises a triggering part and a signal transmitting part, the triggering part is arranged in the floater, the signal transmitting part is used for being installed outside the cleaning tank, and the triggering part moves along with the floater so as to be used for triggering the signal transmitting part to transmit a liquid level signal. According to the liquid level detection device and the cleaning equipment, the problems that in the prior art, the mode that the liquid level in the cleaning tank is detected through an electrode plate is prone to false alarm, and the cleaning tank is inconvenient to maintain can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a liquid level detection device and cleaning equipment. Background Art

[0002] As a new type of cleaning appliance, cleaning robots are becoming more and more popular among users, especially the intelligent sweeping, washing and mopping robots. Because they use a multi-functional base station, they have practical functions such as self-cleaning, automatic garbage dumping, automatic recharging of hot water to wash the mop, drying the mop, and automatic water replenishment for the main unit to extend the battery life. They are very convenient to use and are therefore particularly popular with users.

[0003] However, with the development of cleaning robot products, the functions of base stations are becoming more and more powerful. Many base stations have built-in cleaning tanks for washing mops. When the liquid level in the cleaning tank is too high, the liquid in the cleaning tank is prone to leakage, which can easily damage other electrical components on the cleaning robot and pollute the environment. Most cleaning tanks on the market use electrode sheets for liquid level detection. During actual use, the electrode sheet detection method is easily contaminated with water and connected to conduct electricity, which is prone to false alarms, seriously affecting the user experience. At the same time, most of the existing electrode sheets are fixedly installed in the cleaning tank. When the cleaning tank needs to be cleaned and maintained, it is not convenient to clean the gap between the electrode sheet and the side wall of the cleaning tank. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquid level detection device and a cleaning device to solve the problem that the method of using electrode sheets to detect the liquid level in a cleaning tank in the prior art is prone to false alarms and is inconvenient to maintain the cleaning tank.

[0005] According to one aspect of the utility model, a liquid level detection device is provided for cleaning equipment, wherein the liquid level detection device is used to be installed on a cleaning tank to detect the liquid level in the cleaning tank, comprising:

[0006] A mounting bracket, the mounting bracket is detachably mounted on the cleaning tank, and a guide column is provided on the mounting bracket;

[0007] A float, which is mounted on the guide post and can reciprocate along the length direction of the guide post;

[0008] The sensing component includes a triggering part and a signal emitting part. The triggering part is arranged inside the float, and the signal emitting part is used to be installed outside the cleaning tank. The triggering part moves with the float to trigger the signal emitting part to emit a liquid level signal.

[0009] Furthermore, one end of the guide column close to the mounting bracket is detachably connected to the mounting bracket, and one end of the guide column away from the mounting bracket is provided with a stopper, and the float is sleeved on the guide column and limited by the stopper and the mounting bracket.

[0010] Furthermore, one end of the guide column close to the mounting bracket is detachably connected to the mounting bracket by at least one of a buckle, a screw or a bolt.

[0011] Furthermore, the guide post has a detection position extending along the depth direction of the cleaning tank, and when the guide post is at the detection position, there is a gap between the stopper and the bottom surface of the cleaning tank.

[0012] Furthermore, the mounting bracket is rotatably mounted on the cleaning tank, and the mounting bracket has a first position for rotating to the inside of the cleaning tank and a second position for rotating to the outside of the cleaning tank. When the mounting bracket is in the first position, the guide column extends along the height direction of the cleaning tank.

[0013] Furthermore, a rotating shaft is provided on the mounting bracket, an elastic clamping portion is provided on the cleaning tank, and the mounting bracket is rotatably connected to the elastic clamping portion via the rotating shaft.

[0014] Furthermore, the cross section of the rotating shaft includes an elliptical cross section, the elastic holding portion includes two elastic bodies arranged at intervals, a clamping groove is provided on the elastic body, and the rotating shaft is rotatably connected in the clamping groove through the position having the elliptical cross section.

