Portable surface cleaning device

Abstract

The utility model provides a portable surface cleaning device. The portable surface cleaning device comprises a main shell assembly; the fluid conveying system is at least partially arranged on the main shell assembly and conveys the foam to the surface to be cleaned; at least part of the fluid recovery system is arranged on the main shell assembly, and the fluid recovery system is used for extracting chippings and / or foam solution from the to-be-cleaned fabric surface and storing and recovering the chippings and / or foam solution; the fluid conveying system at least comprises a foam solvent supply box; the fluid recovery system at least comprises a recovery box; an extraction suction port in fluid communication with the recovery tank; the nozzle is arranged close to the extraction suction port and is communicated with fluid of the foam solvent supply box; the vacuumizing assembly is in fluid communication with the extraction suction port and the recycling box so as to generate working airflow entering the recycling box from the extraction suction port; and the foam generator is in fluid communication with the nozzle and the foam solvent supply box so as to generate a foam jet from the nozzle to the surface of the fabric to be cleaned.

Description

Technical Field

[0001] The present disclosure relates to a portable surface cleaning device. Background Art

[0002] In order to improve the cleaning effect, the household wet surface cleaner in the prior art adopts a foam cleaning method to increase the cleaning ability of the dirty surface to be cleaned. At present, users still want to control the operation of the surface cleaning device more efficiently, and need a surface cleaning device that can improve the use efficiency. Utility Model Content

[0003] According to one aspect of the present disclosure, there is provided a portable surface cleaning device, which is used to deliver cleaning foam to a fabric surface to be cleaned and extract debris and / or foam solution therefrom, and the device comprises: a main shell assembly; a fluid delivery system at least partially disposed on the main shell assembly, for delivering foam to the surface to be cleaned; a fluid recovery system at least partially disposed on the main shell assembly, for extracting debris and / or foam solution from the fabric surface to be cleaned and storing and recovering the same; the fluid delivery system comprises at least a foam solvent supply tank; the fluid recovery system comprises at least a recovery tank; an extraction suction port, which is fluidly connected to the recovery tank; a nozzle, which is disposed adjacent to the extraction suction port and is fluidly connected to the foam solvent supply tank; a vacuum assembly, which is fluidly connected to the extraction suction port and the recovery tank to generate a working airflow from the extraction suction port into the recovery tank; and a foam generator, which is fluidly connected to the nozzle and the foam solvent supply tank to generate a foam spray from the nozzle to the fabric surface to be cleaned.

[0004] According to one aspect of the present disclosure, there is provided a portable surface cleaning device, which is used to deliver cleaning foam to a fabric surface to be cleaned and extract debris and / or foam solution therefrom, and the device comprises: a main shell assembly; a fluid delivery system at least partially disposed on the main shell assembly, for delivering foam to the surface to be cleaned; a fluid recovery system at least partially disposed on the main shell assembly, for extracting debris and / or foam solution from the fabric surface to be cleaned and storing and recovering it; the fluid delivery system comprises at least a foam solvent supply tank; the fluid recovery system comprises at least a recovery tank; an extraction suction port, which is fluidly connected to the recovery tank; a nozzle, which is disposed adjacent to the extraction suction port and is fluidly connected to the foam solvent supply tank; a vacuum assembly, which is fluidly connected to the extraction suction port and the recovery tank to generate a working airflow from the extraction suction port into the recovery tank; and a foam generator, which is fluidly connected to the nozzle and the foam solvent supply tank to generate a foam spray from the nozzle to the fabric surface to be cleaned; the fluid delivery system also comprises a liquid supply tank and a liquid supply pump, and the liquid supply tank and the liquid supply pump are fluidly connected to the nozzle.

