JPH0534008B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning device that can effectively capture and remove dirt and dust by using water as a filter, for example.

[Background of the invention]

The applicant of the present application has previously proposed a cleaning device as shown in FIG.

In the figure, 1 is a water tank, 2 is an opening of the water tank 1 to which a pipe (not shown) with a nozzle at the tip is attached, and 3 is a guide that is guided from the opening 2 to the bottom side of the water tank 1. A guide wall for forming a passage 4, 5 is an output shaft of a motor disposed at the top of the water tank 1, and 6 is arranged to partition the upper opening of the water tank 1 and is attached to the lower part of the output shaft 5. 7 is a spider, 8 is an air deflector, 9 is a motor housing, 10 is a motor cover, and 11 is a motor flange.

In the cleaning device with this configuration, when the power switch is turned on and the motor is activated, the fan rotates and air is sucked from the tip nozzle.
The motor housing 9 passes through the passages shown in b, c, and d, and is discharged to the outside through the passage formed by the motor cover 10. At this time, the dirt and dust sucked together with the air from the tip nozzle are collected in the water tank. Since the water passes through the water W in the water tank 1, dirt and dust are captured and removed by the water W in the water tank 1, making it possible to effectively remove dirt and dust.

The water W in the water tank 1 is also sucked together with the sucked air etc. by the operation of the suction means constituted by a fan, etc., and by the rotation of the separator 6 attached to the output shaft 5 of the motor. Draining is performed, and water W is not sucked into the paths shown by arrows c and d.
It is designed to prevent entry.

However, even with such a cleaning device, water sometimes gushes out to the outside, which poses a problem.

[Disclosure of the invention]

While proceeding with the investigation into the problem of water spouting to the outside from the exhaust port in the cleaning device shown in FIG. I was able to find out.

That is, a submersible cleaning device that removes dust and drains water by rotating a separator 6 as shown in FIG. A method is adopted in which only clean air is allowed to pass through the slits of the separator, and dust is scattered by the centrifugal force generated by the high speed rotation of the separator 6 and returned to the water tank 1.

The seal between the outer edge of the rotating separator 6 and the housing of the device is achieved by a labyrinth system formed by the spider 7, the motor flange 11, the separator 6, and the like.

Incidentally, dust (especially fibrous dust) that is not scattered by the centrifugal force travels along the outer wall of the separator 6 to the outer edge, and the centrifugal force causes the dust to flow through the inner wall 11 of the motor flange.
It corresponds to a. And the motor flange inner wall 11
Some of the dust adhering to a may overcome the sealing force of the labyrinth, and in such cases, it passes through the gap between the spider 7 and the motor flange 11 and reaches the air deflector 8, and the air deflector formed by the spider 7 and the air deflector 8 It accumulates in the cavity where it is placed, and it becomes clogged up to the space between the spider 7 and the motor flange 9.

They discovered that when this stage is reached, water is sucked up through the clogged garbage, resulting in water gushing.

Therefore, the inventor of the present invention came up with the idea that basically it would be better to prevent water-containing dirt and dust from clogging the space between the two, and as a result of further research, he found that I came to the realization that the problem of water gushing could be solved by increasing the force of scattering dirt and dust toward the bottom of the water tank.

The present invention was achieved based on the above-mentioned revelation, and an object of the present invention is to provide a cleaning device that does not spout water to the outside even during long-term continuous operation.

The object of the present invention is to provide a suction means, a liquid tank connected to the suction means, a suction port connected to an opening of the liquid tank, and a suction port connected to the suction means by the operation of the suction means. A cleaning device comprising a rotary separator with a slit provided between a suction means and the liquid in the liquid tank in order to shake off the liquid in the liquid tank that is pulled and sucked when the liquid is sucked. This is achieved by a cleaning device characterized in that a convex blade is provided on the lower surface of the outer peripheral edge of the rotating separator.

〔Example〕

1 to 3 show one embodiment of the cleaning device according to the present invention, and FIG. 1 is a cross-sectional view of the main part, and FIG.
The figure is a perspective view of a liquid tank, and FIG. 3 is a perspective view of a separator.

In each figure, 21 is a water tank, 22 is an opening of the water tank 21 to which a pipe with a nozzle that serves as a suction port for dirt and dust is attached at the tip, and 23 is a connection from the opening 22 to the bottom side of the water tank 21. A guide wall for forming a guided guide path 24, 25 an output (rotation) shaft of a motor disposed above the water tank 21, and 26 an output shaft arranged so as to partition the upper opening of the water tank 21. A separator with a slit is attached to the lower part of the shaft 25, 27 is a spider, 28 is an air deflector, and 29 is a housing. Most of these structures are similar to those of the conventional cleaning device shown in FIG. Since they are the same, detailed explanation thereof will be omitted.

30, as shown in FIG. 3, are protrusions (wings) provided at appropriate positions on the lower surface of the outer peripheral edge 26a of the separator 26, for example, at four locations at 90 degree intervals.

In addition, in the cleaning device of this embodiment, a hanging part 27a is provided on the outer peripheral part of the spider 27, and the lower end part of this hanging part 27a is configured to be below the upper surface part 21a of the water tank 21, and the separator The outer peripheral edge 26a of the water tank 26 is configured to be below the upper surface 21a of the water tank 21.