[0015] Further, the two elastic bodies are arranged at intervals on the inner wall surface of the cleaning tank at the notch position, and the connecting line between the two elastic bodies is parallel to the bottom surface of the cleaning tank; and / or,

[0016] The mounting bracket comprises a mounting plate, and the rotating shaft is arranged on one side of the mounting plate.

[0017] Furthermore, a limiting portion is provided on the mounting bracket, and a limiting matching portion matching with the limiting portion is provided on the cleaning tank, and the limiting matching portion is connected to the limiting portion to lock the mounting bracket.

[0018] Further, one of the position-limiting portion and the position-limiting matching portion is a position-limiting hook, and the other is a position-limiting buckle matching with the position-limiting hook.

[0019] Furthermore, the triggering part comprises a magnetic ring, the float has a cavity inside, an annular limiting step is arranged in the cavity, and the magnetic ring is fixedly sleeved on the annular limiting step.

[0020] On the other hand, the present application also provides a cleaning device, which includes a cleaning tank and a liquid level detection device, and the liquid level detection device is the above-mentioned liquid level detection device.

[0021] In the utility model, the mounting bracket can be detachably mounted on the cleaning tank, for example, on the cleaning tank of a cleaning robot, through the function of the mounting bracket. When the liquid level detection device is working, the height direction of the guide column can be made consistent with the height direction of the inner cavity of the cleaning tank. At this time, under the action of the liquid in the cleaning tank, the float can reciprocate along the length direction of the guide column due to the buoyancy exerted by the liquid. Since a trigger part is provided inside the float in the utility model, the trigger part can move synchronously with the float. When the float rises and falls, the trigger part can transmit the displacement of the float and itself to the signal transmitting part, thereby detecting the liquid level of the liquid inside the cleaning tank.

[0022] In the present application, the trigger part of the sensing component for sensing the liquid level of the cleaning tank is arranged inside the float, and the signal transmitting part for transmitting the signal is located outside the cleaning tank, that is, in the liquid level detection device of the present invention, the elements for detecting the liquid level will not come into contact with the liquid in the cleaning tank, and it is not easy to misreport the liquid level. When the liquid level detection device of the present invention is installed in the cleaning tank of the cleaning robot, the user experience can be improved.

[0023] In addition, since the mounting bracket in the present application is detachably mounted on the cleaning tank, when the cleaning tank needs to be cleaned and maintained, the mounting bracket can be removed from the cleaning tank, thereby facilitating comprehensive cleaning and maintenance of the cleaning tank and the liquid level detection device, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 This is a structural schematic diagram of the liquid level detection device disclosed in the embodiment of the present application when it is installed on the cleaning tank (the liquid level detection device is in the first position);

[0026] Figure 2 for Figure 1 A magnified view of the N region in FIG.

[0027] Figure 3 It is a structural schematic diagram of the liquid level detection device disclosed in the embodiment of the present application when it is installed on the cleaning tank (the liquid level detection device is in the second position);

[0028] Figure 4 for Figure 3 A magnified view of the M region in FIG.

[0029] Figure 5 This is a schematic diagram of the structure of the cleaning tank disclosed in the embodiment of the present application;

[0030] Figure 6 An exploded view of a liquid level detection device disclosed in an embodiment of the present application;

[0031] Figure 7 for Figure 1 A top view of

[0032] Figure 8 for Figure 7 BB section view in;

[0033] Fig. 9 for Figure 8 A magnified view of region I in FIG.

[0034] Fig.10 for Fig. 9 AA section view in;

[0035] Fig.11 for Fig.10 A magnified view of region II in FIG.

[0036] Fig.12 A three-dimensional structural diagram of a cleaning device disclosed in an embodiment of the present application;

[0037] Fig.13 for Fig.12 A cross-sectional view of a cleaning device in FIG. 1 after partial cutting;

[0038] Fig.14 for Fig.13 Magnified view of the P region in .