[0005] According to one aspect of the present disclosure, there is provided a portable surface cleaning device, which is used to deliver cleaning foam to a fabric surface to be cleaned and extract debris and / or foam solution therefrom, and the device comprises: a main housing assembly; a cleaning head assembly, the cleaning head assembly being fluidly connected to the main housing assembly via a flexible pipe; the extraction suction port and the nozzle being both located on the cleaning head assembly; a fluid delivery system at least partially disposed on the main housing assembly, for delivering foam to the surface to be cleaned; a fluid recovery system at least partially disposed on the main housing assembly, for extracting debris and / or foam solution from the fabric surface to be cleaned and storing and recovering the same; the fluid delivery system at least comprises a foam solvent supply tank; the fluid recovery system at least comprises a recovery tank; an extraction suction port, which is fluidly connected to the recovery tank; a nozzle, which is disposed adjacent to the extraction suction port and is fluidly connected to the foam solvent supply tank; a vacuum assembly, which is fluidly connected to the extraction suction port and the recovery tank to generate a working airflow from the extraction suction port into the recovery tank; and a foam generator, which is fluidly connected to the nozzle and the foam solvent supply tank to generate a foam spray from the nozzle to the fabric surface to be cleaned.

[0006] According to one aspect of the present disclosure, a portable surface cleaning device is provided, which is used to deliver cleaning foam to a fabric surface to be cleaned and extract debris and / or foam solution therefrom, and the device comprises: a main housing assembly having a foam solvent supply tank; a cleaning head assembly, wherein the cleaning head assembly is fluidically connected to the main housing assembly via a flexible pipeline; the extraction suction port and the nozzle are both located on the cleaning head assembly; a nozzle is arranged adjacent to the extraction suction port and is fluidically connected to the foam solvent supply tank; the nozzle has a central axis, the central axis is substantially perpendicular to an opening defining the nozzle, and when the portable surface cleaning device is working on the fabric surface to be cleaned, the central axis is substantially perpendicular to the fabric surface to be cleaned.

[0007] According to one aspect of the present disclosure, there is provided a portable surface cleaning device, which is used to deliver cleaning foam to a fabric surface to be cleaned and extract debris and / or foam solution therefrom, and the device comprises: a main housing assembly, the main housing assembly comprising a base housing for supporting the portable surface cleaning device; a foam generator located in a space defined by the base housing; a cleaning head assembly, the cleaning head assembly being fluidly connected to the main housing assembly via a flexible pipeline; the extraction suction port and the nozzle are both located on the cleaning head assembly; a fluid delivery system at least partially disposed on the main housing assembly, for delivering foam to the surface to be cleaned; the cleaning head assembly comprising a nozzle, which is fluidly connected to the foam solvent supply tank; a vacuum assembly, which is fluidly connected to the extraction suction port and the recovery tank to generate a working airflow from the extraction suction port into the recovery tank; and a foam generator, which is fluidly connected to the nozzle and the foam solvent supply tank to generate a foam spray from the nozzle to the fabric surface to be cleaned.

[0008] The above content is a relatively broad overview of the features and technical advantages of the examples provided according to the present disclosure, so as to better understand the detailed description below. Other features and advantages will be introduced below. The disclosed concepts and specific examples can be used as the basis for modifying or designing other structures or methods at any time to achieve the same purpose of the present disclosure. Such equivalent structures do not depart from the scope of the attached claims. From the following description, the characteristics, organizational structure and operation methods of the concepts disclosed in the utility model, as well as the related advantages, can be better understood in combination with the accompanying drawings. Each figure is provided for the purpose of illustration and description, and is not used to define the scope of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description 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.

[0010] Figure 1 A perspective schematic diagram of a portable surface cleaning device according to one aspect of the present disclosure is shown.

[0011] Figure 2 A front schematic diagram of a portable surface cleaning device according to one aspect of the present disclosure is shown.

[0012] Figure 3 A side schematic view of a portable surface cleaning device according to one aspect of the present disclosure is shown.

[0013] Figure 4 A front schematic view of a cleaning head assembly according to one aspect of the present disclosure is shown.

[0014] Figure 5A side schematic view of a cleaning head assembly according to one aspect of the present disclosure is shown.

[0015] Figure 6 A schematic perspective view of a cleaning head assembly according to another aspect of the present disclosure is shown.

