Floor brush assembly
The modularly designed floor brush assembly solves the problems of wear and tear and high maintenance costs caused by the increasing complexity of wet handheld cleaning devices for home use. It enables functional expansion and reduced maintenance costs, meeting the diverse cleaning needs of users.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU XIAOSHUN TECH CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-10
AI Technical Summary
Existing wet handheld household cleaning devices are prone to wear and tear due to their complex functions, resulting in high maintenance costs. Furthermore, users need to replace the entire device to obtain new functions, leading to resource waste and high costs.
Design a floor brush assembly including a base, brush rollers, a liquid supply tank, and an external module. The external module is detachably connected to the base to provide additional functions, such as foam cleaning. Functional expansion is achieved through modular design. The base and the external module are electrically connected to achieve function recognition and control.
The modular design reduces the risk of overall equipment wear and tear and lowers maintenance costs. Users can selectively install external modules as needed to meet diverse cleaning requirements, reducing the frequency and cost of equipment replacement.
Smart Images
Figure CN224474386U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a floor brush assembly, belonging to the field of cleaning equipment technology. Background Technology
[0002] In the home, handheld cleaning devices with wet cleaning functions, capable of deep cleaning floors, have been widely adopted in recent years.
[0003] Currently, there is a wide variety of wet handheld cleaning devices for home use with different functions on the market. These handheld cleaning devices include different functions, and some of these components may have more powerful and efficient cleaning functions than conventional components.
[0004] For example, in recent years, devices with different functions such as hot water cleaning, steam cleaning, and foam cleaning have emerged. These functions are usually integrated into a single model of handheld cleaning device, meaning that once the function is defined, it is virtually impossible to switch to other functions later. Furthermore, the more complex the functions, the more prone they are to wear and tear over time or the need for maintenance. Typically, if one component malfunctions, it can severely impact the operation of a handheld cleaning device, or even cause the entire machine to fail. If users need new functions, they may replace the entire handheld cleaning device with a new one. Alternatively, they may send it to a repair service for after-sales repair, but this process can involve high logistics costs, or if the repair costs exceed a certain amount, the user may choose to scrap the handheld cleaning device. Utility Model Content
[0005] This disclosure provides a floor brush component.
[0006] According to one aspect of this disclosure, a floor brush assembly is provided, comprising:
[0007] The substrate having a receiving cavity;
[0008] A brush roller, which is rotatably disposed within a receiving cavity of the substrate and is configured to clean dirt particles from the surface to be cleaned;
[0009] A liquid supply tank, disposed on the substrate and configured to supply cleaning fluid to the brush roller; and
[0010] An external module is disposed above the liquid supply tank and configured to form a liquid connection with the liquid supply tank;
[0011] The liquid supply tank and the base together form an upward-facing module receiving part, and the external module is vertically fitted into the module receiving part from the top side to the bottom side of the floor brush assembly.
[0012] According to at least one embodiment of the floor brush assembly of the present disclosure, the module receiving portion includes a socket formed on the substrate, wherein the floor brush assembly further includes a main printed circuit board and a first electrical connector, the main printed circuit board being mounted in the substrate, the first electrical connector being electrically connected to the main printed circuit board and disposed within the socket.
[0013] According to at least one embodiment of the floor brush assembly of the present disclosure, the external module includes a plug on which a second electrical connector is disposed; when the external module is fitted into the module receiving portion, the plug is connected to the socket such that the first electrical connector and the second electrical connector make contact.
[0014] According to at least one embodiment of the floor brush assembly of the present disclosure, the socket includes a sidewall, a first electrical connector is disposed on the sidewall of the socket, and a second electrical connector is disposed on the side of the plug.
[0015] According to at least one embodiment of the floor brush assembly of this disclosure, the liquid supply tank includes an unlock button for unlocking and removing the liquid supply tank from the base; the external module includes an outer cover, an inner side portion, and a positioning groove; at least a portion of the outer surface of the outer cover is formed as at least a portion of the appearance of the external module; the inner side portion is located on the opposite side of the outer cover; the positioning groove is formed on the inner side portion, and when the external module is engaged with the liquid supply tank, the unlock button is inserted into the positioning groove from top to bottom.
