Cleaning device

Abstract

To provide a cleaning device with excellent workability with respect to various cleaning surfaces.SOLUTION: A cleaning device capable of sucking air and a liquid includes: a main body part 1; an electric blower 77 stored in the main body part 1 and to generate suction force; and a first suction port 61 and second suction port 62 arranged in the main body part 1. Suction is enabled from one of the first suction port 61 and the second suction port 62.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a cleaning device for cleaning a surface to be cleaned. [Background technology]

[0002] For example, Patent Document 1 discloses an easily portable handheld suction cleaner as a cleaning device that sucks up liquid. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-87780 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the cleaning device in Patent Document 1, the suction port is on the bottom, so it is easy to work on the floor, but when cleaning surfaces in various directions, the entire body needs to be rotated. In that case, the body is relatively heavy, so it cannot be said that it is easy to work with. An object of the present invention is to provide a cleaning device that is easy to use on a variety of cleaning surfaces. [Means for solving the problem]

[0005] 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 water drain hole provided at the bottom and a charging contact provided above the water 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 protruding laterally, and the engaging portion engages with an engaged portion formed on the charging base, thereby juxtaposing the storage case to the charging base. Effect of the Invention

[0006] According to the above configuration, the cleaning device has the second suction port in addition to the first suction port, so that workability can be improved when cleaning various cleaning surfaces. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view of a cleaning device according to an embodiment, seen from above on the front left side; [Diagram 2] 2 is a perspective view of the cleaning device with the hose portion removed, viewed from above on the front right side. FIG. [Diagram 3] FIG. 2 is a side view of the device body as viewed from the right side. [Figure 4] 1A is an oblique view of the tank section in the device body after it has been moved forward and separated from the suction device section, viewed from the upper right rear view; FIG. 1B is an oblique view of the tank section in the device body after it has been moved forward and separated from the suction device section, viewed from the lower right front view. [Diagram 5] 2 is a schematic cross-sectional view of the device body taken along the center in the left-right direction. FIG. [Figure 6] 6(a) is an enlarged cross-sectional view of only the tank portion in FIG. 5, and (b) is an exploded perspective view of an inflow direction change portion in the tank. [Figure 7] 1A and 1B are perspective views of the tank section in an exploded state, where FIG. 1A is a view from the upper right front side, and FIG. [Figure 8] 1A and 1B are perspective views of the upper tank section in a disassembled state, in which (a) is a view from the upper right front and (b) is a view from the lower left rear. [Figure 9]1A and 1B are enlarged cross-sectional views of the front part of the tank part, where (a) is a cross-sectional view showing a state in which the hose part of the hand tool part is not attached to the second suction port, and (b) is a cross-sectional view showing a state in which the hose part is connected to the second suction port. [Figure 10] 1 is a perspective view of the suction device unit in an exploded state as viewed from the upper right front side. FIG. [Figure 11] FIG. 2 is a perspective view of the suction device section in an exploded state, as viewed from the lower left rear. [Figure 12] 1A is a perspective view of the front part of the suction device unit as viewed from the front right bottom, and FIG. 1B is a partial cross-sectional view of a valve mechanism part of the suction device unit. [Figure 13] 1A 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 FIG. 1B is a cross-sectional view of the exhaust path of the main body section as viewed from the rear. [Figure 14] 13A and 13B are diagrams showing a state in which a cover member in which an exhaust slit is formed is removed from the bottom of a main body, where (a) is an upper left perspective view, and (b) is a lower left perspective view. [Figure 15] FIG. 4A is a block diagram showing a control system of the cleaning device, and FIG. 4B is a diagram showing the inclination of the cleaning device body detected by a tilt sensor in the control system. [Figure 16] 5 is a flowchart showing the contents of drive stop control of the electric blower executed by the control unit. [Figure 17] FIG. 2A is a perspective view showing a cleaning device set including a cleaning device, a charging stand, and a storage box, and FIG. 2B is a view showing the hand tool unit and the liquid spray removed from the storage box. [Figure 18] 1A and 1B are cross-sectional perspective views showing the inside of a charging stand, in which FIG. 1A is a perspective view of the cross-sectional view seen from above, and FIG. 1B is a perspective view of the cross-sectional view seen from the bottom. [Figure 19] 1A is a perspective view of the storage box as viewed from above, and FIG. 1B is a perspective view of the storage box attached to the charging stand as viewed from the bottom. [Figure 20]10 is a flowchart showing a modified example of drive stop control of the electric blower. [Figure 21] 13A is a schematic cross-sectional view of a modified tank portion cut in the center in the left-right direction, and FIG. 13B is a perspective view of the tank portion cut in the center in the left-right direction as viewed from the lower rear left.

[0008] <Summary> 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 configuration, the second suction port can be used separately from the first suction port, which can improve the workability when cleaning various cleaning surfaces.

[0009] A second cleaning device according to another aspect of the embodiment is the first cleaning device, comprising: a cover member that switches the second suction port between an open state and a closed state; a tank portion that is provided in 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 in the main body portion and that connects the first suction port and the tank portion; and a second suction path that is provided in the main body portion and that connects the second suction port and the tank portion, and is capable of taking 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. According to this, when the second suction port is closed, suction is performed from the first suction port, and when the hose part is connected to the second suction port, suction is performed from the second suction port without suction from the first suction port, which provides excellent operability. Also, the suction port can be switched with a simple operation.

[0010] 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. Also, this can be implemented with a simple structure.

[0011] A fourth cleaning device according to another embodiment is any of the first to third cleaning devices, further comprising 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 gives the device a more unified appearance, and by locating the first suction port on an 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, improving operability.

[0012] A fifth cleaning device according to another aspect of the embodiment is any of the first to fourth cleaning devices, further comprising an operation part disposed inside the handle part. This allows the user to easily operate the operating section while holding the handle with one hand, improving operability.

[0013] A sixth cleaning device according to another aspect of the embodiment is any of the first to fifth cleaning devices, in which the electric blower is disposed with the center of gravity of the electric blower located directly below the handle portion. As a result, by positioning the center of gravity of the main body directly below the handle, the weight balance is better than when the center of gravity is not located directly below the handle, and the user feels that the weight of the device is lighter.

[0014] 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 constitutes a part of the first suction path and a 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.

[0015] An eighth cleaning device according to another embodiment is a cleaning device according to the first to seventh embodiments, 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.