[0016] Figure 7 A side schematic view of a cleaning head assembly according to another aspect of the present disclosure is shown.

[0017] Figure 8 A perspective schematic diagram of a portable surface cleaning device according to another aspect of the present disclosure is shown. DETAILED DESCRIPTION

[0018] The present disclosure is further described in detail below in conjunction with the accompanying drawings and embodiments. The various aspects of the present disclosure will be described more fully below with reference to the accompanying drawings. However, the present disclosure can be embodied in a variety of different forms and should not be construed as being limited to any specific structure or function introduced in the present disclosure. On the contrary, these aspects are provided to make the present disclosure comprehensive and complete, and to fully illustrate the scope of the present disclosure to those skilled in the art. Based on the teachings of the present disclosure, those skilled in the art should understand that the scope of the present disclosure is intended to cover any aspect disclosed herein, whether implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect of the present disclosure. For example, any aspect of this article can be used to implement a device or implement a method. In addition, the scope of the present disclosure is intended to cover devices or methods implemented using other structures, functions, or structures and functions in addition to or in addition to the various aspects set forth herein. It should be understood that any aspect disclosed herein can be embodied by one or more elements of the claims.

[0019] In the current market, portable fabric cleaning machines are becoming more and more popular among consumers due to their high efficiency in cleaning fabric furniture such as sofas. At present, it has become a trend to further improve the cleaning efficiency of traditional portable fabric cleaning machines. For example, the steam cleaning enhancement mode added to the traditional portable fabric cleaning machine can greatly reduce the dirt adhesion of stubborn stains on the surface of the fabric to be cleaned.

[0020] Steam cleaning enhanced mode usually uses a heater to heat the liquid to convert it into gas and apply it to the surface of the cloth to be cleaned, so as to soften and remove stubborn stains on the surface of the cloth through the action of high temperature. During the cleaning process, the stains peeled off from the surface of the cloth by the action of high temperature are recovered into the recovery tank of the portable cloth cleaning machine under the action of vacuum.

[0021] Generally, in the enhanced steam cleaning mode, the steam temperature applied to ordinary fabrics is very high, and these high-temperature steam will often produce different results when applied to fabric surfaces of different materials. For fabrics that are not suitable for high-temperature cleaning, this cleaning mode often brings the risk of deformation, shrinkage or even damage to the fabric.

[0022] The technical solution described herein can improve the cleaning efficiency of the cloth surface to be cleaned under the premise of safety. In some examples, by enabling the cloth cleaning machine to have a foam cleaning enhancement mode, a foam cleaning medium is applied to the cloth surface, and the applied foam is broken to produce an effect of stripping the stains from the cloth fibers, thereby avoiding certain damage to the cloth fibers caused by temperature.

[0023] Figure 1 One example of supporting a portable surface cleaning device according to various aspects of the present disclosure is shown.The term "surface cleaning device" may be used herein to describe various types of household portable surface cleaning devices.

[0024] Figure 1 A schematic diagram of a portable surface cleaning device designed according to certain aspects of the present disclosure is shown. As shown, the surface cleaning device includes a main housing assembly 100 and a cleaning head assembly 200, and the cleaning head assembly 200 is fluidically connected to the main housing assembly 100 through a hose 300. The main housing assembly 100 can selectively be installed with components of a fluid distribution system and a fluid recovery system to form a portable unit that can be moved by a user to different locations on the surface to be cleaned. The cleaning head assembly 200 is suitable for being handheld by a user to clean a relatively small area with a fabric fiber material and extract cleaning fluid and debris from the surface.

