Cleaning device

Abstract

To provide a cleaning device capable of improving easiness of maintenance inside a tank part.SOLUTION: A cleaning device capable of sucking air and a liquid includes: a main body part 11 having an electric blower to generate suction force; and a tank part 12 detachably arranged in the main body part 11 and for storing the sucked liquid. The tank part 12 includes: a first tank 511; and a second tank 513 detachable with respect to the first tank 11.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a cleaning device capable of sucking air and liquid. [Background technology]

[0002] A cleaning device has been disclosed that is capable of sucking air and liquid, has a suction unit 21 that generates suction force, and is equipped with a wastewater tank 6 that stores the sucked liquid (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-065532 Summary of the Invention [Problem to be solved by the invention]

[0004] Although the above-mentioned cleaning device is capable of removing the wastewater from the wastewater tank, dust tends to remain inside the device. An object of the present invention is to provide a cleaning device that can improve ease of maintenance inside a tank portion. [Means for solving the problem]

[0005] The cleaning device of the present invention comprises a main body portion capable of sucking in air and liquid and having an electric blower that generates suction force, and a tank portion that is detachably attached to the main body portion and stores the sucked liquid, the tank portion having a first tank and a second tank that is detachably attached to the first tank. Effect of the Invention

[0006] According to the above-described configuration, the maintenance inside the tank portion can be made easier. [Brief description of the drawings]

[0007] [Figure 1] 1A and 1B are perspective views of a cleaning device according to an embodiment, in which FIG. 1A is a view seen from above the front side, and FIG. 1B is a view seen from above the rear side. [Diagram 2] 1 is a perspective view of the suction tank unit removed from the main body and inverted in the front-to-back direction, as viewed from below the front. FIG. [Diagram 3] 1 is a perspective view of the main body in an exploded state as viewed from above the front side. FIG. [Figure 4] 1 is a perspective view of the main body in an exploded state as viewed from below and rearward; [Diagram 5] 13A is a view of the first case seen from the rear side, and FIG. 13B is a view of the second case seen from the front side. [Figure 6] FIG. 4 is a perspective view showing a state before a suction flow path forming member is attached to a first case. [Figure 7] 11 is a perspective view showing a state before a discharge flow path first member and an air blowing unit are attached to a first case to which a suction flow path forming member is attached. FIG. [Figure 8] 1A is an oblique view showing the state before the circuit unit and the power supply unit are attached to the first case to which the suction flow path forming member, the exhaust flow path first member and the blower unit are attached, and FIG. 1B and FIG. 1C are oblique views showing the state after the circuit unit and the power supply unit are attached to the first case to which the suction flow path forming member, the exhaust flow path first member and the blower unit are attached. [Figure 9] 1A is an oblique view showing the state before the operation unit and the second discharge flow path member are attached to the second case, and FIG. 1B is an oblique view showing the state after the operation unit and the second discharge flow path member are attached to the second case. [Figure 10] 11A and 11B are cross-sectional views of the blower unit, where FIG. 11A is a view from the left side, and FIG. 11B is a perspective view from below and in the front. [Figure 11] 1A is a perspective view of the power supply unit in an exploded state as viewed from below on the left side, and FIG. 1B is a perspective view of the cross section of the case in an exploded state as viewed from above on the right side. [Figure 12] FIG. 1A is a cross-sectional view illustrating a suction flow path, and FIG. 1B is a cross-sectional view illustrating a discharge flow path. [Figure 13] 1A is a cross-sectional view of the suction tank section, where (a) is a perspective view of the cross section perpendicular to the front-to-back direction as viewed from below the front, and (b) is a perspective view of the cross section perpendicular to the left-to-right direction as viewed from above the front. [Figure 14] 4A and 4B are perspective views of the suction tank section in an exploded state, in which FIG. 4A is a view from above the front side, and FIG. 4B is a view from below the rear side. [Figure 15] 11A and 11B are perspective views of the receiving part in an exploded state, in which FIG. 11A is a view from below the rear-front, and FIG. [Figure 16] FIG. 2 is a cross-sectional view of a hand tool. [Figure 17] FIG. 2 is a perspective view of the hand tool in an exploded state, as viewed from above on the front side. [Figure 18] FIG. 2 is a perspective view of the hand tool in an exploded state, as viewed from below and rearward; [Figure 19] FIG. 13 is a diagram showing a case according to a modified example. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] <Embodiment> 1. Overall structure The cleaning device X is a so-called wet cleaning device capable of sucking air and liquid, although it can also be used without using liquid. 1, the cleaning device X includes a device main body 1, a hand tool 3, and a hose 5. The hose 5 connects the hand tool 3 and the device main body 1 in a detachable or non-detachable manner. The cleaning device X sucks up the liquid and dirt discharged from the hand tool 3 toward the surface to be cleaned into the device body 1 via the hose 5. For example, the liquid may be water, which can reduce running costs, water containing a detergent that enhances cleaning ability, an organic solvent (e.g., alcohol) with high cleaning ability, electrolyzed water generated by electrolysis of water, electrolyzed water containing hypochlorous acid, etc. The device main body 1 is provided with a tank unit 12 for storing the aspirated liquid, which may be detachable or non-detachable. In order to distinguish between the tank unit 12 or tank 501 for storing the aspirated liquid and the tank 703 for storing the liquid to be discharged, for the sake of convenience, the tank unit or tank for the aspirated liquid will be referred to as the "tank unit for suction" or the "tank for suction," and the tank for the liquid to be discharged will be referred to as the "tank for discharge." Here, for the sake of convenience, the side of the device main body 1 where the suction tank section 12 is present is defined as the front side, and the direction perpendicular to the front-rear direction and the up-down direction is defined as the left-right direction. When the suction tank section 12 is viewed from the front, the right side is defined as the right side in the left-right direction. Each part will be described in detail below.

[0009] 2. Device body (1) Overview 2, the device main body 1 includes a main body section 11 that sucks air and liquid, and a suction tank section 12 that stores the sucked liquid. The suction tank section 12 includes a suction tank 501. The suction tank 501 here is composed of a first tank 511 and a second tank 513. 3 and 4, the main body 11 includes an electric blower, an operation switch 13, a battery, a circuit, a suction flow path, a discharge flow path, etc. Here, the electric blower is provided as a blower unit 23, the operation switch 13 as an operation unit 25, the battery as a power supply unit 27, and the circuit as a circuit unit 29, all of which are provided in a case 31. The suction flow path is constituted by the case 31 and a suction flow path forming member 33, and the discharge flow path is constituted by the case 31 and a discharge flow path forming member 35. The flow path forming members 33 and 35 constitute the flow paths, and therefore are also flow path forming members.

[0010] (2) Case 2, the case 31 has a case body 41 that is open at the front, a handle 43 provided on the case body 41, and legs 45 provided on the case body 41. The suction tank 12 is accommodated in an accommodation space 47 that utilizes the opening of the case body 41, and units such as the blower unit 23 are provided behind the suction tank 12. The case 31 is made up of a plurality of cases, and in this embodiment, is made up of two cases, a first case 51 and a second case 151. The handle portion 43 is made up of the first case 51 and the second case 151. The electric system units, blower unit 23, power supply unit 27, and circuit unit 29, are attached to the first case 51 or the second case. Here, they are provided in the first case 51. This allows the wiring to be short and simple. Also, compared to when the electric system units are separated into the first case 51 and the second case 151, there is no risk of wiring breakage, and the electric system units can be installed more efficiently.

[0011] (2-1) Case 1 This will be explained with reference to FIG. 3 and FIG. The first case 51 is disposed, for example, on the front side. The first case 51 has a first peripheral wall portion 53 that is open in the front-rear direction, and a partition wall portion 55 that is provided in the middle of the first peripheral wall portion 53 in the front-rear direction and is perpendicular to the front-rear direction. The first case 51 has a first handle portion 57 constituting the front portion of the handle part 43, and a first leg portion 59 constituting the front portion of the leg part 45. The first handle portion 57 is provided on the upper wall portion 53a of the first circumferential wall portion 53, and the first leg portion 59 is provided on the lower wall portion 53b. This can improve the operability of the cleaning device X.

[0012] The following description will be mainly given with reference to FIG. The first case 51 has protruding parts 61 for positioning the suction tank part 12 on the right wall part 53c and the left wall part 53d of the first peripheral wall part 53. This makes it possible to restrict the movement of the suction tank part 12 in the left-right direction. The protruding parts 61 protrude toward the second tank 513 of the suction tank 501. In other words, the protruding parts 61 protrude inward in the left-right direction from the lower parts of the right wall part 53c and the left wall part 53d. The first case 51 has a tubular portion 63 extending toward the suction tank portion 12 on the partition wall portion 55. The tubular portion 63 has a cylindrical shape here, and the opening at the extending end serves as an inlet 62 through which the sucked air and liquid flow into the suction tank portion 12, and communicates with a through hole 64 (see FIG. 5(a)) of the partition wall portion 55. The cylindrical portion 63 is disposed on the upper side in the left-right direction together with the blower unit 23. Here, the cylindrical portion 63 is provided on the right side, which is one side in the left-right direction. The cylindrical portion 63 is provided with a packing 65 (see FIG. 2) for improving the sealing with the suction tank portion 12. In other words, the packing 65 is disposed between the attached suction tank portion 12 and the partition wall portion 55. This makes it possible to suppress liquid leakage, etc. The first case 51 has a locking means 67 for locking the attachment state of the suction tank 12. The suction tank 12 is locked using an engagement structure, and the locking means 67 is configured as a through hole with which the locking means 530, 531 of the suction tank 12 engage (fit). This makes it possible to prevent the suction tank 12 from coming off when the cleaning device X is carried or used. The locking means 67 is provided at the center in the left-right direction of the upper wall portion 53a and the lower wall portion 53b of the first peripheral wall portion 53.

[0013] The following description will be given mainly with reference to FIG. 4 and FIG. 5(a). The first case 51 has an attachment portion 71 for attaching the blower unit 23 on the rear surface (back surface) of the partition wall portion 55. The attachment portion 71 is provided on the upper side of the partition wall portion 55, on the left side, which is the other side in the left-right direction. The blower unit 23 can be attached using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. The attachment portion 71 is composed of a boss portion 73 extending rearward and a screw hole 75. There are a plurality of attachment portions 71, and as shown in FIG. 5(a), they are provided at two locations facing each other across the rotation axis (opening 69) of the blower unit 23.

[0014] The first case 51 has an attachment portion 77 on the partition wall portion 55 for attaching the suction flow path forming member 33. The suction flow path forming member 33 has a suction flow path first member 411 that forms a flow path together with the first case 51, and a suction flow path second member 413 for connecting to a connector 803 (see FIG. 1) of the hose 5. The attachment portion 77 mainly attaches the suction flow path first member 411. The suction flow path first member 411 can be attached using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. The attachment portion 77 is composed of a boss portion 79 extending rearward and a screw hole 81. Note that there are a plurality of attachment portions 77 along the suction flow path first member 411.

[0015] The first case 51 has a sealing portion 83 in the partition wall 55 to improve sealing with the suction flow path first member 411. The sealing portion 83 is provided at a portion that abuts against the open end (front end) of the suction flow path first member 411. The sealing portion 83 has a fitting structure that fits with the open end of the suction flow path first member 411. The sealing portion 83 is composed of a protrusion portion 85 that protrudes rearward along the open end of the suction flow path first member 411 and a groove portion 87 formed in the protrusion portion 85.

[0016] The first case 51 has an attachment portion 89 on the partition wall portion 55 for attaching the circuit unit 29. As shown in FIG. 8, the circuit unit 29 is disposed behind the suction flow path forming member 33 (the suction flow path first member 411). This can reduce the liquid from the suction flow path forming member 33 to the circuit unit 29 side (can prevent the liquid from transferring to the circuit unit 29 side during normal use without inverting the device upside down). The attachment portion 89 is provided on the upper side of the partition wall portion 55, on the right side, which is one side in the left-right direction. The circuit unit 29 can be attached using screws, resin rivets, an adhesive structure, an engagement structure, or the like, and an engagement structure is used here. As shown in Figs. 5 and 8, the mounting portion 89 includes a front support portion 91 that supports the board 353 of the circuit unit 29 from the front side, a rear support portion 93 that supports (engages) the board 353 from the rear side, an upper abutment portion 95 that abuts against the upper end surface of the board 353, and a lower abutment portion 97 that abuts against the lower end surface of the board 353. Here, plate-shaped portions 99 are provided on both the left and right sides of the downstream end side of the suction flow path forming member 33, and the front support portion 91, the rear support portion 93, the upper abutment portion 95, and the lower abutment portion 97 are provided on the plate-shaped portion 99. The plate-shaped portion 99 corresponds to the shape of the left and right end portions of the board of the circuit unit 29, and is arc-shaped here. The front support portion 91 is formed by a rib provided on the plate-shaped portion 99. The rear support portion 93 is formed by a bent portion that bends inward in the left and right direction from the rear end of the plate-shaped portion 99. The upper contact portion 95 and the lower contact portion 97 are formed by bent portions that bend inward in the left-right direction from the upper and lower ends of the plate-shaped portion 99. At least one of the pair of plate-shaped portions 99 (here, the right plate-shaped portion) extends rearward beyond the base plate 353 and comes into contact with the right end face of the base plate 353.

[0017] As shown in FIG. 4, the first case 51 has an attachment portion 101 for attaching the power supply unit 27 on the partition wall portion 55. As shown in FIG. 8, the power supply unit 27 is disposed behind the suction flow path forming member 33 (the suction flow path first member 411). This can reduce the liquid from the suction flow path first member 411 to the power supply unit 27 side (can prevent the liquid from being transmitted to the power supply unit 27 side during normal use without inverting the device up and down). As shown in FIG. 5(a), the attachment portion 101 is provided on the right side, which is the middle in the up-down direction of the partition wall portion 55 and one side in the left-right direction. The power supply unit 27 can be attached using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. 5(a) and 8, the mounting portion 101 is composed of a boss portion 103 extending rearward and a screw hole 105 formed in the boss portion 103. The power supply unit 27 is also attached to the mounting portion 107 of the suction flow path forming member 33.

[0018] As shown in FIG. 4, the first case 51 has an attachment portion 111 for attaching a part of the discharge flow path forming member 35 on the partition wall portion 55. The discharge flow path forming member 35 is a member that forms a discharge flow path with the first case 51 and the second case 151, and has a discharge flow path first member 461 located on the upstream side and a discharge flow path second member 463 located from the midstream to the downstream side. As shown in FIG. 7 and FIG. 8, the attachment portion 111 attaches the discharge flow path first member 461. The discharge flow path first member 461 can be attached using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. As shown in FIG. 5, the attachment portion 111 is composed of a boss portion 113 extending rearward and a screw hole 115. Note that there are a plurality of attachment portions 111 along the outer periphery of the discharge flow path first member 461.

[0019] As shown in Fig. 4, the first case 51 has a sealing portion 117 in the partition wall portion 55 for improving the sealing with the discharge flow path first member 461. The sealing portion 117 is provided at a portion that abuts against the open end of the discharge flow path first member 461. The sealing portion 117 has a fitting structure that fits with the open end of the discharge flow path first member 461. The sealing portion 117 is configured with a protruding portion that protrudes rearward along the open end of the discharge flow path first member 461, and the protruding portion fits into a groove portion that is a sealing portion 475 of the discharge flow path first member 461 (see Fig. 7).