[0016] A ninth cleaning device according to another aspect of the embodiment is a cleaning device according to the first to eighth cleaning devices, wherein the main body portion has a cover portion, the cover portion forms part of the first suction path and the second suction path, and is detachable from the main body portion together with the tank portion. This makes it possible to easily clean the first suction path and the second suction path by removing the cover portion.

[0017] A tenth cleaning device according to another aspect of the embodiment is any of the first to ninth cleaning devices, wherein the tank portion is attached to and detached from 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 out when the tank is removed.

[0018] An eleventh cleaning device according to another aspect of the embodiment is any of the first to tenth cleaning devices, wherein the tank portion has an opening on a rear surface thereof that is connected to the electric blower, and the periphery of the opening is sealed by a packing. This makes it possible to improve the airtightness with a simple structure. Also, when the mounting direction of the tank portion and the crushing direction of the packing are the same, the airtightness can be improved.

[0019] A twelfth cleaning device according to another embodiment is a cleaning device according to any one of the first to eleventh cleaning devices, wherein the tank portion comprises a first tank portion and a second tank portion which 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 portions of the respective tank portions. This allows the tank to be divided into upper and lower halves to facilitate disposal of the aspirated liquid. The engagement 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 engagement part hidden by the cover part and the rear engagement part hidden by the main body part, and cannot be touched from the outside, so there is no risk of accidentally releasing the engagement.

[0020] A thirteenth cleaning device according to another aspect of the embodiment is any one of 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 liquid from accidentally spilling out when the tank is divided into upper and lower halves when the tank is full of water.

[0021] A fourteenth cleaning device according to another embodiment is a cleaning device according to any one of the first to thirteenth cleaning devices, further comprising a battery for driving the electric blower, a control unit for controlling the electric blower, and an exhaust path for discharging exhaust air from the electric blower outside the device, wherein the battery and the control unit are positioned outside the exhaust path. As a result, even if the exhaust gas discharged by the electric blower contains liquid or dust, it is difficult for these to adhere to the battery or the control unit.

[0022] A fifteenth cleaning device according to another embodiment is a cleaning device according to any one of the first to fourteenth cleaning devices, further comprising a battery arranged below the electric blower and driving the electric blower, a control unit controlling the electric blower, and an exhaust path discharging exhaust air from the electric blower to the outside of 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 noise from the electric blower leaking outside the device.

[0023] 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.

[0024] A 17th cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to sixteenth cleaning devices, further comprising a tank section provided in the main body section for storing liquid sucked through 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 section for controlling the driving of the electric blower, wherein the control section 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, and there is no risk of the float getting caught and erroneously detecting the liquid level, as occurs when a liquid level sensor using a float is used.

[0025] An 18th cleaning device, according to another aspect of the embodiment, is a cleaning device of any one of the 1st to 17th cleaning devices, further comprising an inclination sensor that detects the inclination of the main body and a control unit that controls the driving 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 manner, it is possible to prevent the liquid in the tank from being sucked into the electric blower, thereby preventing breakdowns in the electric blower.

[0026] A 19th cleaning device according to another aspect of the embodiment is configured such that, in the cleaning devices of 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 greater than or equal to 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 greater than or equal to the second threshold. As a result, when the main body part becomes slightly tilted and this state continues for a certain period of time, the blower is stopped, and when the main body part becomes significantly tilted, the blower is stopped in a shorter time, thereby 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, in which case cleaning can be performed without stopping the electric blower.

[0027] A 20th cleaning device according to another aspect of the embodiment is a cleaning device according to any one of the first to nineteenth cleaning devices, wherein the main body portion comprises a blowing member extending from the first suction path and the second suction path into the tank portion and having an outlet, and a suction guide member extending from the suction port of the electric blower into the tank portion, 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 out from the outlet directly toward the opening. This allows the liquid flowing directly from the air outlet toward the opening to be blocked by the blocking portion, preventing the liquid from being sucked into the electric blower.

[0028] A 21st cleaning device according to another aspect of the embodiment is any of the first to 20th cleaning devices, wherein the blowing direction from the blowing port 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.

[0029] A twenty-second cleaning device according to another aspect of the embodiment is any one of the first to twenty-first cleaning devices, further comprising a cap member loosely inserted from the tip end side of the blowing member so as to cover the blowing outlet. As a result, the cap member prevents the airflow from the outlet from hitting the surface of the liquid collected in the tank portion, thereby reducing splashes inside the tank portion and further preventing the liquid from being sucked into the electric blower.

[0030] A twenty-third cleaning device according to another aspect of the embodiment is any one of the first to twenty-second cleaning devices, further comprising a cover that covers the electric blower, the cover having a valve mechanism that opens by negative pressure during suction. This makes it possible, with a simple structure, to prevent liquid from entering the electric blower when the electric blower is not driven.

[0031] 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 a supporting surface, a brush whose bristles protrude downward from the bottom surface is provided at a position 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, which abuts against the supporting surface when the main body is placed on the supporting surface so that the bristles of the brush do not contact the supporting surface. This prevents the brush from hitting the mounting 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 a little farther away from the mounting surface, making the capacitance sensor less susceptible to the effects of the mounting surface and reducing false detections.

[0032] A first cleaning device set according to another embodiment is a cleaning device set including a first to a twenty-fourth cleaning device and a charging stand, and the charging stand has a water drainage hole provided at the bottom and a charging contact provided above the water drainage hole. This makes it safer because even if water leaks from the cleaning device during charging, the contacts are less likely to get wet.

[0033] A second cleaning device set according to another aspect of the embodiment is a cleaning device set comprising a first to twenty-fourth cleaning device, a charging base, and a storage case, wherein the storage case has an engaging portion protruding laterally, and the engaging portion engages with an engaged portion formed on the charging base, thereby juxtaposing the storage case alongside the charging base. This allows the storage case to be easily attached to the charging base.

[0034] First Embodiment 1. Overall configuration of the cleaning device 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 without using liquid. In the following, "air and / or liquid" will be simply referred to as "liquid".

[0035] 1, the cleaning device X includes a device body 01 and a hand tool 3. The device body 01 includes a main body portion 1 and a handle portion 2. The main body 1 includes a suction device section 4, a tank section 5, and a cover section 6, and a handle section 2 is provided on the upper portion of the main body 1 for a 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 of 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. An electric blower 71 (see FIG. 5) that generates a suction force is built into the suction device section 4, and this causes liquid to be sucked through the first suction port 61 or the second suction port 62. The sucked liquid is stored in the tank section 5.

