CN111481099B

CN111481099B - Cleaning device

Info

Publication number: CN111481099B
Application number: CN202010267918.8A
Authority: CN
Inventors: 范远; 魏敏
Original assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Current assignee: Jiangsu Midea Cleaning Appliances Co Ltd
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2021-11-12
Anticipated expiration: 2038-12-10
Also published as: CN109567666A; CN109567666B; CN111481099A

Abstract

The invention discloses a cleaning device, comprising: the horizontal type vacuum cleaner comprises a vertical type machine assembly, a horizontal type machine assembly and a handheld machine assembly, wherein the horizontal type machine assembly comprises a first suction device, the handheld machine assembly comprises a second suction device and a dust cup component, the horizontal type machine assembly is detachably connected with the vertical type machine assembly, the handheld machine assembly is detachably connected with the horizontal type machine assembly, and when the horizontal type machine assembly is installed on the vertical type machine assembly, the horizontal type machine assembly moves along with the vertical type machine assembly; when the hand held machine assembly is installed on the horizontal machine assembly, the air suction port of the hand held machine assembly is communicated with the horizontal machine assembly, and the first suction device is arranged at the downstream of the dust cup component. The cleaning device for the cleaning equipment is provided with a plurality of using modes.

Description

Cleaning device

The application is a divisional application of an invention patent application with the application number of 201811505560.7, the application date of 2018-12-10 and the name of 'cleaning equipment'.

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to cleaning equipment.

Background

Some dust collectors in the related art have single use modes, and are difficult to meet various use requirements of users. To solve the technical problem to some extent, there are some vacuum cleaners with two-in-one usage mode in the related art, which mainly include a hand-held machine assembly and a vertical machine assembly, wherein a dust cup and a suction motor are arranged on the hand-held machine assembly, when the hand-held machine assembly is detached from the vertical machine assembly, a hand-held cleaning mode can be realized, and when the hand-held machine assembly is mounted on the vertical machine assembly, the vertical cleaning mode can be realized. For these vacuum cleaners, in order to ensure the portability of the handheld cleaning mode, a suction motor with smaller power needs to be selected, thereby affecting the cleaning effect of the upright cleaning mode, and on the contrary, in order to ensure the cleaning effect of the upright cleaning mode, a suction motor with larger power needs to be selected, thereby affecting the portability of the handheld cleaning mode. In short, these vacuum cleaners in the related art have difficulty in taking care of both portability in the hand-held cleaning mode and cleaning effect in the upright cleaning mode.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. To this end, the invention proposes a cleaning device having a plurality of modes of use.

A cleaning apparatus according to an embodiment of the present invention includes: the vertical machine assembly comprises a push rod and a floor brush, and the floor brush is arranged at the lower end of the push rod; a horizontal machine assembly including a first suction device and a wheel base assembly for carrying the first suction device and including wheels, the horizontal machine assembly being detachably connected to the vertical machine assembly, the horizontal machine assembly moving with the vertical machine assembly when the horizontal machine assembly is mounted to the vertical machine assembly; a handset assembly including a second suction device disposed downstream of the dirt cup assembly, a dirt cup assembly, and a handle, the handset assembly having an air intake communicating with a dirty air inlet of the dirt cup assembly, the handset assembly being removably connected to the horizontal machine assembly, wherein the air intake of the handset assembly communicates with the horizontal machine assembly when the handset assembly is mounted to the horizontal machine assembly, and the first suction device is disposed downstream of the dirt cup assembly, wherein the vertical machine assembly has at least one of an upright mode of use in which the horizontal machine assembly, the handset assembly, and the horizontal machine assembly are assembled for use, and a handheld mode of use in which at least one of the first suction device and the second suction device is used as a source of suction, in the horizontal use mode, the horizontal machine assembly and the hand held machine assembly are assembled together and used separately from the vertical machine assembly, using at least one of the first suction device and the second suction device as a suction source, and in the portable use mode, the hand held machine assembly is used separately from the horizontal machine assembly and the vertical machine assembly, using the second suction device as a suction source.

The cleaning device provided by the embodiment of the invention has multiple use modes.

In some embodiments, the power of the second pumping device is less than the power of the first pumping device.

In some embodiments, the second pumping unit comprises a dc motor, the handset assembly comprises a rechargeable battery connected to the dc motor, the first pumping unit comprises an ac motor, and the horizontal machine assembly comprises an electrical connection to the ac motor, the electrical connection being electrically connected to the rechargeable battery when the handset assembly is mounted to the horizontal machine assembly.

In some embodiments, the cleaning apparatus has a first mode of operation in which the second suction device is on and the first suction device is off and the airstream created by the dirt cup assembly is directed to the second suction device, and a second mode of operation in which the first suction device is on and the second suction device is off and the airstream created by the dirt cup assembly is directed to the first suction device when the hand piece assembly is mounted to the horizontal machine assembly.

In some embodiments, the wheel seat assembly comprises a seat body, the wheel is rotatably disposed on the seat body, the first suction device is disposed in the seat body, the outer surface of the seat body has an air inlet and an air outlet, the seat body has an air supply channel therein communicating between the air inlet and the air outlet, and the air outlet is in butt-joint communication with the air suction port when the hand-held machine assembly is mounted on the horizontal machine assembly.

In some embodiments, the ground brush is provided with a dust suction port, the push rod is internally provided with an air inlet channel communicated to the dust suction port, and when the horizontal machine assembly is installed on the vertical machine assembly, the air inlet is directly communicated to the air inlet channel or is communicated to the air inlet channel through an external hose.

In some embodiments, the hand piece assembly is removably connected to the upright assembly, the hand piece assembly is disposed at the upper end of the push rod when the hand piece assembly is mounted to the upright assembly, and the air intake port is in abutting communication with the air intake passage.

In some embodiments, the cleaning apparatus further comprises an air duct switching valve that switches one of the second suction device and the first suction device to communicate with the clean air outlet of the dirt cup assembly when the hand piece assembly is mounted to the horizontal machine assembly.

In some embodiments, the horizontal machine assembly has a first switching port thereon that communicates to the first suction device, the hand piece assembly has a second switching port thereon that is in docking communication with the second switching port when the hand piece assembly is installed in the horizontal machine assembly, the air duct switching valve is integrated with the hand piece assembly and located downstream of the dirt cup component, and switches the clean air outlet of the dirt cup component to communicate with one of the second suction device and the second switching port.

In some embodiments, the air duct switching valve comprises: the valve body is internally provided with an air inlet channel, a first air channel and a second air channel, an inlet of the first air channel and an inlet of the second air channel are communicated to the air inlet channel, an outlet of the first air channel is communicated to the second switching port, and an outlet of the second air channel is communicated to the second suction device; the valve is arranged in the valve body and is positioned at the inlet of the first air channel and the inlet of the second air channel; the rotating shaft is arranged between the valve and the valve body so that the valve can rotate relative to the valve body; when the air pressure in the first air duct is smaller than the air pressure in the second air duct, the valve rotates towards a first position for opening the inlet of the first air duct and closing the inlet of the second air duct; when the air pressure in the second air duct is smaller than the air pressure in the first air duct, the valve rotates towards a second position for opening the inlet of the second air duct and closing the inlet of the first air duct.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a state diagram of a cleaning appliance in an upright use mode according to one embodiment of the present invention;

FIG. 2 is an airflow pattern of the cleaning apparatus shown in FIG. 1 in a first mode of operation;

FIG. 3 is another airflow pattern of the cleaning apparatus shown in FIG. 1 in a first mode of operation;

FIG. 4 is an airflow directional diagram of the cleaning apparatus shown in FIG. 1 in a second mode of operation;

FIG. 5 is a state diagram of a cleaning appliance in a lying mode of use according to one embodiment of the present invention;

FIG. 6 is an airflow directional diagram of the cleaning apparatus shown in FIG. 5 in a first mode of operation;

FIG. 7 is an airflow directional diagram of the cleaning apparatus shown in FIG. 5 in a second mode of operation;

FIG. 8 is a state diagram in which a cleaning apparatus according to another embodiment of the present invention assumes a lying-type use mode;

FIG. 9 is a state diagram of a cleaning appliance in a hand-held use mode according to one embodiment of the present invention;

