CN220124623U - Cleaning equipment and liquid level detection assembly - Google Patents

Abstract

The embodiment of the utility model provides cleaning equipment and a liquid level detection assembly, wherein a conductive connecting piece of the liquid level detection assembly is connected with a conductive detection piece through a flexible conductive piece, and the flexible conductive piece can be bent, wound and the like according to actual needs so as to be suitable for structures with different shapes and sizes. Furthermore, for structures with different shapes and sizes, the universal conductive connecting piece, the flexible conductive piece and the conductive detection piece can be adopted, the liquid level detection assembly with the size and the shape suitable for each structure is not required to be designed independently, or only one part of the liquid level detection assembly is required to be customized, and the production cost of the liquid level detection assembly is reduced.

Description

Cleaning equipment and liquid level detection assembly

Technical Field

The utility model relates to the technical field of cleaning equipment, in particular to cleaning equipment and a liquid level detection assembly.

Background

For cleaning apparatuses such as floor washers, a liquid storage container for storing liquid is generally provided therein. For example, sewage is generated after the floor scrubber is used, and thus a sewage tank (also called a recycling bin) is provided in the floor scrubber for storing the sewage generated after cleaning. When the liquid level in the sewage tank reaches a certain height, the sewage tank needs to be cleaned.

Conventionally, the prior art has all been to detect the liquid level in a sewage tank by a liquid level detection probe. However, the shape, size and other parameters of the liquid level conductive probe are fixed, so that the applicability is poor, if the structure of the floor washing machine or other cleaning equipment is changed, the shape, size and other parameters of the liquid level detection probe are also required to be changed correspondingly, and then the production mould is required to be prepared for the liquid level detection probe again, so that the cost is high.

Disclosure of Invention

The utility model provides cleaning equipment and a liquid level detection assembly, which are used for improving the use effect of the liquid level detection assembly.

The utility model provides cleaning equipment which comprises a machine body, a liquid storage container and a liquid level detection assembly, wherein the liquid level detection assembly comprises a conductive connecting piece, a flexible conductive piece and a conductive detection piece.

The liquid storage container is arranged on the machine body and is provided with an accommodating space; the conductive connecting piece is arranged on the liquid storage container and is coupled to the machine body; the flexible conductive member is connected to the conductive connection member; at least part of the conductive detection member is positioned in the accommodating space and connected to the flexible conductive member.

In some embodiments, the conductive sensing element is made of a non-metallic conductive material.

In some embodiments, the non-metallic conductive material is one of graphite, selenium, or silicon.

In some embodiments, the fluid level detection assembly further comprises a housing within which the conductive detection member is secured, the housing having an exposed opening provided therein to expose at least a portion of the conductive detection member.

In some embodiments, the conductive sensing element is secured within the housing by means of glue; alternatively, the fluid level detection assembly further includes a first seal that is interference fit between the housing and the conductive detection member to secure the conductive detection member.

In some embodiments, the flexible conductive element is a flexible circuit board or a wire.

In some embodiments, the fluid level detection assembly further comprises a conductive spring disposed between the flexible conductive member and the conductive connector in a compressed state to form an electrical connection between the flexible conductive member and the conductive connector.

In some embodiments, the liquid storage container is provided with at least two connecting parts, and the conductive connecting piece is connected at the connecting parts in a matching way; the conductive elastic piece comprises a fixed end and a free end, wherein the fixed end is arranged on the liquid storage container, the free end corresponds to the position of the connecting part, and the conductive connecting piece is propped against the free end, so that the conductive elastic piece is in a compressed state.

In some embodiments, the cleaning device is provided with two sets of the liquid level detection assemblies, and the two sets of the liquid level detection assemblies are conducted through liquid in a state that conductive detection pieces of the two sets of the liquid level detection assemblies are in contact with the liquid in the liquid storage container.

Correspondingly, the embodiment of the utility model also provides a liquid level detection assembly which comprises a conductive connecting piece, a flexible conductive piece and a conductive detection piece.

Wherein the conductive connection is disposed on the reservoir for coupling to an external circuit; the flexible conductive member is connected to the conductive connection member; the conductive sensing element is connected to the flexible conductive element.

In some embodiments, the conductive sensing element is made of a non-metallic conductive material.

In some embodiments, the non-metallic conductive material is one of graphite, selenium, or silicon.

