JPH0366342A - Cleaning device - Google Patents

Abstract

PURPOSE:To prevent water from being spouted to the outside even if the device is operated continuously for many hours by constituting an entry preventive mechanism for preventing a liquid spattered by a rotation of a rotary separator from entering into a suction means side from a clearance of the separator and a housing part. CONSTITUTION:When a power source switch is turned on and a motor is operated, a fan rotates, and air is sucked from a tip nozzle, passes through as indicated with arrows (a), (b), (c) and (d), passes through a passage constituted of a motor housing 29 and a motor cover 32 and exhausted to the outside. In this case, refuse and dust sucked together with air from the tip nozzle pass through the inside of water W in a water tank 21, therefore, the refuse and the dust are caught and eliminated by the water W in the water tank 21. By an operation of a suction means, the water W in the water tank 21 is sucked together with air, etc., but draining is executed by a rotation of a separator 26 attached to an output shaft 25 of the motor, only clean air is allowed to pass through a slit of the separator 26, and the refuse is scattered by centrifugal force generated by a high speed rotation of the separator 26, and returned into the water tank 21.

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 invention 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) having a nozzle at the tip is attached;
3 is a guide wall for forming a guide path 4 guided from the opening 2 to the bottom side of the water tank 1; 5 is an output shaft of a motor disposed at the top of the water tank 1; 6 is a guide wall of the water tank 1; A separator with a slit is arranged to partition the upper opening and 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.

Then, 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, as shown by arrow a.

It passes through as shown in b, c, and d and is discharged outside through the passage consisting of the motor housing 9 and motor cover 10. At this time, the dirt and dust sucked together with the air from the tip nozzle are discharged to the water tank. Since it passes through the water W in l,
Dirt and dust are captured and removed by the water W in the water tank 1, making it possible to effectively remove dust and dirt.

By the way, 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 the separator 6 attached to the output shaft 5 of the motor
Water is drained by the rotation of , and the water W is configured so that it is not sucked into the paths of arrows c and d and does not enter them.

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 came to find out.

That is, the water-increasing type cleaning device that removes dust and drains water by rotating a separator 6 as shown in FIG. Only clean air is allowed to pass through the slits of the separator, and dirt is scattered by the centrifugal force generated by the high speed rotation of the separator 6 and returned to the water tank 1.

The sealing between the outer edge of the rotating separator 6 and the housing of the device is achieved by the spider 7 and the motor flange 1.
1, a separator 6, etc., is adopted.

Incidentally, the 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 hits the motor flange inner wall 11a by the centrifugal force.
Some of the dust attached to the motor flange inner wall 11a overcomes 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, causing the spider 7 and the air deflector 8 to The particles accumulate in the cavity formed by the above, and the gap between the spider 7 and the motor flange 11 becomes clogged.

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 gaps, and as a result of further research, he found that A major reason why dirt and dust get stuck in the air deflector gap is that dirt and dust containing water blown away by the separator 6 etc. adheres to the inner wall 11a of the motor flange 11, which is connected to this gap. We have come to the conclusion that this is because the particles accumulate.

Therefore, we did not construct an erected wall near this gap,
I came to the revelation that the problem of water gushing could be solved by preventing water-containing litter and dust from adhering to and accumulating.

The present invention has been achieved based on the above revelation,
It is an object of the present invention to provide a cleaning device that does not spout water to the outside even during continuous operation for a long time.

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 the opening of the liquid tank, and suction from the suction port by the operation of the suction means. A cleaning device comprising a rotating 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 This is achieved by a cleaning device comprising an entry prevention mechanism that prevents liquid scattered by the rotation of the rotating separator from entering the suction means side through the gap between the separator and the housing part.

In this cleaning device, the liquid intrusion prevention mechanism is configured so that the wall to which the liquid scattered by the separator adheres is not provided near the gap between the separator and the housing part. This prevents liquid from entering the gap.

〔Example〕

1 and 2 show one embodiment of the cleaning device according to the present invention, with FIG. 1 being a sectional view of the main parts, and FIG. 2 being a perspective view of the liquid tank.