FIG. 10 is a state diagram of a cleaning appliance in a hand-held use mode in accordance with another embodiment of the invention;

FIG. 11 is a state diagram of a cleaning appliance in a handheld mode of use in accordance with one embodiment of the present invention;

FIG. 12 is a state diagram of a cleaning appliance in a handheld mode of use in accordance with another embodiment of the present invention;

FIG. 13 is a state diagram of a cleaning appliance exhibiting a putter use mode in accordance with one embodiment of the present invention;

FIG. 14 is a perspective view of a horizontal machine assembly according to one embodiment of the present invention;

FIG. 15 is a perspective view of a floor brush, pipe joint, etc. according to one embodiment of the present invention;

FIG. 16 is a perspective view of a body portion of a push rod in accordance with one embodiment of the present invention;

FIG. 17 is a perspective view of an extension hose according to one embodiment of the present invention;

FIG. 18 is a cross-sectional view of a duct switching valve according to one embodiment of the present invention;

FIG. 19 is an operational state diagram of the air duct switching valve shown in FIG. 18;

FIG. 20 is another operational state diagram of the air duct switching valve shown in FIG. 18;

FIG. 21 is still another operational state diagram of the air duct switching valve shown in FIG. 18;

FIG. 22 is still another operational state diagram of the air duct switching valve shown in FIG. 18;

FIG. 23 is a state diagram of the operation of the air duct switching valve according to another embodiment of the present invention;

FIG. 24 is another operational state diagram of the air duct switching valve shown in FIG. 23;

FIG. 25 is a state diagram of the operation of the air duct switching valve according to still another embodiment of the present invention;

FIG. 26 is another operational state diagram of the air duct switching valve illustrated in FIG. 25;

FIG. 27 is a state diagram of the operation of the air duct switching valve in accordance with yet another embodiment of the present invention;

FIG. 28 is another operational state diagram of the air duct switching valve shown in FIG. 27;

fig. 29 is an operational state diagram of a wind tunnel switching valve according to still another embodiment of the present invention;

fig. 30 is another operational state diagram of the air duct switching valve shown in fig. 29.

Reference numerals:

the cleaning device 2:

a vertical machine assembly 21; a push rod 211; the body portion 2111; a handle portion 2112;

a floor brush 212; a pipe joint 213; a mount 214;

an intake passage 2101; an air supply port 2102; a dust suction port 2103;

a horizontal machine assembly 22; a first suction device 221; a wheel base assembly 222; wheels 2221; a base 2222;

a gas supply passage 2201; an air inlet 2202; an air outlet 2203; the first switching port 2204;

a cavity 2205; an air outlet passage 2206; a first exhaust port 2207;

a handset assembly 23; a second suction device 231; a dirt cup assembly 232; a handle 233;

an air inlet 2301; a second switching port 2302; a second air outlet 2303;

an external hose 24; a first end 241; a second end 242; a dust suction inlet 240;

an attachment 25;

an air duct switching valve 3;

a valve body 31; an air intake passage 311; a first air duct 312; a second air duct 313; a junction 314;

a valve 32; the first valve portion 321; a second valve portion 322; a flat plate valve plate 320;

a rotating shaft 33; a first seal stop 34; a second seal retainer 35;

a fold back 36; the first segment 361; and a second section 362.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the applicability of other processes and/or the use of other materials.

Hereinafter, a cleaning apparatus 2 according to an embodiment of the present invention will be described with reference to fig. 1 to 30.

As shown in fig. 1, a cleaning apparatus 2 according to an embodiment of the present invention may include: a vertical machine assembly 21, a horizontal machine assembly 22 and a hand piece assembly 23. The vertical machine assembly 21 comprises a push rod 211 and a floor brush 212, wherein the floor brush 212 is arranged at the lower end of the push rod 211, the vertical machine assembly 21 is suitable for standing on the ground, and when a user pushes the upper end of the push rod 211, the floor brush 212 is pushed by the lower end of the push rod 211 to run on the ground. The horizontal machine assembly 22 includes a first suction device 221 and a wheel base assembly 222, the wheel base assembly 222 being used for carrying the first suction device 221 and including wheels 2221.

The horizontal machine assembly 22 is detachably connected to the vertical machine assembly 21. The horizontal machine assembly 22 moves with the vertical machine assembly 21 when the horizontal machine assembly 22 is mounted to the vertical machine assembly (e.g., in a vertical use mode described later). That is, when the horizontal machine assembly 22 is placed on the ground by itself, the horizontal machine assembly 22 can be towed on the ground by means of the wheels 2221, and when the user pushes the push rod 211 to move the vertical machine assembly 21 after the horizontal machine assembly 22 is mounted on the vertical machine assembly 21 to be separated from the ground, the vertical machine assembly 21 drives the horizontal machine assembly 22 to move synchronously.

The hand piece assembly 23 includes a second suction device 231, a dirt cup assembly 232, and a handle 233, the handle 233 being adapted to be hand held or carried, the dirt cup assembly 232 being used for dirt-air separation of dirty air, which retains the separated dirt in the dirt cup assembly 232 and discharges the separated clean air out of the dirt cup assembly 232. For example, the dirt cup assembly 232 can include: a housing and a filter (not shown) disposed within the housing, such as a HEPA and/or cyclone separator, wherein the cyclone separator may be a single stage cyclone separator or a multi-stage cyclone separator.

The hand piece assembly 23 has an air inlet 2301 (see figure 11) and the air inlet 2301 communicates with the dirty air inlet of the dirt cup assembly 232, and the second suction device 231 is located downstream of the dirt cup assembly 232 (as shown in figure 3), i.e. dirty air can be drawn through the air inlet 2301 and fed into the dirt cup assembly 232 when the second suction device 231 is in operation. It will be appreciated that the second suction device 231 and the first suction device 221 are not limited in configuration, and may each include, for example, a motor and a fan, etc., and when the motor drives the fan to rotate, a negative pressure may be generated so that dirty air may be sucked in.

The hand piece assembly 23 is detachably connected to the horizontal type machine assembly 22. When the hand set assembly 23 is mounted on the horizontal machine assembly 22 (for example, in an upright use mode, a horizontal use mode, and a hand-held use mode described later), the suction port 2301 of the hand set assembly 23 is communicated with the horizontal machine assembly 22 so that the hand set assembly 23 sucks in dirty air through the horizontal machine assembly 22, the first suction device 221 is provided downstream of the dirt cup assembly 232, and since the second suction device 231 is also provided downstream of the dirt cup assembly 232, it is described that the clean air outlet of the dirt cup assembly 232 can be communicated to at least one of the second suction device 231 and the first suction device 221. Thus, when at least one of the second suction unit 231 and the first suction unit 221 is in operation, the horizontal machine assembly 22 can draw in a dust-laden air stream and supply the dust-laden air stream to the dust cup assembly 232 of the hand piece assembly 23 for cleaning.

Thus, the cleaning apparatus 2 according to the embodiment of the present invention may have a vertical use mode (in which the vertical unit assembly 21, the horizontal unit assembly 22, and the hand set assembly 23 are assembled for use, at least one of the first suction device 221 and the second suction device 231 is used as a suction source, and the dirty air cleaning process is performed using the dust cup assembly 232), a horizontal use mode, or a hand use mode (in which the horizontal unit assembly 22 and the hand set assembly 23 are assembled for use separately from the vertical unit assembly 21, at least one of the first suction device 221 and the second suction device 231 is used as a suction source, and the dirty air cleaning process is performed using the dust cup assembly 232), a hand-held use mode (in which the hand-held unit 23 is used separately from the horizontal unit 22 and the vertical unit 21, the dirty air cleaning process is performed using the second suction device 231 as a suction source, and the dust cup unit 232), and the like. In addition, the above-mentioned several more common usage modes will be briefly described hereinafter, but it should be noted that the usage mode of the cleaning apparatus 2 according to the embodiment of the present invention is not limited thereto.

