JP2006181040A - Liquid tank for wet vacuum cleaner - Google Patents

Abstract

A liquid supply tank for a wet electric vacuum cleaner is provided which is easy to inject a cleaning liquid, is excellent in dischargeability of the cleaning liquid, and has less burden on the user due to the mass of the liquid supply tank.
A liquid supply tank for supplying the cleaning liquid to the injection nozzle in a wet type vacuum cleaner that injects a cleaning liquid onto the object to be cleaned from an injection nozzle and sucks dirt on the object to be cleaned together with moisture and air, A tank body 71 for storing the cleaning liquid is provided, and an upper part of the tank body 71 is provided with a liquid inlet for injecting the cleaning liquid therein. A lower part of the tank body 71 is provided from the inside thereof. A liquid discharge port 78 for discharging the cleaning liquid and tank legs 77A to 77C that protrude downward from the liquid discharge port 78 and stand the tank main body 71 independently are provided. It is inclined toward the liquid discharge port 78 and is detachable from the housing of the wet type vacuum cleaner.
[Selection] Figure 6

Description

  The present invention relates to a liquid supply tank for supplying a cleaning liquid to an injection nozzle in a wet type vacuum cleaner that injects a cleaning liquid onto an object to be cleaned from an injection nozzle and sucks dirt on the object to be cleaned together with moisture and air.

  2. Description of the Related Art Conventionally, a wet type vacuum cleaner that sucks dirt on an object to be cleaned together with moisture and air while ejecting a cleaning liquid from the injection nozzle inside the suction nozzle to the object to be cleaned has been used mainly for business use. Such a wet vacuum cleaner is usually provided with a liquid supply tank for supplying a cleaning liquid to the injection nozzle (see Patent Documents 1 and 2 below).

JP 2000-201874 A JP 2000-201873 A

  However, the liquid supply tank in the wet type vacuum cleaners described in Patent Documents 1 and 2 cannot stand up independently from the shape of the outer bottom thereof, and the operation of injecting the cleaning liquid into the liquid supply tank is not easy. Further, in these liquid supply tanks, it is difficult for the cleaning liquid inside thereof to be completely discharged from the shape of the inner bottom portion, and it is desired to improve the dischargeability of the cleaning liquid. Furthermore, since these liquid supply tanks are provided on a substantially bar-shaped handle extending upward from the base housing of the wet electric vacuum cleaner, the mass of the liquid supply tank is directly applied to the arm or shoulder of the user holding the handle. In addition, it puts a burden on the user.

  Accordingly, an object of the present invention is to provide a liquid supply tank for a wet electric vacuum cleaner, which is easy to inject the cleaning liquid, has excellent dischargeability of the cleaning liquid, and has less burden on the user due to the mass of the liquid supply tank. It is in.

  The present invention is a liquid supply tank that supplies the cleaning liquid to the injection nozzle in a wet type vacuum cleaner that injects the cleaning liquid from the injection nozzle onto the object to be cleaned and sucks dirt on the object to be cleaned together with moisture and air, A tank main body for storing cleaning liquid is provided, and a liquid inlet for injecting the cleaning liquid is provided in the upper part of the tank main body, and the cleaning liquid is discharged from the lower part of the tank main body. And a tank leg that protrudes downward from the liquid discharge port and raises the tank main body independently, and an inner bottom portion of the tank main body is inclined toward the liquid discharge port. And the said objective is achieved by providing the liquid supply tank for wet vacuum cleaners which can be attached or detached to the housing of the said wet vacuum cleaner.

  According to the liquid supply tank for a wet vacuum cleaner of the present invention, the cleaning liquid can be easily injected, the cleaning liquid can be easily discharged, and the burden on the user due to the mass of the liquid supply tank is small.

A preferred embodiment of a liquid supply tank for a wet electric vacuum cleaner (hereinafter simply referred to as “liquid supply tank”) of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the liquid supply tank 17 of the present embodiment is a wet type vacuum cleaner that injects a cleaning liquid W from an injection nozzle 51 onto an object to be cleaned and sucks dirt on the object to be cleaned together with moisture and air. 1 is a liquid supply tank for supplying the cleaning liquid W to the spray nozzle 51 in FIG.