[0036] 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, 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 on 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.

[0037] 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 a support shaft 623 in an openable and closable manner. In this embodiment, there is a first suction path connecting the first suction port 61 and the tank part 5, and a second suction path connecting the second suction port 62 and the tank part 5, and the liquid is sucked by switching between a first state in which the first suction path sucks liquid when the second suction port 62 is blocked and in a closed state (state in FIG. 2), and a second state in which the second suction path sucks liquid when the hose part 31 is connected to the second suction port 62 (state in FIG. 1). Details will be described later. In the following description, the side of the cleaning device X on which the cover part 6 is provided is defined as the front side, the direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction, and the right side when looking at the cover part 6 from the front is defined as the right side in the left-right direction (see the three-way arrow in the lower right of FIG. 1).

[0038] FIG. 3 is a side view of the cleaning device X in 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 portion 1 has a trapezoidal shape with a slanted front oblique side and a vertical rear oblique side, or a shape similar thereto. In other words, the top surface 21 of the handle portion 2 is parallel to the top surface 41 of the main body portion 1, and the rear surface 22 of the handle portion 2 is parallel to the rear surface 42 of the main body portion 1. In addition, the front side 23 of the handle portion 2 is parallel to the front surface of the cover portion 6 of the main body portion 1. Note that "parallel" here includes the case where the angle between the two is within 10°. 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 easily intuitively locate the position of the first suction port 61 when gripping the handle 2. In other words, since 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 locate. An operating unit 24 is provided at the position where the lower surface of the horizontal portion 26 of the handle portion 2 intersects with the rear surface of the inclined portion 27. As shown in Fig. 1, a display unit 25 is provided on the inclined portion 27 of the handle portion 2 to show the user the operating state of the device.

[0039] 5, the operation unit 24 includes a lever portion 241 to be operated by the user with the index finger or the like, a biasing means (e.g., a compression spring 242) that biases the lever portion 241 downward, and a limit switch 244 built into the handle portion 2. When the user operates the lever portion 241, the lever portion 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 a number of LEDs 253 disposed 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-rear direction of the cleaning device X) by operating the operating unit 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 easy to dispose of the liquid.

[0040] Figure 4 shows the tank portion 5 separated from the main body portion 1, where (a) is a view from the upper right rear side of the main body portion 1, and (b) is a view from the lower right front side of the main body portion 1. 4(a), the tank section 5 is provided with a guide groove 54 along the pull-out direction A (front-rear direction in FIG. 1), and when the tank section 5 is attached to the suction device section 4, this guide groove 54 engages with a guide rail section 411 along the A direction of the suction device section 4, and movement in the A direction is locked by a locking mechanism provided on the tank section 5. The guide grooves 54 are formed as a pair on the upper side of the tank section 5, and the guide rail sections 411 are formed as a pair by bending inward in the left-right direction from the side sections along the A direction on the top surface of the suction device section 4. The lock mechanism is constituted by an engagement (eg, protrusion) portion 542 of the tank portion 5 and an engagement (eg, recess) portion 412 of the suction device portion 4, and the engagement protrusion portion 542 engages with the engagement recess portion 412. The tank unit 5 is provided with a known direction changing mechanism such as a crank mechanism, and is configured so that by pushing the operation parts 541 in, the engagement protrusions 542 are recessed into the upper surface of the tank unit 5. As a result, the engagement between the engagement protrusions 542 and the engagement recesses 412 can be released by pushing the pair of operation parts 541 inward in the left-right direction, for example, by pinching them between the thumb and index finger.

[0041] 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 5 taken out of the cross-sectional view of Fig. 5. The tank section 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 section 5 is vertically separable into a lower tank section 51 and an upper tank section 52, and its front side is covered by a cover section 6. The lower tank section 51 corresponds to an example of the lower tank section of the first tank section and the second tank section.

[0042] The tank section 5 has a shape similar to that of the main body section 1, and is trapezoidal with an inclined front side and an upright rear side. When the tank section 5 is cut in the center in the vertical direction, 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 section 5 includes a valve housing member 57 into which a valve mechanism section 73 that opens and closes the suction port of the suction device section 4 (electric blower section 71) is inserted. 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 section 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 section 5 and guides the suction to the electric blower 77 side. The tank portion 5 has a brush portion 511 in the vicinity of the first suction port 61. Here, the brush portion 511 is provided on the rear side of the first suction port 61. The tank portion 5 has an inflow direction changing portion 53 that prevents the sucked liquid from being directly sprayed onto the stored liquid.

[0043] (1-1) Top and bottom split structure of the tank Figure 7 shows the state when the cover portion 6 is removed from the front of the tank portion 5 and the tank portion 5 is further divided into a lower tank portion 51 and an upper tank portion 52, where Figure 7(a) is an oblique view seen from the front upper right side, and Figure 7(b) is an oblique view seen from the rear lower right side.

[0044] 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. 7(b), the upper tank portion 52 has a downward opening portion that is the same size and shape as the opening of the lower tank portion 51. Both tank parts 51, 52 are fixed by a front fixing structure 56 and a rear fixing structure 55 provided at the front and rear of the tank part 5, in a state where they are in close contact with each other via the packing 513. The cross-sectional shape of the packing 513 is square or circular. If the cross-sectional shape is rectangular, it may cause water leakage if it is installed incorrectly in a twisted state (a state where the short sides are abutting instead of the long sides that are supposed to be abutting).

[0045] 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 portion 52 extends downward so as to cover the front surface 514 of the lower tank portion 51, and a hook portion 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 portion 51, and the two engage with each other. The rear fixing structure 55 is composed of an engagement protrusion 551 provided on the lower part of the rear wall surface of the upper tank part 52, and an engagement hole part 552 provided on the upper part of the rear wall surface of the lower tank part 51. The engagement protrusion part 551 is biased in a direction protruding outward (rearward) in the front-rear direction by a biasing member such as a built-in compression spring. Note that the engagement relationship between the engagement protrusion part 551 and the engagement hole part 552 may be reversed.