In some embodiments, the liquid level detection assembly further comprises a housing within which the conductive detection member is secured, the housing having an exposure port provided thereon to expose a portion of the conductive detection member; the shell is internally provided with an adhesive layer, and the conductive detection piece is fixedly connected in the shell through the adhesive layer; alternatively, the fluid level detection assembly further includes a first seal that is interference fit between the housing and the conductive detection member to secure the conductive detection member.

In some embodiments, the flexible conductive element is a flexible circuit board or a wire.

In some embodiments, the fluid level detection assembly further comprises a conductive spring disposed between the flexible conductive member and the conductive connector in a compressed state to form an electrical connection between the flexible conductive member and the conductive connector.

The utility model has the following beneficial effects: the embodiment of the utility model provides cleaning equipment and a liquid level detection assembly, wherein a conductive connecting piece of the liquid level detection assembly is connected with a conductive detection piece through a flexible conductive piece, and the flexible conductive piece can be bent, wound and the like according to actual needs so as to be suitable for structures with different shapes and sizes. Furthermore, for structures with different shapes and sizes, the universal conductive connecting piece, the flexible conductive piece and the conductive detection piece can be adopted, the liquid level detection assembly with the size and the shape suitable for each structure is not required to be designed independently, or only one part of the liquid level detection assembly is required to be customized, and the production cost of the liquid level detection assembly is reduced.

In addition, in some embodiments, the liquid level detection part is made of a non-metal conductive material, so that the liquid level detection part is not easy to rust and the like, and the use stability and the use effect of the liquid level detection assembly are further guaranteed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows an exemplary schematic diagram of a cleaning device.

Fig. 2 schematically shows a schematic structure of a liquid storage container and a partial space inside the liquid storage container.

Fig. 3 schematically shows a structure of a cover of a liquid storage container.

Fig. 4 schematically shows a top view of a cover of a reservoir.

Fig. 5 schematically shows a cross-sectional view of a cover of a reservoir.

Fig. 6 illustrates a schematic diagram of a structure of a liquid level detection assembly at a position of a conductive detection member and a flexible conductive member.

Fig. 7 illustrates a semi-sectional view of a fluid level sensing assembly at the location of a conductive sensing member and a flexible conductive member.

The main elements in the embodiment of the utility model are marked:

body 10 main body 11

Hand-held wand 12 cleaning head 13

Reservoir 20 reservoir body 21

The cover 22 accommodates the case 221

Clamping protrusion 222 liquid level detection assembly 30

Conductive connector 31 flexible conductive member 32

Conductive detection member 33 casing 34

Exposed opening 341 clamping groove 342

Flange 343 clip portion 344

Conductive elastic member 35 of adhesive layer 345

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper", "lower", "left" and "right" are generally used to refer to the directions of the upper, lower, left and right sides of the device in actual use or operation, and are specifically shown in the drawings.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

The utility model provides a cleaning device and a liquid level detection assembly, which are respectively described in detail below. It should be noted that the following description order of the embodiments is not intended to limit the preferred order of the embodiments of the present utility model. In the following embodiments, the descriptions of the embodiments are focused on, and for the part that is not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments. The portions described in the respective embodiments may be combined with each other without explicitly describing the present utility model or without combining the obstacles, and the examples in the present embodiment do not constitute undue limitations on such combination.

Embodiments of the present utility model provide a cleaning apparatus, which may be a hand-held cleaner, floor scrubber, carpet extractor, table cleaner, cleaning robot or other device for cleaning, etc., and the present embodiments are not limited thereto.

Herein, referring to fig. 1, the cleaning apparatus mainly includes a machine body 10, a liquid storage container 20, and a liquid level detecting assembly 30 (see fig. 5).

With continued reference to FIG. 1, the machine body 10 generally defines the main structural contours of the cleaning device and may be used to mount, carry, and connect other various components. Illustratively, the body 10 includes a main body 11, and a hand-held wand 12, a suction source, a power supply assembly, a cleaning head 13, a controller, etc., provided on the main body 11, the hand-held wand 12 being for hand-holding by a user to operate the cleaning apparatus. The suction source, power supply assembly, cleaning head 13, controller, or other components may be mounted on the hand wand 12. Here, the cleaning head 13 is provided at the bottom of the hand-held pole, and the power supply assembly may be provided at a position at a lower portion of the hand-held pole so as to lower the center of gravity of the entire apparatus, which is, of course, not limited thereto. Here, the controller includes a chip, a circuit, and the like, which can form a connection with other components to control the other components, and the power supply assembly is used for connecting to the components needing power supply and supplying power to the components. For example, the power supply assembly, the controller, the cleaning head 13 and the suction source form a connection, the cleaning head 13 is provided with a cleaning cavity, and a rotating body such as a rolling brush is installed on the cleaning head 13, and the controller can control the rotating body of the cleaning head 13 to rotate and control the suction source to work so as to form suction airflow, so that the surface to be cleaned is cleaned. It will of course be appreciated that in other embodiments the cleaning device may be a self-moving device such as a cleaning robot, in which case the body 10 includes the housing structure of the cleaning robot and corresponding parts on the housing structure, although the above examples of this embodiment do not constitute undue limitations of the present utility model.

