JP2701132B2 - Wet vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet vacuum cleaner.

[0002]

2. Description of the Related Art In general, a dry vacuum cleaner that collects dust with a filter of paper, nonwoven fabric, cloth, or the like, removes the sucked dust into dust-collecting water previously placed in a water pan (water dish). 2. Description of the Related Art There is known a wet-type vacuum cleaner in which dust contained in air is brought into contact with the vacuum cleaner. This type of wet-type vacuum cleaner causes dust to be captured by the dust-collecting water by bringing the dust-containing intake air into contact with the dust-collecting water, and the contact causes moisture to be contained in the intake air. When this water-containing air passes through a slit inclined in the peripheral axis direction in the rotary separator coaxially connected to the rotation axis of the fan motor, the air is separated into gas and liquid, and the centrifugal force generated by the rotational motion of the separator causes the air to move in the outer peripheral direction. And is returned to the water pan.

However, the above-mentioned conventional rotary separator is coaxially connected near the intake port of the fan motor and allows the intake air to pass through a narrow slit which rotates at a high speed. ing. In addition, the dust that has not been collected by the dust-collecting water adheres to the rotating separator, and the accumulated dust accumulates moisture, which passes through the narrow slit to reach the fan motor, and as a result, the water separation efficiency. Lower. To cope with the increased load as described above,
Instead of the rotary separator, there is known a water pan having a cylindrical wall whose upper end is closely arranged at an edge of an intake port of the fan motor disposed on a central axis of the water pan (Japanese Patent Application Laid-Open No. HEI 9-103572). JP-A-1-305917 and JP-A-4-92636). However, in this case, the load is reduced, but the moisture contained in the intake air cannot be sufficiently separated, and the dust trapped by the dust catching water as described above is prevented from reaching the fan motor. Can not do it.

[0004] In addition, as described above, there is also provided a rotary separator provided with a blade for blowing off the dust that has been missed by the dust-collecting water and adheres to the rotary separator. Therefore, the above-mentioned load cannot be reduced (Japanese Patent Publication No. 5-34).
008).

[0005]

As described above, in the conventional wet vacuum cleaner of this type, the load seen from the fan motor for generating the intake air becomes heavy due to the rotary separator, and the use of the rotary separator is heavy. If not,
There is a problem that the water contained in the intake air cannot be sufficiently separated, and the dust that has not been collected by the dust-collecting water as described above cannot reach the fan motor. The present invention has been made in view of the above problems, and can reduce the load as viewed from a fan motor, and can effectively separate moisture and dust in intake air to substantially prevent moisture and dust in the intake air from reaching the fan motor. It is an object of the present invention to provide a wet-type vacuum cleaner capable of preventing the electric vacuum.

[0006]

SUMMARY OF THE INVENTION A wet vacuum cleaner according to the present invention for solving the above-mentioned problems and achieving the above-mentioned object is constituted by a substantially circular water pan and an upper lid of the pan. A container closed except for a first hole and a second hole, and a suction device having a suction port communicating with the first hole in an airtight state, wherein the first hole has a central axis of the container. Substantially concentrically, and provided at a site apart from the water put in the water pan, from the outside of the container instead of the air discharged from the container by the suction device from the second hole. Is sucked in, and the sucked air is guided by the guide along the circumferential direction of the water pan and in contact with the water, and the sucked air moves the water in the circumferential direction of the water pan. Move along In a wet vacuum cleaner in which dust contained in air sucked in from the second hole by being brought into contact with the water is trapped by water, the first hole is attached to the upper lid. A first cylinder concentric with the first hole and a second cylinder larger in diameter than the first cylinder are provided in close contact with the upper lid, and the first cylinder is provided at the bottom of the water pan. A third cylinder having a larger diameter than this and having a smaller diameter than the second cylinder is provided in close contact with the first cylinder, and the first to third cylinders overlap with each other at an appropriate interval. The first cylinder has a lower end separated from the bottom of the water pan, the second cylinder has a lower end separated from the surface of the water, and the third cylinder has an upper end separated from the upper lid. And the water is introduced only into the outer peripheral side of the third cylinder. It is characterized in that there was Unishi.

