JP7778417B2 - cleaning equipment - Google Patents

Description

The present invention relates to a cleaning device that cleans a surface to be cleaned.

For example, Patent Document 1 discloses an easily portable handheld suction cleaner as a cleaning device that sucks up liquid.

Japanese Patent Application Laid-Open No. 2021-87780

However, in the cleaning device disclosed in Patent Document 1, the suction port is located on the bottom, making it easy to work on floors, but when cleaning surfaces in various directions, the entire device must be rotated, which makes the device somewhat heavy and therefore not very user-friendly.
SUMMARY OF THE INVENTION An object of the present invention is to provide a cleaning device that is easy to use on a variety of cleaning surfaces.

The cleaning device of the present invention is a cleaning device capable of sucking in air and liquid, and comprises a main body, an electric blower housed in the main body and generating suction force, and a first suction port and a second suction port provided in the main body, and is capable of sucking in air and liquid from one of the first suction port and the second suction port.
The cleaning device set of the present invention is a cleaning device set comprising the above-mentioned cleaning device and a charging stand, wherein the charging stand has a drain hole provided at the bottom and a charging contact provided above the drain hole.
The cleaning device set of the present invention is a cleaning device set comprising the above-mentioned cleaning device, a charging base, and a storage case, wherein the storage case has an engaging portion that protrudes sideways, and the engaging portion engages with an engaged portion formed on the charging base, thereby arranging the storage case alongside the charging base.

With the above configuration, the cleaning device has a second suction port in addition to the first suction port, which improves workability when cleaning various surfaces.

1 is a perspective view of a cleaning device according to an embodiment, seen from above on the front left side. FIG. 2 is a perspective view of the cleaning device with the hose portion removed, viewed from above on the front right side. FIG. 2 is a side view of the device body as seen from the right side. (a) is an oblique view from the upper right rear of the device main body, showing the state in which the tank section has been moved forward and separated from the suction device section; (b) is an oblique view from the lower right front of the device main body, showing the state in which the tank section has been moved forward and separated from the suction device section. FIG. 2 is a schematic cross-sectional view of the device body cut at the center in the left-right direction. 6A is an enlarged cross-sectional view of only the tank portion in FIG. 5, and FIG. 6B is an exploded perspective view of an inflow direction change portion in the tank. 1A and 1B are perspective views of the tank section in an exploded state, in which FIG. 1A is a view from the front upper right and FIG. 1B is a view from the rear lower right. 1A and 1B are perspective views of the upper tank portion in an exploded state, in which FIG. 1A is a view from the front upper right and FIG. 1B is a view from the rear lower left. 1A and 1B are enlarged cross-sectional views of the front of the tank section, where (a) is a cross-sectional view showing the state in which the hose section of the hand tool section is not attached to the second suction port, and (b) is a cross-sectional view showing the state in which the hose section is connected to the second suction port. FIG. 2 is a perspective view of the suction device section in an exploded state, as viewed from the upper right front side. FIG. 2 is a perspective view of the disassembled suction device unit as viewed from the lower rear left. 1A is a perspective view of the front part of the suction device unit as seen from the front right bottom, and FIG. 1B is a partial cross-sectional view of the valve mechanism part of the suction device unit. (a) is a diagram showing the configuration of the exhaust path from the electric blower in the suction device section with the right case member removed, and (b) is a cross-sectional view of the exhaust path of the main body section seen from the rear. 10A and 10B are diagrams showing a state in which a cover member having an exhaust slit formed therein has been removed from the bottom of the main body, where FIG. 10A is an upper left perspective view, and FIG. 10B is a lower left perspective view. 1A is a block diagram showing a control system of the cleaning device, and FIG. 1B is a diagram showing the inclination of the cleaning device body detected by an inclination sensor in the control system. 4 is a flowchart showing the contents of drive stop control of the electric blower executed by the control unit. FIG. 1A is a perspective view showing a cleaning device set including a cleaning device, a charging stand, and a storage box, and FIG. 1B is a view showing the hand tool unit and liquid spray removed from the storage box. 1A and 1B are perspective cross-sectional views showing the inside of a charging stand, in which FIG. 1A is a perspective view of the same cross-sectional view seen from above, and FIG. 1B is a perspective view of the same cross-sectional view seen from the bottom. 1A is a perspective view of the storage box as seen from above, and FIG. 1B is a perspective view of the storage box attached to the charging stand as seen from the bottom. 10 is a flowchart showing a modified example of the drive stop control of the electric blower. 10A shows a modified tank section, where FIG. 10A is a schematic cross-sectional view taken along the center in the left-right direction, and FIG. 10B is a perspective view of the tank section taken along the center in the left-right direction as viewed from the lower rear left.

<Overview>
A first cleaning device according to one aspect of the embodiment is a cleaning device capable of sucking in air and liquid, and comprises a main body, an electric blower housed in the main body and generating suction force, and a first suction port and a second suction port provided in the main body, and is capable of sucking in air and liquid from one of the first suction port and the second suction port.
According to the cleaning device having the above-described configuration, the second suction port can be used separately from the first suction port, which improves workability when cleaning various cleaning surfaces.

A second cleaning device according to another aspect of the embodiment is the first cleaning device, and includes a cover member that switches the second suction port between an open state and a closed state, a tank portion that is provided on the main body portion and that stores liquid sucked from the first suction port and the second suction port, a first suction path that is provided on the main body portion and that connects the first suction port and the tank portion, and a second suction path that is provided on the main body portion and that connects the second suction port and the tank portion, and can assume a first state in which suction is performed through the first suction path when the second suction port is closed, and a second state in which suction is performed through the second suction path when a hose portion is connected to the second suction port.
This allows for excellent operability, as suction is performed through the first suction port when the second suction port is closed, and through the second suction port when the hose is connected to the second suction port, rather than through the first suction port. Also, the suction ports can be switched with a simple operation.

A third cleaning device according to another aspect of the embodiment is the first or second cleaning device, wherein the second suction port is provided on the first suction path, and when the hose portion is connected to the second suction port, the first suction path is blocked by the hose portion.
According to this, the suction path can be easily switched from the first suction path to the second suction path by simply connecting the hose portion to the second suction port.Furthermore, this can be implemented with a simple structure.

A fourth cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to third cleaning devices, which includes a handle portion above the main body portion, and the front, top, and rear surfaces of the handle portion are parallel to the front, top, and rear surfaces of the main body portion, respectively.
This not only gives the device a more unified appearance, but also, by locating the first suction port on the extension of the front part of the handle, the user can easily grasp the position of the first suction port when holding the handle to use the cleaning device, thereby improving operability.

A fifth cleaning device according to another aspect of the embodiment is any of the first to fourth cleaning devices, further comprising an operating portion disposed inside the handle portion.
This allows the user to easily operate the operating section while holding the handle with one hand, improving operability.

A sixth cleaning device according to another aspect of the embodiment is configured such that, in the first to fifth cleaning devices, the electric blower is positioned so that the center of gravity of the electric blower is located directly below the handle portion.
As a result, the center of gravity of the main body is positioned directly below the handle, which improves the weight balance compared to when the center of gravity is not positioned directly below the handle, and the user feels that the weight of the device is lighter.

A seventh cleaning device according to another aspect of the embodiment is any of the first to sixth cleaning devices, wherein a front surface of the tank portion forms part of the first suction path and part of the second suction path.
Since some of the components of the first and/or second suction paths can be used as the front surface of the tank, the number of parts can be reduced and the structure can be simplified.

An eighth cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to seventh cleaning devices, wherein in the main body, a battery is arranged below the electric blower, the tank is arranged in front of the electric blower and the battery, the first suction path and the second suction path are arranged in front of the tank, and a control unit is arranged immediately behind the electric blower and the battery.
This allows the main body to be configured compactly.

A ninth cleaning device according to another aspect of the embodiment is the first to eighth cleaning devices, wherein the main body has a cover, and the cover constitutes part of the first suction path and the second suction path, and is detachable from the main body together with the tank.
This makes it possible to remove the cover and easily clean the first suction path and the second suction path.

A tenth cleaning device according to another aspect of the embodiment is any one of the first to ninth cleaning devices, wherein the tank portion is detachably attached to the main body portion in a horizontal direction.
This prevents the liquid in the tank from shaking, making it less likely for the liquid to spill when the tank is removed.

An eleventh cleaning device according to another aspect of the embodiment is any one of the first to tenth cleaning devices, wherein the tank portion has an opening on the rear surface that connects to the electric blower, and the periphery of the opening is sealed with a gasket.
This allows for improved sealing performance with a simple configuration. Also, if the mounting direction of the tank unit and the direction in which the packing collapses are aligned, the sealing performance can be improved.

A twelfth cleaning device according to another aspect of the embodiment is the first to eleventh cleaning devices, wherein the tank portion comprises a first tank portion and a second tank portion that can be separated in the vertical direction, and the first tank portion and the second tank portion are engaged with each other by engaging portions provided at the front and rear of the first tank portion and the second tank portion, respectively.
This allows the tank to be separated into upper and lower halves, making it easy to discard the sucked liquid. The engaging parts of the upper and lower first and second tank parts are located at the front and back of the tank part, with the front engaging part hidden by the cover and the rear engaging part hidden by the main body, making them inaccessible from the outside and preventing accidental disengagement.

A thirteenth cleaning device according to another aspect of the embodiment is the first to twelfth cleaning devices, wherein the tank portion has a full water position set in the lower tank portion of the first tank portion and the second tank portion.
This prevents the liquid from accidentally spilling outside when the tank section is divided into upper and lower sections when the tank section is full of water.