Therefore, this cleaning device includes a separator 26,
There is no standing wall connected to the gap 31 outside the separator 26 in the vicinity of the gap 31 formed between the motor flange 33 and the spider 27 .

Further, when air, dirt, and dust are sucked from the nozzle by the operation of the suction means, the inner wall of the bottom surface of the water tank 21 is formed so that the dirt and dust pass through the guide path 24 and reach the separator 26.
In order to stay immersed in the water W in the water tank 21 for as long as possible, the water tank 21 is configured to have a shape that promotes the water W in the water tank 21 to flow in a substantially spiral shape by the operation of the suction means and the separator 26. ing. That is, a cochlear-shaped guide 24 is provided at the bottom portion 21b of the water tank 21 following the outlet 24a of the guide path 24.
c is constructed.

Further, even when the cleaning device configured as described above was used for a long time, for example, 24 hours continuously, no defects such as water spouting occurred.

That is, in the cleaning device of this embodiment, when the power switch is turned on and the motor is operated, the fan rotates and air is sucked from the tip nozzle and passes through the motor housing as shown by arrows a, b, c, and d. 29 and the motor cover 32, and at this time, the dirt and dust sucked together with the air from the tip nozzle pass through the water W in the water tank 21, so the dirt and dust are The dirt and dust are captured and removed by the water W in the water tank 21, making it possible to effectively remove dirt and dust.

The water W in the water tank 21 is sucked together with air etc. by the operation of the suction means composed of a fan, and the water is drained by the rotation of the separator 26 attached to the output shaft 25 of the motor. The water W is not attracted to the paths shown by arrows c and d,
It doesn't go in.

In other words, a separator (separator slit) that rotates at high speed to suck out dust containing air and water.
26, only clean air separator 2
Pass through the slit of 6, and remove the dust through the separator 26.
is scattered by the centrifugal force generated by the high-speed rotation of the In particular, in the case of this example, the effect of scattering dust was great. This means that even if dirt rises up to the lower surface of the outer peripheral edge 26a of the separator 26, the air flow formed by the rotation of the protrusion (blade) 30 will keep the water tank 21 clean. This is believed to be because the dirt is effectively scattered on the bottom side and returned to the water tank 21. Moreover, even if the dust reaches the protrusion (blade) 30 itself, it is scattered to the bottom side of the water tank 21 by the rotating protrusion (blade) 30, and the water tank 21
This is thought to be due to the fact that it is returned to the inside.

The seal between the outer edge of the rotating separator 26 and the motor flange 33 of the device is achieved by a labyrinth system formed by the spider 27, the motor flange 33, the separator 26, etc., as in the case of the cleaning device shown in FIG. However, dust that is not scattered by centrifugal force (particularly fibrous dust) travels along the outer wall of the separator 26 to the outer edge, and although it is scattered by centrifugal force, water-containing dust flows through the protrusion 30. Since the water was scattered to the bottom side by the dirt, there was no possibility that the water would be sucked up through the dirt, and the water gushing defect did not occur.

Incidentally, when the cleaning device of this embodiment and the cleaning device shown in Fig. 4 were operated continuously after sucking water in which 20 g of cotton waste was dispersed, the cleaning device of this embodiment was operated continuously for 24 hours. Although no defects such as water gushing out from the exhaust port occurred after 5 hours, in the cleaning device of the type shown in FIG. 4, water spewed out from the exhaust port after 5 hours, resulting in wetting the carpet.

〔effect〕

The cleaning device according to the present invention includes a suction means, a liquid tank connected to the suction means, a suction port connected to an opening of the liquid tank, and a suction port connected to the suction means by the operation of the suction means. The cleaning device is equipped with a rotary separator with a slit provided between a suction means and the liquid in the liquid tank in order to shake off the liquid in the liquid tank that is pulled and sucked when suctioned from the liquid tank. Since convex blades are provided on the lower surface of the outer peripheral edge of the rotary separator, dirt and dust can be effectively captured and removed, and water can be spouted to the outside even during long-term continuous operation. It has the characteristics that it never happens.

[Brief explanation of drawings]

1 to 3 show one embodiment of the cleaning device according to the present invention, and FIG. 1 is a cross-sectional view of the main part, and FIG.
3 is a perspective view of a liquid tank, FIG. 3 is a perspective view of a separator, and FIG. 4 is a sectional view of a previously proposed cleaning device. 21...Water tank, 21a...Top part, 21b
... Bottom part, 22 ... Opening, 23 ... Guide wall, 24 ... Guide path, 24a ... Exit, 24c ...
... Guide, 25 ... Output shaft, 26 ... Separator, 26a ... Outer periphery, 27 ... Spider, 2
7a... hanging part, 28... air deflector, 29
...Housing, 30...Protrusion, 31...〓Between,
32...Motor cover, 33...Motor flange, W...Water.

Claims (1)

[Claims] 1. A suction means, a liquid tank connected to the suction means, a suction port connected to the opening of the liquid tank, and a suction port connected to the suction port when the suction means is operated to draw suction from the suction port. A cleaning device comprising a rotating separator with a slit provided between a suction means and the liquid in the liquid tank to shake off the liquid in the liquid tank that is drawn and sucked, A cleaning device characterized by having convex blades on the lower surface of the periphery.