  The liquid supply tank 17 includes a suction nozzle 11 that sucks dirt and moisture together with air, a suction hose 12 that conducts a mixed flow A of dirt, moisture, and air sucked from the suction nozzle 11, and the mixed flow A. An air / water separator 13 for separating dirt and moisture from the air, and an electric fan 15 having an output of 1.5 kW or less that sucks and exhausts air C ′ substantially separated from the dirt and moisture by the air / water separator 13; In addition, it is used as a liquid supply tank in the wet type vacuum cleaner 1 provided with the dirt separated from the mixed stream A and the sewage tank 14 for storing water (sewage B).

The liquid supply tank 17 of this embodiment will be described in further detail. As shown in FIGS. 3 and 4, the liquid supply tank 17 of the present embodiment is detachable from the liquid supply tank storage portion 21 on the rear side of the housing 20 of the wet vacuum cleaner 1 (the side without the suction hose 12). (Details will be described later).
As shown in FIGS. 5 to 7, the liquid supply tank 17 of the present embodiment has a tank body 71 that stores the cleaning liquid W. The tank body 71 has a substantially rectangular shape in a front view, a substantially U shape in a plan view, and a substantially rectangular shape in a side view. The tank main body 71 can visually recognize the cleaning liquid W therein. It is made of a synthetic resin or glass. The tank main body 71 is formed by integral molding by hollow molding or by laminating members that form the tank main body. Therefore, the liquid supply tank 17 is transparent and can visually recognize the cleaning liquid W therein. The tank main body 71, in plan view, bulges from the front side (the side without the suction hose 12 when attached to the housing 20) to the back side (opposite side of the front side). A tank back bulge portion 72 and a tank back recess 73 are formed between them.

As shown in FIG. 2, a liquid injection port 74 </ b> A for injecting the cleaning liquid W is provided in the upper portion of the tank body 71. The liquid injection port 74A is closed by a tank cap 74. The tank cap 74 is provided with an air conduction hole 74B that communicates the inside and the outside of the tank main body 71 via the liquid injection port 74A.
A tank handle 75 that is recessed from the front to the rear is provided on the front of the tank body 71. The tank handle 75 can be hooked when carrying the tank body 71.

The tank bottom 76 at the bottom of the tank body 71 is provided with a liquid discharge port 78 for discharging the cleaning liquid W from the inside.
As shown in FIG. 2, the liquid discharge port 78 is provided with an on-off valve 78A. When the liquid supply tank 17 is attached to the liquid supply tank storage part 21 of the housing 20, the open / close valve 78 </ b> A has an open / close valve operating pin (not shown) provided in the liquid supply tank storage part 21. The cleaning liquid W in the tank main body 71 is discharged from the liquid discharge port 78. Under other conditions, the on-off valve 78A is closed, and the cleaning liquid W in the tank main body 71 is discharged from the liquid discharge port 78. It is designed not to be discharged from.

In the present invention, even when the liquid discharge port 78 is not provided in the tank bottom 76 of the tank main body 71, the liquid discharge port 78 is provided on the side surface of the tank main body 71 at a position close to the tank bottom 76. It is assumed that it is provided in the lower part of the tank body 71.
As shown in FIG. 2, a mesh material 78 </ b> B that captures foreign matter in the cleaning liquid W and filters the cleaning agent W is disposed above the liquid discharge port 78 in the tank body 71.
The size of the mesh for filtering the cleaning liquid W in the mesh material 78 </ b> B can be changed as appropriate so that the cleaning liquid W can be prevented from being clogged with foreign matter in the spray nozzle 51.

Three tank legs 77 </ b> A to 77 </ b> C projecting downward from the liquid discharge port 78 are provided on the tank bottom 76 at the bottom of the tank body 71. Since the three tank leg portions 77A to 77C are provided so as to protrude downward from the liquid discharge port 78, the tank body 71 stands alone on the floor or the like (even if it is not attached to the housing 20). To get.
As shown in FIG. 2, the inner bottom portion 76 </ b> A of the tank body 71 is inclined toward the liquid discharge port 78.

  The capacity of the liquid supply tank 17 of the present invention is preferably 3 L (liters) or less in consideration of the compactness of the wet type vacuum cleaner that employs the liquid supply tank 17. In addition, the relationship between the capacity of the liquid supply tank 17 and the sewage tank 14 is set such that the capacity of the liquid supply tank 17 is set smaller than the capacity of the sewage tank 14. It is preferable to set it to about 1.1 to 1.5 times the capacity of the tank 17.