In short, the cleaning device 2 according to the embodiment of the present invention can have a plurality of usage modes, such as an upright usage mode, a horizontal usage mode, a handheld usage mode, and a handheld usage mode, so as to better satisfy different usage requirements of users. In addition, since the handset assembly 23 held by the user includes only one suction device in the handheld use mode, the user can more easily perform handheld operation. Also, in the upright use mode and the horizontal use mode, since the cleaning device 2 is supported on the floor surface by the floor brush 212 or the wheel base assembly 222, without the user holding the two suction devices, the cleaning device 2 can suck in dirty air by using the suction device except the one with higher power or both the suction devices, so that the cleaning efficiency in these modes can be improved.

For example, in some alternative examples of the present invention, the power of the second suction device 231 is smaller than that of the first suction device 221, that is, the power of the second suction device 231 included in the hand-held machine assembly 23 is smaller and the weight is lighter, and the power of the first suction device 221 included in the horizontal machine assembly 22 is larger and the weight is heavier, so that as described above, the portability of the handheld use mode and the large suction effect in other use modes can be ensured, and the cleaning effect of the cleaning device 2 can be improved.

In some embodiments of the present invention, as shown in fig. 2, 4 and 14, the wheel seat assembly 222 may include a seat body 2222, the wheels 2221 are rotatably disposed on the seat body 2222, the first suction device 221 is disposed in the seat body 2222, an air inlet 2202 and an air outlet 2203 are disposed on an outer surface of the seat body 2222, an air supply channel 2201 communicating between the air inlet 2202 and the air outlet 2203 is disposed in the seat body 2222, the air inlet 2202 is used for sucking dirty air into the air supply channel 2201, the air outlet 2203 is used for discharging the dirty air from the air supply channel 2201, and when the hand-held unit assembly 23 is mounted on the horizontal unit assembly 22, the air outlet 2203 is in butt communication with the air inlet 2301, so that the hand-held unit 23 can suck the dirty air from the horizontal unit assembly 22.

Here, it should be noted that "docking communication" described herein means: the two components are positioned in space relative to each other and are joined to communicate the air flow. It should be noted that, as shown in fig. 2, the air supply channel 2201 is a closed flow channel (i.e. only two ends of the air supply channel 2201 are open), so that the dirty air in the air supply channel 2201 does not flow to the first suction device 221 in the housing 2222.

Therefore, the first suction device 221 is disposed in the seat 2222, so that the first suction device 221 can be effectively protected by the seat 2222, and the air supply channel 2201 is disposed in the seat 2222, instead of disposing an air duct outside the seat 2222 and communicating with the air suction port 2301 of the handset assembly 23, so that the structure of the horizontal machine assembly 22 is simple and elegant, the horizontal machine assembly 22, the vertical machine assembly 21 and the handset assembly 23 can be assembled and disassembled conveniently, the handset assembly 23 is mounted on the horizontal machine assembly 22 only by one action, and no action such as an external pipeline is needed, so that the handset assembly 23 can suck dirty air from the horizontal machine assembly 22, the assembly steps are extremely effectively simplified, and the air supply channel 2201 is not easily damaged in the seat 2222, so that the air supply reliability is high.

Further, as shown in fig. 2, the ground brush 212 has a dust suction port 2103, the push rod 211 has an air inlet channel 2101 connected to the dust suction port 2103 therein, the air inlet 2202 may be directly connected to the air inlet channel 2101 when the horizontal machine assembly 22 is mounted on the vertical machine assembly 21 (the example is not shown in the figure, for example, the push rod 211 has a communication port communicated with the air inlet channel 2101, and the communication port is in butt communication with the air inlet 2202 when the horizontal machine assembly 22 is mounted on the vertical machine assembly 21), or the air inlet 2202 may be connected to the air inlet channel 2101 by an external connection member such as an external connection hose 24 (for example, the push rod 211 has an air inlet 2102, and when the horizontal machine assembly 22 is mounted on the vertical machine assembly 21, the external connection hose 24 is used to connect the first end 241 of the external connection hose 24 to the air inlet 2102 and the second end 242 of the external connection hose 24 to the air inlet 2202 on the housing 2222).

Therefore, in the vertical use mode, when at least one of the first suction device 221 and the second suction device 231 works, the dust suction port 2103 of the floor brush 212 can suck dirty air near the floor, then the dirty air is sent into the air supply channel 2201 through the air inlet channel 2101 (or the air inlet channel 2101 and the external hose 24) on the push rod 211, and then the dirty air is sent into the dust cup assembly 232 through the air supply channel 2201 for processing, namely the hand held unit 23 can suck the dirty air through the horizontal unit assembly 22 and the vertical unit assembly 21 in sequence. Thus, floor cleaning in the upright use mode can be achieved simply and efficiently.

Of course, the present invention is not limited thereto, and in the above-mentioned upright usage mode, when the horizontal machine assembly 22 is in air flow communication with the upright machine assembly 21 through the external hose 24, and when the first end 241 of the external hose 24 is detached from the upright machine assembly 21, the first end 241 is in a free state and the port thereof may be the dust suction inlet 240, and at this time, the user may perform dust suction cleaning on other positions (such as a table, a sofa, etc.) above the floor by holding the first end 241 of the external hose 24.

Therefore, in the vertical use mode, the user can push the vertical machine assembly 21 to drive the horizontal machine assembly 22 and the hand-held machine assembly 23 to travel on the ground, and the user can suck the dust on the ground through the dust suction port 2103 on the floor brush 212 and can suck the dust through the first end 241 of the external hose 24 as the dust suction inlet 240, so that the user experience can be further enriched.

In some embodiments of the present invention, as shown in fig. 13, the handset assembly 23 and the vertical assembly 21 may be detachably connected, and when the handset assembly 23 is mounted on the vertical assembly 21, the handset assembly 23 is disposed at the upper end of the push rod 211, and the suction port 2301 is in butt communication with the air inlet channel 2101, that is, the upper end of the air inlet channel 2101 has an air supply port 2102 communicating with the air inlet channel 2101, and when the handset assembly 23 is disposed at the upper end of the push rod 211, the air inlet 2202 is in butt communication with the air supply port 2102, so that when the second suction device 231 is operated, the air flow in the air inlet channel 2101 may flow into the suction port 2301 through the air supply port 2102 and into the dirt cup assembly 232.

It should be noted here that, as shown in fig. 2, the push rod 211 may be an integrally formed part, or may be composed of multiple components, for example, in a specific example of the present invention, the push rod 211 may include a body portion 2111 and a handle portion 2112 connected to each other, a lower end of the body portion 2111 is mounted to the ground brush 212, the handle portion 2112 is detachably mounted to an upper end of the body portion 2111, the body portion 2111 and the handle portion 2112 both have an air flow passage therein, when the body portion 2111 and the handle portion 2112 are mounted in place, the air flow passage 2101 may be defined together, and an upper end of the body portion 2111 and an upper end of the handle portion 2112 are both configured as the air supply port 2102. When hand piece assembly 23 is attached directly to the upper end of handle portion 2112, air inlet 2301 communicates with air supply port 2102 in the upper end of handle portion 2112 (this example is not shown), and when handle portion 2112 is removed and hand piece assembly 23 is attached directly to the upper end of body portion 2111, air inlet 2301 communicates with air supply port 2102 in the upper end of body portion 2111 (see fig. 13).

Thus, the cleaning device 2 according to the embodiment of the present invention may further have a push-rod using mode, in which the horizontal machine assembly 22 is detached from the vertical machine assembly 21, the hand-held machine assembly 23 is detached from the horizontal machine assembly 22, and the hand-held machine assembly 23 is mounted on the vertical machine assembly 21, in which the user moves the push rod 211 by holding the hand-held machine assembly 23, and in which the second suction device 231 operates as a suction source to suck in an air flow, and dust on a running surface is sucked in from the floor brush 212 along with the air flow and enters the dust cup assembly 232 along the push rod 211 to be treated. Thus, the user experience can be further enriched.