The liquid storage container 20 is provided on the body 10, and has a receiving space for storing liquid for the cleaning device or liquid generated or sucked by the cleaning device, etc. Typically, the reservoir 20 is detachably mounted (e.g., by snap-fit connection, etc.) to the body 10 for removal and cleaning and/or fluid replenishment, although this embodiment is not limited thereto. Illustratively, in one example, the reservoir 20 is used to store fresh water or cleaning liquid, etc., which is used to be supplied to the cleaning chamber of the cleaning apparatus or to the surface to be cleaned, to preferably effect cleaning of the surface to be cleaned. Still illustratively, in another example, the reservoir 20 is used to store the dirty water generated after operation of the cleaning apparatus, and the dirty water at the surface to be cleaned and/or the cleaning chamber is drawn into the reservoir 20. In which the liquid reservoir 20 supplies the liquid therein to a designated position through a pipe and a suction device such as a motor disposed in the pipe, and the suction device such as a motor and the suction source for forming a suction air flow described above may be the same component, although in some embodiments, the suction device such as a motor and the suction source for forming a suction air flow described above may be different components, and the example in this embodiment does not constitute undue limitation.

In some embodiments, referring to fig. 2, the liquid storage container 20 includes a container body 21 and a cover 22, and the container body 21 has the accommodating space therein. An opening is generally provided at one side of the accommodation space in the vertical direction, and the cover 22 is openably fitted on the container body 21 to close or open the opening. Illustratively, the cover 22 may be snapped over the opening. Referring to fig. 3 and 4, schematic views of the cover 22 after being removed from the container body 21 are shown. In other embodiments, the cover 22 may be pivoted on one side of the opening, magnetically engaged with the opening, or otherwise releasably engaged with the opening, which is not unduly limited by the example of this embodiment.

In a further embodiment, referring to fig. 2, the cover 22 is provided with a housing 221 extending toward the container body 21, and an inner cavity of the housing 221 is configured to house at least a portion of the liquid level detecting member. For example, when two liquid level detecting parts are provided, two receiving cases 221 spaced apart from each other may be provided on the cover 22 to receive at least a portion of the two liquid level detecting parts, respectively. Here, the housing case 221 and the cover 22 may be integrally formed, or the housing case 221 may be additionally connected to the cover 22, which is not limited in this embodiment.

Further, it is understood that in fig. 2, in order to show the structure inside the container body 21, the outer wall of a part of the container body 21 is removed to show the accommodation space and the accommodation case 221 therein, but the container body 21, which is usual in actual products, has a complete outer wall to form the accommodation space.

In addition, the present embodiment is merely illustrative of the structure of the liquid storage container 20, and in other embodiments, the structure of the liquid storage container 20 may be different, for example, the cover 22 may be disposed on a side surface of the container body 21 or other positions, or, for example, the liquid storage container 20 may not have the cover 22, but may be formed integrally with a substantially closed structure, and may be provided with a channel for water to enter and exit, etc., and the present embodiment does not place undue restrictions on the structure, shape, etc. of the liquid storage container 20.

The liquid level detection assembly 30 is used for detecting the liquid level in the liquid storage container 20 so as to realize related functions. The relevant function may be to perform relevant prompt on the user, perform relevant operation or other functions, and the embodiment is not limited thereto.

Herein, referring to fig. 5, the liquid level detecting assembly 30 includes a conductive connecting member 31, a flexible conductive member 32, and a conductive detecting member 33.