[0046] When attaching the upper tank portion 52 to the lower tank portion 51, first, the hook portion 561 is engaged with the engaged portion 562 at the front side of the tank portion 5, and then the engaging protrusion portion 551 at the rear side of the tank portion 5 is fitted into the engaging hole portion 552 to lock it. Conversely, when separating the upper tank portion 52 from the lower tank portion 51, the engaging protrusion portion 551 on the rear side of the tank portion 5 is pushed in to release the engagement with the engaging hole portion 552, and then the rear side of the upper tank portion 52 is raised to disengage the hook portion 561 on the front side of the tank portion 5 from the engaged portion 562 to separate them. The cover portion 6 covering the front wall portion 526 of the upper tank portion 52 is also configured to be detachable from the front wall portion 526, so that the three members can be disassembled for cleaning.

[0047] (1-2) Valve housing member As shown in FIG. 6, the valve housing member 57 is disposed inside the upper tank portion 52, at an upper rear side 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 an upper portion of a 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. Here, the bottom portion 572 is located on the front side. The opening 571a is formed facing upward, so that liquid is unlikely to enter the bottomed tubular portion 571. In addition, a lower portion 571b of the opening 571a in the bottomed tubular portion 571 serves as a shielding portion that blocks liquid or air flowing directly from the blowing port 5312a of the inflow direction changing portion 53 toward the opening 571a. 5, a valve mechanism 73 of the electric blower 71 is inserted into the large diameter cylindrical portion 573. The valve mechanism 73 will be described in detail later. A replaceable filter 574 is attached to opening 571a to prevent dust and other foreign matter from being sucked into 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.

[0048] (1-3) Brush section 3, the brush part 511 is provided at a position close to the first suction port 61 on the front side of the lower tank part 51 (for example, rear side of the first suction port 61). The tip (hair tip) of the brush of the brush part 511 protrudes downward from the bottom surface 4a of the main body part 1 and the bottom surface 51a of the lower tank part 51. This makes it possible to remove dust and dirt from the surface to be cleaned when cleaning is performed using the first suction port 61. Protrusions (ribs) 528a, 528b, 400a, 400b that protrude downward are provided on the bottom surface of main body 1 (suction device section 4 and tank section 5) in an area rearward of brush section 511. The lower ends of protrusions 528a, 528b, 400a, 400b are configured to be at the same or approximately the same position as the lower end of brush section 511. This can reduce deformation of the bristles of brush section 511 due to the placement surface (FL) when main body 1 is placed on the placement surface. The first suction port 61 is provided 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 height of the protruding parts 528a, 528b, 400a, 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 protruding parts 528a, 528b, 400a, 400b move away from the surface to be cleaned and the tip of the brush part 511 reliably abuts against the surface to be cleaned. The protective protrusion of the brush part 511 is not limited to a rib shape, but may be a boss shape. The rib shape may extend in the left-right direction or in the front-rear direction.

[0049] (1-4) Suction route In this embodiment, the cleaning device X has two suction ports: a first suction port 61 provided at the lower 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)). Depending on the suction port selected by the user, the suction path from the suction port to the tank chamber 50 of the tank unit 5 differs.

[0050] (A) First suction route 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"). FIG. 8 is an exploded perspective view of the upper tank portion 52, where (a) is a view seen from the upper right front side, and (b) is a view seen from the lower right rear side. As shown in FIG. 8(a), a tank inlet hole 525, which serves as an entrance to the interior of the tank chamber 50, is provided at the upper part 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. 7(b), a rib 641 having the same shape as the rib 5261 is formed on the rear surface 64 of the cover portion 6. As shown in FIG. When the cover part 6 is attached to the front wall part 526 of the upper tank part 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 part 526 of the upper tank part 52, and the back surface 64 of the cover part 6. At this time, the second suction port 62 of the cover part 6 is blocked by the lid member 621 as shown in FIG.

[0051] (a) Inflow direction change section The inflow direction changer 53 is provided in the tank portion 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 flowing in liquid is sucked into the electric blower unit 71, there is a risk of the electric blower unit 71 breaking down. Therefore, the flow direction change unit 53 has the function of reducing the flow direction and force of the liquid from the tank inlet hole 525 into the tank chamber 50. FIG. 6( b ) is an assembly diagram of the inflow direction changer 53 . As shown in the figure, the inflow direction changing section 53 includes 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 to the blowing member 531 so as to cover at least the blowing outlet 5312a.

[0052] The blowing member 531 has a cylindrical shape with a bottom as a whole, and includes, from the front side in the cylindrical axial direction, a threaded portion 5311 having a thread groove 5311a formed on the inner peripheral surface, a cylindrical portion 5314, and a bottom portion 5313, in this order, and a blowing outlet 5312a is provided in the cylindrical portion 5314. The blowing 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 a fastener 5322 such as a screw. The inner diameter of the cap member 532 is set larger than at least the outer diameter of the tubular portion 5314 of the blowing member 531 on the bottom 5313 side rather than the threaded portion 5311, and a 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. The attachment member 524 is composed of a tubular portion 5241 having a screw thread 5241a formed on its outer circumferential surface, and a flange portion 5243, as shown in FIG.

[0053] 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, the recessed portion 5221 being recessed (recessed) by the thickness of the flange portion 5243 of the inflow direction changing portion 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 configured to be lower. The inflow direction changer 53 is fixed to the upper tank section 52 by screwing and tightening the screw groove 5311a of the screw section 5311 of the inflow direction changer 53 into the screw thread 5241a of the tubular section 5241 of the mounting member 524, which penetrates the tank inlet hole 525 of the tubular section 5241 and protrudes toward the tank chamber 50. 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.

[0054] The liquid sucked through the first suction port 61 flows into the inflow direction changer 53 attached to the tank inlet hole 525 via the first suction path F1. 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, and 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 momentum of the flow is reduced, and the liquid 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. In addition, since the direction of the sucked fluid is changed and the momentum is reduced, the fluid is less likely to enter the electric blower 71 side. In addition, the imaginary blowing line in the blowing direction in which liquid is blown out from the blowing outlets 5312a, 5312a and the imaginary suction line in the suction direction in which air is sucked in from the opening 571a of the valve accommodating member 57 are in a twisted position, here vertical, thereby preventing the liquid blown out from the blowing outlets 5312a, 5312a from being sucked in toward the electric blower unit 71.

[0055] (c) Second suction route 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 FIG. 7, the second suction port 62 of the cover part 6 is provided in a position concentric with the tank inlet hole 525 of the upper tank part 52 (in FIG. 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. The connecting part 312 includes an insertion part 3121 to be inserted into the second suction port 62 as shown in Fig. 17(b). 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 appear in reality, are shown as circles for the sake of convenience.