In some embodiments of the present invention, the cleaning apparatus 2 may further include an air duct switching valve 3, and when the hand piece assembly 23 is mounted to the horizontal type machine assembly 22, the air duct switching valve 3 switches one of the second suction device 231 and the first suction device 221 to communicate with the clean air outlet of the dirt cup assembly 232. That is, the air duct switching valve 3 is switchable between a first state and a second state, when the air duct switching valve 3 is switched to the first state, the first suction device 221 is communicated with the clean air outlet of the dust cup assembly 232, at this time, when the first suction device 221 is operated, the dust cup assembly 232 can suck in dirty air, and the dirty air is processed into clean air by the dust cup assembly 232 and then flows to the first suction device 221; similarly, when the air duct switching valve 3 is switched to the second state, the second suction device 231 is communicated with the clean air outlet of the dust cup assembly 232, and at this time, when the second suction device 231 is operated, the dust cup assembly 232 can suck in dirty air, and the dirty air flows to the second suction device 231 after being processed into clean air by the dust cup assembly 232. From this, through setting up wind channel diverter valve 3, can guarantee that the air current moves towards singleness, avoid the air current to reveal, reduce noise at work, improve clean efficiency.

In some specific examples, as shown in fig. 3, 4 and 14, the horizontal machine assembly 22 has a first switch port 2204, the first switch port 2204 is connected to the first suction device 221, the hand set assembly 23 has a second switch port 2302, and the first switch port 2204 is in butt communication with the second switch port 2302 when the hand set assembly 23 is mounted on the horizontal machine assembly 22, so that when air flows out of the second switch port 2302, the air can enter the horizontal machine assembly 22 through the first switch port 2204 and flow to the first suction device 221.

In addition, as shown in fig. 4, in some embodiments of the present invention, the seat body 2222 may further have an air outlet channel 2206 therein, two ends of the air outlet channel 2206 are respectively connected to the first switching port 2204 and the inlet of the first suction device 221, and the air outlet channel 2206 is also a closed flow channel (that is, only two ends of the air outlet channel 2206 are open), so that it can be ensured that the air flow entering the seat body 2222 from the first switching port 2204 can reliably flow to the first suction device 221.

Referring to fig. 3, the air channel switching valve 3 is integrated in the handset assembly 23 and located downstream of the dust cup assembly 232, and the clean air outlet of the switching dust cup assembly 232 is communicated with one of the second suction device 231 and the second switching port 2302. It can be understood that when the air duct switching valve 3 is switched to the first state, the clean air outlet of the dirt cup assembly 232 is communicated to the second switching port 2302 to allow the clean air flowing out of the clean outlet to flow to the first suction means 221, and when the air duct switching valve 3 is switched to the second state, the clean air outlet of the dirt cup assembly 232 is communicated to the second suction means 231 to allow the clean air flowing out of the clean outlet to flow to the second suction means 231. Thus, by integrating the air duct switching valve 3 in the handset assembly 23, the above state switching can be achieved simply and efficiently. Of course, the present invention is not limited to this, and for example, in other embodiments of the present invention, it is also possible to provide the air duct switching valve 3 with a more complicated structure, and provide a part of the air duct switching valve 3 to the horizontal machine assembly 22, another part of the air duct switching valve 3 to the handset assembly 23, and so on.

In some specific examples, as shown in fig. 3 and 18, the air duct switching valve 3 may include: the valve body 31 is internally provided with an air inlet channel 311, a first air channel 312 and a second air channel 313, the inlet of the first air channel 312 and the inlet of the second air channel 313 are communicated to the air inlet channel 311, the outlet of the first air channel 312 is communicated to a second switching port 2302, and the outlet of the second air channel 313 is communicated to the second suction device 231. Thus, when the inlet of the first air duct 312 is opened, the airflow in the air inlet passage 311 can enter the first air duct 312 through the inlet of the first air duct 312, and when the inlet of the second air duct 313 is opened, the airflow in the air inlet passage 311 can enter the second air duct 313 through the inlet of the second air duct 313.

It should be noted that the inlet of the air intake passage 311, the outlet of the first air duct 312, and the outlet of the second air duct 313 are all connected to the atmosphere outside the cleaning device 2. As shown in FIG. 3, the inlet of the air inlet channel 311 is connected to the dirt cup assembly 232, and the dirty air inlet of the dirt cup assembly 232 can be connected to the outside atmosphere, so that the inlet of the air inlet channel 311 is connected to the outside atmosphere; as shown in fig. 4, the outlet of the first air duct 312 is connected to the first suction device 221, and the first suction device 221 can be communicated with the outside atmosphere through the first exhaust port 2207, so that the outlet of the first air duct 312 is connected to the outside atmosphere; as shown in fig. 3, the outlet of the second air duct 313 is communicated to the second suction device 231, and the second suction device 231 may be communicated with the external atmosphere through the second air outlet 2303, so that the outlet of the second air duct 313 is communicated to the external atmosphere.

The valve 32 is arranged in the valve body 31 and is positioned at the inlet of the first air duct 312 and the inlet of the second air duct 313; the rotary shaft 33 is provided between the valve 32 and the valve body 31 to allow the valve 32 to be rotatable relative to the valve body 31. The air duct switching valve 3 is configured as follows.

When the air pressure in the first air duct 312 is lower than the air pressure in the second air duct 313 (for example, as shown in fig. 4, when the first suction device 221 is activated to generate negative pressure in the first air duct 312 and the second suction device 231 is deactivated to maintain atmospheric pressure in the second air duct 313), the valve 32 rotates toward the first position that opens the inlet of the first air duct 312 and closes the inlet of the second air duct 313.

When the air pressure in the second air duct 313 is lower than the air pressure in the first air duct 312 (for example, as shown in fig. 3, when the second suction device 231 is activated to generate negative pressure in the second air duct 313 and the first suction device 221 is deactivated to maintain atmospheric pressure in the first air duct 312), the valve 32 rotates toward the second position where the inlet of the second air duct 313 is opened and the inlet of the first air duct 312 is closed.

Therefore, the air duct switching valve 3 has the following advantages: firstly, the switching effect of the air duct switching valve 3 of the embodiment of the invention does not need manual operation of a user, so that the problem of incomplete switching caused by manual mechanical external force operation is avoided, the problem of switching air leakage is avoided, and the switching reliability is high; secondly, the air duct switching valve 3 of the embodiment of the invention can be completely arranged inside the cleaning device 2, and parts (such as a knob, a button or a push rod and the like) exposed outside the cleaning device 2 for mechanical contact of a user do not exist, so that the air duct switching valve is not in mechanical contact with the outside, the possibility of damage of the air duct switching valve 3 by external force is avoided, and the service life is long; third, the air duct switching valve 3 according to the embodiment of the present invention does not need to use a complicated mechanical mechanism or select an electronic component with a high cost, can automatically perform adaptive switching along with a change in the pressure difference between the first air duct 312 and the second air duct 313, has a very simple structure, fewer parts, a small volume, a low cost, a high reliability, and is suitable for wide popularization and application.

In some embodiments of the present invention, as shown in fig. 15, the floor brush 212 has a pipe connector 213 connected to the push rod 211, the pipe connector 213 has a mounting member 214, and the horizontal machine assembly 22 is mounted on the mounting member 214. Therefore, the horizontal machine assembly 22 is arranged in the vertical machine assembly 21 at a position close to the ground brush 212, so that the gravity center of the whole machine can be reduced, a user can more stably push the vertical machine assembly 21 to travel on the ground, and the risk of toppling the vertical machine assembly 21 can be reduced.

In some specific examples, as shown in fig. 15, the mounting member 214 may be a hook, an opening of the hook faces upward, the horizontal machine assembly 22 may be hung on the hook from top to bottom, and when a user lifts the horizontal machine assembly 22 upward or lifts the horizontal machine assembly 22 through the hand-held machine assembly 23, the horizontal machine assembly 22 may be detached from the vertical machine assembly 21, so as to improve the efficiency of detaching the horizontal machine assembly 22 and improve the convenience of operation for the user.

Furthermore, it is understood that the hand held unit assembly 23 and the horizontal unit assembly 22 can be assembled and disassembled in any way, for example, in some specific examples of the present invention, as shown in fig. 14, a concave cavity 2205 formed by being recessed inwards can be formed on the outer surface of the seat body 2222, the hand held unit assembly 23 is inserted into the concave cavity 2205, and the air outlet 2203 is formed on the bottom wall of the concave cavity 2205, so that when the hand held unit assembly 23 is assembled, the handle 233 can be held, the air inlet 2301 of the hand held unit assembly 23 faces the direction of the air outlet 2203, the hand held unit assembly 23 is pushed into the concave cavity 2205, when the air inlet 2301 is abutted with the air outlet 2203, the assembly can be completed, and the effective abutting of the air outlet 2203 with the air inlet 2301 can be ensured.