[0020] As shown in Fig. 2, the first case 51 has a holding section 119 for holding the detection unit 37 (liquid level detection section 381) for detecting when the amount of liquid sucked into the suction tank section 12 has reached a predetermined amount. The holding section 119 is provided within the protruding section 61 that protrudes from the partition wall section 55. The holding section 119 holds a substrate 385 of the liquid level detection section 381. As shown in Fig. 5(a), the holding section 119 is composed of a groove-shaped holding section 121 that holds the substrate 385 of the liquid level detection section 381, and an engaging section 123 that extends rearward from the front wall section of the protruding section 61 and engages with the rear end surface of the substrate 385.

[0021] The first case 51 has a notch 125 for the suction flow path second member 413 of the suction flow path forming member 33 in the left wall portion 53d of the first peripheral wall portion 53. The suction flow path second member 413 is sandwiched between the first case 51 and the second case 151 in the front-rear direction, and the front half of the suction flow path second member 413 fits into the notch 125. This makes it possible to hold the suction flow path second member 413 without using any mounting fixtures such as screws. The first case 51 has a notch 127 in the right wall portion 53c of the first peripheral wall portion 53 for fitting a door 315 (see FIG. 8) of the power supply unit 27 therein.

[0022] As shown in FIG. 3, the first handle portion 57 is provided at the rear end of the upper wall portion 53a of the first circumferential wall portion 53, and is formed in an inverted U shape extending upward from the left and right ends. The first case 51 has an attachment portion 131 on the first handle portion 57 for attaching the operation unit 25. The operation unit 25 is clamped between the first handle portion 57 and the second handle portion 157. The attachment portion 131 is composed of a cutout portion 133 and a groove portion 135 formed in an end face of the cutout portion 133. A protrusion portion 375 on an end face of a plate-shaped handle plate portion 371 of the operation unit 25 is inserted (fitted) into this groove portion 135. 4, the first case 51 has a connecting portion 137 for connecting to the second case 151. The connecting can be achieved by using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. The connecting portion 137 is composed of a boss portion and a screw hole.

[0023] (2-2) Second Case This will be explained with reference to FIG. 3 and FIG. The second case 151 is disposed, for example, on the rear side. The second case 151 covers the opening at the rear end of the first case 51. The second case 151 has a second peripheral wall portion 153 corresponding to the first peripheral wall portion 53 of the first case 51, and a rear wall portion 155 provided at the rear end of the second peripheral wall portion 153 and closing the rear end of the second peripheral wall portion 153. The second case 151 has a second handle portion 157 constituting the rear portion of the handle portion 43, and a second leg portion 159 constituting the rear portion of the leg portion 45. The second handle portion 157 is provided on an upper wall portion 153a of the second circumferential wall portion 153, and the second leg portion 159 is provided on a lower wall portion 153b. This can improve the operability of the cleaning device X.

[0024] The following description will be given mainly with reference to FIG. 3 and FIG. 5(b). The second case 151 has an attachment portion 161 on the rear wall portion 155 for attaching the discharge flow path second member 463 of the discharge flow path forming member 35. The attachment portion 161 attaches the discharge flow path second member 463. The discharge flow path second member 463 can be attached using screws, resin rivets, adhesive structures, engagement structures, etc., and here, screws (not shown) are used. As shown in FIG. 5(b), the attachment portion 161 is composed of a boss portion 163 extending forward and a screw hole 165. Note that there are multiple attachment portions 161 along the outer periphery of the discharge flow path second member 463.

[0025] The second case 151 has a sealing portion 167 on the rear wall 155 to improve sealing with the discharge flow path second member 463. The sealing portion 167 is provided at a location that abuts against the open end of the discharge flow path second member 463. The sealing portion 167 has a fitting structure that fits with the open end of the discharge flow path second member 463. The sealing portion 167 is configured with a protruding portion that protrudes forward along the open end of the discharge flow path second member 463, and this protruding portion fits into a groove portion (see the enlarged view of FIG. 4) that is a sealing portion 493 on the open end face of the discharge flow path second member 463.

[0026] As shown in (b) of Fig. 5, the second case 151 has a support portion 171 on the rear wall portion 155, which supports the discharge flow path first member 461 of the discharge flow path forming member 35 attached to the first case 51. The support portion 171 is configured with a protruding portion (rib portion) protruding forward, and the protruding portion fits into a groove portion 484 (see the enlarged view of Fig. 4) of a supported portion 483 on the periphery of the rear wall portion 479 of the discharge flow path first member 461. This makes it possible to support the discharge flow path first member 461 while maintaining the airtightness of the discharge flow path forming member 35. The support portion 171 also functions as a positioning portion for the discharge flow path first member 461. Second case 151 has one or more (two in this example) support parts 173 on rear wall 155 that support blower unit 23. Support part 173 is configured from a protruding part that protrudes forward in an annular shape, and supported part 241 of blower unit 23 fits into the inside of the protruding part. Support part 173 is located inside support part 171 for exhaust flow path first member 461. This allows blower unit 23, which is a heavy object, to be supported by sharing the load between first case 51 and second case 151.

[0027] 3, the second case 151 has a support portion 175 on the rear wall portion 155 that supports the power supply unit 27. The support portion 175 supports the case 303 of the power supply unit 27 arranged in the left-right direction from below, and there are a plurality of support portions 175 spaced apart in the left-right direction. The support portion 175 extends in a plate shape, and the extending tip side abuts against the rear and bottom surfaces of the case 303 of the power supply unit 27. This allows the first case 51 and the second case 151 to share and support the load of the power supply unit 27, which is a heavy object.

[0028] The second case 151 has an exhaust port 177 that exhausts the air sucked by the blower unit 23. As shown in Figs. 3 and 4, the exhaust port 177 is provided corresponding to the exhaust port 457 of the exhaust flow path. Here, the exhaust port 177 is provided on the right side of the lower side. The exhaust port 177 is provided in three places, namely, the lower wall portion 153b, the right wall portion 153c, and the rear wall portion 155. Note that one exhaust port 177 is configured by a plurality of through holes.

[0029] The second case 151 has a cutout 185 for the suction flow path second member 413 of the suction flow path forming member 33 in the left wall portion 153d of the second peripheral wall portion 153. The second case 151 has a notch 187 in the right wall portion 153 c of the second peripheral wall portion 153 for receiving the door 315 of the power supply unit 27 .

[0030] The second handle portion 157 is provided at the front end of the upper wall portion 153a of the second circumferential wall portion 153, and is formed in an inverted U shape extending upward from the left and right ends. The second case 151 has an attachment portion 191 on the second handle portion 157 for attaching the operation unit 25. As shown in the enlarged view of Fig. 3, the attachment portion 191 is composed of a cutout portion 193 and a groove portion 195 formed on an end face of the cutout portion 193. A protrusion portion 375 on the end face of the handle plate portion 371 of the operation unit 25 is inserted (fitted) into the attachment portion 191. Second case 151 has a connecting portion 197 for connecting to the first case. For the connection, screws, resin rivets, adhesive structures, engagement structures, etc. can be used, and here screws (not shown) are used. Connecting portion 197 is composed of a boss portion and a screw hole. The boss portion is hollow, and a screw is inserted into it.

[0031] (3) Blower unit The blower unit 23 includes an electric blower 211 composed of a drive motor 201 and a blower fan 203 as shown in FIG. 10, a cover body 221 which covers the electric blower 211 and has an opening 249 (see FIG. 10) which connects the suction tank section 12 with the suction port 207 (see FIG. 10) of the electric blower 211 as shown in FIGS. 3, 4 and 10, and a valve body 251 which is in a closed state which closes the opening 249 when the electric blower 211 is stopped and is in an open state which opens the opening 249 when the electric blower 211 is operating.

[0032] (3-1) Electric blower 10(a), electric blower 211 includes a case 205 that supports drive motor 201 and blower fan 203. Electric blower 211 is disposed on the upper side of first case 51, on the left side in the left-right direction. The drive motor 201 and the blower fan 203 are disposed in the front-rear direction, with the drive motor 201 located on the rear side. In other words, the rotation shaft of the electric blower 211 is parallel to the front-rear direction. Case 205 has a hollow cylindrical shape (hollow cylinder shape) and its central axis is parallel to the front-rear direction. Case 205 has suction port 207 in its front wall for sucking in air during operation, and cutout portion 209 in its peripheral wall for discharging the sucked air. Protrusion portion 213 protruding rearward in a rectangular ring shape from rear wall portion 212 of case 205 fits into through hole 237 in rear wall portion 236 of cover body 221, as shown in Fig. 4. In this way, electric blower 211 is attached to cover body 221 in a positioned state.

[0033] (3-2) Cover body 10, the cover body 221 has a first cover body 223 and a second cover body 225. The cover body 221 has a stepped hollow columnar shape (hollow cylindrical shape) that tapers toward the front side. (3-2-1) First cover body The first cover body 223 has a front cover portion 227 that protrudes (extends) forward from the opening 69 of the partition wall portion 55 of the first case 51 , and a rear cover portion 229 that is disposed on the rear side of the partition wall portion 55 . An opening 249 is provided on the tip side of the front cover part 227, that is, on the front wall part 231. The protruding tip of the front cover part 227 is located above the liquid level in the suction tank part 12 when the cleaning device X is in a state where it is tilted to the rear side (with the front side facing up). This makes it possible to suppress the inflow of liquid from the opening 249 even if the cleaning device X is tilted. Note that even if the amount of liquid is such that the detection unit 381 described later detects full, it is preferable that the protruding tip of the front cover part 227 is located above the liquid level in the suction tank part 12. The opening 249 has a function of allowing air in the suction tank 501 of the suction tank part 12 to flow out to the main body part 11 side, and is therefore also called an "outlet" and is designated by the symbol "249".

[0034] As shown in Fig. 4, the first cover body 223 has an attachment portion 230 for attaching the blower unit 23 to the first case 51. The attachment portion 230 is composed of a bottomed cylindrical boss portion on the outer circumferential surface of the rear cover portion 229 and a through hole formed in the bottom portion of the boss portion. A screw (not shown) that passes through the through hole is screwed into a screw hole 75 (see Fig. 5(a)) of the attachment portion 71 of the first case 51. 10, the front cover portion 227 is provided with a packing 66 for improving the sealing with the suction tank portion 12. In other words, the packing 66 is disposed between the attached suction tank portion 12 and the partition wall portion 55. This can prevent liquid leakage, etc. Cover body 221 is attached from the rear with the front wall portion of rear cover part 229 abutting partition wall part 55. This improves airtightness. Electric blower 211 is housed in an internal space formed by rear cover part 229 and second cover body 225.

[0035] (3-2-2) Second cover body As shown in FIG. 4, the second cover body 225 has an exhaust port 234 in a peripheral wall portion 232 thereof, and has through holes 237 and 239 and a supported portion 241 in a rear wall portion 236 thereof. A protruding portion 213 (see FIG. 10(a)) at the rear end of the electric blower 211 is fitted into the through hole 237. The through hole 239 is for wiring the drive motor 201. The supported portion 241 protrudes backward in a cylindrical or columnar shape, and is supported by being fitted into an annular support portion 173 (see FIG. 5(b)) formed on the rear wall portion 155 of the second case 151. This ensures a gap for wiring between the blower unit 23 and the rear wall portion 155 of the second case 151.

[0036] As shown in Fig. 3, the first cover body 223 and the second cover body 225 have connecting parts 233, 235 that connect both covers. For the connection, screws, resin rivets, adhesive structures, engagement structures, etc. can be used, and here, screws (not shown) are used. The connecting part 233 is provided on the rear cover part 229 of the first cover body 223, and the connecting part 235 is provided on the second cover body 225. One of the connecting parts 233, 235 has a screw hole (hole) in a solid boss portion, and the other has a through hole in the bottom portion of the bottomed cylindrical boss portion.

[0037] (3-3) Valve body The following description will be mainly given with reference to FIG. Valve body 251 is provided so as to be able to open and close opening 249 of cover body 221. Valve body 251 is biased by biasing means 253 in a direction to close opening 249, and is brought into an open state by the action of suction force of electric blower 211. The valve body 251 is provided on a rod 255 inserted into the cover body 221 through an opening 249 . In other words, the blower unit 23 is provided with a valve body 251 that opens and closes the opening 249, a rod 255 to which the valve body 251 is attached that is supported so as to be movable in the direction in which the valve body 251 opens and closes relative to the opening 249, and a biasing means 253 that biases the valve body 251 toward the closed state while the electric blower 211 is stopped, which are provided in the cover body 221. Valve body 251 has a shape that fits into opening 249. Opening 249 has a circular shape, and valve body 251 has a truncated cone shape. Valve body 251 is disposed inside cover body 221. Valve body 251 presses opening 249 from the rear side to the front side while electric blower 211 is stopped, and moves rearward by suction (away from opening 249) while electric blower 211 is operating. The rod 255 has a flange portion 261 and a shaft portion 263, and is provided so that the flange portion 261 is located outside (on the front side) of the cover body 221. A circumferential groove portion 265 is provided on the tip side of the shaft portion 263, and the valve body 251 is attached to the groove portion 265. The rod 255 is supported by a support portion 238 provided on the front wall portion 231 of the cover body 221 so as to be movable in the front-rear direction, as shown in FIG. 10, the biasing means 253 is composed of a spring disposed between the flange portion 261 of the rod 255 and the cover body 221, specifically between the flange portion 261 and the support portion 238 (see the enlarged view of FIG. 2) of the cover body 221. Here, as the biasing means 253, a tension spring that pulls the valve body 251 forward (toward the opposite side to the electric blower 211) may be used.

[0038] (4) Power supply unit The following description will mainly use FIG. The power supply unit 27 includes a battery 301 and a case 303. The battery 301 is insertable into and removable from the case 303. As shown in Fig. 8, the power supply unit 27 is provided below the circuit unit 29 and behind the suction flow path forming member 33. The power supply unit 27 is disposed on the lower side of the first case 51. This improves stability when placed on a horizontal surface, even though the blower unit 23 is disposed on the upper side of the first case 51. (4-1) Battery The battery 301 is a rechargeable battery, and can be charged by a charger (not shown). The battery 301 has, for example, an elongated shape. The battery 301 has a step 305 on the tip side of the battery 301 inserted into the case 303, and a connection hole 307 for connecting to a charging terminal and a connection terminal 323 of the case 303.

[0039] (4-2) Case The case 303 has a lower case 311 and an upper case 313, and is provided with a door 315 for opening and closing an insertion opening for the battery 301. The lower case 311 has a lower housing section 317 that houses approximately the lower half of the battery 301, and a tip housing section 319 that houses a tip section 309 of the battery 301. The lower case 311 has a step section 321 between the lower housing section 317 and the tip housing section 319, and a connection terminal 323 is provided in the step section 321. The connection terminal 323 is inserted into the connection hole 307 of the battery 301 and connected to the terminal of the battery 301. The connection terminal 323 penetrates the step section 321 and is connected to a cable 325 that connects to the circuit unit 29 outside the case 303. The case 303 has a detection section 327 that detects the attachment of the battery 301. Here, the detection section 327 is provided in a recessed section 329 that recesses downward from the bottom part of the lower housing section 317 of the lower case 311. The detection result of the battery 301 by the detection section 327 is output to the circuit unit 29. The detection unit 327 uses a contact type leaf spring sensor.

[0040] The upper case 313 has an upper housing portion 331 that houses approximately the upper half of the battery 301 . Door 315 is plate-shaped and is provided at the ends of lower case 311 and upper case 313 so as to be able to open and close. Here, door 315 is supported so as to be able to rotate about a vertical axis. Specifically, door 315 has through holes 335 in a pair of upper and lower rib portions 333, and a convex portion 337 of lower case 311 and a convex portion 339 of upper case 313 fit into said through holes 335.