[0039] The above drawings include the following reference numerals:

[0040] 10. Mounting bracket; 11. Guide column; 111. Stopper; 112. Buckle; 12. Rotating shaft; 13. Limiting part; 101. Mounting plate; 20. Float; 201. Through hole; 21. First shell; 22. Second shell; 221. Positioning rib; 222. Limiting step; 202. Cavity; 203. Annular limiting step; 30. Induction component; 31. Triggering part; 311. Magnetic ring; 32. Signal transmitting part; 40. Cleaning tank; 41. Limiting matching part; 50. Elastic holding part; 51. Elastomer; 511. Slot; 60. Gap; 100. Cleaning equipment. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0044] As mentioned in the background technology, the cleaning tank of the cleaning robot in the prior art uses an electrode sheet method for liquid level detection. During actual use, the electrode sheet detection method is easily connected to water and conductive, which is prone to false alarms, seriously affecting the user experience. At the same time, most of the existing electrode sheets are fixedly installed in the cleaning tank. When the cleaning tank needs to be cleaned and maintained, it is not convenient to clean the gap between the electrode sheet and the side wall of the cleaning tank. To this end, the utility model provides a new liquid level detection device, which will not have false alarms during use, is easier to clean, and can improve the user experience. The following will be a detailed introduction to the liquid level detection device of the utility model in conjunction with the accompanying drawings.

[0045] See also Figures 1 to 11 As shown, according to an embodiment of the present application, a liquid level detection device is provided, which is used for cleaning, specifically, the liquid level detection device is installed in a cleaning tank 40 to detect the liquid level in the cleaning tank 40. Specifically, the liquid level detection device includes a mounting bracket 10, a float 20 and a sensing component 30.

[0046] The mounting bracket 10 is detachably mounted on the cleaning tank 40, and a guide column 11 is provided on the mounting bracket 10; the float 20 is mounted on the guide column 11 and can reciprocate along the length direction of the guide column 11; the sensing component 30 includes a triggering part 31 and a signal transmitting part 32, the triggering part 31 is arranged inside the float 20, and the signal transmitting part 32 is used to be mounted outside the cleaning tank 40 (the outside here can be the outside of the cleaning tank 40, or it can be other structures outside the cleaning tank 40, Figure 13 to Figure 14 , the signal transmitting part 32 is arranged on the main structure of the cleaning device, and the triggering part 31 moves with the float 20 to trigger the signal transmitting part 32 to transmit the liquid level signal.

[0047] When the liquid level detection device in this embodiment is actually used, the mounting bracket 10 can be mounted on the cleaning tank 40, for example, on the cleaning tank 40 of the cleaning robot, through the action of the mounting bracket 10. When the liquid level detection device is working, the height direction of the guide column 11 can be consistent with the height direction of the inner cavity of the cleaning tank 40. At this time, under the action of the liquid in the cleaning tank 40, the float 20 can reciprocate along the length direction of the guide column 11 by the buoyancy exerted by the liquid. Since the float 20 in this embodiment is provided with a trigger part 31 inside, the trigger part 31 can move synchronously with the float 20. When the float 20 rises and falls, the trigger part 31 can transmit the displacement of the float 20 and itself to the signal transmitting part 32, and then the liquid level of the liquid inside the cleaning tank 40 can be detected. It can be understood that the liquid level detection method here can be a method of real-time detection of the liquid level position, or a method of triggering the signal transmitting part 32 to transmit a liquid level signal when the liquid level reaches a predetermined value. It is selected and designed according to the actual use requirements, and is not specifically limited in this application. In the present application, the triggering part of the sensing component for sensing the liquid level of the cleaning tank 40 is arranged inside the float 20, and the signal transmitting part for transmitting the signal is located outside the cleaning tank 40, that is, in the liquid level detection device in the present embodiment, the elements for detecting the liquid level will not come into contact with the liquid in the cleaning tank 40, and it is not easy to misreport the liquid level. When the liquid level detection device in the present embodiment is installed in the cleaning tank 40 of the cleaning robot, the user experience can be improved.