The wet type vacuum cleaner 1 to which the liquid supply tank 17 of the present embodiment is attached will be further described in detail.
The suction nozzle 11 sucks sewage together with air. In the present embodiment, as shown in FIG. 1, the suction nozzle 11 is a hollow body having a divergent shape in a plan view, the tip of which is open, and the object to be cleaned It is a contact surface. Inside the suction nozzle 11, as shown in FIG. 2, an injection nozzle 51 for injecting the cleaning liquid W is provided.
As shown in FIG. 2, the wet electric vacuum cleaner 1 of the present embodiment has a liquid feed pump 53 that sends out the cleaning liquid W in the liquid feed tank 17, and a connection that connects the liquid feed pump 53 and the liquid feed tank 17. A tube 54 and a liquid supply tube 52 for supplying the cleaning liquid W to the ejection nozzle 51 through the connection tube 54 by driving the liquid supply pump 53 are provided.

As shown in FIG. 1, the suction hose 12 and the liquid feeding tube 52 are exposed from the front surface of the housing 20, and both are connected to the suction nozzle 11 in parallel.
The injection nozzle 51 is connected to the liquid supply tube 52, and the cleaning liquid W supplied from the liquid supply tube 52 is injected from the tip of the injection nozzle 51 toward the object to be cleaned.
The spray nozzle 51 can be selected according to the object to be cleaned, such as a type that gently sprays the cleaning liquid in a mist form or a type that sprays the cleaning liquid in a straight line. In this embodiment, what is sprayed in mist form is used.

As shown in FIGS. 1 and 2, the suction hose 12 communicates the suction nozzle 11 and the sewage tank 14, and introduces a mixed flow A of sewage and air sucked from the suction nozzle 11 into the sewage tank 14. Is.
As shown in FIG. 2, one end portion 12 </ b> A of the suction hose 12 communicates with the inside of the suction nozzle 11, and the other end portion 12 </ b> B is fitted to the sewage introduction port 14 </ b> A of the sewage tank 14.
As the suction hose 12, a suction hose conventionally used for a wet vacuum cleaner can be used without any particular limitation. For example, the outer surface is a bellows-like hose, the outer surface is a bellows-like, and the inner surface is smooth. And a hose having a smooth outer surface. In the present embodiment, a hose having a bellows-like outer side and a smooth inner side is used from the viewpoint of preventing sewage from staying and adhering to the inner surface of the hose while ensuring the ease of bending of the hose.

  As shown in FIG. 2, the sewage tank 14 is a tank that stores dirt and moisture (sewage B) separated from the mixed stream A. As shown in FIG. 8, the sewage tank 14 is disposed in the sewage tank storage part 24B on the front side of the housing 20, and as shown in FIG. 10, the cross section expands from the bottom to the upper opening. It has a substantially cylindrical shape. The sewage tank 14 is formed of a transparent material so that the sewage B stored in the sewage tank 14 can be visually recognized.

  As shown in FIG. 10, a sewage introduction port 14 </ b> A connected to the other end 12 </ b> B of the suction hose 12 is provided above the outer peripheral surface of the sewage tank 14. Two positioning protrusions 14B are provided at the peripheral edge of the upper opening of the sewage tank 14 with a 180 ° gap in the circumferential direction. As shown in FIG. 8, the positioning overhanging portion 14 </ b> B is engaged with the recess 24 </ b> C provided in the sewage tank storage portion 24 </ b> B of the housing 20, thereby positioning the sewage tank 14 with respect to the sewage tank storage portion 24 </ b> B of the housing 20. It can be done.

  As shown in FIG. 2, the steam / water separator 13 has a function of separating the sewage B from the mixed flow A introduced through the suction hose 12 and the sewage tank 14. As shown in FIGS. 1, 2, 8, and 9, the air / water separator 13 separates air / water on the front side of the housing 20 in a state where the sewage tank 14 is stored in the sewage tank storage portion 24B. It is attached to the container storage section 24A and is arranged above the sewage tank 14.