Referring to fig. 3 and 4, the conductive connecting member 31 is disposed on the liquid storage container 20 for coupling with the machine body 10 (see fig. 1) and transmitting electrical signals. Illustratively, the conductive connecting member 31 is disposed on the cover 22 of the liquid storage container 20 and on a side of the cover 22 away from the container body 21, so that the conductive connecting member 31 can be coupled with a corresponding portion of the machine body 10 when the liquid storage container 20 is assembled to the machine body 10. Specifically, the conductive connection member 31 may be coupled to a controller of the machine body 10, for example, a detection circuit of the controller. In a further example, contacts are provided on the body 10 at positions corresponding to the conductive connection members 31, and when the liquid storage container 20 is assembled to the body 10, the conductive connection members 31 are abutted with the contacts and form an electrical connection. The contacts are arranged in the detection circuit of the controller and the conductive connection 31 forms a coupling with the controller. Of course, in other embodiments, the installation position of the conductive connecting member 31 may be different, and the coupling manner of the conductive connecting member 31 and the machine body 10 may also be different, which is not limited in an undue manner by the example of the present embodiment.

Referring again to fig. 5, the flexible conductive member 32 is connected to the conductive connecting member 31 and the conductive detecting member 33, which is used to make electrical connection between the conductive connecting member 31 and the conductive detecting member 33. Here, the flexible conductive element 32 may be a wire, a flexible circuit board (Flexible Printed Circuit, FPC) or other flexible conductive components, and the flexible conductive element 32 may be bent, folded, wound, etc., so as to adapt to the requirements of different sizes and application spaces, and may be electrically connected with the conductive connecting element 31 and the conductive detecting element 33 conveniently by welding or other manners, so that the conductive connecting element 31 with a suitable size may be selected according to practical requirements.

The conductive detection member 33 is at least partially located in the accommodation space for detecting a liquid level in the accommodation space. Here, the conductive sensing member 33 is coupled to the controller through the flexible conductive member 32 and the conductive connection member 31, so that a sensing signal can be transmitted to the controller of the body 10.

Here, in some embodiments, the conductive detecting member 33 may be made of a non-metallic conductive material. This is because the conductive detecting member 33 needs to be in contact with the liquid in the liquid reservoir 20 in order to achieve detection of the liquid level, and the conductive detecting member 33 is liable to suffer from problems such as oxidation, rust, etc. when it is in contact with the liquid for a long period of time. In the embodiment of the present utility model, the conductive detection member 33 is made of a non-metal conductive material, so that the risk of rust of the conductive detection member 33 is reduced. Illustratively, the non-metallic conductive material is graphite, selenium, silicon, or the like. It will be understood, of course, that in other embodiments, the non-metallic conductive material is not limited to the above, or the conductive detecting member 33 may be made of a metallic material, which can also achieve the technical effect of detecting the liquid level, and the example of this embodiment is not meant to be unduly limited thereto.

Here, the resistances of the conductive connecting member 31, the flexible conductive member 32, and the conductive detecting member 33, which are sequentially connected, are small. For example, in one example, when the conductive sensing element 33 is made of graphite, the overall resistance of the conductive connecting element 31, the flexible conductive element 32, and the conductive sensing element 33, which are sequentially connected, is 2-6 ohms. The inventor of the present utility model has known a liquid level detecting assembly, which is formed by injection molding a carbon fiber-doped injection molding member to form a rigid conductive structure, and providing a metal sheet on the injection molding member as a detecting member, wherein the injection molding member has a substantially electrical resistance of 30-40 ohms when the metal sheet and the controller are electrically connected. It can be seen that the liquid level detection assembly provided by the embodiment of the utility model is beneficial to reducing the on-resistance of the liquid level detection assembly, so that the liquid level detection is more sensitive and effective.

In some embodiments, referring to fig. 5, the liquid level detecting assembly 30 further includes a housing 34, the conductive detecting member 33 is fixed in the housing 34, and an exposed opening 341 is provided on the housing 34 to expose at least a portion of the conductive detecting member 33, so that the conductive detecting member 33 contacts with the liquid outside and performs a detecting function. Illustratively, the conductive detecting member 33 is fixed in the housing 34 by means of glue filling, i.e. the conductive detecting member 33 is glued in the housing 34, and an adhesive layer is formed between the conductive detecting member 33 and the housing 34. The fixing mode is simple and convenient to operate, convenient to realize, low in cost, free of complex connecting structures, capable of achieving insulation, sealing and moisture-proof effects, and particularly suitable for the conductive detection piece 33 made of non-metal conductive materials. Still further illustratively, the fluid level detection assembly 30 further includes a first seal, which may be a seal ring or the like, that is interference fit between the housing 34 and the conductive detection member 33 to secure the conductive detection member 33. In other embodiments, the conductive detection member 33 and the housing 34 may be fastened by a different fastening, a hook and loop fastener, or other manners, which are not limited in this embodiment.