[0007] Further, a container which is constituted by a substantially circular water pan and an upper lid of the pan and is sealed except for a first hole and a second hole which will be described later, and a suction port is provided in the first hole in an airtight state. The first hole is provided substantially concentrically with the center axis of the container, and at a location away from the water contained in the water pan, and The air sucked from the outside of the container is sucked in place of the air discharged from the container by the suction device, and the sucked air is guided by the guide along the circumferential direction of the water pan, and The water was guided to come into contact, and the sucked air caused the water to move along the circumferential direction of the water pan, and the sucked air was sucked from the second hole by contacting the water. Contained in the air In a wet vacuum cleaner in which dust is caught in water, the first hole is formed at an upper end of a fourth cylinder provided in close contact with a bottom of the water pan, and the bottom has A fifth cylinder having a diameter larger than that of the fourth cylinder is provided in close contact with the fourth cylinder, and the upper lid has a diameter larger than that of the fourth cylinder concentrically with the fourth cylinder. A sixth cylinder having a smaller diameter than the fifth cylinder is provided in close contact with the fourth cylinder, and the fourth to sixth cylinders have a portion overlapping each other while maintaining an appropriate interval therebetween. The fifth cylinder is configured such that its upper end is separated from the upper lid, the sixth cylinder is configured such that its lower end is separated from the bottom of the water pan, and the water is introduced only into the outer peripheral side of the fifth cylinder. It may be.

[0008]

In the wet vacuum cleaner constructed as described above,
The first cylinder, the third cylinder, and the second cylinder, or the fourth cylinder, the sixth cylinder, and the fifth cylinder are disposed so as to be spaced from each other and to have alternate ends. Therefore, a bent air path is formed gradually along the wall surface of each cylinder to the first hole (suction port of the suction device), and the air that comes into contact with the water during use of the vacuum cleaner causes the air to flow. The guide is guided along the circumferential direction of the water pan by the guide, and passes through the bent air path while rotating along the circumference. Then, due to the centrifugal force generated by the rotation, when the vehicle passes through the sharply curved air path (for example, a movement from between the second cylinder and the third cylinder to between the third cylinder and the first cylinder). Time, and between the first cylinder and the third cylinder,
At the time of transition to the inside of the cylinder, or when moving from between the fifth cylinder and the sixth cylinder to between the sixth cylinder and the fourth cylinder, and when moving between the fourth cylinder and the sixth cylinder. Due to the inertial force during the transition from between the cylinders to the inside of the fourth cylinder), the moisture contained in the inhaled air, which is larger in mass than the air, and the dust that has not been collected are separated, and substantially the moisture and Dust-free air reaches the suction port of the suction device. The separated moisture and dust are deposited on the bottom surface of the water pan.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG. FIG. 1A is a partially cut-away schematic cross-sectional view of a main body of the wet-type vacuum cleaner, in which an upper case 2 in which a fan motor 1 is provided, a substantially cylindrical water pan (water dish) 3 and
The water pan 3 is constituted by an upper lid 4. The upper case 2, the upper lid 4 and the water pan 3 are assembled in a watertight manner by the clamp 5. The water pan 3 has a cylindrical wall 6 rising vertically at the center and a cylindrical wall 7 which is shorter than the diameter by a predetermined length and is disposed coaxially with the cylindrical wall 6, and has a predetermined diameter based on the diameter of the cylindrical wall 6. The upper end of the cylindrical wall 7 forms an air passage reaching the intake port 9 of the fan motor 1 at the center of the upper lid 4 and is integrated with the cylindrical wall 8 to form the upper wall 4. The lower end 10 is provided integrally with the bottom surface of the water pan 3 to provide an air passage.

The lower ends 10, 21 of the cylindrical wall 7 and the cylindrical wall 8 are alternated with respect to the position of the upper end 11 of the cylindrical wall 6, and an air path can be formed between the walls of the cylindrical walls. And has a sufficient length. Thus, the water storage section 12 of the water pan 3 is substantially annular. The water pan 3 is provided with a suction port 13 through which suction including dust is introduced from a well-known suction port body (not shown) of the vacuum cleaner.
Numeral 4 is arranged in a direction along one direction of the outer peripheral wall of the annular water storage portion 12 of the water pan 3.