[0048] At the same time, since the mounting bracket 10 in the present application is detachably mounted on the cleaning tank 40, when the cleaning tank 40 needs to be cleaned and maintained, the mounting bracket 10 can be removed from the cleaning tank 40, and then the structure mounted on the mounting bracket 10 can be removed from the cleaning tank 40, which is convenient for comprehensive cleaning and maintenance of the cleaning tank 40 and the main structure of the liquid level detection device, and is more convenient to use.

[0049] In a specific embodiment of the present application, the trigger part 31 is set as a magnetic part; and the signal transmitting part is set as a Hall element. When the magnetic part rises and falls with the float 20, the Hall element can sense the position of the magnetic part and feedback the current position of the float 20, and then the liquid level in the cleaning tank 40 can be detected. Compared with the method of using electrode sheets for liquid level detection in the prior art, the method of using Hall elements and magnetic parts for liquid level detection in this embodiment is not easy to receive the problem of abnormal conduction of the electrode sheet due to liquid contact, thereby causing the problem of false liquid level alarm, and the liquid level detection is more accurate.

[0050] Of course, in other embodiments of the present application, the sensing component may also be a laser displacement sensor, a proximity switch or other structures. As long as it is other deformation methods under the concept of the present application, it is within the protection scope of the present application.

[0051] Combination Figures 6 to 11 As shown, the float 20 in this embodiment is a cylindrical structure, and the float 20 includes a first shell 21 and a second shell 22. The first shell 21 and the second shell 22 are fastened and fixedly connected together and enclosed to form a cavity 202. When actually installed, the magnetic part is installed in the cavity 202. In this way, it can be avoided that the magnetic part contacts the liquid in the cleaning tank 40 and rusts, etc., and the structural stability and service life of the liquid level detection device in this embodiment can be improved. Of course, in other embodiments of the present application, the float 20 can also be spherical, ellipsoidal or other regular or irregular shapes, as long as it is other deformation methods under the conception of the present application. In this embodiment, a through hole 201 structure is provided on the float 20. When installed, the float 20 is sleeved on the guide column 11 through the through hole 201. There is a clearance fit between the through hole 201 and the guide column 11. When there is a solution in the cleaning tank 40, it is convenient for the float 20 to rise and fall under the buoyancy applied by the solution.

[0052] Optionally, the magnetic part in this embodiment is a magnetic ring 311. In order to facilitate the limiting of the magnetic ring 311, a plurality of positioning ribs 221 are arranged inside the second shell 22 in this embodiment. The plurality of positioning ribs 221 are arranged at intervals along the outer periphery of the through hole 201 and extend radially along the through hole 201. A limiting step 222 is provided on each positioning rib 221. The plurality of limiting steps 222 form an annular limiting step 203. The radius of the annular limiting step 203 is the same as the inner diameter of the magnetic ring 311. During actual installation, the magnetic ring 311 can be fixedly mounted on the limiting step 222 on the positioning rib 221. The structure is simple and easy to assemble.

[0053] Of course, in other embodiments of the present application, a positioning column can be further provided inside the second shell 22, and an annular limiting step 203 can be provided on the positioning column to limit the magnetic ring. As long as it is other deformation methods based on the conception of the present application, they are all within the protection scope of the present application.

[0054] Recombination Figures 1 to 11 As shown, the mounting bracket 10 in this embodiment is rotatably mounted on the cleaning tank 40. In actual use, the mounting bracket 10 has a first position rotated to the inside of the cleaning tank 40 and a second position rotated to the outside of the cleaning tank 40. In this embodiment, by rotatably mounting the mounting bracket 10 on the cleaning tank 40, when the cleaning tank 40 needs to be cleaned and maintained or the liquid level detection device needs to be cleaned and maintained, the mounting bracket 10 can be rotated, which makes it easier to clean and maintain the cleaning tank and the liquid level detection device.

[0055] During actual use, when the mounting bracket 10 is in the first position, the guide column 11 extends along the height direction of the cleaning tank 40. Such an arrangement makes it easy to apply upward buoyancy to the float 20 when there is liquid inside the cleaning tank 40 so as to accurately detect the liquid level in the cleaning tank 40.