A fourteenth cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to thirteenth cleaning devices, which includes a battery that drives the electric blower, a control unit that controls the electric blower, and an exhaust path that discharges exhaust air from the electric blower outside the device, and the battery and the control unit are arranged outside the exhaust path.
This makes it difficult for liquids, dust, etc., to adhere to the battery or control unit, even if the exhaust air sent out by the electric blower contains such liquids, dust, etc.

A fifteenth cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to fourteenth cleaning devices, which includes a battery arranged below the electric blower and driving the electric blower, a control unit that controls the electric blower, and an exhaust path that discharges exhaust from the electric blower outside the device via an exhaust port, the exhaust path passing below the battery and reaching the exhaust port.
This allows the exhaust path from the electric blower to the exhaust port to be longer, thereby reducing the noise of the electric blower leaking outside the machine.

A sixteenth cleaning device according to another aspect of the embodiment is any one of the first to fifteenth cleaning devices, wherein the exhaust port is formed in a cover member that is detachable from the main body.
This makes it easier to clean up any debris that has accumulated in the exhaust path. Cleaning also helps prevent unpleasant odors caused by debris.

A seventeenth cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to sixteenth cleaning devices, which includes a tank section provided in the main body section for storing liquid sucked from the first suction port and the second suction port, a capacitance sensor provided on the side of the tank section for detecting the liquid level in the tank section, and a control unit for controlling the operation of the electric blower, and the control unit stops the electric blower when it determines that the tank section is full of water based on the detection result of the capacitance sensor.
This allows the capacitance sensor to detect whether the tank is full of water, eliminating the risk of the float getting caught and falsely detecting the liquid level, as occurs when a liquid level sensor using a float is used.

An 18th cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to seventeenth cleaning devices, which includes an inclination sensor that detects the inclination of the main body and a control unit that controls the operation of the electric blower, and the control unit stops the electric blower when the inclination angle detected by the inclination sensor is equal to or greater than a predetermined threshold value.
By stopping the electric blower when the main body is tilted to a predetermined angle or more in this way, it is possible to prevent the liquid in the tank from being sucked into the electric blower, thereby preventing breakdowns in the electric blower.

A 19th cleaning device according to another aspect of the embodiment is configured such that, in the first to eighteenth cleaning devices, the thresholds include a first threshold and a second threshold greater than the first threshold, and the control unit stops the electric blower after a first time has elapsed if the tilt angle detected by the tilt sensor is equal to or greater than the first threshold and less than the second threshold, and stops the electric blower after a second time shorter than the first time has elapsed if the tilt angle detected by the tilt sensor is equal to or greater than the second threshold.
This allows the fan to be stopped when the main body is slightly tilted and this state continues for a certain period of time, and when the main body is significantly tilted, the fan can be stopped in a shorter time, achieving both ease of use and protection of the electric blower.
In other words, if it becomes slightly tilted, it may return to its original position in a short time, and in this case cleaning can be performed without stopping the electric blower.

A twentieth cleaning device according to another aspect of the embodiment is any one of the first to nineteenth cleaning devices, wherein the main body comprises a blow-out member extending from the first suction path and the second suction path into the tank and having a blow-out outlet, and a suction guide member extending from the suction port of the electric blower into the tank, the suction guide member having an opening for communicating with the suction port of the electric blower and a shielding portion for shielding liquid or air blown from the blow-out outlet directly toward the opening.
This allows the shielding portion to shield liquid flowing directly from the air outlet toward the opening, thereby preventing the liquid from being sucked into the electric blower.

A 21st cleaning device according to another aspect of the embodiment is any one of the first to 20 cleaning devices, wherein the blowing direction from the blowing outlet and the suction direction from the opening of the suction guide member are perpendicular to each other.
This further prevents the liquid blown out from the outlet from being sucked into the electric blower.

A 22nd cleaning device according to another aspect of the embodiment is any one of the first to 21st cleaning devices, further comprising a cap member loosely inserted from the tip end side of the blow-out member so as to cover the blow-out outlet.
As a result, the cap member prevents the airflow from the outlet from hitting the surface of the liquid collected in the tank, thereby reducing splashes inside the tank and further preventing the liquid from being sucked into the electric blower.

A 23rd cleaning device according to another aspect of the embodiment is any one of the first to 22nd cleaning devices, further comprising a cover that covers the electric blower, the cover having a valve mechanism that opens under negative pressure during suction.
This eliminates the risk of liquid entering the electric blower when the electric blower is not being driven, with a simple configuration.

A 24th cleaning device, which is another aspect of the embodiment, is a cleaning device according to any one of the first to 23rd cleaning devices, in which the first suction port is provided on the bottom surface of the main body at one end in a direction parallel to the placement surface, a brush whose bristles protrude downward from the bottom surface is provided adjacent to the first suction port on the bottom surface, and an abutment member is provided on the bottom surface of the main body, in an area opposite the one end from the first suction port and the brush, that abuts against the placement surface when the main body is placed on the placement surface so that the bristles of the brush do not come into contact with the placement surface.
This prevents the brush from hitting the surface, preventing the brush tip from being crushed. Also, if a capacitance sensor is used to detect whether the tank is full, the sensor will be slightly farther away from the surface, making it less susceptible to the influence of the surface, and reducing false detections.

A first cleaning device set according to another aspect of the embodiment is a cleaning device set including cleaning devices 1 to 24 and a charging base, wherein the charging base has a drain hole at the bottom and a charging contact point above the drain hole.
This makes it safer because the contacts are less likely to get wet even if water leaks from the cleaning device during charging.

A second cleaning device set according to another aspect of the embodiment is a cleaning device set comprising cleaning devices 1 to 24, a charging base, and a storage case, wherein the storage case has an engaging portion that protrudes laterally, and the engaging portion engages with an engaged portion formed on the charging base, thereby arranging the storage case alongside the charging base.
This allows the storage case to be easily attached to the charging base.

First Embodiment
1. Overall Configuration of the Cleaning Device Fig. 1 is a perspective view of the cleaning device X according to this embodiment, seen from the upper left side. The cleaning device X is a so-called wet cleaning device that can suck air (which may contain dust, etc.) and liquid. It is also possible to use the cleaning device X without using liquid. Hereinafter, "air and/or liquid" will be referred to simply as "liquid."

1, the cleaning device X includes a device main body 01 and a hand tool 3. The device main body 01 includes a main body portion 1 and a handle portion 2.
The main body 1 includes a suction device 4, a tank 5, and a cover 6, and a handle 2 is provided on the top of the main body 1 for the user to grip.
A first suction port 61 is provided at the lower end of the cover part 6, and a second suction port 62 is provided at a position above the first suction port 61 on the cover part 6. In other words, the cover part 6 is provided with the first suction port 61 and the second suction port 62.
The suction device 4 includes an electric blower 71 (see FIG. 5) that generates suction force, which sucks liquid from the first suction port 61 or the second suction port 62. The sucked liquid is stored in the tank 5.

The hand tool 3 includes a hose portion 31 , a grip portion 32 , and a head portion 33 .
The hose portion 31 has connection portions 311 and 312 at both ends thereof, and is connected to the lower end of the grip portion 32 via the connection portion 311, and is detachably connected to the second suction port 62 of the main body portion 1 via the connection portion 312.
The head portion 33 is provided at the tip of the grip portion 32 and is provided with a suction port 331 for sucking liquid from the surface to be cleaned, and a brush portion 332 consisting of multiple bundles of brushes arranged upright for scraping off dirt and the like from the surface to be cleaned.

FIG. 2 is a perspective view of the cleaning device X when the hose portion 31 of the hand tool 3 is removed from the main body portion 1, as viewed from the upper right side.
As shown in the figure, when the hand tool 3 is removed, the second suction port 62 is closed in an openable and closable manner by a lid member 621 provided on the cover part 6. The lid member 621 is supported by a pair of upright support plates 622 via support shafts 623 in an openable and closable manner.
In this embodiment, the device has a first suction path connecting the first suction port 61 and the tank unit 5, and a second suction path connecting the second suction port 62 and the tank unit 5, and is configured to suck liquid by switching between a first state in which the first suction path is used for suction when the second suction port 62 is blocked and in a closed state (the state in FIG. 2), and a second state in which the second suction path is used for suction when the hose unit 31 is connected to the second suction port 62 (the state in FIG. 1). Details will be described later.
In the following description, the side of the cleaning device X on which the cover portion 6 is provided is defined as the front side, the direction perpendicular to the front-to-back direction and the up-down direction is defined as the left-to-right direction, and the right side when looking at the cover portion 6 from the front is defined as the right side in the left-to-right direction (see the three-way arrow shown in the lower right of Figure 1).

FIG. 3 is a side view of the cleaning device X of FIG. 2 as seen from the right side.
The handle portion 2 has a U-shape, a C-shape, a V-shape, or a combination thereof. Here, the space formed with the main body 1 is trapezoidal or a similar shape with a slanted front oblique side and a vertical rear oblique side. In other words, the top surface 21 of the handle portion 2 is parallel to the top surface 41 of the main body 1, and the rear surface 22 of the handle portion 2 is parallel to the rear surface 42 of the main body 1. Furthermore, the front side 23 of the handle portion 2 is parallel to the front surface of the cover portion 6 of the main body 1. Note that "parallel" here includes cases where the two intersect at an angle of 10° or less.
3, the first suction port 61 is provided at the bottom of the tip on an extension of the front surface 63 of the main body 1, so that the user can intuitively find the position of the first suction port 61 when gripping the handle 2. In other words, because the first suction port 61 is provided on the front end side of the main body 1 and below the cover 6, its position is easy to find.
An operating unit 24 is provided at the position where the lower surface of the horizontal portion 26 of the handle 2 intersects with the rear surface of the inclined portion 27. As shown in Figure 1, a display unit 25 is provided on the inclined portion 27 of the handle 2 to show the operating status of the device to the user.