[0056] On the other hand, as shown in Fig. 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 Fig. 8(a)). When connecting the hose portion 31, the insertion portion 3121 of the connection portion 312 is pushed into the vertical groove (groove portion parallel to the cylindrical axis) of the L-shaped groove 5242 and further rotated rightward to position the convex portion 3121a at the end of the horizontal groove (groove portion in the circumferential direction) of the L-shaped groove 5242, thereby providing a mechanism (twist lock mechanism) for locking the hose portion 31 so that it does not easily come out of the second suction port 62. However, the lock mechanism is not limited to the twist lock mechanism described above.

[0057] 9(a) and (b) are diagrams showing a first state in which a first suction path F1 is formed, and a second state in which a 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 rear surface of the cover portion 6 and the front wall portion 526 of the tank portion 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 to the inflow direction change portion 53 is blocked, so that liquid cannot be suctioned 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.

[0058] The hand tool 3 is sufficiently lightweight compared to the main body 1 equipped with the suction device 7 and battery 8, so it can easily clean surfaces of various inclinations. Moreover, the hand tool 3 has a path switching structure that can automatically switch 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.

[0059] (2)Suction device part Fig. 10 is a perspective view of the suction device unit 4 in an exploded state as viewed from the upper right side, and Fig. 11 is a perspective view of the suction device unit 4 in an exploded state as viewed 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 within 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.

[0060] (2-1) Suction device As shown in Figures 10 and 11, the suction device 7 includes at least an electric blower unit 71, an exhaust flow path unit 72, and a valve mechanism unit 73. The electric blower unit 71 is configured by accommodating an electric blower 77 (see Figure 15) made up of a motor with a fan inside a cylindrical casing 74. When the electric blower 77 is driven, the valve mechanism unit 73 opens and sucks in air from within the tank chamber 50. The sucked air is exhausted to the outside of the device via the exhaust flow path unit 72.

[0061] (A) Valve mechanism FIG. 12(a) is a perspective view of the front of the suction device unit 4 seen from the lower right side, and FIG. 12(b) is a vertical cross-sectional view of the valve mechanism unit 73 with the case member 401 on the right side of FIG. 12(a) removed. As shown in FIG. 12, the valve mechanism 73 includes three arm portions 733 formed on the front side of a tubular 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-rear direction, a disk-shaped valve member 735 provided at the rear of the pin members 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 an 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.

[0062] The electric blower 71 side of the tubular member 731 is connected to an opening 741 of a casing 74 of the electric blower 71. When the electric blower 71 is driven, the space inside the tubular member 731 becomes negative pressure and the valve member 735 moves rearward against the biasing force of the spring body 736, causing the valve of the valve mechanism 73 to open and enabling air to be sucked in from the tank chamber 50. A packing 76 is disposed on the outer periphery of the cylindrical member 731 to improve adhesion with the tank portion 5.

[0063] (a) Discharge flow passage section The exhaust flow passage portion 72 forms a flow passage for exhausting the air sucked by the electric blower portion 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 behind. As shown in the figure, exhaust flow path section 72 is connected to the rear of casing 74 of electric blower section 71 and includes exhaust guide section 720 for guiding air exhausted from electric blower section 71, and first guide section 721 and second guide section 722 connected to opening section 720a of exhaust guide section 720 for guiding air exhausted from exhaust guide section 720 to below battery 8. Here, exhaust guide section 720 and first guide section 721 are configured as an integrally molded product.

[0064] 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 side 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 extending 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 the control unit 9 from being exposed to exhaust air containing dust and moisture. Also, with this configuration, the inner surface of the right case member 401 can be used as part of the discharge path F3, so that the number of parts can be reduced. The exhaust port forming cover 75 can be separated from the suction device section 4 by pulling it out in the direction of the arrow B in FIG. 13(b) (to the right in FIG. 1).

[0065] Figure 14(a) is an oblique 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 Figure 14(b) is an oblique 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 manner, the discharge path is constituted by 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.

[0066] 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 and removed. By making the member provided with the exhaust port (slit hole 754) removable from the case member 402 in this manner, maintenance such as dust removal from this portion becomes easier.

[0067] (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 part 81 for receiving power by connecting with a power terminal 116 (see FIG. 18) of an external charging adapter is provided adjacent to the battery 8. The terminal connection part 81 is disposed in a position close to the rear wall of the right case member 401, and slit holes 811, 812 for inserting a pair of power terminals 116 from the outside are formed in the right case member 401 at a position corresponding to the terminal connection part 81. A rib 813 is provided so as to surround the slit holes 811, 812. Since the rib 813 is erected so as to surround the periphery of the slit holes 811, 812, when the device body 01 is placed on a horizontal surface as shown in FIG. 3, even if the outside of the device body 01 gets wet and water drops run down the surfaces of the case members 401, 402 of the device body 01, the water is blocked by the rib 813, so that leakage is unlikely to occur at the terminal connection part 81.

[0068] (D) Control system FIG. 15(a) is a block diagram showing an outline of a 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 executes control to stop the electric blower unit 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 non-volatile memory such as a ROM, and a volatile memory such as a RAM on a circuit board.

[0069] The non-volatile memory stores a control program for the cleaning device X, various threshold values ​​for control, and the like, and the volatile memory serves as a work area for the program. Also, 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 level of liquid 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 portion 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. For example, a three-dimensional acceleration sensor is used as the tilt sensor 102, which can detect the forward tilt θb, the backward tilt θc, and the left-right tilt θa of the main body 1 as shown in FIG.

[0070] Conventionally, a method for detecting the liquid level in a tank without contact has been known in which a float with a magnet is attached to the end of an arm supported inside the tank so that it can swing, 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, but 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 possible 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 section 5. As an example of such a capacitance sensor, a detection electrode that is arranged outside the tank section 5 and whose capacitance changes according to changes in the liquid level in the tank section 5, and a reference electrode that is arranged around the detection electrode and whose capacitance does not change according to changes in the liquid level in the tank section 5, and the liquid level in the tank section 5 is determined by comparing the outputs of the detection electrode and the reference electrode. However, the configuration of the capacitance sensor is not limited to this configuration, and any configuration may be used as long as the sensor can detect the capacitance that changes according to the liquid level in the tank section 5 from outside the tank section 5. This type of capacitance sensor does not require a float inside the tank, making it possible to reduce the number of parts, and also makes it possible to avoid a situation in which the liquid level cannot be detected due to a problem with the float.