The housing 34 may be used to protect the conductive sensing element 33 and/or the housing 34 may be provided with mounting structure to mount the housing 34 and conductive sensing element 33 into the reservoir 20. For example, referring to fig. 6 and 7, the housing 34 is provided with a clamping groove 342, where the housing 34 is provided with a flange 343 protruding to the outer side in the circumferential direction, and a plurality of clamping portions 344 protruding to the outer side in the circumferential direction, and the flange 343 and the clamping portions 344 are spaced apart in the length direction of the housing 34 to form the clamping groove 342. The number of the engaging portions 344 is 2, and in other embodiments, the number of the engaging portions 344 may be different, which is not limited in this embodiment.

Referring to fig. 5, in some embodiments, the liquid storage container 20 includes a cover 22, a housing shell 221 is disposed on the cover 22, at least a portion of the housing shell 34 and the flexible conductive member 32 are accommodated in the housing shell 221, a protruding clamping protrusion 222 is disposed on an inward side of the housing shell 221, and the clamping protrusion 222 and the clamping groove 342 are disposed correspondingly, so that the housing shell 34 and the conductive detection member 33 can be mutually matched to fix the housing shell 221, i.e. to the liquid storage container 20.

It will be appreciated that in other embodiments, the receiving shell 221 may be provided with a clamping groove 342, and correspondingly the housing 34 may be provided with a clamping protrusion 222; in addition, the locking groove 342 or the locking protrusion 222 may be provided not on the accommodating case 221 but on other components of the liquid storage container 20, and the housing 34 and the liquid storage container 20 may be fixed; still further, the mating connection between the housing 34 and the housing 221 is not limited to the above, and for example, the two may be bonded, welded, etc., and the example of the present embodiment is not limited thereto.

In a further embodiment, on the basis of the fixing of the housing 34 into the housing 221, a matching groove is further provided on the housing 34, and the matching groove is used for embedding a second sealing ring, and the second sealing ring can improve the tightness between the housing 221 and the housing 34. It will be appreciated that in other embodiments, the mating groove may be provided on the inside of the housing 221, which is not limited by this embodiment.

Furthermore, in some embodiments, referring to fig. 5, an encapsulation layer 345 is disposed on an end of the housing 34 away from the conductive connecting member 31, and the encapsulation layer helps to achieve the insulation, moisture-proof, etc.

It can be seen that in the embodiment provided by the present utility model, the conductive detecting member 33 is connected to the conductive connecting member 31 through the flexible conductive member 32, and then coupled to the body 10 through the conductive connecting member 31. The flexible conductive member 32 is disposed between the conductive detecting member 33 and the conductive connecting member 31, and the flexible conductive member 32 can be bent, wound, etc. according to actual needs to change the length of the flexible conductive member 32, so that the liquid level detecting assembly 30 can be applied to liquid storage containers 20 with different sizes. Therefore, the liquid level detection assemblies 30 with different sizes are not required to be arranged for the liquid storage containers 20 with different shapes and sizes, and the production and use costs are reduced.

In addition, in the embodiment of the utility model, the modularized design of each component is realized through the arrangement, the conductive connecting piece 31, the flexible conductive piece 32 and the conductive detecting piece 33 are not connected into a whole, each component can be prepared respectively, and the flexible conductive piece 32 with proper length and size is selected according to actual requirements, so that the requirements of actual space layout can be better met.

Here, in some embodiments, referring to fig. 5, the liquid level detecting assembly 30 further includes a conductive elastic member 35, where the conductive elastic member 35 is disposed between the flexible conductive member 32 and the conductive connecting member 31 and is in a compressed state when the conductive connecting member 31 is cooperatively connected to the liquid storage container 20 (e.g., the cover 22 of the liquid storage container 20), so as to form an electrical connection between the flexible conductive member 32 and the conductive connecting member 31.