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 2 are housings. Most of these structures are similar to the structure of the conventional cleaning device shown in FIG. Since this is a matter of consultation, detailed explanation will be omitted.

Reference numeral 30 denotes 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.

Further, in the cleaning device of this embodiment, a hanging portion 27a is provided on the outer periphery of the spider 27, and the lower end portion of the hanging portion 27a is positioned below or approximately at the same height as the upper surface portion 21a of the water tank 21. The outer peripheral edge 26a of the separator 26
is configured to be below or approximately at the same height as the upper surface portion 21a of the water tank 21.

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

Further, the inner wall of the bottom surface of the water tank 21 is designed to prevent the water in the water tank 21 from being absorbed by the air, dirt, and dust from the nozzle when the suction means operates, until the dirt and dust travel through the guide path 24 and reach the separator 26. In order to stay immersed in W 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. That is, a pot-shaped guide 24C is formed on the bottom surface 21b of the water tank 21, continuing from the outlet 24a of the guide path 24.

Then, the cleaning device with fI set as above is used for a long time.
For example, even after continuous use for 24 hours, no defects such as water gushing 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 as shown by arrow a.

It passes through as shown in b, c, and d, and is discharged outside through the passage consisting of the motor housing 29 and motor cover 32. At this time, the dirt and dust sucked together with the air from the tip nozzle are discharged to the water tank. Since it passes through the water W in the water tank 21, dirt and dust are captured and removed by the water W in the water tank 21, and dirt and dust can be effectively removed.

Then, the water W in the water tank 21 is sucked together with air etc. by the operation of the suction means constituted by a fan, and the separator 26 attached to the output shaft 25 of the motor
The water is drained by the rotation of , and the water W is drawn by the arrows c and d.
It is not attracted to and does not enter the path.

That is, the air to be sucked and dust containing water are separated by a separator (separator slits) 26 rotating at high speed, only clean air is allowed to pass through the slits of the separator 26, and dust is separated by centrifugal force generated by the high speed rotation of the separator 26. The water is scattered and returned into the water tank 21.

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, the dust that is not scattered by centrifugal force (particularly fibrous dust) travels along the outer wall of the separator 26 and reaches the outer edge, and although it is scattered by centrifugal force, the scattered water-containing dust adheres to it. Since the standing wall was not located near the gap 31, water was not sucked up through the dirt, and the water spouting defect did not occur.

Incidentally, as a result of continuous operation of the cleaning device of this embodiment and the cleaning device shown in FIG. 3 after sucking water in which 20 g of cotton waste was dispersed, the cleaning device of this embodiment was operated continuously for 24 hours. However, in the cleaning device of the type shown in Fig. 3, 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. A cleaning device comprising a rotating 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 sucking, An intrusion prevention mechanism is configured to prevent the liquid scattered by the rotation of the rotating separator from entering the suction means through the gap between the separator and the flange, so dirt and dust can be effectively captured and removed. It also has features such as not spewing out water to the outside even during long-term continuous operation.

[Brief explanation of drawings]

Figures 1 and 2 show one embodiment of the cleaning device according to the present invention. Figure 1 is a cross-sectional view of the main parts, Figure 2 is a perspective view of the liquid tank, and Figure 3 is a cleaning device according to an earlier proposal. It is a sectional view of a cleaning device. 21...Water tank, 21a...Top part, 21b...
・Bottom part, 22... Opening part, 23... Guide wall, 2
4... Guide path, 24a... Exit, 24c... Guide, 25... Output shaft, 26... Separator, 26a
...Outer peripheral edge portion, 27...Spider, 27a...Descent portion, 28...Air deflector, 29...Housing, 30...Protrusion, 31...Gap, 32... Motor cover, 33...Motor flange, W...Water.

Claims (2)

[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 suction is drawn from the suction port by the operation of the suction means. 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, the rotating separator rotating A cleaning device comprising an intrusion prevention mechanism that prevents the liquid scattered by the liquid from entering the suction means through the gap between the separator and the flange. (2) In the cleaning device according to claim 1,
The intrusion prevention mechanism is configured so that a wall to which liquid splashed by the separator adheres is not provided near the gap between the separator and the flange, and prevents liquid from entering the gap through the wall. That's what happens.