[0025] In one embodiment of the present disclosure, an exemplary Figure 1 A schematic diagram of the structure of a portable surface cleaning device is presented. As shown in the figure, the cleaning head assembly 200 and the hose 300 are in an operating or use position. The cleaning head assembly 200 is connected to the main housing assembly 100 through the hose 300 to form a working state of the portable surface cleaning device. It is worth noting that the cleaning head assembly 200 and the hose 300 can be stored on the main housing assembly 100 so that they can be easily carried and used when needed. This storage can be achieved by a fixture, a mounting seat or other appropriate structure to ensure safe storage and convenient removal of the cleaning head assembly 200 and the hose 300. When in use, the user can easily remove the cleaning head assembly 200 and the hose 300 from the main housing assembly 100 and connect them to the surface to be cleaned for effective cleaning operations.

[0026] The fluid dispensing system for a portable surface cleaning device may include the following components: a cleaning fluid supply tank 101 for storing supplied cleaning fluid; a foam solvent supply tank 102 for storing foam solvent; and a nozzle 202 disposed on a cleaning head assembly 200. In the flow path, a foam generator 400 is disposed between the foam solvent supply tank 102 and the nozzle 202 to foam the cleaning fluid to generate foam. The specific form and position of the foam generator 400 will be described in detail below.

[0027] The cleaning fluid stored by the cleaning liquid supply tank 101 can include one or more of any suitable cleaning liquids, including but not limited to water. The cleaning liquid supply tank 101 can be detachably mounted on the main housing assembly 100. A liquid pump (not shown) is provided in the flow path between the cleaning liquid supply tank 101 and the nozzle 202 to selectively provide the cleaning liquid to the nozzle 202.

[0028] The foam solvent supply tank 102 is supported on the main frame of the main housing assembly 100 and is provided with a longitudinally arranged observation window. The observation window is intended to facilitate the user to monitor the liquid level of the foam solvent solution to ensure that different foam solvent solutions are added in time when the liquid level is low, thereby ensuring the continuous and efficient operation of the portable surface cleaning device.

[0029] The fluid recovery system includes the following components: an extraction path, wherein a suction port 201 is provided on the cleaning head assembly 200, suitable for use on the surface to be cleaned; the fluid recovery system also includes a vacuum source (not shown), which may be in the form of a motor / fan assembly, which is in fluid communication with the suction port 201, for generating a working airflow to suck liquid and entrained debris through the extraction path. The vacuum device may include a second actuator, which is generally independent of the actuator of the foam generator 400 and exists independently on the main housing assembly 100. In addition, the fluid recovery system also includes a recovery tank 103 and a flexible hose 300, and the cleaning head assembly 200 is connected to the main housing assembly 100 in fluid communication with the flexible hose 300.

[0030] In one example, a solid-liquid separator may be provided in the recovery box 103 to separate the mixture of solids and liquids recovered by the surface cleaning equipment after cleaning the surface to be cleaned into solid-liquid in the solid-liquid separator, so that the separated solids are retained in the solid-liquid separator and the separated liquids are stored inside the recovery box 103.

[0031] The main housing assembly 100 includes a base housing 105, which is a housing having a flat bottom, which is suitable for being placed directly on a surface (such as a horizontal surface or a floor surface). A receiving space is formed inside the base housing 105. In one example, the space formed by the base housing 105 can accommodate the foam generator 400, such as Figure 3 shown.

[0032] Conveniently, a handle 104 is provided on the main housing assembly 100 and can be positioned opposite the flat bottom of the base housing 105 to enable a user to easily pick up and operate the surface cleaning apparatus from a horizontal or floor surface.

[0033] like Figure 2 As shown, the foam generator 400 provided in the portable surface cleaning device of the present disclosure preferably converts the foam solvent solution into foam. The present disclosure includes a foam generator 400 located inside the base shell 105, and the foam generator 400 is configured to distribute foam to the nozzle 202 of the cleaning head assembly 200; thus, when cleaning a relatively dirty cloth surface to be cleaned, the foam generator 400 provides foam (e.g., dense micro-foam) to the cloth surface to be cleaned. Suitable embodiments of the foam generator 400 are disclosed in Chinese Patents ZL202320137781.3 or ZL202223478181.8, the full text of the above patents is incorporated herein by reference and will not be repeated. Other foam generators 400 are also possible.