[0016] According to at least one embodiment of the floor brush assembly of the present disclosure, the base or liquid supply tank includes a positioning groove extending downward from the upper surface of the base or liquid supply tank; the external module includes a positioning protrusion formed on the inner side of the external module and extending in the vertical direction of the external module; when the external module is combined with the liquid supply tank, the positioning protrusion is inserted into the positioning groove from top to bottom.
[0017] According to at least one embodiment of the floor brush assembly of the present disclosure, the module receiving portion includes at least an outer surface portion of a liquid supply tank, and when an external module is inserted into the module receiving portion, at least a portion of the outer surface portion fits seamlessly with the inner surface portion.
[0018] According to at least one embodiment of the floor brush assembly of the present disclosure, the external module includes a foam dispensing module configured to spray foam onto the surface to be cleaned in front of the brush roller.
[0019] According to at least one embodiment of the floor brush assembly of this disclosure, the foam dispensing module includes:
[0020] A foam generator is disposed on the upper rear side of the outer cover and forms part of the appearance of the foam dispensing module for generating foam;
[0021] A dispensing port for discharging foam generated by a foam generator outwards, wherein the dispensing port is located on the front side of the outer cover to dispense foam towards the front of the floor brush assembly; and
[0022] A foam delivery pipe, which connects the foam generator and the outlet and is located between the outer cover and the inner side, has an inlet end that matches the foam generator and extends from the inlet end to the outlet.
[0023] According to at least one embodiment of the floor brush assembly of the present disclosure, the foam generator extends laterally at the middle of the upper rear side of the outer cover, and the foam generator is clamped from both ends by two clamping portions provided on the outer cover. Attached Figure Description
[0024] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0025] Figure 1 This is a schematic diagram of the structure of a floor brush assembly according to one embodiment of the present disclosure.
[0026] Figure 2 This is a schematic diagram of the structure of a floor brush body according to one embodiment of the present disclosure.
[0027] Figure 3 This is a schematic diagram of the structure of an external module according to one embodiment of the present disclosure.
[0028] Figure 4 This is a structural schematic diagram of an external module according to one embodiment of the present disclosure from another angle.
[0029] Figure 5 This is a schematic diagram of the circuit connection structure of a floor brush assembly according to one embodiment of the present disclosure.
[0030] The specific labels in the attached figures are as follows:
[0031] 100 matrix
[0032] 110 socket
[0033] 120 positioning groove
[0034] 200 brush rollers
[0035] 300 Liquid Supply Tank
[0036] 310 Unlock button
[0037] 400 external module
[0038] 410 plug
[0039] 420 printed circuit boards
[0040] 430 Second Electrical Connector
[0041] 440 outer cover
[0042] 450 Inner side
[0043] 460 positioning slot
[0044] 470 positioning protrusion
[0045] 480 Foam Generator
[0046] 490 Launch Port
[0047] 500 main printed circuit boards
[0048] 600 First electrical connector. Detailed Implementation
[0049] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.
[0050] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0051] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.
[0052] Existing wet surface cleaning equipment, in addition to conventional wet floor cleaning functions, may integrate one or more of the following functions: hot water cleaning, steam cleaning, and foam cleaning. However, these functions are usually not detachably integrated into a single model of handheld cleaning equipment.
[0053] As the functionality of wet surface cleaning equipment increases, it also becomes more prone to wear and tear and requires maintenance. Typically, a malfunction in one component can severely impact the operation of a handheld cleaning device, or even cause the entire machine to fail. Repairing such equipment often incurs significant costs, sometimes forcing users to scrap the device altogether.
[0054] Furthermore, when users may need new features, they may replace their entire handheld home cleaning equipment with a new one, which also incurs significant costs.
[0055] Overall, designing a new surface cleaning device to overcome the above problems has become an urgent technical issue.
[0056] Figure 1 This is a schematic diagram of the structure of a floor brush assembly according to one embodiment of the present disclosure. Figure 2 This is a schematic diagram of the structure of a floor brush body according to one embodiment of the present disclosure. Figure 3 This is a schematic diagram of the structure of an external module 400 according to one embodiment of the present disclosure. Figure 4 This is a structural schematic diagram of an external module 400 according to one embodiment of the present disclosure from another angle.