[0071] 3. Drive stop control FIG. 16 is a flow chart showing the details of the drive stop control of electric blower 77 executed by control unit 9, which is executed while 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), and 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 or not. 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.

[0072] If it is determined that the tank portion 5 is not full (step S12: NO), then proceed to step S13, in which it is determined whether any of the inclinations θa, θb, θc (see Figure 15(b)) of the main body portion 1 detected by the inclination sensor 102 is greater than or equal to the preset threshold values ​​θ1, θ2, θ3, respectively. Here, the threshold value θ3 of the rearward inclination θc is smaller than the threshold value θ2 of the forward inclination θb (θ2>θ3). This is because if the liquid is tilted rearward, the liquid level in the tank portion 5 will reach the opening 575 of the valve accommodating member 57 and will likely be sucked into the electric blower 77. The threshold value θ1 of the left-right inclination θa is not particularly limited, but it is preferable that θ2>θ1>θ3. If any one of the gradients θa, θb, θc is equal to or greater than the respective threshold values ​​θ1, θ2, θ3 (step S13: YES), the driving of 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.

[0073] 4. Position of center of gravity of main body 1 When the cleaning device X is held up by gripping the handle 2, if the center of gravity of the cleaning device X is shifted in the front-rear direction from the range of the gripping portion 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, so that the device tends to feel heavier than it actually is. Therefore, it is desirable to arrange each component so that the center of gravity of the cleaning device X is located directly below the range of the gripping portion of the handle 2. Therefore, it is desirable to place the electric blower 77, which is the heaviest, directly below the grip area of ​​the handle portion 2. Furthermore, it is desirable to place the battery 8 directly below the above-mentioned area.

[0074] <Second embodiment> FIG. 17(a) is an external perspective view 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 for storing the device body 01 of the cleaning device X in an upright position and also serving as a charging stand for the battery 8, and a storage box 120 for storing the hand tool 3 and the liquid spray 10.

[0075] 1.Charging stand The charging stand 110 is designed to accommodate the device main body 01 from which the hand tool 3 has been removed, in a vertically standing state with the first suction port 61 facing upward. FIG. 18(a) is a perspective view showing the internal structure of 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 by an imaginary plane intersecting with the axis of the cylinder, 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 110a, an inner peripheral wall portion 110b, an upper wall portion 110c, a bottom wall portion 110d, 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.

[0076] A base 118 on which the device main body 01 is placed in an upright state with the first suction port 61 facing up is provided on the upper side of the bottom wall 110d of the charging stand 110. A pair of plate-shaped power terminals 116 are provided in an upright state on the base 118 at positions corresponding to the terminal connection parts 81 of the device main body 01. A power socket portion 115 is provided approximately in the center of the bottom wall portion 110d. By inserting a power plug 114 connected via a power cord 113 to a power adapter (not shown) that is connected to a commercial power outlet into this power socket portion 115, a predetermined DC voltage required for charging the battery 8 is applied to a pair of power terminals 116.

[0077] 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 face 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 water drainage holes 111, 112 are drilled in the base 118 and bottom wall 110d (FIGS. 18(a) and 18(b)). Since the power supply terminal 116 is disposed above the water drainage holes 111, 112, even if water leaks from the cleaning device X during charging, the power supply terminal 116 is unlikely to get wet, so it is safe. In addition, when the device main body 01 in which the liquid in the tank portion 5 has reached the full level L1 is housed in the charging stand 110, the liquid level in the tank portion 5 is configured to be located below the opening 571a of the valve accommodating member 57. With this configuration, simply by standing the device body 01 of the cleaning device X upright and storing it in the charging stand 110, the battery 8 can be charged easily and safely, which is very convenient.

[0078] 2.Storage box The storage box 120 stores the hand tool 3 and the liquid spray 10 therein (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 used frequently for cleaning 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.

[0079] As shown in FIG. 19, the storage box 120 has a box shape that is 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. 19(a), the storage box 120 includes a sub-pedestal 121 on the bottom side of one side wall portion 123, with engaging arms 1211 and 1212 projecting laterally. Meanwhile, in the lower part of the outer peripheral wall portion 110a of the charging stand 110, at positions corresponding to the engagement arms 1211, 1212, slit groove portions 1171, 1172 are formed as shown in FIG. 18(b). Charging stand 110 and storage box 120 are joined together by fitting engaging arms 1211, 1212 into slit grooves 1171, 1172. At this time, secondary base 121 of storage box 120 is sandwiched between bottom wall 110d of charging stand 110 and the placement surface, thereby increasing stability. The liquid sprayer 10 contains a cleaning liquid (water or a cleaning liquid according to the type of dirt). When cleaning, the neck portion of the liquid sprayer 10 is gripped and the lever 11 is pulled to cause the liquid to be sprayed 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 dirt and debris from the surface to be cleaned, and the dirt and debris are sucked up together with the liquid to clean the surface to be cleaned.

[0080] Although the embodiment has been described above, the present invention is not limited to this embodiment, and may be modified as follows, for example. In addition, the embodiment and the modified examples may be combined, or the modified examples may be combined. Furthermore, examples not described in the embodiments or modified examples, and design changes that do not deviate from the gist of the invention are also included in the invention related to the embodiments.

[0081] <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 electric blower 71 is not important with respect to the positional relationship with other parts and the position of the center of gravity, it may be disposed 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.

[0082] (2) Power supply section Although a rechargeable battery 8 is provided as the power source, 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 made detachable, so that when the electric cord is attached, the electric blower 71 receives power from the power cord to drive the electric blower 71 and charge the battery 8, or when the power cord is removed, the power source may be switched to the battery 8 for drive. Furthermore, normal dry batteries may also be used.

[0083] (3) Battery The battery 8 is disposed below the electric blower 71, but may be disposed at a position other than below the electric blower 71 if the position of the center of gravity is not of concern. The long battery 8 is disposed such that its length is aligned along the front-to-rear direction, but may be disposed along the left-to-right or up-to-down direction. By disposing it in the up-to-down direction, the dimension of the suction device unit 4 in the front-to-rear direction can be reduced, and by disposing it adjacent to the rear side of the electric blower 71, the positions of the centers of gravity of the two can be brought closer together, making it easier to design in terms of the sense of weight.