FIG. 1B is a view of the water pan 3 as viewed from above, and shows the intake air and the dust-collecting water 1 generated by the intake air.
The reflux of No. 5 is indicated by an arrow. At the time of use, dust-collecting water 15 is poured into the annular water storage portion 12 of the water pan 3 according to a marker (not shown) provided on the wall surface of the cylindrical wall 6 or the transparent water pan wall surface to a specified water level. 4 and cover the upper case 2 with the fan motor 1 therein, and fix it with the clamp 5 to complete the preparation. When the fan motor 1 is stopped,
As shown by the solid line in FIG. 1 (a), the dust catching water 15 that maintains a flat water surface is forced to rotate (recirculate) by the intake of dust when the fan motor 1 is operating, and the centrifugal force causes the water level on the outer periphery to rise. The water level rises and becomes stable as shown by the broken line in the figure.

In the wet vacuum cleaner constructed as described above, the intake air containing the dust is discharged from the discharge port 14 through the suction port 13, and the dust comes in contact with the dust catching water 15 to catch the dust as is well known. However, at this time, the trapped dust in the intake air and water droplets such as splashes contained in the intake air pass through the upper end 11 of the cylindrical wall 6 from a narrow path between the cylindrical wall 8 and the cylindrical wall 6. Again, the fan motor 1 passes through the narrow path between the cylindrical wall 6 and the cylindrical wall 7 and passes through the lower end 10 of the cylindrical wall 7.
Of the water pan 3, the air flow passes through a curved airway reaching the intake port 9 as a spiral airflow, is collided and captured by a wall near the bent portion, and is consequently left at the center bottom of the water pan 3.

In the above embodiment, the cylindrical walls 7 and 8 are formed integrally with the upper lid 4, but the cylindrical walls 7 and 8 are formed integrally.
May be integrally formed, and this may be detachably attached to the upper lid 4 by a known means. In this case, the cylindrical walls 7, 8 can be detached from the upper lid 4 when cleaning the water pan 3, and cleaning of the relatively small cylindrical walls 7, 8 and cleaning of the upper lid 4 are facilitated. The arrows in FIG. 1A indicate the direction of the intake air flow in the vicinity of each of the cylindrical walls 6, 7, 8.

FIG. 2 shows another embodiment, which is significantly different from that of FIG. 1 in that a fan motor is provided below the water pan. In FIG. 2, the same reference numerals as those in FIG. Reference numeral 16 denotes a cylindrical wall suspended from the upper lid 4 and is concentric with a cylindrical wall 17 raised from an edge of a center hole provided at the bottom of the water pan 3 so as to coincide with the intake port 9 of the fan motor 1. Provided in a shape,
An appropriate distance from the cylindrical wall 17 is maintained. Reference numeral 18 denotes a cylindrical wall rising from the bottom of the water pan 3 and is arranged concentrically with the cylindrical wall 16 and at an appropriate interval. The upper ends of the cylindrical walls 17 and 18 are separated from the upper lid 4, and the lower end of the cylindrical wall 16 is separated from the bottom of the water pan 3. 19
Is a known clamp for attaching the upper lid 4 to the water pan 3 in a watertight manner. Reference numeral 20 denotes a leg of the wet vacuum cleaner. The wet vacuum cleaner configured as described above has substantially the same operation and effect as those described with reference to FIG.

In the above embodiment, the cylindrical walls 17 and 18 are formed integrally with the water pan 3, but the cylindrical walls 17 and 18 are formed integrally and It may be detachably attached by means of (1). In this case, the cylindrical walls 7, 8 can be removed from the upper lid 4 when cleaning the water pan 3, and cleaning of only the relatively small cylindrical walls 7, 8 or cleaning of the water pan 3 becomes easy. Further, in the embodiment of FIG. 1, the cylindrical walls 6, 7, 8 are provided, and in the embodiment of FIG. 2, the cylindrical walls 16, 17, 18 are provided. However, more cylindrical walls may be provided respectively. In this case, the water separation efficiency is further improved, and the dust that has not been collected by the dust-collecting water can be more efficiently prevented from reaching the fan motor 1.