5 , the operating unit 24 includes a lever 241 that the user operates with the index finger or the like, a biasing means (e.g., a compression spring 242) that biases the lever 241 downward, and a limit switch 244 built into the handle 2. When the user operates the lever 241, the lever 241 comes into contact with a switch button 243 of the limit switch 244, and a power-on signal is sent to the control unit 9.
The display unit 25 has a board 251 equipped with multiple LEDs 253 inside the handle portion 2, and based on instructions from the control unit 9, lights up the corresponding LEDs 253 to display information such as the operating status of the cleaning device X to the user.
4, the tank unit 5 can be pulled out in the direction of arrow A (toward the front in a direction parallel to the front-to-rear direction of the cleaning device X) by operating the operating part 541. This allows the tank unit 5 to be moved horizontally, so even if the tank unit 5 is full of liquid, there is little risk of the liquid spilling when the tank unit 5 is removed, making it easier to dispose of the liquid.

Figure 4 shows the tank section 5 separated from the main body section 1, where (a) is a view from the upper right rear side of the main body section 1, and (b) is a view from the lower right front side of the main body section 1.
4(a), the tank unit 5 is provided with a guide groove 54 along the pull-out direction A (front-to-back direction in FIG. 1), and when the tank unit 5 is attached to the suction device unit 4, this guide groove 54 engages with a guide rail portion 411 along the A direction of the suction device unit 4, and movement in the A direction is locked by a locking mechanism provided on the tank unit 5. The guide grooves 54 are formed as a pair on the upper side of the tank unit 5, and the guide rail portions 411 are formed as a pair, bending inward in the left-right direction from the side portions along the A direction on the top surface of the suction device unit 4.
The locking mechanism is constituted by an engaging portion (for example, a protrusion) 542 of the tank portion 5 and an engaging portion (for example, a recess) 412 of the suction device portion 4 , and the engaging protrusion portion 542 engages with the engaging recess 412 .
The tank part 5 is provided with a known direction change mechanism such as a crank mechanism, and is configured so that by pushing in the operating parts 541, the engaging protrusions 542 are recessed into the upper surface of the tank part 5. As a result, by pinching the pair of operating parts 541 between, for example, the thumb and index finger and pushing them inward in the left-right direction, the engagement between the engaging protrusions 542 and the engaging recesses 412 can be released.

2. Structure of Each Part The structure of each part of the cleaning device X will be described in detail below.
(1) Tank Section Fig. 5 is a schematic cross-sectional view of the main body 1 of the cleaning device X cut at the center in the left-right direction (see Fig. 1). Fig. 6(a) is an enlarged cross-sectional view of the tank section 5 taken out of the cross-sectional view of Fig. 5.
The tank unit 5 has a tank inlet hole 525 for suction at the top of the front wall, a mounting hole 527 for the electric blower 71 at the top of the rear wall, and a tank chamber 50 inside. The tank unit 5 is vertically separable into a lower tank unit 51 and an upper tank unit 52, and its front side is covered by a cover unit 6. The lower tank unit 51 corresponds to an example of the lower tank unit of the first tank unit and the second tank unit.

The tank section 5 has a similar shape to the main body section 1, and is trapezoidal with a sloping front and an upright rear. The tank section 5 is cut in the center in the vertical direction, and the lower part is the lower tank section 51 and the upper part is the upper tank section 52.
The lower tank portion 51 and the upper tank portion 52 are fixed to each other by fixing structures 55 and 56 so as to be disassembled.
The tank 5 includes a valve housing member 57 into which a valve mechanism 73 is inserted, which opens and closes the suction port of the suction device 4 (electric blower 71). The valve housing member 57 is provided with a filter 574 at an opening 571a that communicates with the suction port of the suction device 4. The valve housing member 57 is a suction guide member that extends from the suction port of the electric blower 77 into the tank 5 and guides the suction toward the electric blower 77.
The tank unit 5 has a brush unit 511 near the first suction port 61. In this example, the brush unit 511 is provided on the rear side of the first suction port 61.
The tank portion 5 has an inflow direction change portion 53 that prevents the sucked liquid from being sprayed directly onto the stored liquid.

(1-1) Upper and lower divided structure of the tank section Figure 7 shows the state when the cover section 6 is removed from the front of the tank section 5 and the tank section 5 is further divided into a lower tank section 51 and an upper tank section 52, where Figure 7(a) is a perspective view seen from the front upper right side, and Figure 7(b) is a perspective view seen from the rear lower right side.

As shown in FIG. 7( a ), the lower tank portion 51 has an opening facing upward, and a rectangular packing 513 that conforms to the shape of the upper edge of the opening is replaceably attached to the upper edge of the opening.
As shown in FIG. 7B, the upper tank portion 52 has a downward opening of the same size and shape as the opening of the lower tank portion 51 .
The tank sections 51, 52 are fixed in place by a front fixing structure 56 and a rear fixing structure 55 provided at the front and rear of the tank section 5, with the packing 513 in close contact with each other. The cross section of the packing 513 is square or circular. If the cross section were rectangular, it could be installed in a twisted state (with the short sides abutting instead of the long sides that are intended to abut), which could cause water leakage.

The front fixing structure 56 is composed of a hook portion 561 provided on the front wall portion 526 of the upper tank portion 52 and an engaged portion 562 provided on the lower tank portion 51. The engaging relationship may be reversed.
The front wall 526 of the upper tank 52 extends downward to cover the front surface 514 of the lower tank 51, and a hook 561 is formed at its lower end. The engaged portion 562 is formed at the lower end of the front surface 514 of the lower tank 51, and the two engage with each other.
The rear fixing structure 55 comprises an engaging protrusion 551 provided on the lower part of the rear wall surface of the upper tank part 52 and an engaging hole 552 provided on the upper part of the rear wall surface of the lower tank part 51. The engaging protrusion 551 is biased in a direction that causes it to protrude outward (rearward) in the front-to-rear direction by a biasing member such as a built-in compression spring. Note that the engaging relationship between the engaging protrusion 551 and the engaging hole 552 may be reversed.

When attaching the upper tank part 52 to the lower tank part 51, first, the hook part 561 is engaged with the engaged part 562 on the front side of the tank part 5, and then the engaging protrusion part 551 on the rear side of the tank part 5 is fitted into the engaging hole part 552 to lock it.
Conversely, when separating the upper tank portion 52 from the lower tank portion 51, the engaging protrusion 551 on the rear side of the tank portion 5 is pushed in to release the engagement with the engaging hole portion 552, then the rear side of the upper tank portion 52 is raised and the hook portion 561 on the front side of the tank portion 5 is disengaged from the engaged portion 562 to separate them.
The cover 6 that covers the front wall 526 of the upper tank 52 is also configured to be detachable from the front wall 526, so that the three members can be disassembled for cleaning.

(1-2) Valve accommodating member As shown in FIG. 6, the valve accommodating member 57 is disposed inside the upper tank portion 52 at the rear upper portion thereof so as to extend parallel to the front-rear direction.
As shown in FIG. 8( a), the valve housing member 57 has a bottomed tubular portion 571 having an opening 571a (see FIG. 6) formed by removing the upper portion of the bottom portion 572 and the side surface in the vicinity thereof, and a large-diameter cylindrical portion 573 formed on the opposite side of the bottom portion 572 and connected to the electric blower 71. In this example, the bottom portion 572 is located on the front side. The opening 571a is formed facing upward, making it difficult for liquid to enter the bottomed tubular portion 571. Furthermore, a lower portion 571b of the opening 571a in the bottomed tubular portion 571 serves as a shield that blocks liquid or air flowing directly from the outlet 5312a of the inflow direction changer 53 toward the opening 571a.
5, the valve mechanism 73 of the electric blower 71 is fitted into the large diameter cylindrical portion 573. The valve mechanism 73 will be described in detail later.
A replaceable filter 574 is attached to the opening 571 a to prevent foreign matter such as dust from being sucked into the electric blower 71 .
As shown in FIG. 8( b ), a mounting hole 527 is provided on the rear surface of the tank portion 5 , and the valve housing member 57 is attached by inserting the bottomed tubular portion 571 of the valve housing member 57 into this mounting hole 527 .

(1-3) Brush Unit As shown in Fig. 3, the brush unit 511 is provided in a position close to the first suction port 61 on the front side of the lower tank unit 51 (for example, rearward of the first suction port 61). The tips (bristles) of the brushes of the brush unit 511 protrude downward from the bottom surface 4a of the main body 1 and the bottom surface 51a of the lower tank unit 51. This allows dust and dirt to be removed from the surface to be cleaned when cleaning using the first suction port 61.
Protrusions (ribs) 528a, 528b, 400a, and 400b that protrude downward are provided on the bottom surface of the main body 1 (suction device 4 and tank 5) in an area behind the brush part 511. The lower ends of the protrusions 528a, 528b, 400a, and 400b are configured to be at the same or approximately the same position as the lower end of the brush part 511. This reduces deformation of the bristles of the brush part 511 due to the mounting surface (FL) when the main body 1 is placed on the mounting surface.
The first suction port 61 is inclined at an angle α with respect to the placement surface (the bottom surface of the main body 1). In other words, the angle of the first suction port 61, the height of the brush part 511, the heights of the protrusions 528a, 528b, 400a, and 400b, and the distance between the first suction port 61 and the brush part 511 are set so that when the main body 1 is tilted forward by the angle α for cleaning, the protrusions 528a, 528b, 400a, and 400b move away from the surface to be cleaned and the tip of the brush part 511 reliably contacts the surface to be cleaned.
The protective protrusions of the brush part 511 are not limited to a rib shape, but may be boss-shaped. The rib shape may extend in the left-right direction or the front-rear direction.