[0041] As shown in FIG. 11, the lower case 311 and the upper case 313 have connecting parts 341, 343 that connect the two cases. For the connection, screws, resin rivets, adhesive structures, engagement structures, etc. can be used, and here, an engagement structure is used. The connecting part 341 is provided on the lower case 311, and the connecting part 343 is provided on the upper case 313. One of the connecting parts 341, 343 has a convex part, and the other has a concave part or a through hole with which the convex part engages. Here, the connecting part 343 is a convex part provided on the upper case 313, and the connecting part 341 is a through hole provided in an engagement piece 342 extending upward from the lower case 311. The connecting parts 341, 343 are provided on the opposing end surfaces of the lower case 311 and the upper case 313, and a plurality of them (for example, two) are provided at intervals along the longitudinal direction of the case 303.

[0042] At the joining portion between lower case 311 and upper case 313, lower case 311 has ridge portion 348 protruding upward, and upper case 313 has groove portion 349, respectively, to improve airtightness. The fitting of ridge portion 348 and groove portion 349 also functions as a position restriction. 8, the case 303 has mounting parts 345, 347 for mounting the power supply unit 27 on the first case 51 side, on the lower case 311 and the upper case 313. The mounting part 345 is composed of a protruding part 344 protruding downward from the lower case 311 and a through hole 346 provided in the protruding part 344, and a screw inserted through the through hole 346 is screwed into a screw hole which is the mounting part 101 of the first case 51 or the mounting part 107 of the suction flow path forming member 33. The mounting part 347 is composed of a protruding part 344 protruding upward from the upper case 313 and a through hole 346 provided in the protruding part 344, and a screw inserted through the through hole 346 is screwed into a screw hole which is the mounting part 101 of the first case 51.

[0043] (5) Detection unit The detection unit 37 has a liquid level detection section 381 that detects the level of the liquid stored in the suction tank section 12, and an attachment detection section 391 that detects the attachment state of the suction tank section 12. (5-1) Liquid level detector The liquid level detection unit 381 detects a float 387 that is disposed in the suction tank unit 12 and moves up and down according to the liquid level. Specifically, a magnet is housed in the float 387, and a sensor 383 that detects the magnetic field of the magnet in the float 387 is provided on a substrate 385, as shown in Figs. As shown in Figure 13(a) and Figure 14(a), the float 387 is disposed on the left side in the left-right direction. Therefore, the liquid level detection unit 381 is disposed on the left side in the left-right direction. This can improve the detection accuracy. 2, the liquid level detection unit 381 is provided inside the left-side projection 61. The projection 61 has a function of positioning the suction tank unit 12 in the left-right direction, so that the distance between the suction tank unit 12 (float 387) and the liquid level detection unit 381 can be kept substantially constant. This can further improve the detection accuracy.

[0044] (5-2) Wearing detection unit The attachment detector 391 detects the "attached state" when the suction tank 12 is attached to the accommodation space 47 of the main body 11, and detects the "non-attached state" when the suction tank 12 is not attached. The attachment detector 391 is provided at a position facing the suction tank 12 when the suction tank 12 is inserted into the accommodation space 47, and is provided on the partition wall 55 of the first case 51 as shown in FIG. 2. The attachment detector 391 uses, for example, a contact type button switch. The attachment detector 391 uses a boss hole 393 for the boss portion 103 constituting the attachment portion 101 for attaching the power supply unit 27 to the first case 51.

[0045] (6) Circuit unit The circuit unit 29 includes a power generation section that receives power from the power supply unit 27 and generates driving power for driving the operation unit 25, the blower unit 23, and the detection unit 37, and a control section that controls the driving of the blower unit 23. As shown in FIGS. 3 and 4, the circuit unit 29 includes a plurality of electronic components 351 that constitute a power generating section and a control section, a substrate 353, and a connection terminal 355. For example, the control unit stops driving the air blowing unit 23 when a signal indicating that the volume of liquid sucked into the suction tank section 12 has reached a threshold value is input from the detection unit 37 (liquid level detection section 381), or drives / stops the air blowing unit 23 when a signal indicating to operate / stop the device is input from the operation unit 25. When a signal indicating to operate / stop the device is input from the operation unit 25, the control unit will not drive the blower unit 23 if there is a signal from the detection unit 37 (attachment detection unit 391) indicating that the suction tank section 12 is not attached, i.e., that it is in an "unattached state" (or if there is no signal indicating that it is in an "attached state"). When power supply unit 27 is provided with detection unit 327 that detects insertion of battery 301, the control unit drives blower unit 23 when a signal indicating that the device is to be operated is input from operation unit 25 and a signal indicating that battery 301 is inserted is input from detection unit 327. If battery 301 is not completely inserted, detection unit 327 is in the off state, and blower unit 23 stops operating. 5 and 8, when viewed from the rear, the circuit unit 29 is disposed in the upper part of the case 31, on the opposite side in the left-right direction to the blower unit 23. The rotation shaft of the blower unit 23 extends in the front-rear direction. This allows the left-right space for the blower unit 23 to be effectively utilized. The circuit unit 29 is attached to the first case 51 by attaching both left and right ends of the board 353 to a pair of attachment portions 89 of the first case 51. At this time, the circuit unit 29 is disposed behind the suction flow path forming member 33 as shown in Fig. 8. This allows the space on the right side of the blower unit 23 and behind the suction flow path forming member 33 to be effectively utilized.

[0046] (7) Operation unit This is explained using FIG. 3 and FIG. Operation unit 25 includes an operation switch 13 for turning the power on / off, an indicator light 14 for indicating the ON state, etc. Here, it includes a handle plate portion 371 constituting a part of the handle portion 43 of case 31, a board on which operation switch 13 and indicator light 14 are mounted, and a case 373 supporting the board. Case 373 is attached to handle plate portion 371 with screws or the like, with operation switch 13 and indicator light 14 exposed on handle plate portion 371. The operation unit 25 is incorporated into the handle portion 43 by attaching the handle plate portion 371 to the attachment portions 131, 191 of the handle portion 43. Specifically, the handle plate portion 371 is inserted into the cut portion 133 of the first handle portion 57 and the cut portion 193 of the second handle portion 157, and the protrusion portion 375 of the handle plate portion 371 fits into the groove portions 135, 195 of the cut portions 133, 193.

[0047] (8) Suction flow path (suction flow path forming member) (8-1) Suction channel As shown by the arrow in FIG. 12(a), the suction flow path 401 is a flow path through which air and liquid sucked from the hand tool 3 flow to the suction tank 12 in the device body 1. The suction port 407 of the suction flow path 401 is located below the through hole 64 of the first case 51 that communicates with the suction tank 12. This makes the suction flow path 401 longer, thereby reducing the noise of the electric blower 211. The suction flow path 401 passes through the lower part of the case 31 on the left side in the left-right direction, the center in the left-right direction, and the upper part on the right side in the left-right direction. In other words, the suction flow path 401 includes a suction first flow path 403 that extends from the left side to the right side in the left-right direction, and a suction second flow path 405 that extends from the downstream end of the suction first flow path 403 to the upper side on the right side in the left-right direction. The suction second flow path 405 is inclined upward with respect to the suction first flow path 403. The first suction flow path 403 and the second suction flow path 405 are inclined at an angle of 100 to 120 degrees, which can reduce the suction loss (resistance). The suction flow path 401 may include a third suction flow path 409 extending upward from the upstream end of the first suction flow path 403, in addition to the first suction flow path 403 and the second suction flow path 405. When the third suction flow path 409 is included, the suction port 407 is formed at the upstream end of the third suction flow path 409. By having the third suction flow path 409, it is possible to prevent liquid remaining in the first suction flow path 403 or the second suction flow path 405 from flowing back from the suction port 407. The suction port 407 of the suction flow path 401 is provided in the left-right direction on the opposite side to the insertion port (door 315) of the battery 301. This separates the suction port 407 from the insertion port of the battery 301, and prevents the sucked liquid from flowing toward the insertion port.

[0048] (8-2) Suction flow path forming member As shown in FIGS. 3, 4 and 6, the suction flow path 401 is formed by the first case 51 and the suction flow path forming member 33. The suction flow path forming member 33 has a suction flow path first member 411 attached to the first case 51 and a suction flow path second member 413 attached to (connected to) the suction flow path first member 411.

[0049] (8-2-1) First suction passage member As shown in FIG. 6, the suction flow path first member 411 integrally includes a main flow path portion 415 arranged along the partition wall portion 55 of the first case 51, a connection flow path portion 417 for connecting to the suction flow path second member 413, and a connecting flow path portion 419 that connects the main flow path portion 415 and the connection flow path portion 417. The main flow path section 415 has a semicircular (semi-elliptical) cross section perpendicular to the flow direction of the liquid or the like. The suction flow path first member 411 has, at the end on the opening side of the main flow path section 415, a protruding portion 421 that fits into the groove portion 87 of the sealing portion 83 of the first case 51, and an abutting portion 423 that abuts against the first case 51 when the protruding portion 421 is fitted. The abutting portion 423 is bent from the base of the protruding portion 421 to the opposite side to the flow path. This can improve the sealing performance. The protruding portion 421 and the abutting portion 423 are endlessly formed along the flow path. The suction flow path first member 411 has a plurality of mounting portions 425 for mounting to the first case 51. The mounting portions 425 have a boss portion 427 provided at the end on the opening side, and a through hole 429 provided in the boss portion 427. A screw (not shown) is inserted from the rear through the through hole 429 and screwed into a screw hole 81, which is the mounting portion 77 of the first case 51. The connection flow path section 417 is cylindrical and fits with the downstream end 437 of the suction flow path second member 413. Here, the connection flow path section 417 fits (outside) with the end of the suction flow path second member 413. The suction flow path first member 411 (connection flow path section 417) has a lock section 431 for preventing the suction flow path second member 413 from coming off. For the lock, a screw, a resin rivet, an adhesive structure, an engagement structure, etc. can be used, and here, an engagement structure is used. Specifically, the lock section 431 is composed of an "L" shaped groove portion that extends along the cylindrical axis and then bends in the circumferential direction.

[0050] (8-2-2) Suction flow passage second member 6, the suction flow path second member 413 has an inner flow path portion 433 disposed inside the first case 51, and an outer flow path portion 435 disposed outside the first case 51 and connected to the hose 5. Here, the inner flow path portion 433 and the outer flow path portion 435 are substantially perpendicular to each other and have an "L" shape as a whole. This makes it possible to suppress backflow of liquid accumulated in the inner flow path portion 433 toward the liquid side hose 5. The inner flow passage portion 433 has a cylindrical shape extending in the left-right direction, and its end portion 437 is inserted into the connection flow passage portion 417 of the suction flow passage first member 411. The suction flow passage second member 413 has a lock portion 439 that prevents the suction flow passage second member 413 from coming off from the suction flow passage first member 411. The lock portion 439 is composed of a convex portion. When the suction flow passage second member 413 is connected to the suction flow passage first member 411, the convex portion moves in the cylindrical axial direction (left-right direction) through the "L"-shaped groove portion of the connection flow passage portion 417, and then moves so as to bend in the circumferential direction (the suction flow passage second member 413 rotates around the cylindrical axis after being inserted into the suction flow passage first member 411 in the left-right direction). As a result, the convex portion engages with the groove portion, and the movement (coming off) in the cylindrical axial direction is spun. The outer flow path portion 435 has a cylindrical shape extending in the vertical direction, and a connector 803 of the hose 5 is connected to a connection portion 441 at its end. Here, the connector 803 of the hose 5 is fitted (internal fit). The suction flow path second member 413 has a lock portion 443 for preventing the connector 803 from coming off. For the lock, a screw, a resin rivet, an adhesive structure, an engagement structure, etc. can be used, and here, an engagement structure is used. The lock portion 443 is formed, for example, of an "L" shaped groove portion that extends along the cylindrical axis and then bends in the circumferential direction. The suction flow path second member 413 has a plate-like portion 445 that spans and connects the inner flow path portion 433 and the outer flow path portion 435. The suction flow path second member 413 is attached by being sandwiched between the first case 51 and the second case 151 in a state in which the suction flow path second member 413 fits into the notch 125 of the first case 51 and the notch 185 (see FIG. 4) of the second case 151. At this time, the plate-like portion 445 is also sandwiched, and the suction flow path second member 413 does not rotate around the cylindrical axis relative to the suction flow path first member 411, and does not come off from the suction flow path first member 411 even without using a fixing tool such as a screw.

[0051] (9) Exhaust flow path (exhaust flow path forming member) (9-1) Exhaust flow path 12(b), exhaust flow path 451 is a flow path through which air sent out from blower unit 23 is exhausted to the outside of device body 1 via exhaust port 177. In other words, exhaust flow path 451 is a flow path through which exhaust air from electric blower 211 passes. Discharge flow path 451 passes through the upper part of case 31 on the left side in the left-right direction, the lower part on the left side in the left-right direction, and the lower part on the left side in the left-right direction. That is, when viewed from the rear, discharge flow path 451 is "L" shaped. Discharge outlet 457 of discharge flow path 451 is on the lower side on the left side in the left-right direction and is located below electric blower 211. In other words, discharge outlet 457 is disposed on the bottom (lower wall portion 53b) side of first case 51. Discharge flow path 451 has an inlet 456 on the upper side on the left side in the left-right direction, in the periphery of electric blower 211. The discharge flow path 451 includes a first discharge flow path 453 extending from an upper portion to a lower portion on the left side in the left-right direction, and a second discharge flow path 455 extending from a downstream end of the first discharge flow path 453 toward the right side in the left-right direction. The discharge flow path 451 has a bent flow path 454 between an upstream end (end on one side) of the first discharge flow path 453 and a downstream end (end on the other side) of the second discharge flow path 455. The discharge port 457 of the discharge flow path 451 is provided on the opposite side in the left-right direction to the suction port 407 of the suction flow path 401. This separates the discharge port 457 of the discharge flow path 451 from the suction port 407 of the suction flow path 401, preventing the sucked liquid from entering the discharge port 457 of the discharge flow path 451 and scattering the liquid due to exhaust.

[0052] (9-2) Suction flow path forming member As shown in FIGS. 3 and 4, the discharge flow path 451 is formed by the second case 151 and the discharge flow path forming member 35. The discharge flow path forming member 35 has a discharge flow path first member 461 attached to the first case 51, and a discharge flow path second member 463 connected to the discharge flow path first member 461 and attached to the second case 151. Note that, here, the discharge flow path first member 461 is included in the discharge flow path forming member 35, but may be a covering member (hood) that covers the rear end side of the blower unit 23. In this case, the discharge flow path forming member 35 is composed of the discharge flow path second member 463.

[0053] (9-2-1) Discharge flow passage first member 3, 4, and 7, the discharge flow path first member 461 has a box shape with an open front side. As shown in (c) of Fig. 8, the discharge flow path first member 461 has a through hole 467 in a lower wall portion 465. Air from the electric blower 211 flows into the discharge flow path second member 463 through the through hole 467. 7, the discharge flow path first member 461 has an attachment portion 469 for attaching the discharge flow path first member 461 to the first case 51. The attachment portion 469 is composed of a flange portion 471 and a through hole 473 formed in the flange portion 471. A screw inserted through the through hole 473 screws into the screw hole 115 of the attachment portion 111 of the first case 51. Discharge flow path first member 461 has a sealing portion 475 for improving the sealing with first case 51. Sealing portion 475 is configured by a groove portion (see the enlarged view in FIG. 7) provided on the end face on the opening side (front side), and fits with a protruding portion of sealing portion 117 of first case 51.