In addition, as shown in fig. 10, when hand grip assembly 23 is assembled with horizontal machine assembly 22, handle 233 may be exposed outside of horizontal machine assembly 22, so that it is convenient for a user to hold handle 233 for removing hand grip assembly 23 from horizontal machine assembly 22, or to carry horizontal machine assembly 22 with handle 233 for movement, etc. In addition, when both the hand piece assembly 23 and the horizontal type machine assembly 22 are mounted on the vertical type machine assembly 21, as shown in fig. 1, the handle 233 may be disposed upward, thereby making it easier for the user to lift the hand piece assembly 23 to carry the horizontal type machine assembly 22 to be taken off the hook.

Furthermore, as shown in fig. 4 and 14, the first switch 2204 may be formed in a side wall of the cavity 2205 and the second switch 2302 may be formed in a side wall of the hand piece assembly 23, so that the first switch 2204 and the second switch 2302 can be smoothly mated when the hand piece assembly 23 is assembled with the cavity 2205. In addition, a first fastening part (or a first magnetic part, etc.) can be further arranged on the horizontal machine assembly 22, a second fastening part (or a second magnetic part, etc.) can be arranged on the hand-held machine assembly 23, when the hand-held machine assembly 23 is installed on the horizontal machine assembly 22, the connection reliability of the hand-held machine assembly 23 and the horizontal machine assembly 22 can be improved by utilizing the fastening fit of the first fastening part and the second fastening part (or the magnetic cooperation of the first magnetic part and the second magnetic part), and the hand-held machine assembly 23 can be very conveniently detached from the horizontal machine assembly 22 after the fastening fit is unlocked (or the first magnetic part and the second magnetic part are separated).

Specifically, the first suction device 221 and the second suction device 231 may each include a motor and a fan, and when the motor drives the fan to rotate, the corresponding suction devices may generate a negative pressure to suck the airflow, in some embodiments of the present invention, the motor included in the first suction device 221 may be an ac motor, the motor included in the second suction device 231 may be a dc motor, in this case, the handset assembly 23 may further include a rechargeable battery connected to the dc motor, and the horizontal machine assembly 22 may further include an electrical connection structure (such as a power line or a power line interface) connected to the ac motor, and the electrical connection structure is adapted to be connected to an ac power source to provide ac power to the ac motor.

Therefore, the power of the ac motor is generally higher than that of the dc motor, so that when the motor included in the first suction device 221 is the ac motor, it can be simply and effectively ensured that the power of the first suction device 221 is greater than that of the second suction device 231, and a high cleaning effect in the vertical operation state is ensured, and the cost of the ac motor is generally lower than that of the dc motor, so that the production cost of the vertical machine assembly 21 can be reduced. In addition, the volume of the dc motor is generally smaller than that of the ac motor, so that portability of the handset assembly 23 can be improved. In addition, when the second suction device 231 employs a brushless dc motor, the cleaning effect of the hand set assembly 23 can be improved because the brushless dc motor is highly efficient in operation.

Further, when the hand held machine assembly 23 is mounted on the horizontal machine assembly 22, the power connection structure is electrically connected to the rechargeable battery. For example, the handset assembly 23 has a first electrical terminal, the horizontal machine assembly 22 has a second electrical terminal, when the handset assembly 23 is mounted on the horizontal machine assembly 22, the first electrical terminal contacts with the second electrical terminal to form an electrical connection, the rechargeable battery is electrically connected to the electrical connection structure through the electrical connection of the first electrical terminal and the second electrical terminal, and at this time, the rechargeable battery can be charged when the electrical connection structure is connected to the ac power source. Thus, the horizontal handset unit 22 can be used as a charging stand for the handset unit 23, and the rechargeable battery in the handset unit 23 can be charged easily and efficiently.

Of course, the present invention is not limited thereto, for example, in other embodiments of the present invention, when the handset assembly 23 includes a rechargeable battery, the handset assembly 23 may also include a second power connection structure electrically connected to the rechargeable battery, and when the second power connection structure is connected to an ac power source, the rechargeable battery is also charged, thereby facilitating the user to flexibly charge. The present invention is not limited to this, and the motor included in the first suction device 221 may be a dc motor, and the motor included in the second suction device 231 may be an ac motor.

In some embodiments of the present invention, the cleaning apparatus 2 may be provided with a first mode of operation and a second mode of operation when the handset assembly 23 is mounted to the horizontal machine assembly 22 (e.g., in the upright mode of use, the horizontal mode of use, the handheld mode of use described above). In the first operation mode, the second suction device 231 is operated, the first suction device 221 is stopped, and the air flow dedusted by the dirt cup assembly 232 flows to the second suction device 231. In the second operation mode, the first suction device 221 is operated, the second suction device 231 is stopped, and the air flow dedusted by the dirt cup assembly 232 flows to the first suction device 221. In this way, energy can be saved, since only one suction device is operated in each of the first and second operating modes.

Further, when "the second suction device 231 includes a dc motor, the hand held unit assembly 23 includes a rechargeable battery connected to the dc motor, the first suction device 221 includes an ac motor, and the horizontal unit assembly 22 includes a power connection structure connected to the ac motor, the power connection structure being electrically connected to the rechargeable battery when the hand held unit assembly 23 is mounted to the horizontal unit assembly 22". Under the first mode of operation, utilize the storage electric quantity drive second suction device 231 dust absorption in the rechargeable battery to make to connect the electric structure and need not to connect the power, and then avoided because the adverse effect that uses the power cord to bring for cleaning operation, improve the operation convenience. In the second operation mode, the power connection structure in the horizontal machine assembly 22 is connected with the alternating current power supply, so that on one hand, the first suction device 221 can be used for sucking dust, and on the other hand, the rechargeable battery in the handheld machine assembly 23 can be charged, so that a user does not need to separately extract time to charge the rechargeable battery, and the two purposes are achieved.

Of course, the invention is not limited to this, when the hand held unit 23 is installed on the horizontal unit 22, the cleaning device 2 may have more operation modes, for example, a third operation mode may also be included, in which the power connection structure is connected to the ac power supply, the first suction device 221 operates, the rechargeable battery charges and drives the second suction device 231 to operate, that is, in the third operation mode, the first suction device 221 and the second suction device 231 both serve as suction sources to perform dust collection operation, so that the working effect of the whole machine may be further improved. Furthermore, it should be noted that when the first suction device 221 and the second suction device 231 are operated simultaneously, the cleaning apparatus 2 may not include the air duct switching valve 3 described above.

In summary, according to the cleaning device 2 of at least one embodiment of the present invention, the external hose 24, the hand set assembly 23, the horizontal machine assembly 22 and the vertical machine assembly 21 are provided, so that the cleaning device 2 can have an upright use mode (as shown in fig. 1), a horizontal use mode (as shown in fig. 5), a handheld use mode (as shown in fig. 9), a handheld use mode (as shown in fig. 11) and a push rod use mode (as shown in fig. 13), and when the hand set assembly 23 is installed on the horizontal machine assembly 22, a user can switch between the first operation mode and the second operation mode according to circumstances to select one of the first suction device 221 and the second suction device 231 as a suction source, so as to meet different practical requirements, and the cleaning device 2 of at least one embodiment of the present invention can be suitable for different dust suction scenes. Therefore, the cleaning device 2 according to at least one embodiment of the invention satisfies the portability of the handheld use mode and the push rod use mode, and satisfies the high performance of the vertical use mode, the horizontal use mode and the portable use mode.

In addition, the cleaning device 2 according to the embodiment of the present invention may further include other accessories 25, such as a flat brush, a hair brush, etc., so that in the embodiment of performing dust suction by using the air suction opening 2301 of the hand held unit 23 or by using the dust suction inlet 240 externally connected to the first end 241 of the hose 24, the above-mentioned accessories 25 may be disposed at the air suction opening 2301 or the first end 241 to better satisfy various practical requirements.