[0084] (4) Exhaust flow path The exhaust flow path is formed so as to run from the rear of electric blower 71 toward one side in the left-right direction below battery 8, but an exhaust port (slit hole 754) may be provided on the rear side below battery 8. In addition, when the length of the exhaust flow path is not important, the exhaust may be discharged from another location downstream of electric blower 71. The exhaust port is configured with a plurality of slit holes 754, but may be configured with one opening. Also, the exhaust port is provided in exhaust port forming cover 75 that is detachable from case member 402, but if cleaning of the exhaust port is not an issue, it may be formed in the case member.

[0085] (5) Handle The handle portion 2, together with the main body portion 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 has a slanted front side; however, the front side may or may not be slanted. When not paying attention to the inclined portion 27, the handle portion 2 may have a shape extending upward, may have only the rear side inclined, or may have both the front and rear sides inclined. 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 or is within a range of 0.8 to 1.2, but may be an angle different from the inclination angle of the front wall.

[0086] (6) Drive stop control In the first embodiment described above, as explained in the flowchart of FIG. 16, the tilt sensor 102 detects any of the tilts θa, θb, θc (see FIG. 15(b)) of the main body 1, and determines whether or not the tilt is equal to or greater than a different preset threshold value θ1, θ2, θ3, respectively, and stops driving the electric blower 77. However, there may be only one type of threshold value (for example, the smallest θ3 for safety reasons), and the tilt detected may be only in one direction (for example, the backward tilt θc). Furthermore, two thresholds, large and small, 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.

[0087] 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 in Fig. 16 in that step S13 is replaced by steps S21 to S25, and the following description will focus on these differences. If it is determined in step S12 that the tank unit 5 is not full (step S12: NO), it is then determined whether the inclination θ detected by the inclination sensor 102 is θ11 (e.g., 15°) or more (step S21), and if it is determined that θ≧θ11 (step S21: YES), the timer starts counting (step S22) and it is determined whether the inclination θ≧θ12 (step S23). Here, θ12 is, for example, 30°. If θ≧θ12 (step S23: YES), and the tilted state continues for time T1 (for example, 0.5 seconds) (step S24: YES), the driving of electric blower 77 is stopped (step S14).

[0088] 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, so that the drive 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-described 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 and 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 safety of the device. Also, by eliminating the need to stop the main body 1 when it is tilted for just an instant during use, convenience can be improved.

[0089] (7) Tank section 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, too, two suction paths can be selected. The tank section 5 may be fixedly provided to the main body section 1. When the tank section 5 is fixed to the main body section 1, it is preferable to provide the tank section 5 with a plug for draining water.

[0090] The tank 5 includes an inflow direction changer 53 including a blowing member 531 and a cap member 532, but as long as it can change the inflow direction of the liquid, it may be an inflow direction changer 53A without a cap member 532, as shown in FIG. 21. The inflow direction changer 53A here has a screw portion 5311, a tube portion 5314, and a bottom portion 5313A in a downwardly slanting shape. A communication hole 5319 is formed in the bottom portion 5313A, and guides the inflowing liquid to the lower tank portion 51 side. A pair of blowing ports 5312a of the tube portion 5314 are provided in a state facing each other in the left-right direction, and the peripheral wall of the tube portion 5314 exists above the valve housing member 57A. This allows the inflowing liquid to flow to the lower tank portion 51 side while being prevented from scattering to the valve housing member 57A side. Furthermore, since the inflow direction changing portion 53 extends downward from the opening 571Aa of the valve accommodating member 57A in a rearwardly downward manner, it is possible to further restrict liquid from flowing into the tank portion 5A and entering the valve accommodating member 57A.

[0091] Although the valve housing member 57 in the embodiment includes the filter 574 in a portion close to the bottom portion 572 of the bottomed tubular portion 571, as shown in Fig. 21, the valve housing member 57A may include the filter 574 in a longitudinal intermediate portion of the bottomed tubular portion 571A. The bottomed tubular portion 571A is shaped such that the upper side of the region extending from the intermediate portion where the filter 574 is disposed to the bottom portion 572A is missing, and an opening 571Aa is formed in the missing portion. The lower portion 571Ab of the opening 571Aa in the bottomed tubular portion 571A serves as a shielding portion that blocks liquid or air flowing directly from the outlet 5312a of the inflow direction changing portion 53A toward the opening 571Aa.

[0092] The packing 513 disposed between the lower tank portion 51 and the upper tank portion 52 has a rectangular ring shape (see FIG. 7), but may be a packing 513A having a covering portion 519 that covers a part of the lower tank portion 51, as shown in FIG. 21. This makes it possible to prevent liquid from splashing up from the rear of the lower tank portion 51 and being sucked into the electric blower, even if the cleaning device X swings back and forth.

[0093] The tank portion 5 does not include a partition wall portion, but may include a partition wall portion 529 as shown in Fig. 21. The partition wall portions 529 here are provided on both the left and right sides of the inflow direction changing portion 53A inside the upper tank portion 52. The partition wall portion 529 is formed of a plate-shaped portion perpendicular to the front-rear direction. When viewed from the left-right direction, the partition wall portion 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 accommodating member 57A. This makes it possible to prevent the liquid scattered from the outlet 5312a from heading toward the opening 571Aa. From this perspective, the partition wall portion 529 also serves as a shielding portion that blocks the liquid or air heading directly from the outlet 5312a of the inflow direction changer 53A toward the opening 571Aa.

[0094] <<Invention>> As examples of embodiments and modifications, at least the following inventions are included.

[0095] <Invention 1> 1. Prior art JP 2021-87780 A discloses a handheld suction cleaner that is easily portable as a cleaning device that sucks up liquid. However, in the above-mentioned cleaning device, since the suction port is on the bottom, it is easy to work on the floor, but when cleaning surfaces in various directions, it is necessary to rotate the entire main body. In that case, since the main body is somewhat heavy, it cannot be said that the workability is good (for convenience, it will be called "the first problem"). An object of the present invention 1 is to provide a cleaning device that is easy to use for cleaning a variety of 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 portion, an electric blower housed in the main body and generating suction force; A first suction port and a second suction port are 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 the second suction port in addition to the first suction port, which improves workability when cleaning various cleaning surfaces.

[0096] <Invention 2> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary main body. However, in the above-mentioned suction cleaner, the carry handle 14 is not parallel to the upper surface of the unitary main body, so the overall unit lacks a sense of unity and is not very compact (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 overall 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 for generating suction force; A handle portion provided above the main body portion; Equipped with 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 gives the device a more unified appearance, and by locating the first suction port on an 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, improving operability.