[0057] like Figures 1 to 4 As shown, this disclosure provides a floor brush assembly that can be mounted on the main body of a surface cleaning device to form the surface cleaning device together with the main body. Since the basic structure of such surface cleaning devices (e.g., wet surface cleaning devices) is well known to those skilled in the art, this disclosure will not describe the structure in detail.
[0058] The structure of the floor brush assembly will be described in detail below with reference to the accompanying drawings.
[0059] like Figures 1 to 3 As shown, the floor brush assembly of this disclosure may include components such as a base 100, a brush roller 200, a liquid supply tank 300, and an external module 400. The base 100, brush roller 200, and liquid supply tank 300 can be formed into the floor brush body. In other words, all components except the external module 400 together form the floor brush body.
[0060] When using the floor brush assembly disclosed herein, additional functions provided by the external module can be used, or the external module can be removed, and only the basic wet floor cleaning function provided by the floor brush body can be used.
[0061] In other words, the floor brush component disclosed herein only connects to the corresponding external module when the corresponding function is needed. Taking the foam floor cleaning function as an example, when the user needs the foam floor cleaning function, an external module with foam floor cleaning function can be installed on the floor brush body. At this time, the combined floor brush component will have the foam floor cleaning function.
[0062] See again Figures 1 to 4 The base 100 of this disclosure is formed as the housing of the floor brush assembly. Specifically, the base 100 is formed as the bottom of the floor brush body, and a movable wheel can be installed on the base 100 to facilitate the movement of the floor brush assembly on the surface to be cleaned.
[0063] In addition, other components of the floor brush assembly can also be housed inside the base.
[0064] The substrate 100 of this disclosure has a receiving cavity; in a preferred embodiment, the receiving cavity is formed at the front end of the substrate 100 and has a downward opening. A brush roller 200 is rotatably disposed within the receiving cavity of the substrate 100, and at least a portion of the brush roller 200 is positioned below the opening of the receiving cavity, thereby enabling the brush roller 200 to contact the surface to be cleaned so that, as the brush roller 200 rotates, it can clean (e.g., adsorb) dirt particles on the surface to be cleaned.
[0065] Specifically, the brush roller 200 of this disclosure can be mounted on the base 100 by a support frame, thereby enabling the brush roller 200 to contact the surface to be cleaned and support the base 100, such that the lower surface of the base 100 is spaced at a preset distance from the surface to be cleaned.
[0066] A liquid supply tank 300 is disposed on the base 100 and configured to supply cleaning fluid to the brush roller 200. Specifically, the liquid supply tank 300 of this disclosure is configured as a storage container, and the cleaning fluid can be clean water or a mixture of clean water and cleaning agent. This disclosure does not limit the type of cleaning fluid.
[0067] In another implementation, the liquid supply tank 300 can also be located in the main body of the surface cleaning device, in which case the liquid supply tank 300 can supply cleaning fluid to the floor brush assembly via a pipeline.
[0068] like Figure 1 As shown, the external module 400 of this disclosure is disposed above the liquid supply tank 300 and configured to form a liquid connection with the liquid supply tank 300. That is, when the external module 400 is disposed on the floor brush body, the liquid supply tank 300 can also provide cleaning fluid to the external module 400. In addition, the external module 400 of this disclosure can also be configured to be electrically connected to the floor brush body, thereby enabling the external module 400 to obtain electrical energy from the floor brush body.
[0069] In the structure disclosed herein, when the external module 400 is in fluid communication with the liquid supply tank 300, it can be achieved using a water-filling component used when a sweeping robot docks with a base station. Since this water-filling component is already existing technology in the art, it will not be described in detail here.
[0070] Structurally, the liquid supply tank 300 and the base 100 together form an upward-facing module receiving part, and the external module 400 is vertically fitted into the module receiving part from the top to the bottom of the floor brush assembly.