Specific examples of using the cleaning apparatus 2 according to embodiments of the present invention in several general usage modes are briefly described below with reference to fig. 1 to 13.

Vertical mode of use

Specifically, the upright mode of use may be of various types, for example, in the example shown in fig. 1, an upright mode of use is presented, in which case, as shown in fig. 1, the hand piece assembly 23 is mounted on the horizontal machine assembly 22, the horizontal machine assembly 22 is mounted on the upright machine assembly 21, the external hose 24 is connected between the upright machine assembly 21 and the horizontal machine assembly 22, and the cleaning apparatus 2 can stand on the driving surface without being held by the user. Thereby, the cleaning device 2 can perform the first and second operation modes, respectively, in the upright use mode.

As shown in fig. 2 to 3, in the upright use mode, if the cleaning device 2 performs the first operation mode, the second suction device 231 is operated, the first suction device 221 is stopped, and the air duct switching valve 3 is automatically switched to: the air inlet channel 311 is connected to the second air channel 313 and isolated from the first air channel 312, and at this time, as shown by the solid arrows in fig. 2-3, the dust-containing air flow sucked from the floor brush 212 can firstly enter the air inlet channel 2101 in the push rod 211, then enter the air supply channel 2201 in the housing 2222 through the external hose 24, and then enter the dirt cup assembly 232 through the air suction port 2301 for dust and air separation, the separated dust is deposited in the dirt cup assembly 232, the separated air flow enters the air inlet channel 311 of the air channel switching valve 3, then flows to the second suction device 231 through the second air channel 313, and then is discharged to the environment from the second air outlet 2303 at the second suction device 231.

As shown in fig. 4, in the upright use mode, if the cleaning device 2 performs the second operation mode, the second suction device 231 is stopped, the first suction device 221 is operated, and the air duct switching valve 3 is automatically switched to: the air inlet channel 311 is connected to the first air channel 312 and isolated from the second air channel 313, and at this time, as shown by the solid arrows in fig. 4, the dust-containing air flow sucked from the ground brush 212 can first enter the air inlet channel 2101 in the push rod 211, then enter the air supply channel 2201 in the housing 2222 through the external hose 24, then enter the dust cup assembly 232 through the air suction port 2301 for dust-air separation, the separated dust is deposited in the dust cup assembly 232, the separated air flow enters the air inlet channel 311 of the air channel switching valve 3, then flows to the second switching port 2302 through the first air channel 312, then enters the air outlet channel 2206 in the housing 2222 through the first switching port 2204 and flows to the first suction device 221, and then is discharged to the environment from the first air outlet 2207 at the first suction device 221.

Horizontal use mode

Specifically, the lying-type usage mode may have a plurality of types, for example, in the example shown in fig. 5, a first lying-type usage mode is exhibited, which is compared with the above-described standing-type usage mode, that is, the following is performed: the horizontal machine assembly 22 bearing the hand-held machine assembly 23 is detached from the vertical machine assembly 21, the horizontal machine assembly 22 bearing the hand-held machine assembly 23 is placed on the ground, at the moment, the external hose 24 is still communicated between the horizontal machine assembly 22 and the vertical machine assembly 21, when the horizontal machine assembly 22 is used, a user holds the push rod 211 with hands to push the floor brush 212 to suck dust, and the push rod 211 drags the horizontal machine assembly 22 to travel on the ground through the hose. Thus, as shown in fig. 6 to 7, the cleaning device 2 can also perform a first and a second operating mode, respectively, in the same direction of the air flow as described above in this first horizontal use mode.

For another example, in the example shown in fig. 8, a second landscape type usage mode is presented, which, compared to the first landscape type usage mode described above, would be: when the vertical machine assembly 21 is detached from the first end 241 of the external connection pipe section and is not used, a user directly holds the first end 241 of the external connection hose 24 and uses the port of the first end 241 as the dust suction inlet 240 for dust suction, at this time, the cleaning device 2 can also respectively execute the first operation mode and the second operation mode, and the airflow direction is the same as that of the above-mentioned stage in which only less airflow flows through the vertical machine assembly 21, and therefore, the description is omitted.

Portable use mode

Specifically, the portable use mode can be varied, for example, fig. 9 shows a first portable use mode similar to the first horizontal use mode, except that in use, the user needs to use one hand to hold the push rod 211 and use the other hand to lift the hand-held device assembly 23, so as to lift the horizontal device assembly 22 off the ground through the connection relationship between the hand-held device assembly 23 and the horizontal device assembly 22, and at this time, the horizontal device assembly 22 is prevented from dragging on the ground, thereby improving the flexibility of operation. In addition, it can be understood that the airflow direction of the cleaning device 2 in the first portable use mode executing the first operation mode and the second operation mode is the same as the airflow direction of the cleaning device in the first horizontal use mode executing the first operation mode and the second operation mode, and therefore the description is omitted.

Fig. 10 shows a second portable use mode, which is similar to the second horizontal use mode, except that in use, the user needs to hold the first end 241 of the external hose 24 with one hand and lift the hand-held device assembly 23 with the other hand, so as to lift the horizontal device assembly 22 away from the ground by the connection relationship between the hand-held device assembly 23 and the horizontal device assembly 22, and at this time, the horizontal device assembly 22 is prevented from dragging on the ground, and the height of the external hose 24 is increased. In addition, it can be understood that the airflow direction of the cleaning device 2 in the second portable use mode executing the first operation mode and the second operation mode is the same as the airflow direction of the cleaning device in the second horizontal use mode executing the first operation mode and the second operation mode, and therefore, the description thereof is omitted.

Mode of use of push rod

Specifically, the push-stick operation mode may be various, for example, in the example shown in fig. 13, a push-stick operation mode is shown, in which, compared to the above-mentioned vertical operation mode, the hand-held device assembly 23 is detached from the horizontal device assembly 22, the external hose 24 is detached, the hand-held device assembly 23 is directly attached to the vertical device assembly 21, the air inlet 2301 of the hand-held device assembly 23 is in butt-joint communication with the air supply port 2102 at the upper end of the push-stick 211, and the user holds the hand-held device assembly 23 to push the push-stick 211 to suck dust by the floor brush 212.

In this mode, when the cleaning device 2 is operated, the second suction device 231 operates as a suction source to suck in the airflow, and at this time, the air duct switching valve 3 automatically switches to the air inlet passage 311 to communicate with the second air duct 313 under the action of the air pressure difference, so that the dust is sucked in from the dust suction port 2103 of the floor brush 212, flows along the air inlet passage 2101 on the push rod 211 to the air inlet port 2102, enters the air suction port 2301 of the handset assembly 23 through the air inlet port 2102, flows to the dirt cup assembly 232 to separate the dust from the air, flows to the second suction device 231 through the air inlet passage 311 and the second air duct 313, and is discharged to the external environment through the second air outlet port 2303 at the second suction device 231.

Hand-held mode of use

Specifically, the handheld mode of use can be varied, for example, as shown in FIG. 11, which shows a handheld mode of use, in which the upright unit 21 is removed from the hand held unit 23 and not used, as compared to the above-mentioned handspike mode of use, in which the user holds the hand held unit 23 to perform a cleaning operation, and in which the airflow is not sucked through the floor brush 212, but rather, the outside dirty air can directly enter the dirt cup assembly 232 through the suction opening 2301. For another example, in a handheld mode of use, as shown in fig. 12, in contrast to the above-mentioned handheld mode of use, an accessory 25 or the like may be mounted to the air inlet 2301 of the handset assembly 23 to draw in a dust-laden air stream using the accessory 25 and then into the dirt cup assembly 232 when the second suction device 231 is in operation.

Next, referring to fig. 18 to 30, the air duct switching valve 3 according to some embodiments of the present invention is described.

In some embodiments of the present invention, as shown in fig. 18, the inlet of the first air duct 312 and the inlet of the second air duct 313 meet at a meeting point, the rotating shaft 33 is disposed at the meeting point 314 (i.e., the meeting point of the inlet of the first air duct 312 and the inlet of the second air duct 313), the valve 32 includes a first valve portion 321 and a second valve portion 322 distributed on both sides of the rotating shaft 33, the first valve portion 321 is used for opening and closing the inlet of the first air duct 312, and the second valve portion 322 is used for opening and closing the inlet of the second air duct 313. Therefore, the air duct switching valve 3 according to the embodiment of the present invention has a simple structure, and can simply and effectively implement the air duct switching operation under the action of the pressure difference between the first air duct 312 and the second air duct 313. Of course, the present invention is not limited thereto, and the valve 32 may be provided in a more complicated structure.