(1-4) Suction Path In this embodiment, the cleaning device X has two suction ports: a first suction port 61 provided at the bottom end of the cover part 6 and a second suction port 62 provided at the front surface 63 of the cover part 6 (see FIG. 7(a)).
The suction path from the suction port to the tank chamber 50 of the tank unit 5 varies depending on the suction port selected by the user.

(a) First Suction Path The first suction path is a path that continues from the first suction port 61 to the tank chamber 50 (hereinafter referred to as the "first suction path F1").
8A and 8B are exploded perspective views of the upper tank portion 52, in which FIG. 8A is a view from the upper right front side and FIG. 8B is a view from the lower right rear side.
As shown in Figure 8 (a), a tank inlet hole 525, which serves as an entrance to the interior of the tank chamber 50, is provided at the top of the inclined surface 522 of the front wall portion 526 of the upper tank portion 52, and a rib 5261 is formed on the inclined surface 522 so as to surround this tank inlet hole 525 and extend downward to the first suction port 61.
On the other hand, as shown in FIG. 7B, a rib 641 having the same shape as the rib 5261 is formed on the rear surface 64 of the cover portion 6 .
When the cover unit 6 is attached to the front wall 526 of the upper tank unit 52, the rib 5261 and the rib 641 fit together. As a result, a first suction path F1 is formed by the ribs 5261, 641, the front wall 526 of the upper tank unit 52, and the back surface 64 of the cover unit 6. At this time, the second suction port 62 of the cover unit 6 is closed by the lid member 621 as shown in FIG. 2 .

(a) Inflow direction changer The inflow direction changer 53 is provided in the tank 5 at the tank inlet hole 525 .
The liquid sucked from the first suction port 61 flows into the tank chamber 50 from the tank inlet hole 525 via the first suction path F1. However, if the liquid that has flowed in is sucked into the electric blower unit 71, there is a risk that the electric blower unit 71 will malfunction. Therefore, the inflow direction change unit 53 has the function of reducing the inflow direction and force of the liquid from the tank inlet hole 525 into the tank chamber 50.
FIG. 6B is an assembly diagram of the inflow direction changer 53.
As shown in the same figure, the inflow direction change section 53 comprises a blowing member 531 that extends into the tank section 5 and has a blowing outlet 5312a, and a cap member 532 that is attached so as to cover at least the blowing outlet 5312a of the blowing member 531.

The blow-out member 531 has a cylindrical shape with a bottom as a whole, and includes, from the front side in the axial direction of the cylindrical member, a threaded portion 5311 having a screw groove 5311a formed on the inner peripheral surface, a cylindrical portion 5314, and a bottom portion 5313, in this order, and a blow-out outlet 5312a is provided in the cylindrical portion 5314. The blow-out outlets 5312a are formed in a pair in a positional relationship such that they face the bottom portion 5313 side.
A cylindrical cap member 532 with a bottom is attached to the bottom 5313 of the blowing member 531 by means of a fastener 5322 such as a screw.
The inner diameter of the cap member 532 is set larger than the outer diameter of at least the tubular portion 5314 of the blowing member 531 closer to the bottom 5313 than the threaded portion 5311, and the gap 533 between the inner surface of the cap member 532 and the outer surface of the blowing member 531 opens toward the tank inlet hole 525.
The inflow direction changer 53 is attached to the tank inlet hole 525 via an attachment member 524. As shown in Figure 8(b) , the attachment member 524 is composed of a cylindrical portion 5241 having a screw thread 5241a formed on its outer circumferential surface, and a flange portion 5243.

A recessed portion 5221 is formed in the front wall portion 526 of the upper tank portion 52, between the periphery of the tank inlet hole 525 and the rib 523, and is recessed (recessed) by the thickness of the flange portion 5243 of the inflow direction changer 53. By inserting the cylindrical portion 5241 of the mounting member 524 into the tank inlet hole 525 and fitting the flange portion 5243 into the recessed portion 5221, the first suction path F1 is prevented from being narrowed by the thickness of the flange portion 5243, and a decrease in suction efficiency is prevented. The front surface of the flange portion 5243 and the front surface of the area of the front wall portion 526 surrounded by the rib 523 are configured to be flush with each other or the flange portion 5243 is lower.
The thread groove 5311a of the screw portion 5311 of the inflow direction change portion 53 is screwed into and tightened onto the screw thread 5241a of the cylindrical portion 5241 of the mounting member 524, which penetrates the tank inlet hole 525 of the cylindrical portion 5241 and protrudes toward the tank chamber 50, thereby fixing the inflow direction change portion 53 to the upper tank portion 52.
Then, by attaching the cover portion 6 to the front wall portion 526 of the upper tank portion 52 as described above, the first suction path F1 is formed.

The liquid sucked from the first suction port 61 flows through the first suction path F1 into the inflow direction changer 53 attached to the tank inlet hole 525.
The liquid that flows into the inflow direction change section 53 first collides with the bottom 5313 of the blowing member 531, changes direction, and flows out from the blowing outlets 5312a, 5312a, then collides with the inner surface of the cap member 532, changes direction (orientation) toward the tank inlet hole 525, flows out from the gap 533, and flows out into the tank chamber 50.
In this way, the liquid that has passed through inflow direction changing section 53 has its flow direction gradually changed, the force of the flow reduced, and finally flows out in a direction away from opening 571a of valve housing member 57, thereby preventing the liquid that has flowed out into tank chamber 50 from being sucked into electric blower 71. Furthermore, because the direction of the sucked fluid is changed and the force of the fluid is also reduced, it is possible to make it difficult for the fluid to enter the electric blower 71 side.
In addition, the virtual blowing line in the blowing direction in which liquid is blown out from the blowing outlets 5312a, 5312a and the virtual suction line in the suction direction in which air is sucked in from the opening 571a of the valve accommodating member 57 are twisted, in this case vertical, which prevents the liquid blown out from the blowing outlets 5312a, 5312a from being sucked in toward the electric blower unit 71.

(c) Second Suction Path The second suction path is a path that continues from the second suction port 62 to the tank chamber 50 (hereinafter referred to as the "second suction path F2").
As shown in Figure 7, the second suction port 62 of the cover part 6 is located in a position concentric with the tank inlet hole 525 of the upper tank part 52 (in Figure 7, the mounting member 524 is inserted into the tank inlet hole 525) when the cover part 6 is attached to the upper tank part 52.
When sucking liquid through this second suction port 62, as shown in Figure 9 (b), the cover member 621 of the second suction port 62 is opened to open the second suction port 62, and the hose portion 31 of the hand tool 3 (see Figures 1 and 17 (b)) is inserted into the second suction port 62 via the connection portion 312 and connected to the inflow direction change portion 53.
As shown in Fig. 17(b), the connecting part 312 has an insertion part 3121 that is inserted into the second suction port 62. A pair of protruding parts 3121a are erected on the circumferential surface of the insertion part 3121 at positions facing each other across the cylindrical axis. Note that in Fig. 9(b), the protruding parts 3121a, which would not actually be visible, are shown as circles for convenience.

As shown in Figure 9, a pair of L-shaped grooves 5242 are provided at opposing positions on the inner circumferential surface of the cylindrical portion 5241 of the mounting member 524 attached to the tank inlet hole 525 (see Figure 8(a)). When connecting the hose portion 31, the insertion portion 3121 of the connection portion 312 is pushed into the vertical groove (the groove portion parallel to the cylindrical axis) of the L-shaped groove 5242 and then rotated clockwise until the convex portion 3121a is positioned at the end of the horizontal groove (the groove portion in the circumferential direction) of the L-shaped groove 5242, thereby providing a mechanism (twist lock mechanism) that locks the hose portion 31 to prevent it from easily slipping out of the second suction port 62. However, the locking mechanism is not limited to the twist lock mechanism described above.

9A and 9B are diagrams showing a first state in which the first suction path F1 is formed and a second state in which the second suction path F2 is formed, respectively.
In the first state of Figure 9 (a), the second suction port 62 is blocked by the cover member 621, and the liquid sucked from the first suction port 61 reaches the tank chamber 50 via the inflow direction change section 53 through the first suction path F1 formed between the back surface of the cover section 6 and the front wall section 526 of the tank section 5.
In the second state of Figure 9 (b), the insertion portion 3121 of the connection portion 312 of the hand tool 3 is inserted into the mounting member 524 of the inflow direction change portion 53, and the path of the first suction path F1 leading to the inflow direction change portion 53 is blocked, so that suction is not possible from the first suction port 61, and liquid is only sucked from the suction port 331 of the hand tool 3 via the second suction path F2.

The hand tool 3 is sufficiently lightweight compared to the main body 1, which is equipped with the suction device 7 and battery 8, making it easy to clean surfaces of various inclinations. Furthermore, the hand tool 3 has a path switching structure that automatically switches from the first suction path F1 to the second suction path F2 simply by connecting the connection part 312 of the hand tool 3 to the main body 1, making it extremely convenient.