[0056] Furthermore, in order to facilitate the disassembly and assembly of the liquid level detection device, the end of the guide column 11 in this embodiment close to the mounting bracket 10 is detachably connected to the mounting bracket 10, and the end of the guide column 11 away from the mounting bracket 10 is provided with a stopper 111, and the float 20 is sleeved on the guide column 11 and limited by the stopper 111 and the mounting bracket 10. In this embodiment, by making the first end of the guide column 11 detachably connected to the mounting bracket 10, when the float 20 is actually installed, the float 20 can be sleeved on the guide column 11 from the first end of the guide column 11, and then the first end of the guide column 11 can be connected and installed on the mounting bracket 10. After installation, the stopper 111 and the mounting bracket 10 can limit the float 20 from both ends of the guide column 11 respectively to prevent the float 20 from sliding off the guide column 11.

[0057] In this embodiment, the stopper 111 may be a stopper plate, which protrudes from the outer peripheral surface of the guide column 11, so as to stop the float 20. Of course, in other embodiments of the present application, the stopper 111 may also be a stopper block, a stopper convex hull, and other structures, and any other deformation methods under the conception of the present application are within the protection scope of the present application.

[0058] Optionally, the end of the guide column 11 in this embodiment close to the mounting bracket 10 is detachably connected to the mounting bracket 10 by at least one of a buckle 112, a screw or a bolt. The drawings of the present application show a manner in which the end of the guide column 11 close to the mounting bracket 10 is detachably connected to the mounting bracket 10 by a buckle 112, which has a simple structure and is easy to disassemble and assemble. In this embodiment, by making the guide column 11 detachably connected to the mounting bracket 10, it is not only convenient to install the float 20, but also convenient to disassemble and assemble for maintenance of the liquid level detection device.

[0059] Furthermore, the guide column 11 in this embodiment has a detection position extending along the depth direction of the cleaning tank 40. When the guide column 11 is in the detection position, there is a gap 60 between the above-mentioned stop portion 111 and the bottom surface of the cleaning tank 40. That is to say, when the liquid level detection device is working, the stop portion 111 does not contact the bottom surface of the cleaning tank 40. Such a setting can prevent the bottom end of the guide column 11 and the float 20 from sticking to the dirt inside the cleaning tank 40, which not only facilitates the removal of the liquid level detection device from the cleaning tank 40, but also can improve the reliability of the use of the liquid level detection device to a certain extent.

[0060] In order to facilitate the disassembly and assembly of the mounting bracket 10, a rotating shaft 12 is provided on the mounting bracket 10 in this embodiment, and an elastic clamping portion 50 is provided on the cleaning tank 40, and the mounting bracket 10 is rotatably connected to the elastic clamping portion 50 through the rotating shaft 12. When in use, by applying an external force to the mounting bracket 10, the rotating shaft 12 can be driven to rotate relative to the elastic clamping portion 50, thereby driving the mounting bracket 10 to switch between the first position and the second position.

[0061] Further, in some embodiments of the present application, the cross section of the rotating shaft 12 includes an elliptical surface, and the elastic clamping portion 50 includes two elastic bodies 51 arranged at intervals, each of which is provided with a clamping groove 511, and the rotating shaft 12 is located between the two elastic bodies 51. When installed, the rotating shaft 12 is rotatably connected in the clamping groove 511 through the position having the above-mentioned elliptical cross section. In this embodiment, the elastic body 51 is a structural member with a certain elasticity. After the clamping groove 511 is processed, the groove width of the clamping groove 511 has a certain deformation margin, so that when the mounting bracket 10 is subjected to an external force, the rotating shaft 12 can rotate in the clamping groove 511 with a certain damping. At the same time, in this embodiment, by setting the cross section of the rotating shaft 12 to an elliptical surface, when installing, the long axis direction of the elliptical surface is consistent with the depth direction of the card slot 511, pressing the rotating shaft 12 downward, the rotating shaft 12 can be installed in the card slot 511 (at this time, the mounting bracket 10 is in the second position), after the rotating shaft 12 is installed to the bottom end of the card slot 511, applying an external force to the mounting bracket 10 can drive the rotating shaft 12 to rotate in the card slot 511, when the short axis of the cross section of the rotating shaft 12 is perpendicular to the depth direction of the card slot 511, the mounting bracket 10 is in the first position, the structure is stable, and it is easy to install and use. Optionally, the elastomer 51 in this embodiment can be a structure with a certain elastic deformation ability such as rubber, plastic or alloy steel.