  As shown in FIG. 9, the steam separator 13 is provided with a separation blade member 13 </ b> B at the lower part thereof. The separation blade member 13B has a bottomed bowl shape, and a large number of blades are arranged at the periphery. A rotation mechanism (not shown) for rotating the separation blade member 13B is provided inside the upper part 13A of the steam / water separator 13. A discharge part 13C is provided on the back side of the upper part 13A of the steam separator 13.

In the steam / water separator 13, the separation blade member 13B is moved by the rotating mechanism under a state where the suction force from the separation blade member 13B toward the discharge portion 13C is exerted by the suction force (details will be described later) by the electric fan 15. By rotating, the separation blade member 13B separates most of the sewage B from the mixed flow A in the sewage tank 14, and discharges air C ′ (see FIG. 2) from which the sewage B is substantially separated from the mixed flow A. It can be discharged from 13C.
The sewage B separated from the mixed stream A in the steam / water separator 13 falls and is stored in the sewage tank 14.

The electric fan 15 (see FIG. 2, not shown in other than FIG. 2) is provided inside the housing 20 below the housing handle 25 provided at the upper center of the housing 20. As shown in FIG. 2, the electric fan 15 sucks from the suction part 15 </ b> A and exhausts to the outside from the exhaust part 15 </ b> B, so that it goes from the suction nozzle 11 to the steam separator 13 through the suction hose 12 and the sewage tank 14. It generates a suction force for the path. As shown in FIG. 2, the air C ′ obtained by substantially separating the sewage B from the mixed flow A sucked from the suction unit 15A is discharged into the outside air from the exhaust unit 15B.
As the electric fan 15, an electric fan having a power output of 1.5 kW or less is preferable in terms of downsizing a wet vacuum cleaner or using it in a general home, but 1.2 kW depending on conditions such as an object to be cleaned. The following or 1.0 kW or less can be used.

Between the discharge part 13C of the steam separator 13 and the suction part 15A of the electric fan 15, as shown in FIG. 2, a small amount of sewage remaining in the mixed flow A from which sewage has been substantially removed is adsorbed and separated. A filter 16 is provided.
Any filter 16 can be used without limitation as long as it can adsorb and separate the trace amount of sewage from the mixed stream A.

  As shown in FIG. 4, at the bottom of the liquid supply tank storage portion 21 of the housing 20, the leg fitting portions 21 </ b> A to 21 </ b> A to 21 </ b> A correspond to the tank legs 77 </ b> A to 77 </ b> C and the liquid discharge port 78 of the liquid supply tank 17. 21C and the discharge port receiving part 22 are provided. In addition, the liquid supply tank storage portion 21 is provided with a housing protruding portion 23 that bulges toward the back surface of the housing 20 in correspondence with the tank back recessed portion 73 of the liquid supply tank 17.

The electric fan 15, the sewage tank 14, the liquid feed pump 53, the connecting tube 54 and the like are housed in the housing 20. As shown in FIGS. 1 and 3, a switch 26 is provided on the upper portion of the housing 20. At the lower part of the housing 20, a front wheel and a rear wheel (not shown) for moving the wet type vacuum cleaner 1 are provided.
The tank main body 71 of the liquid supply tank 17 and the upper part 13A of the steam / water separator 13 constitute a part of the appearance of the wet vacuum cleaner 1 when mounted on the housing 20, as shown in FIGS. is doing.

The liquid feeding tube 52, the connecting tube 54, and the liquid feeding pump 53 are not particularly limited in material, shape, size, and the like as long as they fulfill the functions required for each.
As the cleaning liquid, an appropriate one containing a detergent is used according to the object to be cleaned. You may use the water which does not contain a detergent.

The liquid supply tank 17 of the present embodiment configured as described above is detachable from the housing 20 by attaching and detaching the tank bottom 76 and the tank legs 77A to 77C to the liquid supply tank storage part 21. More specifically, as shown in FIGS. 3 to 7, the tank bottom portion 76 is fitted to the inner peripheral edge of the liquid supply tank storage portion 21, and the tank leg portions 77 </ b> A to 77 </ b> C are fitted to the leg fitting portions 21 </ b> A to 21 </ b> C. Match. Further, the tank back recess 73 fits into the housing protrusion 23, and the liquid discharge port 78 fits into the discharge port receiver 22.
That is, the tank bottom portion 76 and the tank leg portions 77 </ b> A to 77 </ b> C also serve as a positioning guide when the liquid supply tank 17 is mounted on the housing 20.