(2) Suction Device Unit Fig. 10 is a perspective view of the disassembled suction device unit 4 as seen from the upper right side, and Fig. 11 is a perspective view of the disassembled suction device unit 4 as seen from the lower left side. As shown in Figs. 10 and 11 and the above-mentioned Fig. 5, the suction device unit 4 includes the suction device 7, the battery 8, and the control unit 9 in a case member 400.
The battery 8 is disposed below the suction device 7, and the circuit board of the control unit 9 is disposed vertically, so that there is little wasted space in the suction device section 4, and the entire device can be made compact.
The case member 400 is composed of a right case member 401 that constitutes the right half in the left-right direction, and a left case member 402 that constitutes the left half.
Each part of the suction device section 4 will be described in detail below.

(2-1) Suction Device As shown in Figures 10 and 11, the suction device 7 includes at least an electric blower 71, an exhaust flow path 72, and a valve mechanism 73. The electric blower 71 is configured by accommodating an electric blower 77 (see Figure 15) made up of a fan-equipped motor inside a cylindrical casing 74. When the electric blower 77 is driven, the valve mechanism 73 opens and sucks in air from the tank chamber 50. The sucked air is exhausted to the outside of the device via the exhaust flow path 72.

(a) Valve mechanism section Figure 12(a) is a perspective view of the front of the suction device section 4 seen from the lower right side, and Figure 12(b) is a view showing the valve mechanism section 73 in vertical cross section with the case member 401 on the right side of Figure 12(a) removed.
As shown in Figure 12, the valve mechanism 73 includes three arm portions 733 formed on the front side of a cylindrical member 731, a cylindrical portion 732 formed at the connecting portion of the arm portions 733, a pin member 734 supported on the cylindrical portion 732 so as to be able to slide freely in the front-to-rear direction, a disk-shaped valve member 735 provided at the rear of the pin member 734, and a spring body 736 that biases the pin member 734 forward.
The peripheral edge of the valve member 735 contacts the inner peripheral edge of the opening (suction port) 7311 provided at the end of the tubular member 731, closing the valve mechanism 73 and preventing liquid from entering the electric blower 71.

The electric blower 71 side of the cylindrical member 731 is connected to the opening 741 of the casing 74 of the electric blower 71, and when the electric blower 71 is driven, the space inside the cylindrical member 731 becomes negative pressure, and the valve member 735 moves rearward against the biasing force of the spring body 736, so that the valve of the valve mechanism 73 opens and air can be sucked in from the tank chamber 50.
A packing 76 is disposed on the outer periphery of the cylindrical member 731 to enhance adhesion with the tank portion 5 .

(a) Exhaust Flow Path Section The exhaust flow path section 72 forms a flow path for discharging the air sucked by the electric blower section 71 to the outside of the device.
Fig. 13(a) is a diagram showing the electric blower 71 and the exhaust flow path 72 when the right case member 401 is removed from the suction device 4. Fig. 13(b) is a diagram showing a vertical cross section of the exhaust flow path 72 of the main body 1 as viewed from the rear.
As shown in the figure, exhaust flow path 72 is connected to the rear of casing 74 of electric blower 71 and includes exhaust guide 720 for guiding air exhausted from electric blower 71, and first guide 721 and second guide 722 connected to opening 720a of exhaust guide 720 for guiding air exhausted from exhaust guide 720 to below battery 8. Here, exhaust guide 720 and first guide 721 are formed as an integrally molded product.

The cross-sectional shape of each of the first guide portion 721 and the second guide portion 722 is approximately U-shaped with an open right side, and after the case is assembled, the U-shaped open portion abuts against the inner surface of the right case member 401 via rib 401a (see the back surface of case member 401 in Figure 11), resulting in a highly airtight discharge flow path.
Furthermore, the flat portion 722a of the second guide portion 722 extends so as to wrap around below the battery 8 and cover the upper part of the exhaust port forming cover 75 (FIG. 13(b)).
As a result, the first guide portion 721, the second guide portion 722 and the inner surface of the right case member 401 are integrated to form an exhaust path F3 that runs from the electric blower unit 71 to the exhaust port forming cover 75, preventing leakage to other parts of the device, thereby preventing the battery 8 and control unit 9 from being exposed to exhaust air containing dust and moisture.
Furthermore, with this configuration, the inner surface of the right case member 401 can be used as part of the discharge path F3, thereby reducing the number of parts.
The exhaust port forming cover 75 can be separated from the suction device section 4 by pulling it out in the direction of arrow B in FIG. 13(b) (to the right in FIG. 1).

Figure 14(a) is a perspective view seen from the upper left rear when the exhaust port forming cover 75 is pulled out in direction B and separated from the suction device section 4, and the same figure (b) is a perspective view seen from the lower left rear.
The intersection of the bottom surface and the side surface of the left case member 402 has an R, and the left surface portion 753 of the exhaust port forming cover 75 is also curved in the same manner as the R. A plurality of slit holes 754 are formed as exhaust ports in the left surface portion 753, extending from the bottom portion 755 to the left surface portion 753.
In this way, the discharge path is made up of the first guide portion 721 , the second guide portion 722 , the right case member 401 , and the exhaust port forming cover 75 .
Since the slit hole 754 is formed from the lower end (bottom 755) of the left surface portion 753 to the upper portion, even if the cleaning device X is placed on a carpet, for example, and the opening close to the bottom 755 is blocked, the opening on the upper side of the slit hole 754 is not blocked, so that exhaust can be performed.

A rib 752 is formed on the side wall 751 of the exhaust port forming cover 75, and this rib 752 is guided by the guide groove 413 of the left case member 402 when the exhaust port forming cover 75 is inserted or removed. By making the member with the exhaust port (slit hole 754) removable from the case member 402 in this way, maintenance such as dust removal from this area is made easier.

(C) Battery Section The battery 8 is, for example, a rechargeable lithium battery housed in a case 82. As shown in FIG. 11 , a terminal connection section 81 is provided adjacent to the battery 8 for connecting to a power supply terminal 116 (see FIG. 18 ) of an external charging adapter to receive power. The terminal connection section 81 is disposed in a position close to the rear wall of the right case member 401, and slits 811 and 812 are formed in the right case member 401 at positions corresponding to the terminal connection section 81, through which a pair of power supply terminals 116 are inserted from the outside. A rib 813 is provided to surround the slits 811 and 812. Since ribs 813 are erected so as to surround the periphery of the slit holes 811 and 812, even if the outside of the device main body 01 gets wet and water droplets drip down the surfaces of the case members 401 and 402 of the device main body 01 when placed on a horizontal surface as shown in Figure 3, the water is blocked by the ribs 813, making it difficult for leakage current to occur at the terminal connection part 81.

(D) Control System FIG. 15A is a block diagram showing an outline of the control system in the cleaning device X according to this embodiment.
The control unit 9 drives the electric blower 77 in response to operation of the operation unit 24, and also executes control to stop the electric blower 71 based on detection signals from the tilt sensor 102 and the full water sensor 101. It also controls the display unit 25 to display the current device status, etc.
The control unit 9 is configured by mounting at least a CPU, a nonvolatile memory such as a ROM, and a volatile memory such as a RAM on a circuit board.

The non-volatile memory stores the control program for the cleaning device X and various control thresholds, and the volatile memory serves as a work area for the program.
As shown in FIG. 5, a full water sensor 101 is disposed in the empty space in front of the battery 8 in the suction device section 4, close to the tank section 5, for detecting that the liquid level collected in the tank section 5 has reached the full water level L1.
The full water level L1 is set below the upper edge 515 of the lower tank portion 51. This makes it possible to prevent the liquid from spilling out when the tank portion 5 is pulled out from the main body 1, separating the lower tank portion 51 and the upper tank portion 52 and disposing of the liquid.
5, a tilt sensor 102 is mounted on the circuit board 91 of the control unit 9 to detect the tilt of the cleaning device X. A three-dimensional acceleration sensor, for example, is used as the tilt sensor 102, which can detect the forward tilt θb, backward tilt θc, and left-right tilt θa of the main body 1, as shown in FIG.

A conventional method for detecting the liquid level in a tank without contact has been known, in which a magnetic float is attached to the end of an arm that is supported so that it can swing inside the tank, and the magnet moves up and down together with the float as the liquid level rises and falls, so a magnetic sensor is placed outside the tank and the liquid level inside the tank is detected by the magnitude of the magnetic force detected by the magnetic sensor.However, this method requires a large-scale liquid level detection structure, making it difficult to make the device compact, and has the disadvantage of being costly due to the large number of parts.Furthermore, when a float is used to detect the liquid level in the tank, there is a risk that it will not be able to detect the level if the float gets caught.
Therefore, in this embodiment, a capacitance sensor is used as the full-water sensor 101 in the tank 5. Such a capacitance sensor may have, for example, a detection electrode that is disposed outside the tank 5 and whose capacitance changes in response to changes in the liquid level in the tank 5, and a reference electrode that is disposed around the detection electrode and whose capacitance does not change in response to changes in the liquid level in the tank 5, and the liquid level in the tank 5 is determined by comparing the outputs of the detection electrode and the reference electrode. However, the capacitance sensor is not limited to this configuration, and any configuration may be used as long as it can detect, from outside the tank 5, the capacitance that changes in response to the liquid level in the tank 5.
Such a capacitance sensor does not require a float to be provided inside the tank, which reduces the number of parts, and also prevents the liquid level from being unable to be detected due to a problem with the float.