[0062] In other embodiments of the present application, the rotating shaft 12 may also be a structure with a circular or polygonal cross section, as long as it can rotate in the card slot 511. At the same time, in this embodiment, by providing the card slot 511 and the rotating shaft 12 for matching connection, it is more convenient to install the liquid level detection device on the cleaning tank 40.

[0063] In order to facilitate the support and installation of the rotating shaft 12, in this embodiment, two elastic bodies 51 are arranged at intervals on the inner wall surface of the cleaning tank 40, and the line between the two elastic bodies 51 is parallel to the bottom surface of the cleaning tank 40. After the rotating shaft 12 is installed, the rotating shaft 12 is parallel to the bottom surface of the cleaning tank 40, and the mounting bracket 10 is flipped along the height direction of the cleaning tank to switch between the first position and the second position. The structure is simple and easy to operate. Of course, in other embodiments of the present application, the two elastic bodies 51 can also be arranged at intervals along the height direction of the cleaning tank 40. As long as it is other deformation methods under the conception of the present application, they are all within the protection scope of the present application.

[0064] Optionally, the mounting bracket 10 in this embodiment includes a mounting plate 101, and the above-mentioned rotating shaft 12 is arranged on one side of the mounting plate 101. In actual processing, the rotating shaft 12 can be integrally formed with the mounting plate, or can be separately arranged with the mounting plate 101 and then assembled into one body, which has a simple structure and is easy to implement. Of course, in other embodiments of the present application, the mounting bracket 10 can also be assembled by a plurality of plate-like structures or rod-like structures, as long as it can support and install the guide column 11 and the float 20.

[0065] Furthermore, a limiting portion 13 is provided on the mounting bracket 10 in the present embodiment, and correspondingly, a limiting matching portion 41 matching with the limiting portion 13 is provided on the cleaning tank 40, and the limiting matching portion 41 is connected to the limiting portion 13 for locking the mounting bracket 10 in the first position. Such a setting can improve the use stability and reliability of the liquid level detection device in the present embodiment.

[0066] Furthermore, in this embodiment, one of the limiting portion 13 and the limiting matching portion 41 is a limiting hook, and the other is a limiting buckle that matches the limiting hook. That is to say, when the limiting portion 13 is set as the limiting hook, the limiting matching portion 41 is set as the limiting buckle; when the limiting portion 13 is set as the limiting buckle, the limiting matching portion 41 is set as the limiting hook, which has a simple structure and is easy to use.

[0067] According to the above description, it can be known that the present application installs the magnetic ring inside the waterproof and sealed float 20 on the mounting bracket 10 with the guide column 11. The float 20 floats up and down a certain distance according to the liquid level. When the liquid reaches a certain volume, the magnetic ring in the float 20 can trigger the Hall element to send a signal, and then the liquid can be pumped out of the cleaning tank 40 through other suction structures. The rotating bracket can be disassembled after rotating to a certain angle, which is convenient for use and maintenance.

[0068] See also Figures 11 to 14 As shown, according to another aspect of the present application, a cleaning device 100 is provided. The cleaning device 100, for example, can be a cleaning base station, a cleaning robot, etc. The cleaning device includes a cleaning tank 40 and a liquid level detection device. Therefore, the cleaning device includes all the technical effects of the liquid level detection device in the above embodiment. Since the technical effects of the liquid level detection device have been described in detail above, they will not be repeated here.