The main features or embodiments of the present invention are as follows. (1) A container which is constituted by a substantially circular water pan 3 and an upper lid 4 of the pan, and which is sealed except for a first hole and a second hole which will be described later, and an inlet 9 and the like in the first hole. A suction device such as a fan motor 1 having a suction port communicating in an airtight state, wherein the first hole is substantially concentric with the center axis of the container;
And it is provided at a site away from the dust catching water 15 placed in the water pan 3, and the second hole such as the suction port 13 replaces the air discharged into the container by the suction device. Air from outside the container is sucked in, and the sucked air comes into contact with the water 15 along the circumferential direction of the water pan by a guide such as a pipe between the suction port 13 and the discharge port 14. The water 15 is moved along the circumferential direction of the water pan 3 by the sucked air, and the sucked air comes into contact with the water 15 to be sucked from the second hole. In a wet vacuum cleaner in which dust contained in trapped air is captured by water 15, the first hole is provided in the upper cover 4, and the upper cover 4 is concentric with the first hole. First such as cylindrical wall 7 And the cylindrical, than this of the large-diameter cylindrical wall 8
The water pan 3 has a cylindrical wall 6 having a diameter larger than that of the first cylinder and smaller than that of the second cylinder. Third of etc
Are provided in close contact with each other, the first to third cylinders have a portion overlapping each other with an appropriate distance therebetween, and the first cylinder has a lower end such as a lower end 10 of the water pan 3. The second cylinder is configured such that the lower end thereof such as the lower end 21 is away from the surface of the water 15, and the third cylinder is configured such that the upper end thereof such as the upper end 11 is separated from the upper lid 4. A water storage portion 12 is formed by the third cylinder, the outer peripheral wall of the water pan 3, and the bottom of the water pan 3 so that the water reservoir 15 is inserted only into the outer peripheral side of the third cylinder. Vacuum cleaner.

(2) A container which is constituted by a substantially circular water pan 3 and a top cover 4 of the pan, and which is sealed except for a first hole and a second hole which will be described later, and an intake port provided in the first hole. 9 is provided with a suction device such as a fan motor 1 in which suction ports communicate with each other in an airtight manner, and the first hole is substantially concentric with the center axis of the container and is provided in a water pan 3. It is provided at a site away from the dust water 15, and air from the outside of the container is sucked from the second hole such as the suction port 13 instead of the air discharged from the container by the suction device, The sucked air is supplied to the suction port 13 and the discharge port 1.
4 and a water pan 3
The water 15 is guided along the circumferential direction of the water pan 3 and is brought into contact with the water 15, and the water 15 is moved along the circumferential direction of the water pan 3 by the sucked air. In a wet vacuum cleaner, dust contained in air sucked from the second hole by being brought into contact with the water 15 is captured by the water 15.
The first hole is formed at the upper end of a fourth cylinder such as a cylindrical wall 17 provided in close contact with the bottom of the water pan 3, and is connected to the first hole through the fourth cylinder. As described above, the suction port is communicated in an airtight state, and a fifth cylinder such as a cylindrical wall 18 having a larger diameter than the fourth cylinder is provided in close contact with the bottom and concentrically with the fourth cylinder. A sixth cylinder such as a cylindrical wall 16 having a larger diameter than the fourth cylinder and a smaller diameter than the fifth cylinder is provided in close contact with the upper lid 4 concentrically with the fourth cylinder, The fourth to sixth cylinders have a portion overlapping each other while maintaining an appropriate distance from each other, and the fourth cylinder and the fifth cylinder have upper ends formed by the upper lid 4.
Away from the sixth cylinder, the lower end of the sixth cylinder is configured to be separated from the bottom of the water pan 3, and the fifth cylinder and the fifth cylinder are arranged so that the water 15 is introduced only into the outer peripheral side of the fifth cylinder. Outer peripheral wall of water pan 3 and water pan 3
A water reservoir 12 formed by the bottom of the vacuum cleaner.

(3) The above-mentioned (1), wherein the first cylinder and the second cylinder are integrally formed and detachably provided on the upper lid 4 by a known means. Wet vacuum cleaner. (4) The above-mentioned (2), wherein the fourth cylinder and the fifth cylinder are integrally formed and are detachably provided on a bottom portion of the water pan 3 by a known means. Wet vacuum cleaner. As such, the first cylinder and the second cylinder, or the fourth cylinder
By detachably providing the cylinder and the fifth cylinder, the cleaning of the first cylinder and the second cylinder, the cleaning of the fourth cylinder and the fifth cylinder, or the cleaning of the upper lid or the water pan becomes easy.