The conductive elastic member 35 is exemplified by a spring, but in other embodiments, the conductive elastic member 35 may be another elastic body such as a spring plate, and typically, the conductive elastic member is made of metal so as to perform a conductive function, which is not limited in this embodiment. Here, the liquid storage container 20 is provided with two connection parts, the conductive connection piece 31 is cooperatively connected at the connection parts, for example, the conductive connection piece 31 is a sheet metal component, the connection parts are holes or slots, and the edges of the sheet metal component are bent and embedded in the holes or slots, so as to realize connection between the conductive connection piece 31 and the liquid storage container 20. Alternatively, the conductive connection member 31 may be connected to the liquid storage container 20 by other means, such as a screw or the like, and fixed to the cover 22 of the liquid storage container 20.

Here, the conductive elastic member 35 includes a fixed end and a free end, the fixed end is disposed on the liquid storage container 20, for example, a connection post is disposed on the cover 22 of the liquid storage container 20, a protruding portion protruding toward the circumferential direction is disposed on one end of the connection post away from the conductive connecting member 31, the conductive elastic member 35 may be sleeved on the connection post, and the fixed end may be abutted and/or connected on the protruding portion. The free end corresponds to the position of the connecting portion, and when the conductive connecting member 31 is mounted at the position of the connecting portion, the conductive connecting member 31 presses against the free end, so that the conductive elastic member 35 is in a compressed state. When the conductive connecting member 31 is not mounted, the conductive elastic member 35 is in an uncompressed state, and it is protruded toward the connecting portion as compared with the compressed state.

Therefore, when the conductive connecting member 31 is installed in place, the conductive elastic member 35 is in a state of being compressed by the conductive connecting member 31, so that contact between the conductive connecting member 31 and the conductive elastic member 35 can be ensured, and electrical conduction between the conductive connecting member and the conductive elastic member can be realized. Meanwhile, the conductive elastic member 35 is connected to the flexible conductive member 32, and thus electrical conduction among the conductive sensing member 33, the flexible conductive member 32 and the conductive connecting member 31 is also correspondingly achieved. That is, by this arrangement, the occurrence of connection failure between the conductive connecting member 31 and the flexible conductive member 32 can be reduced, thereby improving the effectiveness of the liquid level detecting assembly 30.

In some embodiments, two sets of liquid level detecting components 30 are disposed on the cleaning apparatus, and when the liquid level in the liquid storage container 20 reaches the preset liquid level height, the conductive detecting members 33 of the two sets of liquid level detecting components 30 are both in contact with the liquid, and the liquid is conducted through the circuit. That is, after the electric signal is sent out by the controller, it passes through the conductive connecting member 31, the flexible conductive member 32 and the conductive detecting member 33 of the first group liquid level detecting assembly 30 in order, and is transferred to the conductive detecting member 33 of the second group liquid level detecting assembly 30 via the liquid. Then, the electric signals sequentially pass through the flexible conductive member 32 and the conductive connecting member 31 of the second group of liquid level detecting assemblies 30 and are transmitted to the controller, so that the conduction of the loop is formed. Thus, the controller recognizes that the liquid level in the liquid storage container 20 reaches a preset liquid level height, thereby controlling the cleaning apparatus to stop and/or sending a prompt signal or the like to the user.

It will be appreciated that in other embodiments, the potential difference between the conductive connectors 31 of the two sets of liquid level detecting assemblies 30 may be used to determine whether the liquid reaches the predetermined liquid level. For example, one conductive connection 31 is grounded, and the controller detects that the voltage of the conductive connection 31 is zero. At this time, the other conductive connection member 31 is not grounded, and the controller detects that the voltage of the other conductive connection member 31 is greater than zero, so that a voltage difference is formed between the two conductive connection members 31. After the conductive detecting member 33 contacts the liquid, the voltage difference will change, and the controller compares the voltage difference with a preset standard value to determine whether the liquid reaches the preset liquid level.

Accordingly, to better achieve the technical effects of the embodiments of the present utility model, the embodiments of the present utility model also provide a liquid level detection assembly 30, and the liquid level detection assembly 30 may be used in a cleaning apparatus or other apparatus to achieve detection of a liquid level height.

Here, the liquid level detecting assembly 30 includes a conductive connecting member 31, a flexible conductive member 32, and a conductive detecting member 33. Wherein the conductive connection 31 is provided on the reservoir 20 for coupling to an external circuit; the flexible conductive member 32 is connected to the conductive connection member 31; the conductive sensing member 33 is connected to the flexible conductive member 32.

In some embodiments, the conductive sensing element 33 is made of a non-metallic conductive material.