[0054] The discharge flow path first member 461 has a connection portion 477 for connecting (attaching) to the discharge flow path second member 463. The connection can be made by using a screw, a resin rivet, adhesive, an engagement structure, or the like, and here, an engagement structure is used. Specifically, the discharge flow path second member 463 slides from the rear relative to the discharge flow path first member 461 to engage with it. As shown in the enlarged view of FIG. 4 and FIG. 8(c), the connection portion 477 is configured by a groove portion 478 provided around the through hole 467, and when the connection portion 477 is viewed from below, it has a U-shape with an open rear side. As shown in Fig. 4, discharge flow path first member 461 has a through hole 481 in rear wall portion 479. Discharge flow path first member 461 has a supported portion 483 on the periphery of rear wall portion 479 for being supported by second case 151. As shown in the enlarged view of Fig. 4, supported portion 483 is composed of a protrusion portion 482 protruding rearward from the periphery and a groove portion 484 formed in protrusion portion 482, and the protrusion portion (see Fig. 5) of support portion 171 of second case 151 fits into the groove portion of supported portion 483.

[0055] (9-2-2) Exhaust passage second member 3 and 6, the discharge flow path second member 463 has a first flow path portion 485 extending in the up-down direction, and a second flow path portion 487 extending in the left-right direction from the lower end of the first flow path portion 485. The discharge flow path second member 463 has a U-shape that is open at the rear in a cross section perpendicular to the flow direction of the air from the electric blower 211. Note that the second flow path portion 487 has discharge ports 457 provided in the left wall portion and the lower wall portion. 9, discharge flow path second member 463 has attachment portions 489 for attaching discharge flow path second member 463 to second case 151 in first flow path portion 485 and second flow path portion 487. Attachment portion 489 is configured with a boss portion 490 and a through hole 491 formed in boss portion 490, and a screw passing through through hole 491 screws into threaded hole 81 of attachment portion 161 of second case 151. Discharge flow path second member 463 has sealing portion 493 in first flow path portion 485 and second flow path portion 487, which improves the sealing performance between second case 151. Sealing portion 493 is formed by a groove portion on the end face on the opening side as shown in the enlarged view of Fig. 4, and fits with a protruding portion of sealing portion 167 of second case 151 as shown in Fig. 9. The discharge flow path second member 463 has a connection portion 495 for connecting (attaching) to the discharge flow path first member 461. As shown in Fig. 9, the connection portion 495 is configured by a protruding portion provided on the outer periphery of the first flow path portion 485, and as shown in the enlarged view of Fig. 4, the protruding portion (495) is inserted into a groove portion 478 of a connection portion 477 of the discharge flow path first member 461. As shown in FIG. 12(a), the discharge flow path forming member 35 has a receiving portion 497 between the electric blower 211 and the power supply unit 27. Here, the receiving portion 497 is provided on the discharge flow path second member 463. As shown in FIG. 9, the receiving portion 497 is curved so as to be convex downward. This makes it possible to prevent the liquid that has flowed (including dripping and flowing down) to the receiving portion 497 from proceeding to the power supply unit 27 even if the liquid leaks out from between the connection portion 477 and the discharge flow path second member 463. In addition, the liquid received by the receiving portion 497 can further drip onto the first case 51 side and be discharged to the outside from a drainage hole (not shown) of the case 31. The drainage hole is disposed directly below the receiving portion 497.

[0056] (10) Suction tank section 2, the suction tank section 12 has at least a suction tank 501 for storing the liquid suctioned by the main body section 11, a first opening 503 for receiving the suctioned liquid and air, and a second opening 505 for discharging the air inside the suction tank 501. The suction tank 501 has a rectangular shape that is long in the left-right direction in a cross section perpendicular to the up-down direction. The suction tank section 12 has a storage section 541 that stores a float 387 for detecting the liquid level of the suction tank 501 so that the float 387 can move up and down. This allows the float 387 to move up and down at a constant rate according to the amount of stored liquid, and the liquid level can be detected accurately. 13, the suction tank portion 12 extends in a direction perpendicular to the direction in which the first opening 503 and the second opening 505 are arranged (left-right direction), and has partition wall portions 551, 553, and 555 that separate the first opening 503 and the second opening 505 in the suction tank 501. As a result, even if splashes of the liquid sucked by the electric blower 211 occur, the presence of the partition wall portions 551, 553, and 555 can prevent the splashes from flowing into the electric blower 211 side. The suction tank 12 has a receiving unit 571 that receives the liquid that has flowed in from the inlet 62 of the main body 11. As a result, the liquid sucked in by the electric blower 211 is temporarily received in the receiving unit 571, so that the momentum of the liquid is reduced and water splashes are less likely to occur, making it possible to suppress water splashes from flowing into the electric blower 211 side.

[0057] (10-1) Suction tank 13, the suction tank 501 includes a first tank 511 and a second tank 513. The first tank 511 is located on the upper side of the suction tank 501, and the second tank 513 is located on the lower side of the suction tank 501. The aspirated liquid is mainly stored in the second tank 513, and the second tank 513 constitutes a storage section of the suction tank 501. The second tank 513 is configured to be detachable from the first tank 511. To make it detachable, a screw structure or an engagement structure can be used, and here, an engagement structure (buckle) is used. The first tank 511 and the second tank 513 have either an engaged portion or an engaging portion. Here, as shown in FIG. 14, the second tank 513 has a convex portion 515 at the end (upper end) on the opening side, and the first tank 511 has a convex portion 517 at the end (lower end) on the opening side that engages with the lower surface of the convex portion 515. The engaging convex portion 517 is provided on an engaging tool 519 that can rotate around a rotation axis in the left-right direction or the front-rear direction. The engaging portion and the engaged portion are provided at the middle of the front-rear wall portion and the left-right wall portion, and there are four in total.

[0058] The first tank 511 and the second tank 513 have a sealing portion for improving the sealing performance when they are attached. Here, a fitting structure is used. As shown in FIG. 13, the first tank 511 has a fitting groove 521 that opens downward, and an end 523 on the opening side of the second tank 513 fits into the fitting groove 521. The fitting groove 521 is formed by an extension part 525 that extends downward in an "L" shape from the outer surface of the end on the opening side, and an end 527 on the opening side. The end 523 on the opening side of the second tank 513 is configured in a stepped shape that spreads outward, and a packing 529 is arranged between the first tank 511 and the second tank 513.

[0059] The suction tank 501 is configured so as to be insertable and removable from the front side of the main body 11. The suction tank 501 has locking means 530, 531 in the first tank 511 and the second tank 513 for locking the inserted state. As shown in FIG. 13, the locking means 530 of the first tank 511 comprises a first movable body 534 supported on the upper side so as to be vertically movable and having an engaging protrusion 532 at its upper end, and a biasing means 536 that biases the first movable body 534 upward, and the engaging protrusion 532 engages with a through hole which is the locking means 67 of the upper wall portion 53a of the first case 51 shown in FIG. 2. As shown in FIG. 13, the locking means 531 of the second tank 513 includes a second movable body 535 supported on the lower side so as to be movable up and down and having an engaging protrusion 533 at its lower end, and a biasing means 537 that biases the second movable body 535 downward, and the engaging protrusion 533 engages with a through hole, which is the locking means 67, of the lower wall portion 53b of the first case 51 shown in FIG. 2.

[0060] (10-2) First opening and second opening 2, the first opening 503 communicates the space in the suction tank 501 with the inlet 62 of the main body 11. The second opening 505 communicates the space in the suction tank 501 with the outlet 249 of the main body 11. The inlet 62 of the main body 11 allows the sucked air and liquid to flow from the main body 11 side into the suction tank 501, and the outlet 249 of the main body 11 allows the air in the suction tank 501 to flow out to the main body 11 side. The inlet 62 and the outlet 249 are provided on both sides of the main body 11 in the left-right direction when viewed from the front. Here, first opening 503 receives cylindrical portion 63 of main body 11 therein, thereby communicating inlet 62 of cylindrical portion 63 with the interior of suction tank 501. Second opening 505 receives front cover portion 227, in which outlet 249 of main body 11 is provided, therein, thereby communicating with suction port 207 (see FIG. 10) of electric blower 211.

[0061] (10-3) Storage unit 13(a) and 14(a), the storage section 541 is provided on the opposite side to the first opening 503 on the inlet 62 side in the left-right direction. In other words, the storage section 541 is provided on the left wall section 568 side of the second tank 513. As a result, the liquid level tends to be stable at a position away from the inlet 62 because it is away from the position where the liquid drips, and the liquid level can be accurately detected. The container 541 is provided in a corner portion between the left wall portion 568 and the rear wall portion 563, and has a groove portion 543 extending in the vertical direction. This allows liquid to flow into the container 541. Furthermore, by providing the container 541 in the corner portion on the rear wall portion 563 side, the distance between the float 387 and the main body portion 11 (detection unit 37) becomes short, and the float 387 can be detected with high accuracy. The accommodating portion 541 is composed of an L-shaped rib 545 that bends into an L shape from the left wall portion 568, and a vertical rib 547 that extends forward from the rear wall portion 563, and a groove portion 543 is formed between the L-shaped rib 545 and the vertical rib 547.

[0062] (10-4) Partition wall As shown in (a) of FIG. 13, the partition wall portions 551, 553, and 555 extend in the vertical direction and connect to an upper wall portion 557 of the first tank 511 and a lower wall portion 559 of the second tank 513. The partition wall portions 551, 553, and 555 are composed of first partition wall portions 551A, 553A, and 555A of the first tank 511 and second partition wall portions 551B, 553B, and 555B of the second tank 513. The lower ends of the first partition wall portions 551A, 553A, and 555A and the upper ends of the second partition wall portions 551B, 553B, and 555B fit together in the vertical direction. This allows the partition wall portions 551, 553, and 555 to be formed long in the vertical direction. Moreover, the partition wall portions 551, 553, and 555 can be configured to be equivalent to one plate with no gaps above and below. 14, the first partition wall portion 551A extends forward from a rear wall portion 561 of the first tank 511, and the second partition wall portion 551B extends forward from a rear wall portion 563 of the second tank 513. The first and second partition wall portions 551A, 551B do not reach front wall portions 565, 567 of the first and second tanks 511, 513. The first partition wall portions 553A, 555A extend rearward from a front wall portion 565 of the first tank 511, and the second partition wall portions 553B, 555B extend rearward from a front wall portion 567 of the second tank 513. The first partition wall portions 553A, 555A and the second partition wall portions 553B, 555B do not reach rear wall portions 561, 563 of the first and second tanks 511, 513. These partition walls 551, 553, 555 allow the sucked liquid to be stored at approximately the same liquid level in the suction tank 501, and the floating position of the float 387, which will be described later, can be stabilized. The front end of the partition wall portion 551 is located forward of the rear ends of the partition wall portions 553 and 555. This makes it possible to slow down the flow speed of the liquid flowing in from the inlet 62.

[0063] (10-5) Receiving unit The receiving unit 571 is provided in the suction tank 501. The receiving unit 571 prevents the inflowing liquid from dripping or flowing directly into the liquid in the suction tank 501. The receiving unit 571 is provided so as to be removable from the suction tank 501, as shown in Fig. 14. This allows the receiving unit 571 to be removed for cleaning. Furthermore, removing the receiving unit 571 also makes it easier to clean the inside of the suction tank 501. As shown in FIG. 15, the receiving unit 571 includes a receiving tool (receiving portion) 585 that receives the liquid that has flowed into the suction tank 501, and a lid 577 (lid portion) that is disposed opposite the inlet 62.

[0064] As shown in Figure 15, the cover 577 has at least an opposing portion 573 that faces the inflow direction of the liquid relative to the inlet 62, and an extension portion 575 that extends from a portion of the opposing portion 573 below the portion where the flowing in liquid hits, toward the inlet 62. Here, the facing portion 573 is formed by a plate-like portion 579, and the extending portion 575 is formed by the lower side of the peripheral wall of a cylindrical portion 581 extending rearward from the plate-like portion 579. The lid 577 allows the inflowing liquid to fall onto the extending portion 575 after colliding with the facing portion 573. This makes it possible to prevent splashes from occurring on the stored liquid. Note that the cylindrical portion 581 allows most of the liquid that has flowed into the suction tank 501 to be received by the extending portion 575 (the peripheral wall of the cylindrical portion 581), and prevents the liquid that has collided with the facing portion 573 from scattering toward the second opening 505 side or the surrounding area.

[0065] The receiver 585 has at least an extension portion 583 extending in the front-rear direction at a distance below the extension portion 575 of the cover 577, and an inclined portion 584 provided in the front portion of the extension portion 583 on the opposite side to the inlet 62. The extending portion 583 receives the liquid received by the lid 577 below and directs it to the storage portion. As shown in FIG. 14(b), there is an opening between the inclined portion 584 and the plate-like portion of the lid 577, and the opening constitutes an outlet that connects the receiving unit 571 to the second tank 513. The inclined portion 584 is for allowing the liquid received by the extending portion 583 to flow downward, and has a guide function. This allows the liquid that has flowed in from the inlet 62 to be guided quietly and slowly toward the second tank 513. Returning to FIG. 15, the extension portion 583 is formed by the lower side of the peripheral wall of a cylindrical portion 587 extending in the front-to-rear direction, and the inclined portion 584 is provided at the lower end of the cylindrical portion 587 from the middle in the front-to-rear direction to the front side. Receiver 585 has an end wall 589 that closes the rear end of tubular portion 587. End wall 589 has a through hole 591 at a location facing inlet 62, and packing 593 is provided in through hole 591. This improves the sealing performance between tubular portion 63 (see FIG. 2) of main body 11 and through hole 591, making it possible to prevent liquid from leaking toward inlet 62. The receiver 585 has a protruding portion 595 that protrudes radially outward from the front end of the cylindrical portion 587. The receiver unit 571 is assembled with the protruding portion 595 in contact with the plate-shaped portion 579 of the cover 577, and is inserted from below into the groove portion 597 of the first tank 511, as shown in the enlarged view of Fig. 14(b). The groove portion 597 is formed between the rib 599 and the front wall portion 565, and there are a pair of groove portions 597 in the left-right direction.

[0066] 3. Hand tools 1, the hand tool 3 includes a tool body 701 and a discharge tank 703. The discharge tank 703 is configured to be removable from the tool body 701. By operating an operating part of the tool body 701, the hand tool 3 discharges liquid in the discharge tank 703, and sucks up the discharged liquid and wastewater containing dirt and the like by suction from the hose 5. The following description will be given mainly with reference to FIGS.

[0067] (1) Tool body The tool body 701 includes a nozzle portion 715 having a suction port 711 communicating with the device body 1 (main body portion 11) and a discharge port 713 for discharging the liquid in the discharge tank 703, a handle portion 717 provided on the nozzle portion 715, and an operation portion 719 that receives an operation for discharging the liquid in the discharge tank 703 from the discharge port 713. Here, a brush portion 721 is provided on the nozzle portion 715. The tool body 701 has a base body 731 and a handle body 733. A discharge part 735 and a brush part 721 are provided on the base body 731, and a handle part 717 and a suction part 737 are provided on the handle body 733. The discharge tank 703 is provided on the base body 731.

[0068] (1-1) Base body As shown in FIG. 17, the base body 731 includes a horizontal plate portion 741 perpendicular to the up-down direction, an erect plate portion 743 erected from the front portion of the horizontal plate portion 741, and a pair of opposing plate portions 745 connected to the rear portion of the erect plate portion 743 on the upper surface of the horizontal plate portion 741 and extending parallel to the front-to-rear direction.