In some embodiments of the present invention, as shown in fig. 18, the air duct switching valve 3 may include at least one of a first sealing abutment 34 and a second sealing abutment 35, wherein the first sealing abutment 34 is disposed around the inlet of the first air duct 312, and the first valve portion 321 is located in the first air duct 312 and rotates on a side of the first sealing abutment 34 away from the air inlet channel 311 (i.e., a portion of the valve 32 located in the first air duct 312 and rotates between the first suction source and the first sealing abutment 34), as shown in fig. 22, when the valve 32 rotates to the second position, the first valve portion 321 abuts against the first sealing abutment 34 to close the inlet of the first air duct 312.

As shown in fig. 18, the second sealing stopper 35 is disposed around the inlet of the second air duct 313, the second valve portion 322 is located in the second air duct 313 and rotates on the side of the second sealing stopper 35 away from the air inlet channel 311 (i.e. the portion of the valve 32 located in the second air duct 313, the position of which rotates between the second suction source and the second sealing stopper 35), and as shown in fig. 20, when the valve 32 rotates to the first position, the second valve portion 322 abuts against the second sealing stopper 35 to close the inlet of the second air duct 313.

Thus, the provision of the first seal stopper 34 can improve the reliability of stopping the valve 32 at the second position and the sealing performance of closing the first air passage 312, and the provision of the second seal stopper 35 can improve the reliability of stopping the valve 32 at the first position and the sealing performance of closing the second air passage 313. Here, it should be noted that, the first sealing stop member 34 and the second sealing stop member 35 according to the embodiment of the present invention may be integrally formed on the valve body 31, and may also be fixed on the valve body 31 by a subsequent assembly process (such as welding, bonding, snap-fit connection, and screw connection), and the like, which is not limited herein.

In addition, the air duct switching valve 3 may not include the first seal stopper 34, and in this case, the valve 32 may be stopped at the first position by the engagement of the first valve portion 321 with the inner wall of the first air duct 312, or the valve 32 may be stopped at the second position by the engagement of the second valve portion 322 with the inner wall of the second air duct 313. Further, the sealing effect when closing the respective air passages can also be enhanced by providing the first valve portion 321 and the second valve portion 322 with a gasket or the like.

As shown in fig. 18, at least one of the first valve portion 321 and the second valve portion 322 may be a flat valve sheet 320, wherein the "flat valve sheet 320" refers to: the flat plate-shaped sheet body has the advantages that the thickness of the flat plate valve sheet 320 is small, the cost is low, the torque for driving the valve 32 to rotate is small, the action reliability of the valve 32 is improved, and the effectiveness of the air duct switching action is improved, namely, when one of the first suction source and the second suction source is just started, although the pressure difference between the first air duct 312 and the second air duct 313 is small, the valve 32 can also rotate smoothly, and the timeliness and the reliability of the switching action of the air duct switching valve 3 are improved. Of course, the present invention is not limited thereto, and in other embodiments of the present invention, the first and

second valve portions

321 and 322 may also be configured in other shapes, respectively, such as a curved plate shape, a spherical shape, and the like.

Specifically, the connection manner of the flat valve sheet 320 and the rotating shaft 33 is not limited. For example, the flat valve sheet 320 and the rotating shaft 33 can be directly connected (as shown in fig. 18, the first valve portion 321 is the flat valve sheet 320 and is directly connected to the rotating shaft 33), thereby facilitating the processing. For another example, flat plate valve plate 320 and rotating shaft 33 may also be indirectly connected, for example, in the example shown in fig. 18, flat plate valve plate 320 may be connected to rotating shaft 33 through a folding member 36 (as shown in fig. 18, second valve portion 322 is flat plate valve plate 320 and is connected to rotating shaft 33 through folding member 36), folding member 36 includes a first section 361 and a second section 362, first section 361 is perpendicular to second section 362 (that is, the cross section of folding member 36 is "L" -shaped), one end of first section 361 far from second section 362 is connected to rotating shaft 33, one end of second section 362 far from first section 361 is connected to one end of flat plate valve plate 320 near rotating shaft 33, and first section 361 is parallel to flat plate valve plate 320.

Accordingly, the reliability of connection of the flat plate valve sheet 320 to the rotating shaft 33, that is, the structural strength of the root portion of the corresponding valve portion, can be improved, thereby improving the root portion fracture resistance of the corresponding valve portion. Alternatively, the rotating shaft 33, the valve 32, the folding member 36, etc. may be formed as an integral part, or may be formed by subsequent assembly of separate parts.

Next, referring to fig. 18 to 22, the operation principle of the air duct switching valve 3 according to an embodiment of the present invention will be briefly described.

As shown in fig. 18, the air pressure in the first air passage 312 is controlled by a first suction source (e.g., a first suction device as described below), the air pressure in the second air passage 313 is controlled by a second suction source (e.g., a second suction device as described below), and when neither of the first and second suction sources is operating, atmospheric pressure exists in both the first and

second air passages

312, 313, and the valve 32 is in a free state.

When the first suction source is activated and the second suction source is deactivated as shown in fig. 19, the direction of the air flow in the valve body 31 is shown by the solid arrows in fig. 12, the valve 32 is rotated counterclockwise as shown by the open arrows, and the air flow in the first air channel 312 is the sum of the air flow in the second air channel 313 and the air flow in the air inlet channel 311.

As shown in fig. 20, when the valve 32 is rotated to the first position shown in fig. 20, the first valve portion 321 abuts against the inner wall of the first air duct 312 and/or the second valve portion 322 abuts against the second sealing abutting element 35, the first air duct 312 is completely opened, the second air duct 313 is completely closed, and at this time, the air flow of the first air duct 312 is completely provided by the air inlet channel 311. Since the first air duct 312 is under negative pressure, the second air duct 313 is at normal pressure when communicating with the outside atmosphere, so that the second valve portion 322 can be tightly and reliably stopped against the second sealing stopper 35 under the action of the pressure difference between the first air duct 312 and the second air duct 313, and the larger the pressure difference, i.e. the larger the suction force of the first suction source, the larger the pressure F2 applied to the second valve portion 322, the better the sealing effect of the second air duct 313.

As shown in fig. 21, when the first suction source is turned off and the second suction source is turned on, the first air duct 312 returns to atmospheric pressure when communicating with the outside atmosphere, the second air duct 313 is negative pressure under the suction action of the second suction source, the valve 32 is rotated clockwise as shown by the hollow arrow in fig. 21 under the action of the pressure difference between the first air duct 312 and the second air duct 313, the air flow direction when the second air duct 313 is no longer closed by the second valve portion 322 is shown by the solid arrow in fig. 21, and at this time, the air flow in the second air duct 313 is the sum of the air flow in the first air duct 312 and the air flow in the air intake passage 311.

As shown in fig. 22, when the valve 32 is rotated to the second position shown in fig. 22, the second valve portion 322 abuts against the inner wall of the second air duct 313 and/or the first valve portion 321 abuts against the first sealing abutting element 34, the second air duct 313 is completely opened, the first air duct 312 is completely closed, and the air flow of the second air duct 313 is completely provided by the air inlet channel 311. Since the second air duct 313 is under negative pressure, the first air duct 312 is under normal pressure when communicating with the outside atmosphere, so that the first valve portion 321 can tightly and reliably stop against the first sealing stop member 34 under the action of the pressure difference between the first air duct 312 and the second air duct 313, and the larger the pressure difference, i.e. the larger the suction force of the second suction source, the larger the pressure F1 applied to the first valve portion 321, the better the sealing effect of the first air duct 312.

It will be appreciated that regardless of the sequence of actuation of the first and second suction sources, and regardless of the position of the valve 32, the valve 32 will automatically, accurately and reliably switch to the correct position under the pressure differential between the first and

second air paths

312, 313 as long as the suction sources are switched.