16 is a flowchart showing the details of the drive stop control of the electric blower 77 executed by the control unit 9, which is executed while the electric blower 77 is being driven.
First, when the power is turned on by the operation unit 24, the control unit 9 drives the electric blower 77 and starts the program.
It is determined whether or not the power has been turned off by the operation unit 24 (step S11). If the power has been turned off (step S11: YES), the process proceeds to step S14, where the driving of the electric blower 77 is stopped.
If the power has not been turned off in step S11 (step S11: NO), the process proceeds to step S12, where it is determined based on the output signal of the full water sensor 101 whether the tank unit 5 is full of water.
If it is determined that the tank is full, the driving of the electric blower 77 is stopped (step S12: YES, step S14), and the process ends.

If it is determined that the tank section 5 is not full (step S12: NO), the process proceeds to step S13, where it is determined whether any of the inclinations θa, θb, and θc (see Figure 15(b)) of the main body section 1 detected by the inclination sensor 102 is greater than or equal to the predetermined threshold values θ1, θ2, and θ3, respectively.
Here, the threshold value θ3 of the rearward tilt θc is smaller than the threshold value θ2 of the forward tilt θb (θ2 > θ3). This is because if the tank 5 is tilted rearward, the liquid level in the tank 5 will likely reach the opening 575 of the valve housing member 57 and be sucked into the electric blower 77. The threshold value θ1 of the left-right tilt θa is not particularly limited, but it is desirable that θ2 > θ1 > θ3.
If any one of the inclinations θa, θb, and θc is equal to or greater than the respective threshold values θ1, θ2, and θ3 (step S13: YES), the driving of the electric blower 77 is stopped (step S14).
If all of the inclinations θa, θb, and θc are smaller than the respective threshold values θ1, θ2, and θ3 (step S13: NO), the process returns to step S11 and the above processing is repeated.

4. Position of the Center of Gravity of the Main Body 1 When gripping and lifting the cleaning device X by the handle 2, if the center of gravity of the cleaning device X is shifted forward or backward from the grip area of the handle 2 (horizontal portion 26 of the handle 2) when viewed from above, not only a downward load but also a moment acts on the gripping fingers, making the device feel heavier than it actually is. Therefore, it is desirable to arrange each component of the cleaning device X so that the center of gravity is located directly below the grip area of the handle 2.
Therefore, it is desirable that the electric blower 77, which is the heaviest, be disposed immediately below the grip area of the handle portion 2. Furthermore, it is desirable that the battery 8 also be disposed immediately below the above-mentioned area.

Second Embodiment
FIG. 17A is a perspective view showing the appearance of a cleaning device set Y according to a second embodiment of the present invention.
As shown in the figure, the cleaning device set Y includes a cleaning device X, a charging stand 110 that stores the device main body 01 of the cleaning device X in an upright position and also serves as a charging stand for the battery 8, and a storage box 120 for storing the hand tool 3 and the liquid spray 10.

1. Charging Stand The charging stand 110 is designed to accommodate the device main body 01 of the cleaning device X from which the hand tool 3 has been removed, in a vertical position with the first suction port 61 facing upward.
FIG. 18A is a perspective view showing the internal structure of the charging stand 110, taken along the center in the left-right direction, as viewed from above.
As shown in FIG. 18, the charging stand 110 has a shape like a cylinder cut along an imaginary plane intersecting the cylinder axis, and the device main body 01 can be inserted from the opening at the top.
The charging stand 110 has an outer peripheral wall portion 110 a , an inner peripheral wall portion 110 b , an upper wall portion 110 c , a bottom wall portion 110 d , and a base portion 118 .
The upper wall portion 110c connects the upper ends of the outer peripheral wall portion 110a and the inner peripheral wall portion 110b. The bottom wall portion 11d is provided on the lower side of the outer peripheral wall portion 111a.

A base 118 is provided on the upper side of the bottom wall 110d of the charging stand 110, on which the device main body 01 is placed in an upright position with the first suction port 61 facing upward. A pair of plate-shaped power terminals 116 are provided on the base 118 at positions corresponding to the terminal connection portions 81 of the device main body 01.
A power socket 115 is provided in approximately the center of the bottom wall 110d, and by inserting a power plug 114, which is connected via a power cord 113 to a power adapter (not shown) that is connected to a commercial power outlet, into this power socket 115, a predetermined DC voltage required to charge the battery 8 is applied to a pair of power terminals 116.

When the device main body 01 is stored in the charging stand 110, the power terminal 116 passes through slit holes 811, 812 (FIG. 4(a)) on the rear surface of the device main body 01 and comes into contact with the internal terminal connection part 81 (FIG. 11), supplying a DC voltage to the battery 8, thereby charging the battery 8.
To prevent water droplets from accumulating on the base 118 or bottom wall 110d of the charging stand 110, a plurality of drain holes 111, 112 are drilled in the base 118 and bottom wall 110d (FIGS. 18(a) and 18(b)). Because the power terminal 116 is located above the drain holes 111, 112, even if water leaks from the cleaning device X during charging, the power terminal 116 is unlikely to get wet, ensuring safety.
In addition, when the device main body 01 is housed in the charging stand 110 and the liquid in the tank section 5 has reached the full level L1, the liquid level in the tank section 5 is configured to be located below the opening 571a of the valve accommodating member 57.
With this configuration, the battery 8 can be charged easily and safely simply by standing the device body 01 of the cleaning device X upright and storing it on the charging stand 110, which is very convenient.

2. Storage Box The storage box 120 stores the hand tool 3 and the liquid sprayer 10 (FIG. 17(a)). The hand tool 3 is stored separately from the cleaning device X because the first suction port 61 of the main body 1 is usually frequently used to clean the floor surface.
In FIG. 17, the charging base 110 and the storage box 120 are connected to each other, but the storage box 120 can also be separated from the charging base 110.

As shown in FIG. 19, the storage box 120 is box-shaped and open at the top.
The bottom wall 122 has a fitting portion 125 that fits onto the lower end of the grip 32 of the hand tool 3. This allows the head 33 and the grip 32 to be stably erected.
As shown in FIG. 19A, the storage box 120 has a sub-base 121 protruding laterally from the bottom side of one side wall portion 123 via engaging arms 1211 and 1212 .
On the other hand, as shown in FIG. 18(b), slit grooves 1171 and 1172 are formed in the lower part of the outer peripheral wall 110a of the charging stand 110 at positions corresponding to the engaging arms 1211 and 1212.
The charging stand 110 and the storage box 120 are joined together by fitting the engaging arms 1211 and 1212 into the slit grooves 1171 and 1172. At this time, the sub-base 121 of the storage box 120 is sandwiched between the bottom wall 110d of the charging stand 110 and the placement surface, thereby increasing stability.
The liquid sprayer 10 contains a cleaning liquid (water or a cleaning liquid appropriate for the type of dirt). During cleaning, the neck portion of the liquid sprayer 10 is gripped and the lever 11 is pulled to eject the liquid in a spray form from the nozzle 12 toward the surface to be cleaned. The surface is then scrubbed with the brush portion 511 of the cleaning device X (when suction is performed through the first suction port 61) or the brush portion 332 (when suction is performed through the second suction port 62 using the hand tool 3) to separate the dirt and debris from the surface, which is then sucked up along with the liquid, and the surface is cleaned.

Although the embodiment has been described above, the present invention is not limited to this embodiment, and the following modifications may be made, for example. Furthermore, the embodiment and the modifications may be combined, or the modifications may be combined with each other.
Furthermore, examples not described in the embodiments or modifications, and design changes that do not deviate from the gist of the invention are also included in the inventions related to the embodiments.

<Modification>
(1) Electric Blower The rotation shaft of the electric blower 77 extends in the front-rear direction, but may also extend in the left-right direction, the up-down direction, or a direction intersecting these directions.
When the position of the electric blower 71 with respect to the other parts and the position of the center of gravity are not important, the electric blower 71 may be located at one end in the left-right direction other than the upper side.
Although the valve mechanism 73 is separate from the casing 74 of the electric blower 71, it may be formed integrally with the casing 74.

(2) Power Supply Unit Although a rechargeable battery 8 is provided as the power supply unit, an electric cord may be provided without the battery 8, or the battery 8 and the electric cord may coexist and the electric cord may be detachable, so that when the electric cord is attached, the electric blower unit 71 receives power from the power cord to drive the blower unit 71 and charge the battery 8, or it is also possible to use a configuration in which the power source is switched to the battery 8 for driving the blower unit 71 when the power cord is detached. Furthermore, ordinary dry cell batteries may also be used.

(3) Battery The battery 8 is disposed below the electric blower 71, but if the position of the center of gravity is not an issue, it may be disposed in a position other than below the electric blower 71. The long battery 8 is disposed such that its length is aligned with the front-to-rear direction, but it may also be disposed along the left-to-right or up-to-down direction. By disposing the battery in the up-to-down direction, the front-to-back dimension of the suction device unit 4 can be reduced, and by disposing the battery adjacent to the rear of the electric blower 71, the positions of the centers of gravity of the two can be brought closer, making it easier to design for a sense of weight.

(4) Discharge Flow Path The discharge flow path is formed from the rear of the electric blower 71 toward one side in the left-right direction below the battery 8, but a discharge port (slit hole 754) may be provided on the rear side below the battery 8. Furthermore, if the length of the discharge flow path is not an issue, the air may be discharged from another location downstream of the electric blower 71.
The exhaust port is configured with a plurality of slit holes 754, but may be configured with a single opening. Also, the exhaust port is provided in the exhaust port forming cover 75 that is detachable from the case member 402, but if cleaning of the exhaust port is not an issue, the exhaust port may be formed in the case member.