In some embodiments, the non-metallic conductive material is one of graphite, selenium, or silicon. It is understood that the nonmetallic electroconductive material is not limited to the above-described materials.

In some embodiments, the liquid level detection assembly 30 further includes a housing 34, the conductive detection member 33 is fixed in the housing 34, and an exposed opening 341 is provided on the housing 34 to expose a portion of the conductive detection member 33.

In some embodiments, an adhesive layer is disposed in the housing 34, and the conductive detection member 33 is fixedly connected in the housing 34 through the adhesive layer; alternatively, the fluid level detection assembly 30 further includes a first seal that is interference fit between the housing 34 and the conductive detection member 33 to secure the conductive detection member 33.

In some embodiments, the flexible conductive element 32 is a flexible circuit board or wire.

In some embodiments, the fluid level detection assembly 30 further includes a conductive spring 35, the conductive spring 35 being disposed between the flexible conductive member 32 and the conductive connector 31 in a compressed state to form an electrical connection between the flexible conductive member 32 and the conductive connector 31.

Application example one

In application example one, a liquid level detection assembly 30 is provided, the liquid level detection assembly 30 including a conductive connection member 31, a flexible conductive member 32, and a conductive detection member 33. Wherein the conductive connection 31 is adapted to be coupled to a controller, for example to a controller on the machine body 10 of the cleaning device. The flexible conductive member 32 is connected to the conductive connecting member 31, and the conductive detecting member 33 is connected to the flexible conductive member 32. Wherein the flexible conductive member 32 is a wire or a flexible circuit board.

Application example two

In application example two, there is provided a liquid level detection assembly 30, which is substantially the same in structure as in application example one. The difference is that the conductive detecting member 33 is made of a non-metallic conductive material. Specifically, graphite may be used, and the conductive sensing element 33 is generally cylindrical.

Application example three

In the third application example, a liquid level detection assembly 30 is provided, which is substantially the same in structure as in the second application example. The difference is that the liquid level detecting assembly 30 further includes a housing 34, and the conductive detecting member 33 is fixed in the housing 34 by means of glue filling. An exposing opening 341 is provided on the side of the housing 34 corresponding to the conductive detecting member 33 to expose a portion of the surface of the conductive detecting member 33.

Application example four

In the fourth application example, there is provided a liquid level detection assembly 30, which is substantially the same in structure as in the second or third application example. The difference is that the fluid level detection assembly 30 further comprises a conductive elastic member 35, the conductive elastic member 35 is a spring, the spring is fixed on an external component not belonging to the fluid level detection assembly 30, and the conductive detection member 33 is connected to the spring through a flexible conductive member 32. When the conductive connection member 31 is connected to an external part, the conductive connection member 31 compresses the spring and causes the spring to be compressed in a direction away from the conductive connection member 31. Thus, in the mounted state of the conductive connecting member 31, the spring has a movement tendency to protrude in a direction approaching the conductive connecting member 31, so that the spring can maintain contact with the conductive connecting member 31, thereby achieving electrical connection between the flexible conductive member 32 and the conductive connecting member 31.

For example, the external part is a liquid storage container 20 of the cleaning device, a spring is fixed on the liquid storage container 20, and a conductive connecting member 31 is installed on the liquid storage container 20.

Application example five

In application example five, a cleaning device is provided, which is a floor scrubber having a liquid reservoir 20, the liquid reservoir 20 being a sump of the floor scrubber. Two sets of application examples, one to four, provide a liquid level detection assembly 30 disposed at the liquid storage container 20, with a conductive detection member 33 of the liquid level detection assembly 30 extending into the liquid storage container 20 for detecting a liquid level therein.

Application example six

In application example six, a cleaning apparatus is provided, which is a mop robot having a liquid reservoir 20, the liquid reservoir 20 being a clean water tank of the mop robot for storing water or other cleaning liquid. Two sets of application examples, one to four, provide a liquid level detection assembly 30 disposed at the liquid storage container 20, with a conductive detection member 33 of the liquid level detection assembly 30 extending into the liquid storage container 20 for detecting a liquid level therein.

Application example seven

In application example seven, there is provided a cleaning apparatus which is a floor washer, the washing and mopping robot having two liquid storage containers 20, one of the liquid storage containers 20 being a clean water tank and the other liquid storage container 20 being a sewage tank. Each liquid storage container 20 is provided with a liquid level detection assembly 30 provided in any one of application examples one to four, respectively, the liquid level detection assembly 30 at the clean water tank being used to detect the liquid level in the clean water tank, and the liquid level detection assembly 30 at the sewage tank being used to detect the liquid level in the sewage tank.