[0069] (1-2)Discharge part The discharge part 735 can be of an electric or manual type, and here, a manual type is used. The discharge part 735 is a so-called trigger spray, and as shown in Fig. 16, by operating the operating part 719, a plunger 753 in a staging 751 moves, and the liquid in the staging 751 is discharged from a discharge port 713. The liquid in the discharging tank 703 is supplied via a tube 757 connected to the staging 751. A weight 759 with a through hole is attached to the lower end of the tube 757. As a result, no matter what position the hand tool 3 is used in (for example, in FIG. 16, a position in which the cylindrical portion 785 is on the lower side and horizontal), the weight 757 at the lower end of the tube 757 moves to the lowest position where the liquid in the discharging tank 703 accumulates, and the liquid can be reliably discharged. Also, one or more protrusions are provided at the lower end of the weight 759 to prevent the through hole from being blocked. Incidentally, the plunger 753 is biased by a coil spring 755 in the staging 751 in a direction opposite to the direction of movement of the plunger 753 during discharge. The operation portion 719 is formed of a lever, and is rotatably supported by a pair of opposing plate portions 745 of the base body 731 .

[0070] (1-3) Handle body As shown in FIGS. 17 and 18, the handle body 733 includes a handle main body 761 and a cover body 763. The handle main body 761 has a pair of side wall portions 765 covering both the left and right sides of the base body 731 which has the discharge portion 735 and the brush portion 721, an upper wall portion 767 connecting the upper ends to the rear ends of the pair of side wall portions 765, and a handle portion 717 provided on the upper wall portion 767 and the rear ends of the pair of side wall portions 765. The handle portion 717 is cylindrical or columnar, and here is cylindrical in order to form the suction portion 737. The handle portion 717 has a connection portion 768 at its lower end for detachably connecting to the hose 5. The connection portion 768 has a lock portion 766 for preventing the connector 805 of the hose 5 from coming loose. For the lock, a screw, a resin rivet, an adhesive structure, an engagement structure, or the like can be used, and here, an engagement structure is used. Specifically, the lock portion 766 is formed of an "L"-shaped groove portion that extends along the cylindrical axis and then bends in the circumferential direction. The cover body 763 is attached to the handle body 761 with a gap between it and an upper wall portion 767 of the handle body 761, and the space between the cover body 763 and the upper wall portion 767 communicates with the inside of the handle portion 717. This forms the suction portion 737. The suction port 711 is provided in a front wall portion 769 of the cover body 763.

[0071] (1-4) Suction part The suction portion 737 has suction paths through which air is sucked from the main body 11 between the handle main body 761 and the cover body 763 and inside the handle portion 717 . (1-5) Brush section The brush unit 721 includes a base portion 771 and a brush 773 provided on the base portion 771. The brush unit 721 is disposed below the outlet 713 of the outlet portion 735.

[0072] (2) Discharge tank The discharge tank 703 has a tank portion 781 and an attachment portion 783 for attaching the discharge tank 703 to the base body 731 . The tank portion 781 integrally includes a cylindrical portion 785 located on the mounting portion 783 side, and a bulging portion 787 located below the cylindrical portion 785. The cylindrical portion 785 extends in the vertical direction, and the operation portion 719 is disposed between the cylindrical portion 785 and the handle portion 717. The lower end of the cylindrical portion 785 is located at approximately the same position as the lower end of the operation portion 719 with respect to the base body 731, or lower than the lower end of the operation portion 719. This makes it possible to prevent the discharge tank 703 from getting in the way when the operation portion 719 is operated. The bulging portion 787 extends downward from the cylindrical portion 785 and bulges toward the handle portion 717. In other words, the bulging portion 787 is inclined so that the portion facing the handle portion 717 approaches the handle portion 717. This allows the discharge tank 703 to be made larger without impairing the operability of the user. The mounting portion 783 is attached to the mounting portion 747 of the base body 731. A screw structure or an engagement structure can be used for the attachment, and here, an engagement structure is used in which the discharge tank 703 is engaged by rotating it relative to the base body 731. The mounting portion 783 of the discharge tank 703 has a cylindrical portion 789 and an "L"-shaped groove portion 791 provided in the cylindrical portion 789, and a convex portion 749 of a cylindrical portion 748 constituting the mounting portion 747 of the base body 731 engages with the groove portion 791. The discharge tank 703 has a convex portion in the groove portion 791 as a lock portion 793 for locking the attached state, which restricts the convex portion 749 of the base body 731 from rotating in the removal direction.

[0073] 4. Hose 1, the hose 5 includes a hose body 801 and connectors 803, 805 provided on both ends of the hose body 801. One connector 803 is removably attached to a connection portion 441 of the suction flow path forming member 33 of the device body 1, and the other connector 805 is removably attached to a connection portion 768 of a handle portion 717 of the hand tool 3. The connector 803 has a locking portion 807 that prevents the suction flow path second member 413 on the main body 11 side from coming loose. The locking portion 807 engages with an “L” shaped groove that constitutes the locking portion 443 of the suction flow path second member 413. The connector 805 has a locking portion 809 that prevents the hand tool 3 from coming loose. The locking portion 809 engages with an “L” shaped groove that constitutes the locking portion 766 of the connecting portion 768 of the handle portion 717.

[0074] 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, the present invention also includes examples that are not described in the embodiments and modified examples, and design changes that do not deviate from the gist of the invention.

[0075] <Modification> 1. Case (1) Although the case 31 has the first case 51 and the second case 151, it may be composed of three or more members. (2) Although the first case 51 and the second case 151 are arranged front to back, they may be arranged left to right or top to bottom. Considering the size of the partition wall 55 to which the units are attached, it is preferable to arrange the first case 51 and the second case 151 in the front to back direction, which can ensure a large area. Note that the front to back direction may be the direction in which the smallest dimension of the front to back, left to right, and top to bottom dimensions of the case 31 is obtained, or the direction in which the rotation axis of the blower unit 23 extends, and it is preferable to have the partition wall 55 perpendicular to that direction. (3) The handle portion 43 was composed of the first case 51 and the second case 151, but it may be composed of either the first case 51 or the second case 151, or if it has three or more components, it may be composed of a third case corresponding to the third case, or it may be composed of all of these components. (4) Although the legs 45 are configured with the first case 51 and the second case 151, they may be configured with either the first case 51 or the second case 151, or, if there are three or more members, may be configured with a third case corresponding to the third member, or may be configured with all of these members. However, providing the legs over a wider area can improve stability. (5) The locking means 67 of the first case 51 may have an inverse engagement relationship with the locking means 530, 531 of the suction tank portion 12. In other words, the first movable body 534 and the second movable body 535 may be provided on the first case 51. Also, the through-hole of the locking means 67 of the first case 51 may serve as the engagement protrusion, and the engagement protrusions 532, 533 of the locking means 530, 531 of the suction tank portion 12 may serve as the engagement recess. (6) The cylindrical portion 63 is provided in the first case 51, and its tip is inserted into the first opening 503 of the suction tank portion 12. However, a portion corresponding to the cylindrical portion 63 may be provided integrally with or separately from the suction tank portion 12, and the partition wall portion 55 may have a through hole (opening) through which the portion corresponding to the cylindrical portion is inserted. (7) The packings 65 and 66 are provided in the first case 51, but they may be provided in the first opening 503 or the second opening 505 of the suction tank portion 12. (8) The sealing portion 83 for the suction flow path 401 may be fitted into the suction flow path forming member 33, and the fitting relationship may be reversed. Specifically, a groove may be provided on the suction flow path forming member 33, and the sealing portion 83 may be a protrusion that fits into the groove. Also, a packing may be provided between the sealing portion 83 and the suction flow path forming member 33. (9) The mounting portion 89 for mounting the circuit unit 29 utilizes a plate-like portion 99, but the front support portion 91, the rear support portion 93, the upper contact portion 95, and the lower contact portion 97 may be provided independently using ribs, bosses, or the like. The mounting portion 89 was provided on the partition wall portion 55 of the first case 51, but it may be provided on the suction flow-path forming member 33, for example. Note that by providing the mounting portion 89 at a distance from the suction flow path 401, measures against liquid can be simplified. Also, the transmission of vibrations of the suction flow path 401 to the circuit unit 29 side can be suppressed. (10) The mounting portion 101 for mounting the power supply unit 27 utilizes the boss portion 103, but a rib or a plate-like portion may also be used. The mounting portion 101 was provided on the partition wall portion 55 of the first case 51, but it may be provided on the suction flow path forming member 33, for example. By providing the mounting portion 101 at a distance from the suction flow path 401, measures against liquid can be simplified (because the mounting portion 107 of the suction flow path forming member 33 is used to mount the lower end side of the power supply unit 27, liquid will not flow to the power supply unit 27 side unless the device is turned upside down). (11) It is sufficient that the sealing portion 117 for the discharge flow path 451 can be fitted into the discharge flow path first member 461, and the fitting relationship may be reversed. Specifically, a protrusion may be provided on the discharge flow path first member 461 side, and the sealing portion 117 may be a groove portion into which the protrusion fits. Also, a packing may be provided between the sealing portion 117 and the discharge flow path first member 461. (12) The mounting portions 131, 191 for mounting the operation unit 25 need only be able to fit into the handle plate portion 371, and the fitting relationship may be reversed. Specifically, a protrusion may be provided on the end surface of the cutout portions 133, 193 of the handle portion 43, and a groove may be provided on the end surface of the handle plate portion 371. (13) It is sufficient that the sealing portion 167 for the discharge flow path 451 can be fitted into the discharge flow path second member 463, and the fitting relationship may be reversed. Specifically, a protrusion may be provided on the discharge flow path second member 463 side, and a groove may be provided on the sealing portion 167. Also, a packing may be provided between the sealing portion 167 and the discharge flow path second member 463. (14) The support part 171 for the discharge flow path first member 461 may have a reversed fitting relationship as long as it can be fitted into the discharge flow path first member 461. Specifically, a protrusion may be provided on the discharge flow path first member 461 side, and a groove may be provided on the support part 171. Also, a packing may be provided between the support part 171 and the discharge flow path first member 461. (15) The support portion 171 supports approximately the entire circumference of the rear end portion of the discharge flow path first member 461, but may support only a portion of the top, bottom, left, and right sides. (16) The support portion 171 may be capable of supporting the discharge flow path first member 461 from the second case 151 side, and may be configured as a protrusion or convex portion that protrudes forward along the outer or inner surface of the rear end of the discharge flow path first member 461. (17) When the case 31 is composed of multiple case members, a partition 100 may be provided above an electric component (e.g., circuit unit 29) as shown in FIG. 18. In particular, when an electric component is located below the butt joint (border) of multiple case members, it is preferable to provide the partition 100 below the butt joint. In FIG. 18, the partition 100 is configured by an extension (100) extending rearward from the partition wall 55 of the first case 51, and here, is curved upwardly in a convex shape. The liquid received by the partition 100 can further drip onto the first case 51 side and be discharged to the outside through a drainage hole (not shown) of the case 31. The drainage hole is located directly below the partition 100. (18) The case 31 has the projection 61 in the storage space 47 that stores the suction tank 12, but for example, a groove for the engaging member 519 of the suction tank 12 may be provided, and the left and right wall portions of the storage space 47 may be made flat from top to bottom. A space for the liquid level detector 381 may be formed between the outer wall of the case 31 and the wall portion on the storage space 47 side.

[0076] 2. Blower unit (1) Although the blower unit 23 has the drive motor 201 and the blower fan 203 in the front-rear direction, they may be provided in the left-right direction, the up-down direction, or a direction intersecting these directions. Also, the blower fan 203 may be provided on the rear side. (2) Although blower unit 23 includes electric blower 211 and cover body 221 as a unit, they may be separate. That is, in the embodiment, a group of components including electric blower 211 is attached to first case 51 as a unit, and therefore is referred to as blower unit 23 for convenience. In addition, exhaust flow path first member 461 constituting exhaust flow path 451 may be a part of blower unit 23. For example, the front cover portion 227 of the first cover body 223 may be attached to the partition wall portion 55 as a separate body, or a portion corresponding to the front cover portion 227 of the first cover body 223 may be integrally provided as an integrally molded product on the partition wall portion 55. Similarly, the rear cover portion 229 of the first cover body 223 and the second cover body 225 may be integrally attached to the partition wall portion 55, a part corresponding to the rear cover portion 229 of the first cover body 223 may be attached to the partition wall portion 55 and the second cover body 225 may be attached to the part, or a part corresponding to the rear cover portion 229 of the first cover body 223 may be integrally provided as an integrally molded product on the partition wall portion 55 and the second cover body 225 may be attached to the part. (3) It is not necessary to provide rear cover portion 229 of first cover body 223 and second cover body 225. In this case, electric blower 211 may be attached using exhaust flow path first member 461 of exhaust flow path forming member 35. (4) First cover body 223 includes front cover portion 227 and rear cover portion 229 that are integrally formed in a stepped shape, but may be formed in a cylindrical shape with a bottom without a step. However, when valve body 251 is provided, it is preferable that front cover portion 227 has a small cross-sectional area in order to increase the suction force of valve body 251. (5) The valve body 251 is provided on the front wall portion 231 of the cover body 221, but it need only be located in the communication passage between the suction tank section 12 and the suction port 207 of the electric blower 211. For example, the valve body 251 may be provided on the peripheral wall portion of the cover body 221, or may be provided in the suction tank 501 by utilizing the second opening 505 of the suction tank 501 (the second opening 505 of the suction tank 501 is configured to correspond to the opening 246 of the cover body 221). (6) Although the biasing means 253 is disposed outside the cover body 221, it may be disposed inside the cover body 221. When disposed inside, the biasing means 253 may utilize a compression spring that pushes the valve body 251 forward. (7) Although the rod 255 has the flange portion 261 at the front end, it is sufficient that the biasing means 253 can be disposed between the flange portion 261 and the support portion 238, and the flange portion may be disposed in the middle of the shaft portion 263. (8) Valve element 251 opens and closes opening 249 by utilizing the suction force of electric blower 211, but an electromagnetic valve such as a solenoid may also be used. In this case, it is sufficient to control opening and closing by operating / stopping electric blower 211. (9) Although the blower unit 23 is disposed on the upper side, it may be disposed in the center in the vertical direction. However, it is preferable to dispose it on the upper side in consideration of the capacity of the suction tank 501. Although the blower unit 23 is disposed on the left side in the horizontal direction, it may be disposed on the right side.

[0077] 3. Power supply unit (1) The power supply unit 27 is provided so that the battery 301 can be inserted and removed from the right side in the left-right direction, but may be provided so that the battery 301 can be inserted and removed from above, for example. In this case, this can be achieved by arranging the circuit unit 29 on the lower side and the power supply unit 27 on the upper side. (2) Case 303 is configured with lower case 311 and upper case 313, which are divided into upper and lower halves, but it may be configured with three members, a lower case, a middle case, and an upper case, or it may be configured with a front case and a rear case, which are divided into front and rear halves, or it may be configured with a front case, a middle case, and a rear case. Also, the lower case and the upper case may be configured as one unit. In this case, connection terminal 323 can be provided in case 303 by, for example, insert molding. (3) Case 303 has ridges 348 and grooves 349 at the joint portion to prevent liquid from entering from the outside, but upper case 313 may be joined to lower case 311 so as to cover the outside of the lower case 311 at the joint portion. If power supply unit 27 is provided in a position where liquid infiltration is not a consideration, ridges 348 and grooves 349 may not be provided. (4) When the case 303 is made up of a plurality of members, a portion of the case 303 may be integrally formed with the suction flow path forming member that constitutes the suction flow path 401 by integral molding. (5) The door 315 rotates about a rotation axis parallel to the up-down direction, but may be rotatable about a rotation axis parallel to the front-rear direction, or may be slidable in the up-down direction or front-rear direction. (6) Although the power supply unit 27 is located below the circuit unit 29, it may be located above the circuit unit 29. In other words, the positions of the power supply unit 27 and the circuit unit 29 may be reversed. (7) Although power supply unit 27 charges battery 301 by removing it from the power supply unit 27, the battery may be configured to be connectable to a cord so that battery 301 can be charged without being removed from the power supply unit 27.