[0069] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0070] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0071] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid level detection device for cleaning equipment, the liquid level detection device is used to be installed on a cleaning tank (40) to detect the liquid level in the cleaning tank (40), characterized in that: include: A mounting bracket (10), the mounting bracket (10) being detachably mounted on the cleaning tank (40), and a guide column (11) being provided on the mounting bracket (10); a float (20), the float (20) being mounted on the guide column (11) and being capable of reciprocating along the length direction of the guide column (11); A sensing component (30), the sensing component (30) comprising a triggering part (31) and a signal emitting part (32), the triggering part (31) being arranged inside the float (20), the signal emitting part (32) being used for being installed outside the cleaning tank (40), the triggering part (31) moving with the float (20) to trigger the signal emitting part (32) to emit a liquid level signal.

2. The liquid level detection device according to claim 1, characterized in that: One end of the guide column (11) close to the mounting bracket (10) is detachably connected to the mounting bracket (10), and one end of the guide column (11) away from the mounting bracket (10) is provided with a stopper (111), and the float (20) is sleeved on the guide column (11) and limited by the stopper (111) and the mounting bracket (10).

3. The liquid level detection device according to claim 2, characterized in that: One end of the guide column (11) close to the mounting bracket (10) is detachably connected to the mounting bracket (10) via at least one of a buckle (112), a screw or a bolt.

4. The liquid level detection device according to claim 2, characterized in that: The guide column (11) has a detection position extending along the depth direction of the cleaning tank (40). When the guide column (11) is at the detection position, a gap (60) is provided between the stopper (111) and the bottom surface of the cleaning tank (40).

5. The liquid level detection device according to claim 1, characterized in that: The mounting bracket (10) is rotatably mounted on the cleaning tank (40), and the mounting bracket (10) has a first position for rotating to the inside of the cleaning tank (40) and a second position for rotating to the outside of the cleaning tank (40), and when the mounting bracket (10) is in the first position, the guide column (11) extends along the height direction of the cleaning tank (40).

6. The liquid level detection device according to claim 5, characterized in that: The mounting bracket (10) is provided with a rotating shaft (12), the cleaning tank (40) is provided with an elastic clamping portion (50), and the mounting bracket (10) is rotatably connected to the elastic clamping portion (50) via the rotating shaft (12).

7. The liquid level detection device according to claim 6, characterized in that: The cross section of the rotating shaft (12) comprises an elliptical cross section, the elastic clamping portion (50) comprises two elastic bodies (51) arranged at intervals, a clamping groove (511) is provided on the elastic body (51), and the rotating shaft (12) is rotatably connected in the clamping groove (511) through a position having the elliptical cross section.

8. The liquid level detection device according to claim 7, characterized in that: The two elastic bodies (51) are arranged at intervals on the inner wall surface of the cleaning tank (40) at the notch position, and the connecting line between the two elastic bodies (51) is parallel to the bottom surface of the cleaning tank (40); and / or, The mounting bracket (10) comprises a mounting plate (101), and the rotating shaft (12) is arranged on one side of the mounting plate (101).

9. The liquid level detection device according to claim 1, characterized in that: The mounting bracket (10) is provided with a limiting portion (13), the cleaning tank (40) is provided with a limiting matching portion (41) matching with the limiting portion (13), and the limiting matching portion (41) is connected to the limiting portion (13) to lock the mounting bracket (10).

10. The liquid level detection device according to claim 9, characterized in that: One of the limiting portion (13) and the limiting matching portion (41) is a limiting hook, and the other is a limiting buckle that matches the limiting hook.

11. The liquid level detection device according to any one of claims 1 to 10, characterized in that: The triggering part (31) comprises a magnetic ring (311), the float (20) has a cavity (202) inside, an annular limiting step (203) is arranged in the cavity (202), and the magnetic ring (311) is fixedly sleeved on the annular limiting step (203).

12. A cleaning device, characterized in that: The cleaning device comprises a cleaning tank (40) and a liquid level detection device, and the liquid level detection device is the liquid level detection device according to any one of claims 1 to 11.

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