(5) Handle section The handle section 2, together with the main body section 1, forms a gripping space, and when viewed from the left and right, has a trapezoidal shape that is long in the front-to-back direction and slopes at the front, but the front may or may not be sloped.
If attention is not focused on the inclined portion 27, the handle portion 2 may have a shape that extends upward, or may be inclined only on the rear side, or may be inclined both front and rear. The inclination angle of the inclined portion 27 is the same as the inclination angle of the front wall (cover portion 6) of the main body portion 1, and is within the range of 0.8 to 1.2, but may be an angle different from the inclination angle of the front wall.

(6) Drive/Stop Control In the first embodiment, as described in the flowchart of FIG. 16, the drive/stop control is performed by determining whether any of the inclinations θa, θb, and θc (see FIG. 15(b)) of the main body 1 detected by the inclination sensor 102 is equal to or greater than a different preset threshold value θ1, θ2, or θ3, respectively. However, the threshold value may be one type (for example, the smallest θ3 for safety reasons), and the detected inclination may be only one direction (for example, a backward inclination θc).
Furthermore, two large and small thresholds θ11 and θ12 (θ11<θ12) may be set for the tilt θ in one specific direction, and the time until the driving of the electric blower 77 is stopped may be differentiated depending on the magnitude relationship between the detected tilt θ of the main body 1 and θ11 or θ12. The circuit board of the control unit 9 includes a timer.

Fig. 20 is a flowchart showing the contents of the drive stop control according to this modification. Note that this flowchart differs from the flowchart of Fig. 16 in that step S13 is replaced by steps S21 to S25, and the following explanation will focus on these differences.
If it is determined in step S12 that the tank 5 is not full (step S12: NO), it is next determined whether the tilt θ detected by the tilt sensor 102 is equal to or greater than θ11 (e.g., 15°) (step S21). If it is determined that θ≧θ11 (step S21: YES), the timer starts counting (step S22), and it is determined whether the tilt θ≧θ12 (step S23). Here, θ12 is, for example, 30°.
If θ≧θ12 (step S23: YES), and if the tilted state continues for a time T1 (for example, 0.5 seconds) (step S24: YES), the driving of the electric blower 77 is stopped (step S14).

If it is determined in step S23 that the inclination θ is not greater than or equal to θ12 (step S23: NO), the inclination θ is greater than or equal to the threshold value θ11 and less than the threshold value θ12, and therefore the operation of the electric blower 77 is stopped (step S14) only if the inclined state continues for a time T2 (e.g., 2 seconds) (step S25: YES).
In this modified example, if the determinations in steps S24 and S25 are "NO," the process returns to step S11 and the above processing is repeated.
In this way, when the slope θ is not too large and is in the range of greater than or equal to threshold value θ11 but less than threshold value θ12, there is little risk of liquid being immediately sucked into electric blower 77, so a leeway of time T2 is provided before electric blower 77 is stopped; when the slope θ is larger and equal to or greater than threshold value θ12, electric blower 77 is stopped after T1, which is shorter than T2, has elapsed, thereby achieving a balance between user convenience and device safety.
Furthermore, convenience can be improved by eliminating the need for stopping when the main body 1 is tilted for just a moment during use.

(7) Tank Unit Although the tank unit 5 is detachable from the main body unit 1, it may be provided independently of the main body unit 1. For example, the tank unit 5 and the suction device unit 4 may be connected by a detachable or non-detachable hose. In this case, two suction paths can be selected.
The tank 5 may be fixed to the main body 1. When the tank 5 is fixed to the main body 1, it is desirable to provide the tank 5 with a drain plug.

The tank 5 includes an inflow direction changer 53 including a blow-out member 531 and a cap member 532. However, any inflow direction changer may be used as long as it can change the inflow direction of the liquid. For example, as shown in FIG. 21 , an inflow direction changer 53A without a cap member 532 may be used. The inflow direction changer 53A here includes a threaded portion 5311, a tubular portion 5314, and a bottom 5313A that slopes downward. A communication hole 5319 is formed in the bottom 5313A, which guides the inflowing liquid toward the lower tank 51. The pair of outlets 5312a of the tubular portion 5314 are laterally opposed, and the circumferential wall of the tubular portion 5314 exists above the valve housing member 57A. This prevents the inflowing liquid from splashing toward the valve housing member 57A and allows it to flow toward the lower tank 51.
Furthermore, since the inflow direction change portion 53 extends downward from the opening 571Aa of the valve accommodating member 57A in a rearward downward manner, it is possible to further restrict liquid from flowing into the tank portion 5A and entering the valve accommodating member 57A.

In the embodiment, the valve housing member 57 includes the filter 574 in a position close to the bottom portion 572 of the bottomed tubular portion 571. However, as shown in FIG. 21 , the valve housing member 57A may include the filter 574 in a longitudinally intermediate position of the bottomed tubular portion 571A. The bottomed tubular portion 571A has a shape that is cut out at the upper side of the region from the intermediate portion where the filter 574 is located to the bottom portion 572A, and an opening 571Aa is formed in the cut-out portion. The lower portion 571Ab of the opening 571Aa in the bottomed tubular portion 571A serves as a shield that blocks liquid or air flowing directly from the outlet 5312a of the inflow direction changer 53A toward the opening 571Aa.

The packing 513 placed between the lower tank portion 51 and the upper tank portion 52 has a rectangular ring shape (see Figure 7), but as shown in Figure 21, it may also be packing 513A with a covering portion 519 that covers part of the lower tank portion 51. This prevents liquid from splashing up from the rear of the lower tank portion 51 and being sucked into the electric blower, even when the cleaning device X is swayed back and forth.

The tank 5 does not include a partition wall, but may include a partition wall 529 as shown in Fig. 21. The partition wall 529 is provided on both the left and right sides of the inflow direction change section 53A inside the upper tank 52. The partition wall 529 is formed of a plate-like portion that is perpendicular to the front-rear direction.
When viewed from the left and right, the partition wall 529 is located between the center of the outlet 5312a of the inflow direction changer 53A and the center of the opening 571Aa of the valve housing member 57A. This prevents liquid splashed from the outlet 5312a from heading toward the opening 571Aa. From this perspective, the partition wall 529 also serves as a shield that blocks liquid or air from heading directly from the outlet 5312a of the inflow direction changer 53A toward the opening 571Aa.

<<Invention>>
As examples of embodiments and modifications, at least the following inventions are included.

<Invention 1>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 discloses an easily portable handheld suction cleaner as a cleaning device that sucks up liquid.
However, in the above-mentioned cleaning device, the suction port is located on the bottom, making it easy to work on floors, but when cleaning surfaces in various directions, the entire main body must be rotated, and since the main body is somewhat heavy, it cannot be said to be easy to use (for convenience, this is referred to as the "first problem").
An object of the present invention is to provide a cleaning device that is easy to use on various cleaning surfaces.
2. Invention 1
The cleaning device according to the first aspect of the present invention is
A cleaning device capable of sucking air and liquid,
a main body;
an electric blower housed in the main body and generating suction force;
a first suction port and a second suction port provided in the main body portion,
Suction is possible through one of the first suction port and the second suction port.
As a result, the cleaning device has a second suction port in addition to the first suction port, which improves workability when cleaning various cleaning surfaces.

<Invention 2>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, in the suction cleaner described above, the carry handle 14 is not parallel to the top surface of the unit-type main body, which results in a lack of a sense of unity as a whole and a lack of compactness (for convenience, this will be referred to as the "second problem").
The object of the present invention 2 is to realize a cleaning device that has a sense of unity as a whole and is highly compact.
2. Invention 2
The cleaning device according to the second aspect of the present invention is
A cleaning device capable of sucking air and liquid,
a main body having an electric blower that generates suction force;
a handle portion provided above the main body portion,
The front, top and rear surfaces of the handle are parallel to the front, top and rear surfaces of the main body, respectively.
This not only gives the device a more unified appearance, but also makes it easier to operate by providing the first suction port on the extension of the front of the handle, allowing the user to easily grasp the position of the first suction port when gripping the handle to use the cleaning device.

<Invention 3>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, the above-mentioned suction cleaner does not take into consideration the center of gravity of the main body, and the suction source 18, which is the heaviest part, is located behind the carry handle 14, resulting in an overall poor balance and making the user holding the carry handle 14 feel heavy (for convenience, this will be referred to as the "third problem").
The third aspect of the present invention aims to realize a cleaning device that is easy to use by reducing the weight felt when gripping the handle.
2. Invention 3
A cleaning device according to a third aspect of the present invention is
A cleaning device capable of sucking air and liquid,
a main body having an electric blower that generates suction force;
a handle portion provided above the main body portion,
The electric blower is disposed with its center of gravity located directly below the handle portion.
As a result, the center of gravity of the main body is located directly below the handle, which improves balance when gripping the handle, making it less likely for the user to feel the weight.

<Invention 4>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction cleaner in which a suction source 18 is provided on the rear side of a housing 12, a recovery tank 20 is provided in the center, and a suction nozzle 16 is provided on the front side.
However, in the above-described structure, the recovery tank 20 and the suction nozzle are separated from each other, which causes a problem of poor suction efficiency (for convenience, this will be referred to as the "fourth problem").
A cleaning device according to a fourth aspect of the present invention aims to realize a cleaning device that can improve suction efficiency.
2. Invention 4
A cleaning device according to a fourth aspect of the present invention is
A cleaning device capable of sucking air and liquid,
a suction device unit having an electric blower that generates suction force;
a tank portion for storing the sucked liquid;
a cover portion that covers the front side of the tank portion and has a first suction port and a second suction port;
The front surface of the tank portion constitutes a part of a first suction path that connects the first suction port and the tank portion, and a part of a second suction path that connects the second suction port and the tank portion.
This allows a portion of the suction path to be located in front of the tank portion, shortening the suction path and improving suction efficiency.