[0078] 4. Circuit unit (1) In the circuit unit 29, the electronic components 351 constituting the power generating section and the control section are mounted on one board 353. However, the electronic components 351 may be mounted on multiple boards. (2) When the control unit receives a signal from the liquid level detection unit 381 indicating that the liquid level in the suction tank unit 12 has reached a threshold value, the control unit controls the electric blower 211 to stop driving. This control may be performed, for example, by a circuit using a switching element or the like, or may be performed by executing a program stored in advance when the operation switch 13 of the operation unit 25 is turned ON. (3) When the control unit receives a signal from the attachment detection unit 391 indicating that the suction tank unit 12 is not attached, the control unit controls so as not to drive the electric blower 211. Alternatively, when the operation switch 13 of the operation unit 25 is turned ON, if the attachment detection unit 391 detects that the suction tank unit 12 is attached, the control unit controls so as to drive the electric blower 211. This type of control may be performed, for example, by a circuit using a switching element or the like, or may be performed by executing a program stored in advance when the operation switch 13 of the operation unit 25 is turned ON.

[0079] 5.Suction channel (1) Although a part of the suction flow path 401 is constituted by the first case 51 and the suction flow path forming member 33, the whole may be constituted by the suction flow path forming member 33. In this case, the suction flow path forming member may be constituted by one or more members. In addition, in this case, the suction flow path forming member 33 may be attached to the first case 51 or the second case 151. (2) Although the suction flow path 401 is formed by utilizing the first case 51, the suction flow path 401 may be formed by utilizing the second case 151, or may be formed by utilizing both the first case 51 and the second case 151. (3) The suction passage 401 extends from the other left-right side (left side) at the lower side to one left-right side (right side) at the upper side, but may extend upward from the one left-right side (right side) at the lower side. In this case, the power supply unit 27 may be provided on the other left-right side. (4) The suction flow path 401 extends from the other side in the left-right direction (left side) at the lower side to one side in the left-right direction at the upper side (right side), but may be provided, for example, at the upper side on one side in the left-right direction (right side). In this case, the hose 5 is connected at the upper side on one side in the left-right direction (right side), and can be implemented, for example, by forming an "L" shape that extends in the left-right direction and then toward the front when viewed from above. Note that in this case, it can be implemented by moving the circuit unit 29 to the lower side, and a partition unit 100 or the like may be provided.

[0080] 6. Discharge flow path (1) Although exhaust flow passage 451 has an "L" shape when viewed from the front-rear direction, it may have an "I", "N", or "J" shape parallel to the up-down direction. In the case of an "I" shape, exhaust ports 177, 457 are formed on the lower side. In the case of an "N" or "J" shape, exhaust ports 177, 457 are formed at a portion other than the connection portion with electric blower 211. From the viewpoint of lengthening exhaust flow passage 451, exhaust flow passage 451 may be formed in a "L" shape, and exhaust ports 177, 457 may be located above electric blower 211. Note that exhaust flow passage 451 may be inclined, an "L", an "I", or a "J" shape. (2) When viewed from the front-to-rear direction, discharge flow path 451 is “L” shaped and has one bent portion (bent flow path 454) between the upstream end and the downstream end. However, discharge flow path 451 may be, for example, “N” shaped or “W” shaped and may have two or more bent portions (bent flow path 454). Note that, taking into consideration the arrangement (accommodation) space for discharge flow path 451, an “L” shape is preferable from the standpoints of noise and compactness. (3) The exhaust flow path forming member 35 has an exhaust flow path first member 461 and an exhaust flow path second member 463, and the exhaust flow path first member 461 has a hood function for guiding air from the electric blower 211 to the exhaust flow path second member 463. For this reason, the exhaust flow path forming member 35 may be composed of the exhaust flow path second member 463. (4) The discharge flow path forming member 35 has a discharge flow path first member 461 and a discharge flow path second member 463, and the discharge flow path first member 461 is attached to the first case 51, but the discharge flow path first member 461 may also be attached to the second case 151. In this case, the discharge flow path first member 461 and the discharge flow path second member 463 may be integrated by integral molding, or may be integrated by joining separate members. (5) Exhaust ports 457 are provided at three positions downstream of exhaust flow path 451 so that exhausted air flows in three directions, namely, the right side, the lower side, and the rear side, but exhaust ports may be provided at one or two positions so that the air flows in one or two directions. Note that, taking into consideration the resistance of the air flowing in exhaust flow path 451, it is preferable that the speed of the air exhausted from exhaust ports 457 is slower than the speed of the air flowing in exhaust flow path 451. (6) Although discharge flow path second member 463 has receiving portion 497, receiving portion 497 may be provided in discharge flow path first member 461, or in first case 51 or second case 151. When provided in first case 51, receiving portion 497 may be formed of a plate-like portion extending rearward from partition wall portion 55. When provided in second case 151, receiving portion 497 may be formed of a plate-like portion extending forward from rear wall portion 155. Note that a plurality of receiving portions 497 may be provided, and receiving portions 497 may be provided separately in discharge flow path forming member 35, first case 51, second case 151, etc. (7) Although the discharge flow path second member 463 has the receiving portion 497 integrally formed therewith, the receiving portion 497 may be formed as a separate body and attached to the discharge flow path forming member 35, the first case 51, the second case 151, or the like. (8) Although the receiving portion 497 has a shape that is convex on the bottom, it may be shaped so that one side in the left-right direction is lower, and a discharge mechanism for discharging the liquid to the outside may be provided on one side. The discharge mechanism can be implemented by, for example, using through holes or grooves to allow the liquid to flow along the wall surfaces of the first case 51, the second case 151, and the flow path forming member.

[0081] 7.Detection unit (1) The detection unit 37 includes the liquid level detection unit 381 and the attachment detection unit 391, but these do not have to be included. However, including these can prevent the liquid from overflowing from the suction tank 501 and the electric blower 211 from operating when the suction tank unit 12 is not attached. (2) The liquid level detection unit 381 is provided on the protruding portion 61 of the first case 51. However, depending on the positional relationship with the float 387, the liquid level detection unit 381 may be provided on the partition wall portion 55. (3) The attachment detector 391 detects the attachment of the suction tank 12 by contacting the same, but a non-contact sensor such as an optical sensor may also be used. Also, as long as it can detect the attachment of the suction tank 12, it may be provided in another location, for example, the protruding portion 61.

[0082] 8. Operation unit (1) The operation unit 25 has a plate-shaped handle plate portion 371 that constitutes part of the upper wall of the handle portion 43, but the operation switches 13 and the like may be provided in the case 31, and the case 31 may be attached to the handle portion 43. In this case, this can be implemented by providing through holes for the operation switches 13, the indicator lights 14, etc. in the handle portion 43. (2) The operation unit 25 is provided with an indicator light 14 that is turned on while the electric blower 211 is operating, but may also be provided with an indicator light for notifying that the suction tank 501 is full when the liquid level detection unit 381 detects that the liquid level in the suction tank 501 has reached a threshold value, or an indicator light for notifying that the suction tank unit 12 is attached when the attachment detection unit 391 detects that the tank is attached, etc. Note that a sound such as a buzzer may be emitted to notify that the tank is full or that the tank is attached. (3) The operation unit 25 is provided on the handle portion 43. However, the operation unit 25 may be provided on the upper wall portions 53a, 153a, the right wall portions 53c, 153c, the left wall portions 53d, 153d, the rear wall portion 155, or the like of the case 31.

[0083] 9. Suction tank (1) The suction tank 501 includes a first tank 511 and a second tank 513, the second tank 513 is detachable (removable) from the first tank 511, and the first tank 511 and the second tank 513 are detachable (removable) from the main body 11. However, the suction tank 501 may be fixed to the main body 11. In this case, it can be implemented by providing the suction tank 501 with a liquid draining means (for example, a screw-type cap). Also, the first tank 511 may be fixed to the main body 11, and the second tank 513 may be detachable (removable) from the first tank 511 or the main body 11. When only the second tank 513 is removable, the second tank 513 may be the suction tank 501 (the structure corresponding to the first tank 511 may be a part of the main body 11). In this case, the second tank 513 may have a lid member to prevent liquid from leaking when it is carried around. (2) First opening 503 receives tubular portion 63 of main body 11. For example, first opening 503 may have a tubular portion that extends in a tubular shape from first opening 503 toward main body 11. (3) The second opening 505 receives the front cover portion 227 of the cover body 221 of the main body portion 11, but, for example, a structure equivalent to the front cover portion 227 of the main body portion 11 may be provided within the suction tank 501 using the second opening 505. (4) Although the storage section 541 is provided at the corner between the left wall section 568 and the rear wall section 563 of the suction tank 501, it may be provided at another location, such as the center of the left wall section 568. (5) Although three partition walls 551, 553, 555 are provided at intervals in the direction in which the first opening 503 and the second opening 505 are arranged (left-right direction), two or four or more partition walls may be provided. However, in consideration of the fluidity of liquid, it is preferable that the partition walls are provided alternately in a direction (front-back direction) perpendicular to the direction in which the first opening 503 and the second opening 505 are arranged, so that the liquid flows in a zigzag (meandering) pattern in the front-back direction. Furthermore, the partition walls 551, 553, 555 extend in the front-rear direction and are provided alternately front to back with a gap in the left-right direction, but may instead extend in the left-right direction and be provided alternately left to right with a gap in the front-rear direction. (6) The partition walls 551, 553, 555 are provided to connect the upper wall 557 and the lower wall 559 of the suction tank 501, but may not be provided above the upper limit of the liquid storage. However, in a case where the liquid flowing in from the inlet 62 splashes (for example, when the receiving unit 571 is not provided), it is preferable to provide the partition walls 551, 553, 555 above the upper limit of the storage from the viewpoint of preventing the liquid from splashing toward the second opening 505 side. (7) The receiving unit 571 has the lid 577 and the receiving device 585, but may have only the receiving device 585 or only the lid 577. In this case, the lid 577 constitutes the receiving portion of the invention 5. In consideration of the splashing of liquid, it is preferable that the extending portion 575 is constituted by the cylindrical portion 581. (8) The receiving unit 571 has the lid 577 and the receiving device 585 and has the upper and lower extensions 575, 583. However, as long as the liquid can be received in multiple stages, multiple stages of plate members perpendicular to the vertical direction may be provided above and below.

[0084] 10. Hand Tools (1) The hand tool 3 has the discharging tank 703 in a detachable (removable) manner, but the discharging tank 703 may be fixedly provided. In this case, this can be achieved by providing an opening for injecting or pouring out the liquid. (2) The hand tool 3 includes the discharging tank 703, but the hand tool 3 may not include the discharging tank 703 and may instead include a delivery pump on the device main body 1 side and supply the liquid to be discharged using the hose 5. In this case, the hand tool 3 is also configured to discharge the liquid by operating the operation unit 719. (3) Although the hand tool 3 has a manual discharge unit 735, it may have, for example, a pump to make it an electrically powered discharge unit. In this case, the hand tool 3 may be equipped with a battery, or may receive power from the device body 1 using the hose 5. In this case, too, it may be operated by an operation switch provided on the operation unit 719, or may be operated by a lever. (4) The hand tool 3 includes the brush portion 721, but this does not have to be the case. (5) The discharge tank 703 has a bulging portion 787, but it may be formed only of the cylindrical portion 758, or the bulging portion 787 may be made to bulge on the side opposite the handle portion 717, or the bulging portion 787 may be made to bulge around the entire circumference of the cylindrical axis of the cylindrical portion 758, or the entire tank may be formed of the cylindrical portion 758 and bulge on the side opposite the handle portion 717 along the entire circumference. (6) Although water is used as the liquid, other liquids may be used, such as detergent, bleach, organic solvents such as alcohol, and mixtures of water with detergent, bleach, etc.

[0085] <Invention> The above-described embodiment and modifications include the following inventions. 1. Invention 1 A cleaning device has been proposed that includes a housing having an upright handle assembly and a cleaning head attached to the handle assembly and adapted to move over a surface to be cleaned, a fluid delivery system including a supply tank assembly and a fluid dispenser provided on the cleaning head in fluid communication with the supply tank assembly, and a fluid recovery system including a suction source, a suction nozzle provided on the cleaning head in fluid communication with the suction source, and a recovery tank container having a bottom end and a top end opposite the bottom end (for example, Patent Document 2: Utility Model Registration No. 3220094). The surface cleaning device of Patent Document 2 is capable of sucking in liquid, so measures are required to prevent electrical components from getting wet with the liquid. An object of the present invention is to provide a cleaning device capable of preventing breakdowns in electrical components due to liquid wetting.

[0086] The first cleaning device according to the first aspect of the present invention is A cleaning device capable of sucking air and liquid, An electric blower that generates suction force; A tank portion for storing the sucked liquid; A cover body for covering the electric blower; A valve body. the cover body has an opening communicating with the inside of the tank portion and communicating with a suction port of the electric blower, The valve body is in a closed state in which the opening is closed when the electric blower is stopped, and is in an open state in which the opening is open when the electric blower is operating. This makes it possible to prevent the liquid in the tank from flowing toward the electric blower while the electric blower is stopped. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-rear direction, a structure in which the rotating shaft is arranged in the left-right direction, a structure in which the rotating shaft is arranged in the up-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-rear direction, the left-right direction, and the up-down direction. The electric blower includes a structure in which the rotating shaft is arranged on the upper, middle, or lower side in the up-down direction, a structure in which the rotating shaft is arranged on the right, middle, or left side in the left-right direction, and a structure in which the rotating shaft is arranged on the front, middle, or rear side in the front-rear direction. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to a member supporting the tank and a structure detachable from the support member. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section or the tank is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure not having a detection unit. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the fifth cleaning device of invention 4, and a structure not having the first partition section and the second partition section. The tank section includes at least a structure having a receiving unit of the first or third cleaning device of invention 5 and a structure not having a receiving unit. The tank portion includes at least a structure having at least one of the first partition portion and the second partition portion of the second cleaning device of the fifth invention, and a structure having neither the first partition portion nor the second partition portion. The cover body includes at least a structure in which the opening is located inside the tank portion and a structure in which the opening is located outside the tank portion. The structure in which the opening is located outside the tank portion can be realized by connecting the cover body and the tank portion with a communication device. The positional relationship between the cover body and the tank portion is not particularly limited, and they may be positioned in the front-to-back direction, the up-down direction, the left-to-right direction, or a direction intersecting at least one of the front-to-back, up-down, and left-to-right directions. The valve body includes at least a structure provided on the cover body, a structure provided on the tank portion, and a structure provided on both the cover body and the tank portion. This includes at least a structure in which a sealing portion is provided between the cover body and the tank portion, and a structure in which a sealing portion is not provided.

[0087] The second cleaning device according to the first aspect of the present invention is the first cleaning device, The valve body is biased in a direction to close the opening, and is brought into an open state by the action of suction force from the electric blower. This allows the valve to be opened or closed in accordance with the operation of the electric blower with a simple structure. "Being biased in the closing direction" includes at least the concept of biasing by an electronic component such as a solenoid, in addition to the biasing by a spring in the third cleaning device according to invention 1. In this case, this can be achieved by stopping the drive of the electronic component while the electric blower is in operation.

[0088] A third cleaning device according to the first aspect of the present invention is the first or second cleaning device, the valve body is provided on a rod that is partially inserted into the cover body through the opening, A spring is disposed between the flange portion of the rod and the cover body, When the suction force of the electric blower acts, the valve body moves together with the rod to one side in the axial direction of the rod, thereby achieving the open state. This allows the valve to be opened or closed in accordance with the operation of the electric blower with a simple structure. The axial direction of the rod includes at least a direction parallel to the rotation shaft of the electric blower, a direction intersecting with the rotation shaft of the electric blower, and a direction perpendicular to the rotation shaft. The direction intersecting with or perpendicular to the rotation shaft can be achieved, for example, by shaping the cover body so that the first and second cylindrical parts have their cylindrical axes intersecting or perpendicular to each other. The flange portion of the rod includes at least a structure located in the middle of the rod and a structure located on the outer end of the cover body of the rod.