[0034] In one example, the cleaning head assembly 200 of the present disclosure includes an operating handle 204. The cleaning head assembly 200 is connected to the socket 106 of the main housing assembly 100 via a hose 300 connected to the operating handle 204. The socket 106 includes a foam outlet, which is in fluid communication with the outlet of the foam generator 400. The foam outlet is connected to the cleaning head assembly 200 via a foam conduit 401 located inside the hose 300. Specifically, the foam outlet is in fluid communication with the nozzle 202 via the foam conduit 401.

[0035] In one example, the cleaning head assembly of the present disclosure includes a head 203, which is connected to an operating handle 204 in a detachable or integral manner. The cleaning head assembly 200 includes an extraction suction port 201 located on the head 203, such as Figure 1 and Figure 4 As shown, the cross-sectional width of the head 203 from the extraction suction port to the connection with the operating handle 204 gradually decreases to ensure better vacuuming efficiency. The extraction suction port 201 provided on the head 203 is fluidically connected to the socket 106 of the main housing assembly 100 through the hose assembly 300. The socket 106 is connected to the suction inlet, and the suction inlet is fluidically connected to the vacuum assembly. When the vacuuming device is started, the extraction suction port 201 generates a vacuuming force, thereby recovering liquid and debris from the surface to be cleaned, and recovering the liquid and debris into the recovery box 103 of the main housing assembly 100 through the hose 300.

[0036] In one example, the extraction suction port 201 includes at least one scraper 205. The at least one scraper 205 preferably extends in the lateral direction of the extraction suction port 201, so that when the head moves back and forth along the surface to be cleaned, the scraper can squeeze the surface to be cleaned, scrape up the mixture of residual liquid (formed by the collapse of foam) and debris, and recover them through the extraction suction port 201 under the action of vacuum force. In one example, the extraction suction port 201 is a rectangular opening, and the at least one scraper 205 is located on at least one lateral edge of the rectangular opening.

[0037] The extraction nozzle 201 may also include other shapes and structures, and may include one or more outlets for cleaning fluid. In one non-limiting example, the nozzle 202 is configured to spray cleaning fluid to the top end when the foam generator is activated. Figure 3 and 4 Shown, the nozzle 202 is located below the extraction suction port 201 of the head. In this position, the nozzle 202 is located at the rear of the extraction suction port 201, so that during the user's use, foam will not be sucked into the extraction suction port 201 until it arrives at the surface to be cleaned.

[0038] The cleaning head assembly 200 includes a nozzle 202 located on the head 203, such as Figure 1-Figure 5 As shown. The nozzle 202 opened on the head 203 is in fluid communication with the socket 106 of the main housing assembly 100 through the hose assembly 300. Specifically, the socket 106 is in fluid communication with the foam generator 400 through the foam conduit 401, and is in fluid communication with the foam buried pipe in the hose assembly 300 through the socket 106, and is in fluid communication with the foam conduit 401 on the head 203, thereby achieving fluid communication between the nozzle 202 and the foam generator 400. When the foam generator 400 is started, pressure is generated at the nozzle 202, thereby delivering foam to the surface to be cleaned.

[0039] The direction of foam spraying is configured to be substantially perpendicular to the direction of the surface to be cleaned, which is more convenient for user operation. In a specific example, the extraction suction port 201 has a suction port centerline O1, which is perpendicular to the opening defining the extraction suction port 201; the nozzle 202 has a nozzle centerline O2, which is perpendicular to the opening defining the nozzle 202 and substantially parallel to the suction port centerline. Such a parallel setting is more convenient for user operation, increases the pertinence of foam spraying, and facilitates the cooperative consistency of sucking dirt and applying foam.

[0040] The cleaning head assembly 200 includes an actuator 206, which is operable by a user to start and stop the foam generator 400 to generate a foam spray from the nozzle 202 to the cloth surface to be cleaned. In one example, the operation of the actuator 206 is achieved by a user pressing.