[0071] In other words, when the floor brush assembly of this disclosure is in use, if the external module 400 is required, the external module 400 can be installed on the floor brush body from top to bottom, at which time the external module 400 can cooperate with the module receiving part. When the external module 400 is not needed, the external module 400 can be removed from the floor brush body from top to bottom to reduce the weight of the floor brush assembly and facilitate user operation of the floor brush assembly and surface cleaning equipment.
[0072] In one specific embodiment, the module receiving portion includes a socket 110 formed on the base 100; the floor brush assembly also includes a main printed circuit board 500 and a first electrical connector 600, the main printed circuit board 500 being mounted in the base 100, the first electrical connector 600 being electrically connected to the main printed circuit board 500 and disposed in the socket 110.
[0073] Accordingly, the external module 400 includes a plug 410 and a secondary printed circuit board 420. A second electrical connector 430 is provided on the plug 410 and connects to the secondary printed circuit board 420. When the external module 400 is fitted into the module receiving portion, the plug 410 connects to the socket 110, allowing the first electrical connector 600 and the second electrical connector 430 to contact. Thus, in the floor brush assembly of this disclosure, the floor brush body can be energized with the external module 400. At this time, after the external module 400 is installed on the floor brush body, the control system of the surface cleaning equipment will be able to recognize that the external module 400 has been connected and is in normal use. Correspondingly, the control system of the surface cleaning equipment will be able to provide more control modes to facilitate user operation of the surface cleaning equipment.
[0074] Taking the external module 400 with foam cleaning function as an example, when the external module 400 is installed on the floor brush body, the surface cleaning equipment will know that the external module 400 has been installed and that the installed external module 400 is an external module with foam cleaning function. At this time, the control system of the surface cleaning equipment will provide the user with the option of whether to spray foam, and the option to set the amount of foam sprayed when foam needs to be sprayed. After the user completes the setting, the control system of the surface cleaning equipment will control the external device 400 to provide foam to the outside, thereby meeting the user's needs.
[0075] Similarly, when the external module 400 is an external module 400 with a hot water function or a steam function, the control system of the surface cleaning equipment will control these external modules 400 to provide hot water or steam to the outside, so that the surface to be cleaned can be cleaned more thoroughly.
[0076] Those skilled in the art will understand that, after electrical connection, the first electrical connector 600 and the second electrical connector 430 described above can complete signal transmission and power supply between the brush body and the external module 400. In other words, both the first electrical connector 600 and the second electrical connector 430 of this disclosure can include at least three terminals, two of which can be used for power supply, and the other terminals are used for signal transmission. Thus, the control system of the surface cleaning equipment can determine whether the external module is in place and the functions of the external module based on the response information (e.g., ID information) of the external module.
[0077] In a preferred embodiment, the socket 110 includes a sidewall, a first electrical connector 600 is disposed on the sidewall of the socket 110, and a second electrical connector 430 is disposed on the side of the plug 410. Thus, when the plug 410 of the present disclosure is installed in the socket 110, the plug 410 can be stably held by the socket 110, and correspondingly, the first electrical connector 600 and the second electrical connector 430 can also be stably connected without being accidentally disconnected.
[0078] Structurally, the liquid supply tank 300 of this disclosure includes an unlocking button 310, which allows the liquid supply tank 300 to be unlocked and detached from the base 100 by operating the unlocking button 310. The structure of the unlocking button 310 can be implemented using existing technologies, which will not be described in detail here.
[0079] At this time, the external module 400 includes an outer cover 440, an inner side portion 450, and a positioning groove 460; at least a portion of the outer surface of the outer cover 440 is formed as at least a portion of the appearance of the external module 400; the inner side portion 450 is located on the opposite side of the outer cover 440; the positioning groove 460 is formed on the inner side portion 450, and when the external module 400 is engaged with the liquid supply tank 300, the unlock button 310 is inserted into the positioning groove 460 from top to bottom.
[0080] In other words, the outer cover 440 of this disclosure is formed as the upper surface of the external module 400, and correspondingly, the inner side portion 450 is formed as the lower surface of the external module 400. At this time, the outer cover 440 can be fixed together with the inner side portion 450 and form the housing of the external module 400.
[0081] Furthermore, the outer cover 440 of this disclosure is located below the inner side portion 450, and an accommodating space is formed between the outer cover 440 and the inner side portion 450, which can be used to accommodate components such as the sub-printed circuit board 420.