[0089] A fourth cleaning device according to the first aspect of the present invention is any one of the first to third cleaning devices, The cover body protrudes into the tank portion along the axial direction of the electric blower with the opening facing the inside of the tank portion. This allows communication between the opening of the cover body and the inside of the tank portion without the need for a connector.

[0090] A fifth cleaning device according to the first aspect of the present invention is A cleaning device capable of sucking air and liquid, An electric blower that generates suction force; A tank portion for storing the sucked liquid; A cover body for covering the electric blower; Equipped with The cover body has an opening at a tip end thereof that protrudes into the tank portion and communicates with a suction port of the electric blower. This makes it difficult for liquid to flow into the cover from the opening. In the fifth cleaning device, the electric blower, the tank, the cover, and the positional relationship between the tank and the cover are similar to those in the first cleaning device.

[0091] A sixth cleaning device according to the first aspect of the present invention is the fourth or fifth cleaning device, A sealing portion is provided to seal between the cover body and the tank portion. This can prevent air or liquid from leaking out of the tank between the cover and the opening in the tank that receives the cover, and can also prevent a decrease in the suction force of the electric blower. The sealing portion includes at least a structure provided on the cover body side, a structure provided on the outer surface side of the tank portion, and a structure provided on the inner surface side of the tank portion. The cleaning device according to invention 1 may or may not include the configurations of other inventions. In other words, invention 1 is a technical idea different from other inventions, and is not limited by the configurations of other inventions.

[0092] 2. Invention 2 The surface cleaning device of Patent Document 2 described in Invention 1 requires measures to reduce noise generated by the suction source. An object of the present invention 2 is to provide a cleaning device capable of reducing noise caused by an electric blower.

[0093] The first cleaning device according to the second aspect of the present invention is In a device capable of sucking air and liquid, An electric blower that generates suction force; an exhaust flow path through which exhaust from the electric blower passes; With the case, the exhaust flow path has an exhaust port for discharging exhaust gas from the electric blower, The electric blower is disposed at an upper portion of the case in a vertical direction and on one side of the case in a left-right direction, The exhaust port is disposed below the electric blower in the up-down direction. This allows the exhaust flow path to be longer, and the noise of the electric blower to be reduced. "Below the electric blower in the vertical direction" refers to the area located below an imaginary line in the horizontal direction passing through the bottom end of the electric blower when the device is viewed from the front, and is a concept including directly below and diagonally below the electric blower. In other words, the exhaust port includes at least a structure located on the right, center, or left side in the horizontal direction. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The discharge flow path includes at least a structure having a bent portion of the third cleaning device and a structure having no bent portion. The discharge flow path may or may not include the receiving portion of the invention 3. The discharge flow path includes at least a structure constituted by a member forming the discharge flow path and a structure constituted by a member forming the discharge flow path and a case.

[0094] A second cleaning device according to a second aspect of the present invention is the first cleaning device, The discharge outlet is disposed on the bottom side in the up-down direction and on the other side in the left-right direction. This allows the exhaust flow path to be longer, and the noise of the electric blower can be reduced. The shape of the discharge flow passage is not particularly limited as long as the discharge port is located on the other of the left and right sides.

[0095] A third cleaning device according to the second aspect of the present invention is the first or second cleaning device, The discharge flow passage has a bent portion between one end and the other end. This allows the exhaust flow path to be longer, and the noise of the electric blower can be reduced. The bending portion includes at least a structure that bends from the vertical direction to the horizontal direction, a structure that bends from a direction inclined relative to the vertical direction to the horizontal direction, a structure that bends from the vertical direction to a direction inclined relative to the horizontal direction, and a structure that bends in the front-to-back direction or in a direction intersecting the front-to-back direction in accordance with the above bending.

[0096] A third cleaning device according to the second aspect of the present invention is the first or second cleaning device, The discharge flow passage is substantially L-shaped. This allows the discharge flow path to be long with a simple structure. The cleaning device according to the invention 2 may or may not include the configurations of the other inventions. In other words, the invention 2 is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0097] 3. Invention 3 The surface cleaning device of Patent Document 2 described in Invention 1 is a device capable of sucking liquid, and therefore requires measures to prevent the electric components from getting wet with the liquid. An object of the present invention is to provide a cleaning device that can prevent breakdowns in electrical components due to liquid leakage.

[0098] The first cleaning device according to the third aspect of the present invention is an electric blower capable of sucking air and liquid and generating a suction force; An electric component disposed below the electric blower; The electric blower includes a receiving portion provided between the electric blower and the electric component. With this, even if liquid leaks from the electric blower side, the liquid is received by the receiving portion, so that the liquid can be prevented from flowing toward the electric components. The concept of the electrical component includes at least one of an electrical circuit (such as a power supply circuit), a battery, a sensor, and a control circuit. The term "below" includes at least the range that may be wetted by flowing or dripping liquid when liquid leaks from an electric blower without a receiving part. The cleaning device in this case is assumed to be placed on a horizontal surface and to be carried and used by a user (inclined from the state where it is placed on a horizontal surface). The receiving portion includes at least a structure provided on a flow path forming member of the second cleaning device, a structure provided on a support member that supports the electric blower, and a structure provided on a member different from the flow path forming member and the support member. The receiving portion includes at least a structure capable of receiving and storing liquid from the electric blower side, and a structure that receives the liquid and directs it to another portion so that the electric components do not get wet. The structure capable of storing the liquid includes at least a structure curved so that the lower side is convex, a structure having a flat portion and an upright portion standing upward from an edge of the flat portion, and a structure having a curved portion curved so that the upper side is convex and an upright portion standing upward from an edge of the curved portion, as in the fourth cleaning device. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-rear direction, a structure in which the rotating shaft is arranged in the left-right direction, a structure in which the rotating shaft is arranged in the up-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-rear direction, the left-right direction, and the up-down direction. The electric blower includes at least a structure in which the rotating shaft is arranged on the upper, middle, or lower side in the up-down direction, a structure in which the rotating shaft is arranged on the right, middle, or left side in the left-right direction, and a structure in which the rotating shaft is arranged on the front, middle, or rear side in the front-rear direction. The electric blower unit may or may not be provided with the cover body of invention 1.

[0099] A second cleaning device according to a third aspect of the present invention is the first cleaning device, a flow path forming member that forms an exhaust flow path through which exhaust gas from the electric blower passes, The flow passage component has the receiving portion. This makes it possible to easily provide the receiving portion. "The flow path forming member has a receiving portion" includes at least a structure in which the receiving portion is integrally formed by one-piece molding or the like, and a structure in which a separate receiving portion is attached to the flow path forming member and is integral therewith. The flow path forming member may be composed of one member, or may be composed of multiple members (for example, a case to which an electric blower is attached). The flow path forming member may or may not have the configuration of the exhaust flow path of Invention 2.

[0100] A third cleaning device according to the third aspect of the present invention is the first or second cleaning device, a main body portion including the electric blower, the electric component, the receiving portion, and the flow path component member, the flow path component has an exhaust port for discharging exhaust gas from the electric blower, The electric blower is disposed on an upper side of the main body in a vertical direction and on one side of the main body in a left-right direction, The outlet is disposed on the bottom side of the main body in the up-down direction. This allows the exhaust flow path to be longer, and the noise of the electric blower to be reduced. The outlet of the flow path forming member may be located on the bottom side of the main body, or on the upper side or middle side in the vertical direction.

[0101] A fourth cleaning device according to the third aspect of the present invention is the third cleaning device, The main body has an external exhaust port on the bottom side in the vertical direction. A fifth cleaning device according to a third aspect of the present invention is any one of the first to fourth cleaning devices, The receiving portion is curved so that the lower side thereof has a convex shape. This makes it possible to store liquid that flows down or drips from the electric blower side. The cleaning device according to the third invention may or may not include the configurations of the other inventions. In other words, the third invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0102] 4. Invention 4 The surface cleaning device of Patent Document 2 described in Invention 1 is a device capable of sucking in liquid, and therefore if the liquid sucked in exceeds the capacity of the tank container, there is a possibility that the liquid will leak from the tank container. The fourth aspect of the present invention is to provide a cleaning device that is capable of preventing the capacity of the tank from being exceeded by suction of liquid.

[0103] A first cleaning device according to the fourth aspect of the present invention is an electric blower capable of sucking air and liquid and generating a suction force; A tank portion for storing the sucked liquid; A detection unit that detects a liquid level in the tank unit; and a control unit that stops the electric blower when the detection unit detects that the liquid level has reached a threshold value. As a result, when the liquid level in the tank reaches a threshold value, the electric blower stops, thereby preventing the liquid from being sucked in when the liquid level exceeds the threshold value. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The electric blower includes at least a structure arranged at the upper, middle or lower side in the vertical direction, a structure arranged at the right, middle or left side in the left-right direction, and a structure arranged at the front, middle or rear side in the front-to-rear direction. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to a member supporting the tank and a structure detachable from the support member. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure without a detection unit. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partitioning unit and the second partitioning unit of the fifth cleaning device of invention 4, and a structure without the first partitioning unit and the second partitioning unit. The tank section includes at least a structure having a receiving unit of the first or third cleaning device of invention 5 and a structure without a receiving unit. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the second cleaning device of Invention 5, and a structure having neither the first partition section nor the second partition section.The tank section includes at least a structure having at least one of the first partition section and the second partition section of the second cleaning device of Invention 5, and a structure having neither the first partition section nor the second partition section. The detection unit includes at least a non-contact sensor such as an electromagnetic or ultrasonic sensor, a contact sensor such as a pressure sensor, and a structure for non-contact detection of a float that moves up and down in accordance with the liquid level. The control unit includes at least control by a program and control by circuits such as switching elements and fuses. The control unit includes at least a structure having the function of the control unit of the third cleaning device of the sixth invention and a structure not having the function of the control unit.

[0104] A second cleaning device according to the fourth aspect of the present invention is an electric blower capable of sucking air and liquid and generating a suction force; A tank portion for storing the sucked liquid; A detection unit that detects a liquid level in the tank unit; A control unit for controlling the electric blower, the detection unit includes a float having a magnet and moving up and down according to the liquid level in the tank unit, and a sensor for detecting a magnetic field of the magnet; The control unit stops the electric blower when the magnetic field is detected by the sensor. This causes the electric blower to stop when the float reaches a predetermined position, thereby preventing liquid from being sucked in beyond a threshold value. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The electric blower includes a structure that is disposed at the upper, middle or lower part in the vertical direction and at one side, center or other part in the left-right direction. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to a member supporting the tank and a structure detachable from the support member. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section or the tank is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure not having a detection unit. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the fifth cleaning device of invention 4, and a structure not having the first partition section and the second partition section. The tank section includes at least a structure having a receiving unit of the first or third cleaning device of invention 5 and a structure not having a receiving unit. The tank portion includes at least a structure having at least one of the first partition portion and the second partition portion of the second cleaning device of the fifth invention, and a structure having neither the first partition portion nor the second partition portion. The float includes at least a structure in which it is disposed in a storage section, a structure in which its vertical movement is restricted by a guide section, and a structure in which it is disposed in a tank section in which no storage section or guide section is provided. The float may be disposed on one side in the left-right direction as in the fourth cleaning device, on the other side, or in the middle. The control unit at least includes control by a program and control by circuits such as switching elements and fuses. The control unit at least includes a structure having the functions of the control unit of the third cleaning device of invention 6, and a structure not having the functions of the control unit. The substrate of the control unit at least includes a structure having the partition unit of the first cleaning device of invention 8, and a structure not having the partition unit, on a support member that supports the electric blower.

[0105] A third cleaning device according to a fourth aspect of the present invention is the first cleaning device, the detection unit includes a float having a magnet and moving up and down according to the liquid level in the tank unit, and a sensor for detecting a magnetic field of the magnet; The float is disposed in a housing portion of the tank portion. This makes the trajectory of the float's up and down movement constant, improving detection accuracy. The float may be disposed on one side in the left-right direction as in the fourth cleaning device, or on the other side, or in the middle.

[0106] A fourth cleaning device according to a fourth aspect of the present invention is any one of the first to third cleaning devices, the tank portion has a first opening on one side in a left-right direction through which the air and liquid sucked by the electric blower flow in, and a second opening on the other side in the left-right direction which communicates with an air intake port of the electric blower, The float is disposed on the other side in the left-right direction. On the other side in the left-right direction is a second opening through which the electric blower draws in the liquid, and the liquid level in the tank tends to rise due to the suction while the electric blower is in operation. Because the float is provided on the other side in the left-right direction, the sensor detects a higher liquid level, making it difficult for the liquid accumulated in the tank to be drawn in by the electric blower.

[0107] A fifth cleaning device according to a fourth aspect of the present invention is any one of the first to fourth cleaning devices, The tank has a first partition protruding from one side to the other side in a direction parallel to the direction in which the electric blower and the tank face each other, and a second partition protruding from the other side to one side in the parallel direction. This stabilizes the liquid level and prevents the liquid from being sucked into the electric blower. The direction in which the electric blower and the tank portion face each other includes at least the front-rear direction, the left-right direction, the up-down direction, and directions intersecting these. The cleaning device according to the fourth invention may or may not include the configurations of the other inventions. In other words, the fourth invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0108] 5. Invention 5 The surface cleaning device of Patent Document 2 described in Invention 1 is long in the vertical direction, and even if fluid flows forcefully into the collection tank container and splashes, the collection tank container and the suction source are separated in the vertical direction, so the fluid is rarely sucked into the suction source. However, if the electric blower and the tank are close to each other, splashes caused by the liquid that flows forcefully into the tank section may cause the liquid to flow into the electric blower side. The fifth aspect of the present invention is to provide a cleaning device capable of preventing water splashes generated by the suction of liquid from flowing into the electric blower.

[0109] A first cleaning device according to the fifth aspect of the present invention is A cleaning device capable of sucking air and liquid, a main body having an electric blower that generates a suction force, an inlet through which liquid sucked by the electric blower flows, and an outlet that communicates with an intake port of the electric blower; a tank portion provided in the main body portion and configured to store the sucked liquid; and a receiving portion for receiving the liquid flowing in from the inlet. As a result, the liquid sucked by the electric blower is temporarily received in the receiving portion, reducing the force of the liquid and making it difficult for water splashes to occur, thereby preventing water splashes from flowing toward the electric blower. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The electric blower includes a structure arranged at the upper, middle or lower side in the vertical direction, a structure arranged at the right, middle or left side in the left-right direction, and a structure arranged at the front, middle or rear side in the front-to-back direction. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to a member supporting the tank and a structure detachable from the support member. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section (tank) is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure not having a detection unit. The tank section includes a structure arranged at least on the front side, center side, and rear side in the front-rear direction, a structure arranged at least on the right side, center side, and left side in the left-right direction, and a structure arranged at least on the upper side, center side, and lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partitioning unit and the second partitioning unit of the fifth cleaning device of invention 4, and a structure not having the first partitioning unit and the second partitioning unit. The tank portion includes at least a structure having at least one of the first partition portion and the second partition portion of the second cleaning device of the fifth invention, and a structure having neither the first partition portion nor the second partition portion. The receiving portion includes at least a structure provided in the tank portion, a structure provided in the main body portion, and a structure provided in both the tank portion and the main body portion. It includes at least a structure with a lid portion of the sixth cleaning device of the fifth invention, and a structure without a lid portion.