[0097] <Invention 3> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary main body. However, the above-mentioned suction cleaner does not take into consideration the position of the center of gravity of the main body, and the heaviest part, the suction source 18, is positioned behind the carry handle 14, resulting in an overall poor balance and making the user holding the carry handle 14 feel it is heavy (for convenience, this will be referred to as the "third problem"). The third invention aims to realize a cleaning device that is easy to use by reducing the sense of weight when the handle is gripped. 2. Invention 3 The cleaning device according to the third aspect of the present invention is A cleaning device capable of sucking air and liquid, A main body having an electric blower for generating suction force; A handle portion provided above the main body portion; Equipped with 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 provides good balance when gripping the handle and reduces the user's sense of weight.

[0098] <Invention 4> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner in which a suction source 18 is provided at the rear of a housing 12, a recovery tank 20 is provided in the center, and a suction nozzle 16 is provided at the front. However, in the above-described structure, the collection 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 has an object to realize a cleaning device capable of increasing suction efficiency. 2. Invention 4 The cleaning device according to the 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 covering a front side of the tank portion and having a first suction port and a second suction port; Equipped with The front surface of the tank portion constitutes a part of a first suction path that communicates between the first suction port and the tank portion, and a part of a second suction path that communicates between 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, making it possible to shorten the suction path and improve suction efficiency.

[0099] <Invention 5> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary main body. However, in the above-mentioned suction cleaner, the carry handle 14 is not parallel to the upper surface of the unitary main body, and compactness is poor (for convenience, this is 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 The cleaning device according to the 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 before 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.

[0100] <Invention 6> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner in which a suction source 18 is provided at the rear of a housing 12, a recovery tank 20 is provided in the center, and a suction nozzle 16 is provided at the front. However, the above-mentioned structure has a problem in that cleaning the suction path is difficult (for convenience, this problem will be referred to as the "sixth problem"). A cleaning device according to a sixth aspect of the present invention has an object to provide a cleaning device that can easily clean the suction path. 2. Invention 6 A first cleaning device according to the sixth 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 covering a front side of the tank portion and having a first suction port and a second suction port; Equipped with 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 at least 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 portion is detachable from the suction device portion. This makes it easier to clean the suction path.

[0101] <Invention 7> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner in which a suction source 18 and an exhaust port 22 are provided on the rear side of the housing 12. However, in 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 has an object to provide a cleaning device capable of suppressing noise. 2. Invention 7 The cleaning device according to the 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 configured to drive 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.

[0102] <Invention 8> 1. Prior art JP 2021-65532 A discloses a cleaning device that discharges liquid, which includes a device 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 body having a suction port for sucking in wastewater from the hand tool and a discharge port for discharging the sucked air, and a float that uses the wastewater in the tank body to block the discharge port. However, in the cleaning device as described above, a float is used to detect the liquid level in the tank, and if the float gets stuck, detection is not possible (for convenience, this is referred to as "the eighth problem"). An object of the eighth invention is to provide a cleaning device with improved detection accuracy (detection stability). 2. Invention 8 The cleaning device according to the 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 that stores the liquid sucked through the suction port; a capacitance sensor provided on a side of the tank portion and configured to detect a liquid level in 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, based on a detection result of the capacitance sensor, that the tank unit is full of water. As a result, since a float is not used, it will not get caught on dirt or the like, and detection accuracy (detection stability) can be improved.

[0103] <Invention 9> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary main body. However, the above-mentioned suction cleaner does not take into consideration the driving of the suction source 18 when the unitary main body is tilted (for convenience, this is 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 The cleaning device according to the 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 that stores the liquid sucked through the suction port; A tilt sensor that detects the tilt 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. With this, by stopping the electric blower when the suction attachment part is tilted by a predetermined angle or more, it is possible to prevent the liquid in the tank part from being sucked into the electric blower, thereby preventing breakdown of the electric blower.

[0104] <Invention 10> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary main body. However, the above-mentioned 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 the tenth aspect of the present invention comprises: A cleaning device set including a cleaning device capable of sucking air and liquid and a charging stand, The cleaning device includes: 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 provided above the drain hole. This makes it safer because even if water leaks from the cleaning device during charging, the contacts are less likely to get wet. <Invention 11> 1. Prior art JP 2021-87780 A describes a handheld suction cleaner having a carry handle 14 and a unitary main body further provided with a supply tank 26, a recovery tank 20, and a suction source 18, which are held in the unitary 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 storage troublesome 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 the 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 includes: 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, so that the storage case is arranged next to the charging base. This allows the storage case to be easily attached to the charging stand, and the integration improves convenience.

[0105] <Other> The matters specifying the inventions of each invention are not limited by the matters specifying the other inventions. Moreover, each invention may include the matters specifying the other inventions, or may include the configurations described in the embodiments. Furthermore, inventions 2 to 11 may include some or all of the matters specifying the cleaning devices 1 to 24 of invention 1. [Explanation of symbols]

[0106] X Cleaning device 1 Main unit 2 Handle 3. Hand Tools Section 4 Suction device section 5 Tank section 6 Cover part 7 Suction device 8. Battery 9. Control Unit 31 Hose section 61 1st suction port 62 2nd suction port 73 Valve mechanism 74 Electric blower 101 Full water sensor 102 Tilt Sensor

Claims

1. A cleaning device capable of sucking air and liquid, A main body portion, 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 liquid sucked through the first suction port and the second suction port; a first suction passage provided in the main body portion and communicating between the first suction port and the tank portion; a second suction passage 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. Cleaning equipment.

2. A handle portion is provided above the main body portion, The electric blower is disposed with the center of gravity of the electric blower located directly below the handle portion.

2. The cleaning device of claim 1.

3. The 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.

2. The cleaning device of claim 1.

4. The tank portion is attached to and detached from the main body portion in a horizontal direction.

2. The cleaning device of claim 1.

5. The tank portion has an opening portion on a rear surface thereof that is connected to the electric blower, The periphery of the opening is sealed by a packing.

2. The cleaning device of claim 1.

6. The tank portion includes a first tank portion and a second tank portion that can be separated in a 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 first tank portion and the second tank portion, 2. The cleaning device of claim 1.

7. 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.

8. the main body includes an exhaust path that exhausts exhaust air 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.

2. The cleaning device of claim 1.

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