It may be understood that in the foregoing embodiments, the meanings of terms in the cleaning device embodiment and the liquid level detection assembly embodiment are the same, specific implementation details between the two sets of embodiments may be referred to each other, and the illustration and the technical effects shown in the foregoing embodiments may be implemented correspondingly.

It may be understood that the meaning of the terms in the embodiments of the present utility model is the same, and for some embodiments, details of implementation of the terms may refer to descriptions in other embodiments, and the exemplary descriptions and technical effects shown in the foregoing embodiments may be implemented correspondingly, so that the repeated parts will not be repeated.

The cleaning apparatus and the liquid level detection assembly provided by the present utility model have been described in detail, and specific examples have been applied herein to illustrate the principles and embodiments of the present utility model, the above examples being provided only to assist in understanding the method of the present utility model and its core ideas; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (14)

1. A cleaning apparatus, characterized by comprising,

a body;

the liquid storage container is arranged on the machine body and is provided with an accommodating space;

a liquid level detection assembly, comprising,

a conductive connection member disposed on the liquid storage container and coupled to the body;

a flexible conductive member connected to the conductive connection member; and

and the conductive detection piece is at least partially positioned in the accommodating space and connected to the flexible conductive piece.

2. The cleaning apparatus defined in claim 1, wherein the conductive sensing element is formed of a non-metallic conductive material.

3. The cleaning apparatus defined in claim 2, wherein the non-metallic conductive material is one of graphite, selenium, or silicon.

4. A cleaning device according to any one of claims 1 to 3, wherein the liquid level detection assembly further comprises a housing, the conductive detection member being secured within the housing, the housing being provided with an exposure port for exposing at least a portion of the conductive detection member.

5. The cleaning apparatus of claim 4, wherein the cleaning device comprises a cleaning device,

the conductive detection piece is fixed in the shell in a glue filling manner; or,

the liquid level detection assembly further includes a first seal that is interference fit between the housing and the conductive detection member to secure the conductive detection member.

6. The cleaning apparatus defined in claim 1, wherein the flexible conductive element is a flexible circuit board or a wire.

7. The cleaning apparatus defined in claim 1, wherein the liquid level detection assembly further comprises an electrically conductive spring disposed between the flexible conductive element and the conductive connection element and in a compressed state to form an electrical connection between the flexible conductive element and the conductive connection element.

8. The cleaning apparatus of claim 7, wherein the cleaning device comprises a cleaning device,

the liquid storage container is provided with at least two connecting parts, and the conductive connecting piece is connected at the connecting parts in a matching way;

the conductive elastic piece comprises a fixed end and a free end, wherein the fixed end is arranged on the liquid storage container, the free end corresponds to the position of the connecting part, and the conductive connecting piece is propped against the free end, so that the conductive elastic piece is in a compressed state.

9. A cleaning device according to claim 1, wherein two sets of said liquid level detecting members are provided, and both sets of said liquid level detecting members are conducted through the liquid phase in a state where both of the conductive detecting members of the two sets of said liquid level detecting members are in contact with the liquid in said liquid storage container.

10. A liquid level detection assembly is characterized by comprising,

a conductive connector disposed on a liquid storage container for coupling to an external circuit;

a flexible conductive member connected to the conductive connection member; and

the conductive detection piece is connected to the flexible conductive piece and is made of a nonmetallic conductive material.

11. The fluid level detection assembly of claim 10, wherein the non-metallic conductive material is one of graphite, selenium, or silicon.

12. The fluid level detection assembly of claim 10,

the liquid level detection assembly further comprises a shell, the conductive detection piece is fixed in the shell, and an exposing port is formed in the shell so as to expose a part of the conductive detection piece;

the shell is internally provided with an adhesive layer, and the conductive detection piece is fixedly connected in the shell through the adhesive layer; alternatively, the fluid level detection assembly further includes a first seal that is interference fit between the housing and the conductive detection member to secure the conductive detection member.

13. The fluid level detection assembly of claim 10, wherein the flexible conductive element is a flexible circuit board or a wire.

14. The fluid level detection assembly of claim 10, further comprising a conductive spring disposed between the flexible conductive member and the conductive connector in a compressed state to form an electrical connection between the flexible conductive member and the conductive connector.