[0110] A second cleaning device according to a fifth aspect of the present invention is a cleaning device capable of sucking air and liquid, comprising: A main body having an electric blower that generates suction force; a tank portion for storing the liquid sucked by the electric blower, the main body has an inlet through which the sucked liquid flows and an outlet communicating with an air intake port of the electric blower on both sides in a first direction; The tank portion has a first opening for connecting the internal space with the inlet, a second opening for connecting the internal space with the outlet, and a partition portion extending along a second direction perpendicular to the first direction and the up-down direction and separating the first opening from the second opening. As a result, even if splashes of liquid are generated by the electric blower, the partition portion can prevent the splashes from flowing toward the electric blower. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The electric blower includes a structure that is disposed at the upper, middle or lower part in the vertical direction and at one side, center or other part in the left-right direction. The first direction includes a front-rear direction, a left-right direction, and a direction intersecting at least one of these directions. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to a member supporting the tank and a structure detachable from the support member. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section (tank) is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure not having a detection unit. The tank section includes a structure arranged at least on the front side, center side, and rear side in the front-rear direction, a structure arranged at least on the right side, center side, and left side in the left-right direction, and a structure arranged at least on the upper side, center side, and lower side in the up-down direction. The tank section includes at least a structure having a receiving unit of the first or third cleaning device of invention 5 and a structure not having a receiving unit.

[0111] A third cleaning device according to a fifth aspect of the present invention is the second cleaning device, A receiving portion is provided for receiving the liquid flowing in from the inlet. Since the liquid sucked by the electric blower is temporarily received in the receiving portion, the force of the liquid is reduced, making it difficult for water splashes to occur and preventing water splashes from flowing toward the electric blower. The receiving part includes at least a structure provided in the tank part, a structure provided in the main body part, and a structure provided in the tank part and the main body part. The receiving part includes at least a structure detachable from the main body part, and a structure fixed to the main body part. It includes at least a structure with a lid part of the sixth cleaning device of the fifth invention, and a structure without a lid part.

[0112] A fourth cleaning device according to a fifth aspect of the present invention is the first or third cleaning device, The receiving portion is detachable from the main body portion. This allows the receiving part to be removed for cleaning. The receiving portion includes a structure in which it is detachably provided on the main body portion, and a structure in which it is provided on the tank portion and the tank portion is detachably provided on the main body portion.

[0113] A fifth cleaning device according to a fifth aspect of the present invention is any one of the first, third, and fourth cleaning devices, The tank portion is provided on one side of the main body portion in a front-rear direction, The receiving portion has a peripheral wall extending along the front-rear direction of the main body portion, and a discharge port communicating with the storage portion of the tank portion. This allows the sucked fluid to be smoothly sent to the reservoir. The receiving portion includes at least a structure in which the receiving portion is provided on the main body portion side (external side of the tank portion) and sends the received liquid to the tank portion (storage portion), a structure in which the receiving portion is provided inside the tank portion having one tank and sends the received liquid to the storage portion of the tank portion, and a structure in which the receiving portion is provided in a first tank of a tank portion having multiple tanks and sends the received liquid to a storage portion of a second tank portion other than the first tank. The receiving portion includes at least a structure provided on the front side and a structure provided on the rear side.

[0114] A sixth cleaning device according to a fifth aspect of the present invention is any one of the first, third to fifth cleaning devices, The receiving portion has a detachable cover portion at a position opposite to the inlet. This allows the lid to be removed for cleaning. Also, liquid that flows in forcefully from the inlet collides with the lid and flows downward, reducing splashes. The cleaning device according to the fifth invention may or may not include the configurations of the other inventions. In other words, the fifth invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0115] 6. Invention 6 The surface cleaning device of Patent Document 2 described in Invention 1 may suck up fluid even if the recovery tank container is not attached. A sixth aspect of the present invention is to provide a cleaning device capable of preventing liquid from leaking into a tank housing space that houses a tank portion.

[0116] A first cleaning device according to the sixth aspect of the present invention is A cleaning device capable of sucking air and liquid, A main body having an electric blower that generates suction force; a tank portion provided in the main body portion and configured to store the sucked liquid; and a detection unit that detects the mounting state of the tank unit. This allows the user to recognize whether the tank is attached or not, and prevents the user from using the device without the tank portion attached. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-to-rear direction, a structure in which the rotating shaft is arranged in the left-to-right direction, a structure in which the rotating shaft is arranged in the up-to-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear direction, the left-to-right direction, and the up-to-down direction. The electric blower includes a structure arranged at the upper, central or lower side in the vertical direction, a structure arranged at the right, central or left side in the left-right direction, and a structure arranged at the front, central or rear side in the front-to-back direction. The tank section includes at least a structure having one tank and a structure having multiple tanks. When the tank section includes multiple tanks, the tank section includes at least a structure in which one or more tanks are detachable. In this case, the detection section detects the mounting state of the detachable tank. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the fifth cleaning device of invention 4, and a structure not having the first partition section and the second partition section. The tank section includes at least a structure having the receiving section of the first or third cleaning device of invention 5, and a structure not having the receiving section. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the second cleaning device of invention 5, and a structure not having the first partition section and the second partition section.

[0117] A second cleaning device according to a sixth aspect of the present invention is the first cleaning device, The detection portion is provided at a position of the main body facing the tank portion. This allows the mounting state of the tank portion to be detected with high accuracy. The detection portion includes at least a non-contact type sensor that utilizes light, ultraviolet light, ultrasonic waves, magnetism, or the like, or a contact type sensor such as a button switch or a magnet sensor.

[0118] A third cleaning device according to a sixth aspect of the present invention is the first or second cleaning device, The device further includes a control unit that prevents the electric blower from being turned on even if an operation switch of the electric blower is turned on while the detection unit is not detecting the mounted state. As a result, even if a user attempts to use the device without the tank portion attached, the device will not operate, making it possible to prevent liquid from leaking. The main body portion includes at least a structure having a partition portion of the first cleaning device of the eighth invention and a structure having no partition portion. The cleaning device according to the sixth invention may or may not include the configurations of the other inventions. In other words, the sixth invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0119] 7. Invention 7 The surface cleaning device of Patent Document 1 described in the Background Art section is equipped with a collection tank container, but this may be difficult to use. Invention 7 aims to realize a cleaning device in which the recovery tank container is configured to be detachable and which is easy to use for cleaning the tank portion.

[0120] A first cleaning device according to the seventh aspect of the present invention is a main body portion having an electric blower capable of sucking air and liquid and generating a suction force; a tank section that is detachably provided on the main body section and that stores the sucked liquid; Preparation, The tank portion has a first tank and a second tank that is detachable from the first tank. This makes it easy to use, as the first and second tanks can be separated when draining or cleaning. The electric blower includes at least a structure in which the rotating shaft is arranged in the front-rear direction, a structure in which the rotating shaft is arranged in the left-right direction, a structure in which the rotating shaft is arranged in the up-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-rear direction, the left-right direction, and the up-down direction. The electric blower includes a structure in which the rotating shaft is arranged on the upper, middle, or lower side in the up-down direction, a structure in which the rotating shaft is arranged on the right, middle, or left side in the left-right direction, and a structure in which the rotating shaft is arranged on the front, middle, or rear side in the front-rear direction. The main body portion includes at least a structure having an inlet and an outlet in the front-rear direction, and a structure having an inlet and an outlet in the left-right direction. The tank section includes at least a structure having a detection section of the first cleaning device of invention 6 with respect to the second tank, and a structure not having a detection section. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having a float of the second or third cleaning device of invention 4, and a structure not having a float. The tank section includes at least a structure having at least one of the first partition section and the second partition section of the second cleaning device of invention 7, the fifth cleaning device of invention 4, and the second cleaning device of invention 5, and a structure not having the first partition section and the second partition section. The tank section includes at least a structure having a receiving section of the first or third cleaning device of invention 5, and a structure not having the receiving section.

[0121] A second cleaning device according to a seventh aspect of the present invention is the first cleaning device, the main body has an inlet through which the sucked liquid flows in on one side in a left-right direction, and an outlet on the other side in the left-right direction that communicates with an air intake port of the electric blower, The tank portion has a first opening for connecting the internal space with the inlet, a second opening for connecting the internal space with the outlet, and a partition portion extending along a front-to-rear direction perpendicular to the left-to-right direction and separating the first opening from the second opening. As a result, even if splashes of liquid are generated by the electric blower, the partition portion can prevent the splashes from flowing toward the electric blower.

[0122] A third cleaning device according to a seventh aspect of the present invention is the first or second cleaning device, further comprising a receiving portion that is disposed in the tank portion and receives liquid flowing into the tank portion. As a result, the liquid sucked by the electric blower is temporarily received in the receiving portion, reducing the force of the liquid and making it difficult for water splashes to occur, thereby preventing water splashes from flowing toward the electric blower. The receiving part includes at least a structure provided in the tank part, a structure provided in the main body part, and a structure provided in the tank part and the main body part. The receiving part includes at least a structure detachable from the main body part, and a structure fixed to the main body part. It includes at least a structure with a lid part of the sixth cleaning device of the fifth invention, and a structure without a lid part. A fourth cleaning device according to a seventh aspect of the present invention is the third cleaning device, wherein the receiving portion is detachably attached to the tank portion. This allows the receiving part to be removed for cleaning. The cleaning device according to the seventh invention may or may not include the configurations of the other inventions. In other words, the seventh invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0123] 8. Invention 8 The surface cleaning device of Patent Document 2 described in Invention 1 has a user interface located on the handle, so there is little risk of it getting wet with fluid. However, in order to make the device smaller, the control unit and the tank unit are close to each other, so there is a possibility that the control unit may get wet with liquid. An eighth aspect of the present invention is to provide a cleaning device that can prevent the control unit from getting wet with liquid and can be made smaller in size.

[0124] A first cleaning device according to the eighth aspect of the present invention is A cleaning device capable of sucking air and liquid, A main body including an electric blower that generates a suction force and a control unit that controls the operation of the electric blower; a tank portion attached to the main body portion, the main body portion has a first case in which the tank portion is provided and a second case attached to the first case, A substrate for the control unit is provided in the first case, A partition is provided above the substrate so as to span the first case and the second case. This makes it difficult for the substrate to be wetted by liquid from above. The electric blower includes a structure arranged at the upper, middle or lower side of the main body in the up-down direction, a structure arranged at the right, middle or left side of the main body in the left-right direction, and a structure arranged at the front, middle or rear side of the main body in the front-to-rear direction.The electric blower includes at least a structure in which the rotating shaft is arranged in the up-down direction, and a structure in which the rotating shaft is arranged in a direction intersecting at least one of the front-to-rear, left-to-right and up-to-down directions.The electric blower includes at least a structure provided in a first case, a structure provided in a second case, and a structure provided so as to straddle the first case and the second case. The board of the control unit is mounted with at least a part or all of the circuitry that controls the electric blower, and may or may not be mounted with electrical components for controlling other electrical components. The tank section includes at least a structure having one tank and a structure having multiple tanks. The tank section includes at least a structure fixed to the first case and a structure detachable from the first case. When the tank section includes multiple tanks, it includes at least a structure in which one or more tanks are detachable. When the tank section (tank) is detachable, it includes at least a structure having a detection unit of the first cleaning device of invention 6 and a structure not having a detection unit. The tank section includes a structure arranged at least on the front side, the center side, and the rear side in the front-rear direction, a structure arranged at least on the right side, the center side, and the left side in the left-right direction, and a structure arranged at least on the upper side, the center side, and the lower side in the up-down direction. The tank section includes at least a structure having at least one of the first partition unit and the second partition unit of the second cleaning device of invention 7, the fifth cleaning device of invention 4, and the second cleaning device of invention 5, and a structure not having the first partition unit and the second partition unit. The tank portion includes at least a structure having the receiving portion of the first or third cleaning device of the fifth invention, and a structure not having the receiving portion. The main body portion includes at least a structure having a battery below the substrate, a structure having no battery, and a structure having a battery in a position other than below the substrate.

[0125] A second cleaning device according to an eighth aspect of the present invention is the first cleaning device, The electric blower is disposed on one side of the main body in the left-right direction, and the base plate is disposed on the other side in the left-right direction. This makes it difficult for heat from the electric blower to be transmitted to the board.

[0126] The main body has a battery below the board. This also makes it difficult for the battery to become wet with liquid from above. Batteries include nickel-metal hydride / nickel-cadmium batteries, lithium-ion batteries, etc. The cleaning device according to the eighth invention may or may not include the configurations of the other inventions. In other words, the eighth invention is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions.

[0127] 9. Invention 9 The surface cleaning device of Patent Document 2 described in Invention 1 is a vacuum cleaner equipped with a supply tank for delivering fluid, a handle assembly, a suction nozzle, and a collection tank container, and so the device tends to be large. Invention 9 is to realize a cleaning device that can be made compact. In the hand tool 4 of the cleaning device of Patent Document 1 described in the Background Art section, the lever 412 of the discharge part 41 extends between the suction part 42 having a handle function and the fresh water tank 45 in approximately parallel relation.

[0128] A first cleaning device according to the ninth aspect of the present invention is A cleaning device capable of sucking air and liquid, A main body having an electric blower that generates suction force; A tank for storing liquid to be discharged; a nozzle portion having a suction port communicating with the main body portion and a discharge port for discharging the liquid in the tank; A handle portion provided on the nozzle portion; and an operation unit that receives an operation for discharging the liquid in the tank from the discharge port. This makes it possible to realize a cleaning device that can be made compact. A second cleaning device according to a ninth aspect of the present invention is the first cleaning device, wherein the operation unit is disposed between the handle portion and the tank, The handle portion is inclined with respect to a plane that contacts the cleaning surface of the nozzle portion. This reduces the strain on the wrist when the nozzle portion is brought into contact with the surface to be cleaned. A third cleaning device according to a ninth aspect of the present invention is the first or second cleaning device, A portion of the tank protrudes toward the handle. This allows for a larger tank. The configuration of the main body having the electric blower is not particularly limited, and includes at least a structure having or not having the main body of the cleaning device of invention 3, and inventions 5 to 8. The liquid may be discharged manually or electrically.

[0129] A fourth cleaning device according to a ninth aspect of the present invention is any one of the first to third cleaning devices, The operating portion is a button or a lever. This makes it easy to implement. The cleaning device according to the ninth aspect may or may not include the configurations of the other inventions. In other words, the ninth aspect is a technical idea different from the other inventions, and is not limited by the configurations of the other inventions. [Explanation of symbols]

[0130] X Cleaning device 1. Device body 3. Hand Tools 5 Hose 11 Main body 12 Tank section 23 Blower unit 27 Power supply unit 29 Circuit Unit 31 cases 33 Suction flow path component 35 Exhaust flow path component 37 Detection Unit 51 Case 1 151 Case 2

Claims

1. In a device capable of sucking air and liquid, An electric blower that generates suction force; an exhaust flow path through which exhaust from the electric blower passes; With the case, the exhaust flow path has an exhaust port for discharging exhaust gas from the electric blower, The electric blower is disposed at an upper portion of the case in a vertical direction and on one side of the case in a left-right direction, The exhaust port is disposed below the electric blower in the vertical direction. Cleaning equipment.

2. The discharge port is disposed on the bottom side in the up-down direction and on the other side in the left-right direction.

2. The cleaning device of claim 1.

3. The discharge flow path has a bent flow path between one end and the other end.

3. The cleaning device according to claim 1 or 2.

4. The discharge flow path is substantially L-shaped.

3. The cleaning device according to claim 1 or 2.

5. The exhaust port is provided in plurality. The cleaning device according to any one of claims 1 to 4.

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