Next, as a method for using the wet vacuum cleaner 1 provided with the liquid supply tank 17 of the present embodiment, a case where a residential carpet is washed will be described below.
The suction nozzle 11 is brought into contact with a soiled portion of a carpet (not shown), the switch 26 is operated, the wet vacuum cleaner 1 is turned on, and the liquid feed pump 53 and the electric fan 15 are driven. Then, as shown in FIG. 2, the cleaning liquid W in the liquid supply tank 17 is sprayed from the spray nozzle 51 in the form of a mist through the connection tube 54 and the liquid feed tube 52 by driving the liquid feed pump 53. As a result, the carpet is cleaned with the sprayed cleaning liquid W, and the dirt is removed.

  Further, as shown in FIG. 2, the electric fan 15 drives the cleaning liquid W including the removed dirt from the suction nozzle 11 through the suction hose 12 and the sewage tank 14, and the hair, cotton dust, and dust adhered to the carpet. The air is sucked toward the steam separator 13 together with the dry dust such as air and the like. Hereinafter, these dirt, cleaning liquid and dry waste are collectively referred to as “dirt and moisture” or “sewage B”, and the dirt, moisture and air are collectively referred to as “mixed flow A”.

When the mixed stream A is introduced from the suction nozzle 11 through the suction hose 12 into the sewage tank 14, the water in the mixed stream A aggregates due to a sudden drop in atmospheric pressure, which becomes water droplets in the sewage tank 14. Fall into.
Further, the mixed flow A in the sewage tank 14 tends to flow between the blades of the separation blade member 13B in the steam separator 13, but the blades of the separation blade member 13B rotated by the rotating mechanism cause dirt and Moisture (sewage B) is struck down and further separated into air and water. Thereafter, as shown in FIG. 2, the air C ′ from which the sewage B is substantially separated from the mixed stream A is discharged from the discharge portion 13 </ b> C of the steam / water separator 13.

In the air C ′ discharged from the discharge portion 13C, dirt and moisture hardly remain, but the remaining dirt and moisture are almost completely removed when passing through the filter 16.
The air flow C that has passed through the filter 16 is sucked from the suction portion 15A of the electric fan 15 and discharged from the exhaust portion 15B.
Thus, according to the wet type vacuum cleaner 1 provided with the liquid supply tank 17 of this embodiment, dirt and moisture can be sucked while spraying the cleaning liquid, and the cleaning operation is easy.

In the liquid supply tank 17 of the present embodiment, the housing 20 of the wet type vacuum cleaner 1 is detachable, and a liquid injection port 74A for injecting a cleaning liquid is provided on the upper part of the tank main body 71. Since the tank legs 77A to 77C are provided at the bottom of the tank body, the tank body is detached from the housing 20 and moved to an appropriate place, and then the tank body is erected independently. The cleaning liquid can be injected into 71. Therefore, it is easy to inject the cleaning liquid.
In addition, in the cleaning liquid injection operation, a premixed cleaning liquid may be injected into the tank main body 71. The cleaning liquid detergent and water are separately injected into the tank main body 71, and then the liquid supply tank 17 is shaken. Then, the detergent and water may be mixed in the tank body 71 to form a cleaning liquid.

Since the tank legs 77A to 77C protrude downward from the liquid discharge port 78, the liquid discharge port 78 does not come into contact with the floor or the like when the liquid supply tank 17 is placed alone on the floor or the like. Leakage (discharge) of the cleaning liquid from the on-off valve 78A due to contact with the on-off valve 78A can be prevented.
Since the inner bottom portion 76A of the tank main body 71 is inclined toward the liquid discharge port 78, the discharge of the cleaning liquid is excellent, and the cleaning liquid in the tank main body 71 is smooth from the inside of the tank main body 71 without remaining in the inner bottom portion 76A. To be discharged.

  Since the tank legs 77 </ b> A to 77 </ b> C can be used as positioning guides when the liquid supply tank 17 is attached to the housing 20, the liquid drainage can be achieved simply by setting the liquid supply tank 17 in the liquid supply tank storage part 21 of the housing 20. The liquid supply tank 17 can be mounted at a predetermined position of the housing 20 without damaging the outlet 78. In addition, a lock mechanism for fixing the liquid supply tank 17 to the housing 20 is not required, and the liquid supply tank 17 is not attached to the housing 20 upside down by mistake.