[0041] In one example, in order to facilitate the user's operation, the actuator 206 is located at the operating handle 204 of the cleaning head assembly 200. When the user uses it, the foam can be sprayed by simply actuating the actuator 206.

[0042] When the foam generator 400 is located in the base housing, some loss of foam is possible because the foam generator 400 outlet and the nozzle 202 pass through the foam conduit in the hose 300. Therefore, in another example, the set point of the foam generator 400 is set on the cleaning head assembly 200.

[0043] In one example, the foam generator is disposed at one end of the operating handle 204. Figure 6-8 As shown, the foam generator is disposed in a receiving space formed by a rear end housing 207 of the user's hand operating portion on the operating handle 204, and the conveying distance from the outlet of the foam generator to the nozzle 202 is shortened.

[0044] Usually, the foam generator has a certain weight. In order to balance the operating center of gravity of the cleaning head, in another example, the foam generator can also be arranged in front of the user's head operating part on the operating handle 204 and located behind the head.

[0045] The surface cleaning device of this embodiment also includes a control device, wherein the liquid pump is fluidically connected to the cleaning liquid supply tank 101, and the liquid pump and the foam generator are both connected to the control device to deliver cleaning liquid or foam to the nozzle 202 based on the trigger signal of the actuator.

[0046] In the description of this specification, the description with reference to the terms "an example / method", "some examples / methods", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the example / method or example are included in at least one example / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same examples / methods or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more examples / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different examples / methods or examples described in this specification and the features of different examples / methods or examples, without contradiction.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A portable surface cleaning device, characterized in that: Portable surface cleaning equipment is used to deliver cleaning foam to the fabric surface to be cleaned and extract debris and / or foam solution from it. The device includes: a main housing assembly; a fluid delivery system disposed at least in part on the main housing assembly for delivering foam to the surface to be cleaned; a fluid recovery system disposed at least in part on the main housing assembly for extracting debris and / or foam solution from the fabric surface to be cleaned and storing for recovery; The fluid delivery system includes at least a foam solvent supply tank; The fluid recovery system comprises at least a recovery tank; an extraction suction port, in fluid communication with the recovery tank; a nozzle disposed adjacent to the extraction suction port and in fluid communication with the foam solvent supply tank; a vacuum assembly in fluid communication with the extraction suction port and the recovery tank to generate a working airflow from the extraction suction port into the recovery tank; and A foam generator is in fluid communication with the nozzle and the foam solvent supply tank to generate a foam spray from the nozzle to the fabric surface to be cleaned.

2. The portable surface cleaning device according to claim 1, characterized in that The utility model comprises a cleaning head, which is in fluid communication with the main housing assembly through a flexible pipeline; the extraction suction port and the nozzle are both located on the cleaning head.

3. The portable surface cleaning device of claim 2, wherein: The flexible conduit includes a conduit in fluid communication with the foam generator.

4. The portable surface cleaning device of claim 2, wherein: An operating handle is included, through which the cleaning head and the flexible pipe are connected and fluid communication is achieved.

5. The portable surface cleaning device of claim 4, wherein: An actuator is included, and the actuator is located on the operating handle to selectively operate the foam generator.

6. The portable surface cleaning device of claim 1, wherein: A second actuator is included, the second actuator being located on the main housing assembly to selectively operate a vacuum assembly independent of the foam generator.

7. The portable surface cleaning device of claim 5, wherein: The fluid delivery system includes a liquid supply tank and a liquid supply pump, which are in fluid communication with the nozzle.

8. The portable surface cleaning device of claim 1, wherein: The main housing assembly includes a base housing for supporting the portable surface cleaning device; the foam generator is located in a space defined by the base housing.

9. The portable surface cleaning device of claim 1, wherein: The extraction suction opening is located in front of the nozzle on the cleaning head.

10. The portable surface cleaning device of claim 1, wherein: The nozzle has a central axis, which is substantially perpendicular to the opening defining the nozzle, and when the portable surface cleaning device is operating on the fabric surface to be cleaned, the central axis is substantially perpendicular to the fabric surface to be cleaned.

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