[0082] Based on the above structure, the external module 400 of this disclosure is disposed behind the floor brush body. The lower surface of the external module 400 can fit tightly against the upper surface of the floor brush body. Thus, on the one hand, the floor brush assembly has a low overall height, and on the other hand, the external module 400 can be firmly fixed to the floor brush body.
[0083] In this disclosure, the base 100 includes a positioning groove 120 that extends downward from the upper surface of the base 100; the external module 400 includes a positioning protrusion 470 that is formed on the inner side portion 450 of the external module 400 and extends in the vertical direction of the external module 400; when the external module 400 is combined with the liquid supply tank 300, the positioning protrusion 470 is inserted into the positioning groove 120 from top to bottom.
[0084] Therefore, the cooperation between the positioning protrusion 470 and the positioning groove 120 effectively prevents the external module 400 from sliding relative to the floor brush body in the horizontal direction, which can be the front-back direction or the left-right direction. In other words, the cooperation between the positioning protrusion 470 and the positioning groove 120 ensures that the external module 400 is firmly fixed.
[0085] In another embodiment of this disclosure, the positioning groove 120 may also be formed on the liquid supply tank 300. Specifically, the positioning groove 120 extends downward from the upper surface of the liquid supply tank 300. In this case, the positioning groove 120 can also cooperate with the positioning protrusion 470, so that the external module 400 is firmly positioned or fixed.
[0086] In a preferred embodiment, the module receiving portion includes at least the outer surface of the liquid supply tank 300, and when the external module 400 is inserted into the module receiving portion, at least a portion of the outer surface fits seamlessly with the inner surface 450. The outer surface of the liquid supply tank 300 may be a portion of the upper surface of the liquid supply tank 300, thereby allowing the external module 400 to be tightly mounted on the floor brush body.
[0087] The external module 400 of this disclosure may include a foam dispensing module configured to spray foam onto the surface to be cleaned in front of the brush roller 200. Thus, the external module 400 of this disclosure has a foam cleaning function, and correspondingly, by providing foam to the surface to be cleaned, the surface cleaning equipment can achieve a better cleaning effect.
[0088] Specifically, the foam distribution module disclosed herein includes components such as a foam generator 480, an outlet 490, and a foam delivery pipe.
[0089] The foam generator 480 is disposed on the upper rear side of the outer cover 440 and forms part of the appearance of the foam dispensing module for generating foam. Specifically, the foam generator 480 of this disclosure may include a motor that can be connected to a secondary printed circuit board 420, thereby enabling the control system of the surface cleaning equipment to control the start, stop, and speed of the motor. Moreover, the liquid used by the foam generator of this disclosure comes from the liquid supply tank 300, and the foaming agent (cleaning agent) used comes from the cleaning agent storage tank, which is disposed within the receiving space formed by the outer cover 440 and the inner side 450.
[0090] Based on this, the control system of the surface cleaning equipment can control the motor to rotate at a preset speed, thereby mixing the foaming agent and water and introducing air to form a large amount of foam.
[0091] The foam delivery pipeline connects the foam generator 480 and the outlet 490, so that the foam generated by the foam generator 480 can be delivered to the outlet via the foam delivery pipeline, and then the foam can be sprayed onto the surface to be cleaned through the outlet 490.
[0092] Specifically, the foam delivery conduit is located between the outer cover 440 and the inner side 450, and has an inlet end that matches the foam generator 480. The foam delivery conduit extends from the inlet end to the outlet 490.
[0093] The discharge port 490 is used to deliver the foam generated by the foam generator 480 outward. The discharge port 490 is located on the front side of the outer cover 440 to discharge foam in front of the floor brush assembly. At this time, the surface cleaning device can use the foam to clean the surface to be cleaned during its forward movement. At the same time, the foam can also pre-soften stubborn stains on the surface to be cleaned, making these stains easier to remove.
[0094] The foam generator 480 extends laterally at the middle of the upper rear side of the outer cover 440, and is clamped from both ends by two clamping parts provided on the outer cover 440, thereby allowing the foam generator 480 of this disclosure to be easily replaced and maintained.