Since the tank main body 71 constitutes a part of the appearance of the wet electric vacuum cleaner 1 when attached to the housing 20, a cover for covering the liquid supply tank 17 can be eliminated, and the entire wet electric vacuum cleaner can be made compact. Can be made.
Since the tank body 71 is transparent so that the cleaning liquid in the tank body 71 can be visually confirmed, the amount of the cleaning liquid in the tank body 71 can be easily confirmed visually, and the amount of the cleaning liquid injected when the cleaning liquid is replenished can be grasped. It is easy to grasp the remaining amount (replenishment time) of the cleaning agent at the time of use.

  Since the liquid injection port 74A is closed by the tank cap 74, the cleaning liquid does not spill from the liquid injection port 74A of the liquid supply tank 17 when the liquid supply tank 17 is carried or used. Further, since the tank cap 74 is provided with an air conduction hole 74B that communicates the inside and the outside of the tank main body 71 via the liquid injection port 74A, the cleaning liquid can be smoothly discharged from the on-off valve 78A of the liquid discharge port 78. To be done.

Furthermore, since the liquid supply tank 17 is attached to the housing 20, the mass of the liquid supply tank 17 is not directly applied to the user's arm or shoulder, and it is difficult for the user to be burdened.
Since the tank handle 75 is provided in the liquid supply tank 17, even when the liquid supply tank 17 is wet and slippery or a large amount of cleaning liquid is contained, the liquid supply tank 17 can be easily removed from the housing 20. Can be handled.

  Since the on-off valve 78A is provided at the liquid discharge port 78, the cleaning liquid is not discharged from the liquid discharge port 78 in a situation where it is not preferable to discharge the cleaning liquid when the liquid supply tank 17 is attached or detached or carried.

  Since the mesh material 78B is disposed above the liquid discharge port 78, the foreign material originally mixed in the cleaning agent or the foreign material mixed when the cleaning agent is injected is captured by the mesh material 78B, and the cleaning agent is filtered. Therefore, the foreign matter in the tank main body 71 does not reach the injection nozzle 51, and the tip of the injection nozzle 51 can be prevented from being clogged.

  The liquid supply tank of the present invention includes a suction nozzle that sucks dirt and moisture together with air, a suction hose that conducts a mixed flow of dirt, moisture and air sucked from the suction nozzle, and dirt and moisture from the mixed flow. An air / water separator that separates air, an electric fan with an output of 1.5 kW or less that sucks and exhausts air separated by the air / water separator, and sewage that stores dirt and moisture separated from the mixed flow It is preferably used as a liquid supply tank in a wet type vacuum cleaner equipped with a tank.

The liquid supply tank for a wet vacuum cleaner of the present invention is not limited to the above-described embodiment, and can be appropriately changed as shown below without departing from the gist of the present invention.
About a tank main body, the shape, the mounting position to a housing, the mounting method to a housing, etc. can be changed suitably. The tank body may not constitute the external appearance of the wet vacuum cleaner, and may not be transparent.

The position of the liquid inlet, the position of the liquid outlet, the number of tank legs, the position of the tank legs, the structure of the housing, the position and shape of the tank handle, and the mesh material that captures and filters foreign substances in the cleaning liquid are also changed as appropriate. can do.
In addition, the wet type vacuum cleaner provided with the liquid supply tank of the present invention is particularly suitable for cleaning objects having fine irregularities such as carpets and car seats. It can also be used for cleaning each part.