[0019]

As described above, in the wet-type vacuum cleaner of the present invention, the load seen from the fan motor does not become heavy like the conventionally used rotary separator, and the same moisture content as that obtained by using the rotary separator is obtained. It was experimentally confirmed by the present inventors that there is a separation function. And
It is possible to more efficiently prevent the dust that has been missed by the dust catching water from reaching the fan motor 1. When the load of the intake air of the fan motor 1 is reduced, a sufficient amount of suction air is obtained, so that the suction efficiency is improved. Also, 3
Since the intake air flow rate is moderated in the curved air path formed by the three cylinders, that is, the first to third cylinders or the fourth to sixth cylinders, noise is also reduced.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, in which (a)
Is a partially cut-away schematic longitudinal front view of the body of the wet vacuum cleaner,
(B) is a plan view of the water pan.

FIG. 2, which shows another embodiment of the present invention, is a partially cut-away schematic longitudinal front view of a main body of a wet vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fan motor 2 Upper case 3 Water pan 4 Top lid 5 Clamp 6,7,8,16,17,18 Cylindrical wall 9 Intake port 10,21 Lower end 11 Upper end 12 Reservoir 13 Suction port 14 Discharge port 15 Dust collecting water 19 Clamp 20 legs

Claims (2)

(57) [Claims] 1. A container comprising a substantially circular water pan and an upper lid of the pan, which is sealed except for a first hole and a second hole which will be described later, and a suction port in the first hole in an airtight state. Wherein the first hole is provided substantially concentrically with the central axis of the container and at a location away from the water contained in the water pan, and The air sucked from the outside of the container is sucked in place of the air discharged from the container by the suction device, and the sucked air is guided by the guide along the circumferential direction of the water pan, and The water was guided to come into contact, and the sucked air caused the water to move along the circumferential direction of the water pan, and the sucked air was sucked from the second hole by contacting the water. Dust in air In the wet vacuum cleaner as captured in the water, it provided the first hole in the upper cover, the the upper lid first
A first cylinder concentric with the hole and a second cylinder having a larger diameter than the first cylinder are provided in close contact with each other, and a larger diameter is formed concentrically with the first cylinder at the bottom of the water pan. And a third cylinder having a smaller diameter than the second cylinder is provided in close contact with the first to third cylinders. The cylinder has a lower end separated from the bottom of the water pan, a second cylinder has a lower end separated from the water surface of the water, and a third cylinder has an upper end separated from the upper lid, and has a structure in which the water is removed. A wet-type vacuum cleaner characterized in that it is inserted only into the outer peripheral side of the third cylinder. 2. A container which is constituted by a substantially circular water pan and an upper lid of the pan, and is sealed except for a first hole and a second hole which will be described later, and a suction port is provided in the first hole in an airtight state. Wherein the first hole is provided substantially concentrically with the central axis of the container and at a location away from the water contained in the water pan, and The air sucked from the outside of the container is sucked in place of the air discharged from the container by the suction device, and the sucked air is guided by the guide along the circumferential direction of the water pan, and The water was guided to come into contact, and the sucked air caused the water to move along the circumferential direction of the water pan, and the sucked air was sucked from the second hole by contacting the water. Dust in air In a wet-type vacuum cleaner adapted to be caught by water, the first hole is formed at an upper end of a fourth cylinder provided in close contact with the bottom of the water pan, and the fourth hole is formed in the bottom. A fifth cylinder having a diameter larger than that of the fourth cylinder is provided in close contact with the cylinder of the fourth cylinder, and the upper lid has a diameter larger than that of the fourth cylinder and concentrically with the fourth cylinder. A sixth cylinder having a diameter smaller than that of the fifth cylinder is provided in close contact with the fourth cylinder, and the fourth to sixth cylinders have a portion overlapping each other while maintaining an appropriate interval therebetween. The upper end of the cylinder is separated from the upper lid, the lower end of the sixth cylinder is separated from the bottom of the water pan, and the water is supplied only to the outer peripheral side of the fifth cylinder. Wet vacuum cleaner characterized by the above-mentioned.