In addition, it is understood that, in order to ensure the reliability of the closing effect of the first air duct 312 and the second air duct 313, the respective portions of the first sealing abutment 34, the second sealing abutment 35, the first air duct 312 and the second air duct 313 may be configured to match the corresponding positions of the valve 32, so that when the valve 32 reaches the first position, as shown in fig. 20, the first valve portion 321 may fit the inner wall of the first air duct 312 without a gap, the second valve portion 322 may fit the second sealing abutment 35 without a gap, and when the valve 32 reaches the second position, as shown in fig. 22, the second valve portion 322 may fit the inner wall of the second air duct 313 without a gap, and the first valve portion 321 may fit the first sealing abutment 34 without a gap.

In some embodiments of the present invention, the inlet duct section of the first duct 312 extends along a first straight direction L1, the inlet duct section of the second duct 313 extends along a second straight direction L2, and the angle a between the first straight direction L1 and the second straight direction L2 satisfies: 0 ° ≦ a ≦ 180 °, that is, the inlet duct segments of the first and

second air ducts

312, 313 may be arranged in parallel (i.e., a ≦ 0 °, as shown in fig. 29-30), or vertically (i.e., a ≦ 90 °, as shown in fig. 18-24), or at an acute or obtuse angle of intersection (i.e., 90 ° < a < 180 °, as shown in fig. 25-26), or side-by-side (i.e., a ≦ 180 °, as shown in fig. 27-28). Therefore, the air duct switching valve 3 can be suitable for cleaning equipment with different structural forms, namely, the air duct switching valve 3 with a corresponding shape can be designed by setting the specific structure and position of the air duct switching valve 3 according to the requirements of the cleaning equipment, so that different actual requirements are met, and the adaptability of the air duct switching valve 3 according to the embodiment of the invention is further improved.

Furthermore, it is understood that, in conjunction with the above description of the operation principle of the air duct switching valve 3 shown in fig. 18 to 22, referring to the air flow direction indicated by the solid arrows in fig. 23 to 30, those skilled in the art can understand the operation principle of the air duct switching valve 3 shown in fig. 23 to 30, and the description thereof is omitted here.

As shown in fig. 18 to 24, when the above-mentioned angle a is satisfied: when a is equal to 90 °, that is, when the inlet air duct section of the first air duct 312 and the inlet air duct section of the second air duct 313 are vertically disposed, if the first valve portion 321 and the second valve portion 322 are both flat valve plates 320, the first valve portion 321 and the second valve portion 322 may be disposed in parallel (i.e., the central plane of the first valve portion 321 is parallel to the central plane of the second valve portion 322, as shown in fig. 18), or disposed in a coplanar manner (i.e., the central plane of the first valve portion 321 is coplanar with the central plane of the second valve portion 322, as shown in fig. 23 to 24). Therefore, the structure of the valve 32 can be simplified better, and the air duct switching operation can be realized simply, effectively and reliably. In summary, when the shapes and relative positions of the first air duct 312 and the second air duct 313 are changed, only the shape and the setting position of the valve 32 need to be adjusted to achieve the air duct switching effect of the embodiment of the present invention, which is not described herein again.

In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning apparatus, comprising:

the vertical machine assembly comprises a push rod and a floor brush, and the floor brush is arranged at the lower end of the push rod;

a horizontal machine assembly including a first suction device and a wheel base assembly for carrying the first suction device and including wheels, the horizontal machine assembly being detachably connected to the vertical machine assembly, the horizontal machine assembly moving with the vertical machine assembly when the horizontal machine assembly is mounted to the vertical machine assembly;

a handset assembly including a second suction device disposed downstream of the dirt cup assembly, a dirt cup assembly disposed in juxtaposition with the first suction device, the handset assembly having a suction inlet communicating to a dirty air inlet of the dirt cup assembly, the handset assembly being removably connectable with the horizontal machine assembly, wherein the suction inlet of the handset assembly communicates to the horizontal machine assembly when the handset assembly is mounted to the horizontal machine assembly, the first suction device being disposed downstream of the dirt cup assembly, wherein the vertical machine assembly has at least one of a vertical mode of use, a horizontal mode of use, a handheld mode of use, and a handheld mode of use,

in the vertical use mode, the vertical machine assembly, the horizontal machine assembly and the hand held machine assembly are assembled together for use, utilizing at least one of the first suction device and the second suction device as a suction source,

in either the horizontal or hand-held use modes, the horizontal machine assembly and the hand-held machine assembly are assembled together and used separately from the vertical machine assembly, using at least one of the first and second suction devices as a source of suction,

in the hand-held use mode, the hand piece assembly is used separately from both the horizontal machine assembly and the vertical machine assembly, utilizing the second suction device as a suction source.

2. The cleaning apparatus defined in claim 1, wherein the power of the second suction device is less than the power of the first suction device.

3. The cleaning apparatus defined in claim 1, wherein the second suction device comprises a dc motor, the handset assembly comprises a rechargeable battery connected to the dc motor, the first suction device comprises an ac motor, and the horizontal machine assembly comprises an electrical connection to the ac motor, the electrical connection being electrically connected to the rechargeable battery when the handset assembly is mounted to the horizontal machine assembly.

4. The cleaning apparatus of claim 1, wherein the cleaning apparatus has a first mode of operation and a second mode of operation when the handset assembly is mounted to the horizontal machine assembly,

in the first mode of operation, the second suction device is operating, the first suction device is off, and the airstream being dusted by the dirt cup assembly flows to the second suction device,

in the second mode of operation, the first suction device is operated, the second suction device is deactivated, and the airstream being dusted by the dirt cup assembly flows to the first suction device.

5. The cleaning apparatus as claimed in claim 1, wherein the wheel-seat assembly includes a seat body, the wheel is rotatably provided on the seat body, the first suction device is provided in the seat body, the seat body has an air inlet and an air outlet on an outer surface thereof, the seat body has an air supply passage therein communicating between the air inlet and the air outlet, and the air outlet is in butt communication with the air suction port when the hand-held set assembly is mounted to the horizontal set assembly.

6. The cleaning apparatus as claimed in claim 5, wherein the floor brush has a dust suction port, the push rod has an air inlet channel therein communicating with the dust suction port, and the air inlet is communicated with the air inlet channel directly or through an external hose when the horizontal machine assembly is mounted on the vertical machine assembly.

7. The cleaning apparatus defined in claim 6, wherein the hand piece assembly is removably connected to the upright assembly, the hand piece assembly being disposed at the upper end of the push rod when the hand piece assembly is mounted to the upright assembly, the suction opening being in abutting communication with the air intake passage.

8. The cleaning apparatus of claim 1, further comprising an air duct switching valve that switches one of the second suction device and the first suction device to communicate with the clean air outlet of the dirt cup assembly when the hand piece assembly is mounted to the horizontal machine assembly.

9. The cleaning apparatus of claim 8, wherein the horizontal machine assembly has a first switching port thereon communicating to the first suction device, the hand piece assembly has a second switching port thereon, the first switching port is in docking communication with the second switching port when the hand piece assembly is installed in the horizontal machine assembly, the air duct switching valve is integrated with the hand piece assembly and located downstream of the dirt cup assembly, and the clean air outlet of the dirt cup assembly is switched to communicate with one of the second suction device and the second switching port.

10. The cleaning apparatus defined in claim 9, wherein the duct switching valve comprises:

the valve body is internally provided with an air inlet channel, a first air channel and a second air channel, an inlet of the first air channel and an inlet of the second air channel are communicated to the air inlet channel, an outlet of the first air channel is communicated to the second switching port, and an outlet of the second air channel is communicated to the second suction device;

the valve is arranged in the valve body and is positioned at the inlet of the first air channel and the inlet of the second air channel;

the rotating shaft is arranged between the valve and the valve body so that the valve can rotate relative to the valve body;

when the air pressure in the first air duct is smaller than the air pressure in the second air duct, the valve rotates towards a first position for opening the inlet of the first air duct and closing the inlet of the second air duct;

when the air pressure in the second air duct is smaller than the air pressure in the first air duct, the valve rotates towards a second position for opening the inlet of the second air duct and closing the inlet of the first air duct.