<Invention 5>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, in the above-described suction cleaner, the carry handle 14 is not parallel to the top surface of the unit-type main body, and therefore compactness is poor (for convenience, this will be referred to as the "fifth problem").
The fifth aspect of the present invention aims to realize a cleaning device that is highly compact.
2. Invention 5
A cleaning device according to a fifth aspect of the present invention is
A cleaning device capable of sucking air and liquid,
an electric blower that generates suction force;
a battery disposed directly below the electric blower;
a tank portion disposed immediately in front of the electric blower and the battery and configured to discharge the sucked liquid;
a control unit that controls the driving of the electric blower;
Equipped with
The control unit is disposed immediately behind the electric blower and the battery.
This allows the device to be made compact.

<Invention 6>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction cleaner in which a suction source 18 is provided on the rear side of a housing 12, a recovery tank 20 is provided in the center, and a suction nozzle 16 is provided on the front side.
However, with the above-described structure, there is a problem in that cleaning the suction path is difficult (for convenience, this will be referred to as the "sixth problem").
A cleaning device according to a sixth aspect of the present invention aims to realize a cleaning device that can easily clean the suction path.
2. Invention 6
A first cleaning device according to a sixth aspect of the present invention comprises:
A cleaning device capable of sucking air and liquid,
a suction device unit having an electric blower that generates suction force;
a tank portion for storing the sucked liquid;
a cover portion that covers the front side of the tank portion and has a first suction port and a second suction port;
the tank portion and the cover portion constitute at least a part of a first suction path that connects the first suction port and the tank portion and a part of a second suction path that connects the second suction port and the tank portion,
The cover portion is detachable from the tank portion.
This makes it easy to clean the suction path.
A second cleaning device according to a sixth aspect of the present invention is the first cleaning device,
The tank section is detachable from the suction device section.
This makes it easier to clean the suction path.

<Invention 7>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction cleaner in which a suction source 18 and an exhaust port 22 are provided on the rear side of a housing 12.
However, with the above-described structure, the exhaust path from the suction source 18 to the exhaust port 22 becomes short, which causes a problem of loud noise (for convenience, this will be referred to as the "seventh problem").
A cleaning device according to a fifth aspect of the present invention aims to realize a cleaning device that can suppress noise.
2. Invention 7
A cleaning device according to a seventh aspect of the present invention is
A cleaning device capable of sucking air and liquid,
an electric blower that generates suction force;
a battery disposed below the electric blower and powering the electric blower;
an exhaust path for discharging exhaust from the electric blower to the outside of the device through an exhaust port;
Equipped with
The exhaust path passes below the battery and reaches the exhaust port.
This allows the exhaust path to be longer and noise to be reduced.

<Invention 8>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-65532 discloses a cleaning device that discharges liquid, which includes a device main body having a suction unit that generates suction force, a hand tool having a suction part for sucking air and liquid and a discharge part for discharging the liquid in the tank, and a wastewater tank that stores the sucked wastewater. The wastewater tank includes a tank main body having a suction port that sucks wastewater from the hand tool and a discharge port that discharges the sucked air, and a float that uses the wastewater in the tank main body to block the discharge port.
However, in the cleaning device described above, a float is used to detect the liquid level in the tank, and if the float gets caught, detection is not possible (for convenience, this is referred to as the "eighth problem").
An eighth aspect of the present invention aims to provide a cleaning device with improved detection accuracy (detection stability).
2. Invention 8
A cleaning device according to an eighth aspect of the present invention is
A cleaning device capable of sucking air and liquid,
an electric blower that generates suction force;
a tank portion for storing the liquid sucked from the suction port;
a capacitance sensor provided on a side of the tank portion and configured to detect the liquid level of the tank portion;
a control unit that controls the driving of the electric blower;
Equipped with
The control unit stops the electric blower when it determines that the tank unit is full of water based on the detection result of the capacitance sensor.
As a result, since a float is not used, the device will not get caught on dust or the like, and the detection accuracy (detection stability) can be improved.

<Invention 9>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, the above-described suction washer does not take into consideration the operation of the suction source 18 when the unit body is tilted (for convenience, this will be referred to as the "ninth problem").
An object of the present invention 9 is to provide a cleaning device that can prevent breakdowns due to tilting.
2. Invention 9
A cleaning device according to a ninth aspect of the present invention is
A cleaning device capable of sucking air and liquid,
a suction device unit that houses an electric blower that generates suction force;
a tank portion for storing the liquid sucked from the suction port;
an inclination sensor that detects the inclination of the suction device unit;
a control unit that controls the driving of the electric blower;
Equipped with
The control unit stops the electric blower when the tilt angle detected by the tilt sensor is equal to or greater than a predetermined threshold value.
This prevents the liquid in the tank from being sucked into the electric blower by stopping the electric blower when the suction attachment section is tilted to a predetermined angle or more, thereby preventing breakdown of the electric blower.

<Invention 10>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, the above-described suction cleaner does not take into consideration charging of the suction source 18 (for convenience, this is referred to as the "tenth problem").
An object of the present invention 10 is to provide a cleaning device set that can be safely charged.
2. Invention 10
A cleaning device set according to a tenth aspect of the present invention comprises:
A cleaning device set including a cleaning device capable of sucking air and liquid and a charging base,
The cleaning device is
an electric blower that generates suction force;
a battery that drives the electric blower;
Equipped with
The charging stand has a drain hole provided at the bottom and a charging contact point provided above the drain hole.
This makes it safer because the contacts are less likely to get wet even if water leaks from the cleaning device during charging.
<Invention 11>
1. Prior Art Japanese Patent Application Laid-Open No. 2021-87780 describes a handheld suction washer that is provided with a carry handle 14 and includes a modular main body that is further provided with a supply tank 26, a recovery tank 20, and a suction source 18, all of which are held in the modular main body.
However, the above-mentioned suction cleaner does not take into consideration the case for storing the liquid spray used during cleaning. For example, if the liquid spray or the like is stored in a separate case, it will be separated from the cleaning device, making it difficult to store and inconvenient (for convenience, this will be referred to as "Problem No. 11").
An object of the present invention 11 is to provide a highly convenient cleaning device set.
2. Invention 11
A cleaning device set according to a tenth aspect of the present invention comprises:
A cleaning device set including a cleaning device capable of sucking air and liquid, a charging stand, and a storage case,
The cleaning device is
an electric blower that generates suction force;
a battery that drives the electric blower;
Equipped with
The storage case has an engaging portion that protrudes laterally, and the engaging portion engages with an engaged portion formed on the charging base, thereby juxtaposing the storage case to the charging base.
This allows the storage case to be easily attached to the charging stand, and the integration improves convenience.

<Others>
The features specifying each invention are not limited by the features specifying other inventions. Furthermore, each invention may include the features specifying other inventions, or may include the configurations described in the embodiments. Furthermore, inventions 2 to 11 may include some or all of the features specifying the cleaning device of invention 1, nos. 1 to 24.

X Cleaning device 1 Main body 2 Handle 3 Hand tool 4 Suction device 5 Tank 6 Cover 7 Suction device 8 Battery 9 Control unit 31 Hose 61 First suction port 62 Second suction port 73 Valve mechanism 74 Electric blower 101 Full water sensor 102 Tilt sensor

Claims (8)

A cleaning device capable of sucking air and liquid,
a main body;
an electric blower housed in the main body and generating suction force;
a battery that drives the electric blower;
a control unit that controls the electric blower;
a first suction port and a second suction port provided in the main body;
a tank portion provided in the main body portion and configured to store the liquid sucked through the first suction port and the second suction port;
a first suction path provided in the main body portion and communicating the first suction port with the tank portion;
a second suction path provided in the main body portion and communicating between the second suction port and the tank portion;
Equipped with
In the main body, the battery is disposed below the electric blower, the tank is disposed in front of the electric blower and the battery, the first suction path and the second suction path are disposed in front of the tank, and the control unit is disposed immediately behind the electric blower and the battery,
The front surface of the main body is inclined,
A handle portion is provided above the main body portion,
a front surface of the handle portion is parallel to and flush with a front surface of the body portion ;
The first suction port is provided on the front end side of the main body and on the lower side of the main body .
Cleaning equipment. The electric blower is disposed with the center of gravity of the electric blower located directly below the handle portion.
The cleaning device of claim 1 . the main body portion has a cover portion,
the cover portion constitutes a part of the first suction path and the second suction path, and is detachable from the main body portion together with the tank portion.
The cleaning device of claim 1 . The tank portion is detachably attached to the main body portion in a horizontal direction.
The cleaning device of claim 1 . the tank portion has an opening on a rear surface thereof that is connected to the electric blower,
The periphery of the opening is sealed with a packing.
The cleaning device of claim 1 . The tank portion includes a first tank portion and a second tank portion that can be separated in the vertical direction,
The first tank portion and the second tank portion are engaged with each other at engagement portions provided at the front and rear portions of the tank portion, respectively.
The cleaning device of claim 1 . The tank portion has a full water position set in the lower tank portion of the first tank portion and the second tank portion.
7. The cleaning device of claim 6. the main body includes an exhaust path that discharges exhaust from the electric blower to the outside of the device through an exhaust port,
The exhaust path passes under the battery and reaches the exhaust port.
The cleaning device of claim 1 .