FIG. 1: is the perspective view which looked at the wet vacuum cleaner provided with one Embodiment of the liquid supply tank of this invention from the front upper direction. FIG. 2 is a schematic view showing the whole of the wet type vacuum cleaner shown in FIG. 1 together with distribution channels such as dirt and moisture. FIG. 3 is a perspective view of the wet type vacuum cleaner shown in FIG. 4 is a view showing a state in which the liquid supply tank is removed from the wet type vacuum cleaner shown in FIG. 1, wherein (a) is a perspective view (corresponding to FIG. 3) seen from the front upper side, and (b) is a partial plan view. It is. FIGS. 5A and 5B are views showing an embodiment of the liquid supply tank of the present invention, in which FIG. 5A is a perspective view seen from the front upper side, and FIG. 5B is a perspective view seen from the upper rear side. 6A and 6B are diagrams showing an embodiment of the liquid supply tank of the present invention, where FIG. 6A is a front view, FIG. 6B is a rear view, and FIG. 6C is a right side view. 7A and 7B are diagrams showing an embodiment of the liquid supply tank of the present invention, where FIG. 7A is a plan view and FIG. 7B is a bottom view. FIG. 8 is a perspective view of a state where the liquid supply tank and the steam separator are removed from the wet type vacuum cleaner shown in FIG. 1 as viewed obliquely from above. FIG. 9 is a perspective view showing a steam separator in the wet type vacuum cleaner shown in FIG. FIG. 10 is a perspective view showing a sewage tank in the wet type vacuum cleaner shown in FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wet vacuum cleaner 11 Suction nozzle 12 Suction hose 12A One end part 12B of suction hose 13 Other end part 13 of suction hose Air-water separator 13A Upper part 13B Separation blade member 13C Discharge part 14 Sewage tank 14A Sewage inlet 14B Positioning overhang part 15 Electric fan 15A Suction part 15B Exhaust part 16 Filter 17 Supply tank 20 Housing 21 Supply tank storage part 21A, 21B, 21C Leg fitting part 22 Discharge port receiving part 23 Housing protruding part 24A Air / water separator storage part 24B Sewage tank storage section 24C Concavity 25 Housing handle 26 Switch 51 Injection nozzle 52 Liquid feed tube 53 Liquid feed pump 54 Connection tube 71 Tank body 72 Tank rear surface bulge 73 Tank rear surface recess 74 Tank cap 74A Liquid inlet 74B Air conduction Hole 75 Tank handle 76 Tank bottom 7A, 77B, air W cleaning liquid which is substantially separated sewage B from 77C tank leg portion 78 liquid discharge ports 78A-off valve 78B mesh A mixed flow B wastewater C air C 'mixed flow A

Claims (7)

A liquid supply tank for supplying the cleaning liquid to the injection nozzle in a wet type vacuum cleaner that injects the cleaning liquid from the injection nozzle to the object to be cleaned and sucks dirt of the object to be cleaned together with moisture and air,
A tank body for storing the cleaning liquid;
In the upper part of the tank body, a liquid inlet for injecting the cleaning liquid is provided therein,
The lower part of the tank body is provided with a tank outlet for discharging the cleaning liquid from the inside of the tank body and a tank leg projecting downward from the liquid outlet and raising the tank body independently.
The inner bottom portion of the tank body is inclined toward the liquid discharge port,
A liquid supply tank for a wet vacuum cleaner that is detachably attached to a housing of the wet vacuum cleaner.   The liquid tank for a wet electric vacuum cleaner according to claim 1, wherein the tank leg portion also serves as a positioning guide when the liquid tank is mounted on the housing.   The liquid tank for a wet vacuum cleaner according to claim 1 or 2, wherein the tank main body constitutes a part of an appearance of the wet vacuum cleaner when mounted on the housing.   The liquid supply tank for a wet electric vacuum cleaner according to any one of claims 1 to 3, wherein the tank body can visually recognize the cleaning liquid therein.   The liquid inlet is closed by a cap, and the cap is provided with an air conduction hole that communicates the inside and the outside of the tank body through the liquid inlet. Item 5. A liquid supply tank for a wet electric vacuum cleaner according to any one of Items 1 to 4.   The wet type vacuum cleaner includes a suction nozzle that sucks dirt and moisture together with air, a suction hose that conducts a mixed flow of dirt, moisture and air sucked from the suction nozzle, and dirt and moisture from the mixed flow. An air / water separator for separating air, an electric fan having an output of 1.5 kW or less for sucking and exhausting air separated by the air / water separator, and a sewage tank for storing dirt and moisture separated from the mixed flow A liquid supply tank for a wet electric vacuum cleaner according to any one of claims 1 to 5. The liquid tank for a wet electric vacuum cleaner according to any one of claims 1 to 6, wherein the volume of the tank body is 3L or less, and the volume of the tank body is smaller than the volume of the sewage tank.

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