[0095] In a preferred embodiment, when the emission port 490 is close to the front end of the floor brush assembly so that the external module can engage with the module housing, the emission port 490 can emit foam toward the front of the brush roller 200.
[0096] Based on the above structure, the surface cleaning device disclosed herein includes several external modules 400 that may require periodic after-sales service throughout the device's lifespan. This allows the surface cleaning device to perform different functional selections, including conventional cleaning, hot water cleaning, steam cleaning, and foam cleaning. The modular design of the surface cleaning device allows for the disassembly and replacement of individual components, thereby enhancing the device's functional versatility, providing users with more options, and facilitating later maintenance and replacement. These functionally different replacement modules can be embedded in fitting spaces of the same shape, increasing the adaptability of the floor brush assembly to different cleaning environments.
[0097] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0099] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A floor brush assembly, characterized in that, include: The substrate having a receiving cavity; A brush roller, which is rotatably disposed within a receiving cavity of the substrate and is configured to clean dirt particles from the surface to be cleaned; A liquid supply tank is disposed on the substrate and configured to supply cleaning liquid to the brush roller; as well as An external module is disposed above the liquid supply tank and configured to form a liquid connection with the liquid supply tank; The liquid supply tank and the base together form an upward-facing module receiving part, and the external module is vertically fitted into the module receiving part from the top side to the bottom side of the floor brush assembly.
2. The floor brush assembly according to claim 1, characterized in that, The module housing includes a socket formed on the substrate, wherein the floor brush assembly further includes a main printed circuit board and a first electrical connector, the main printed circuit board being mounted in the substrate, the first electrical connector being electrically connected to the main printed circuit board and disposed within the socket.
3. The floor brush assembly according to claim 2, characterized in that, The external module includes a plug, on which a second electrical connector is provided; when the external module is fitted into the module receiving part, the plug is connected to the socket so that the first electrical connector and the second electrical connector make contact.
4. The floor brush assembly according to claim 3, characterized in that, The socket includes a sidewall, the first electrical connector is disposed on the sidewall of the socket, and the second electrical connector is disposed on the side of the plug.
5. The floor brush assembly according to claim 1, characterized in that, The liquid supply tank includes an unlock button for unlocking and removing the liquid supply tank from the base; the external module includes an outer cover, an inner side portion, and a positioning groove; at least a portion of the outer surface of the outer cover forms at least a portion of the appearance of the external module; the inner side portion is located on the opposite side of the outer cover; the positioning groove is formed on the inner side portion, and when the external module is engaged with the liquid supply tank, the unlock button is inserted into the positioning groove from top to bottom.
6. The floor brush assembly according to claim 5, characterized in that, The substrate or liquid supply tank includes a positioning groove that extends downward from the upper surface of the substrate or liquid supply tank; the external module includes a positioning protrusion that is formed on the inner side of the external module and extends along the vertical direction of the external module; when the external module is combined with the liquid supply tank, the positioning protrusion is inserted into the positioning groove from top to bottom.
7. The floor brush assembly according to claim 5, characterized in that, The module receiving portion includes at least the outer surface of the liquid supply tank, and when an external module is inserted into the module receiving portion, at least a portion of the outer surface fits seamlessly with the inner surface.
8. The floor brush assembly according to claim 5, characterized in that, The external module includes a foam dispensing module configured to spray foam onto the surface to be cleaned in front of the brush roller.
9. The floor brush assembly according to claim 8, characterized in that, The foam distribution module includes: A foam generator is disposed on the upper rear side of the outer cover and forms part of the appearance of the foam dispensing module for generating foam; A dispensing port for discharging foam generated by a foam generator outwards, wherein the dispensing port is located on the front side of the outer cover to dispense foam towards the front of the floor brush assembly; and A foam delivery pipe, which connects the foam generator and the outlet and is located between the outer cover and the inner side, has an inlet end that matches the foam generator and extends from the inlet end to the outlet.
10. The floor brush assembly according to claim 9, characterized in that, The foam generator extends laterally to the middle of the upper rear side of the outer cover, and is clamped from both ends of the foam generator by two clamping parts provided on the outer cover.