JPH0492636A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To prevent the waterdrops from being splashed, and also. to omit the draining rotary suction board by placing an opening of a water container side of a suction pipe for leading in outside air between an inner pipe and an outer pipe of a double cylindrical wall, and turning the suction direction in its opening roughly in parallel to the water surface. CONSTITUTION:Air sucked from a suction hose passes through the upper part 7 and the lower part 6 of a suction pipe and is led into the inside, the suction direction is set to the horizontal direction by a horizontal part 6b of the lower part 6 of the suction pipe, and the air goes out of an opening of the other end side. Also, when said air flow passes through between an inner pipe 10 and an outer pipe 11, it comes to draw a circle, therefore, water contained in a water container 5 forms a water flow for rotating as indicated with a void arrow in accordance with a motion of the air flow. Accordingly, even if a large vibration is generated due to a movement of the cleaner, etc., disorder scarcely occurs in water, and also, since a tubular wall consists of a double tubular structure a suction motor 1 scarcely sucks up waterdrops. Moreover, in such a way, a draining rotary suction board which is required conventionally becomes unnecessary, deterioration of the balance and generation of a sound and vibration can be prevented, and also, the suction efficiency is improved.

Description

[Detailed Description of the Invention] Presented by Soho Kotou The present invention introduces external air sucked in by a suction hose to a water container built into the vacuum cleaner case, where the water contained in the external air is collected. This invention relates to a water and dust removal type vacuum cleaner that removes dust.

As the above-mentioned vacuum cleaner, the vacuum cleaner shown in FIGS. 8 and 9 has been known (Utility Model Application No. 61-61948).

This vacuum cleaner has a vacuum suction type vacuum cleaner body 22 placed and fixed on top of a water container 21 containing water, and a suction hose 23.
The lower end of the suction pipe 24 to which the
A suction window 26 is arranged in parallel to the rotary suction plate 25, and suction air is introduced into the water and sucked through the suction window 26 to remove dust with water stirred by the suction air. A concealing tube 28 for concealing the outer periphery of the rotary suction disk 25 is vertically disposed in the center of the container 21 in such a manner that it is removed from the water container 21 when the vacuum cleaner main body 22 is removed from the water container 21.
There is a configuration in which the lower edge of the concealment tube 28 is exposed to an appropriate amount near the water surface in the water container 21, and a configuration in which the concealment tube 28 is not exposed.

Therefore, in the case of a conventional vacuum cleaner, the suction pipe 24
Since the lower end of the container 21 is opened into the water of the water container 21, the suction air flow hits the water surface. For this reason, since the water droplets are splashed up, a rotary suction plate 25 for draining water is required, and because of the rotary suction plate 25, the suction air volume by the vacuum suction type cleaner body 22 is considerably reduced. Further, the presence of the rotary suction disk 25 causes noise and unnecessary vibrations, and the adhesion of dust to the rotary suction disk 25 deteriorates the balance.

The present invention has been made in view of the above circumstances, and can prevent water droplets from splashing up, eliminate the need for a rotary suction plate for draining, and further improve the suction air volume, reduce balance, and reduce noise and vibration. An object of the present invention is to provide a vacuum cleaner that can prevent the occurrence of.

The present invention of the i-Ruta connects the suction hose to the suction hose through the suction pipe which has openings at both ends inside the suction hose attachment hole of the vacuum cleaner case and inside the lidded water container for water storage built into the vacuum cleaner case. This is a vacuum cleaner that uses a suction motor to suck the external air sucked into the water container through a through hole formed in the lid of the water container. In this state, a double tubular wall consisting of an inner tube and an outer tube is provided so that the axial direction is substantially vertical, and the upper end of the inner tube surrounds the through hole, and furthermore, the water of the suction tube is The opening on the container side is located between the inner tube and the outer tube and is arranged above the water surface, and the suction direction of the opening is oriented approximately parallel to the water surface. A vacuum cleaner.

In addition, the present invention provides suction with a suction hose through a suction pipe that has openings at both ends in the suction hose attachment hole of the vacuum cleaner case and inside a water container with a lid for storing water built into the vacuum cleaner case. A vacuum cleaner that introduces external air into the water container and then uses a suction motor to suck it through a through hole formed in the lid of the water container, the vacuum cleaner being suspended above the water surface on the underside of the lid of the water container, A single tubular wall is provided so that the axial direction is substantially vertical, and the upper end surrounds the through hole, and the opening on the water container side of the suction pipe is located between the tubular wall and the circumferential surface of the water container. The water container is provided above the water surface, and the suction direction of the opening is oriented substantially parallel to the water surface, and furthermore, a protruding rib for adjusting water flow is formed on the bottom surface of the water container. It is characterized by

In the present invention, the opening on the water container side of the suction pipe that sucks outside air and introduces it into the vacuum cleaner is located between the inner pipe and the outer pipe of the double cylindrical wall, or between the inner pipe and the outer pipe of the double cylindrical wall. It is sandwiched between the tubular wall of the tube and the water container, and the suction direction at its opening is oriented almost parallel to the water surface, so the air flow sucked in by this suction tube is
The water is guided to the suction motor while rotating between the inner and outer tubes with double cylindrical walls or between the single cylindrical wall and the water container. Therefore, the air that has passed through the suction tube exits from the suction tube in a state substantially parallel to the water surface. Therefore, the water surface is hardly undulated by the airflow coming out of the suction tube, and the generation of water droplets is prevented.

Also, the rotating airflow causes the water in the water container to rotate in a whirlpool, and the centrifugal force causes the water to rise up the inner wall of the water container.

Therefore, even if large vibrations (shaking) are applied due to movement of the vacuum cleaner, etc., the water in the water container is unlikely to be disturbed.

Further, even if turbulence occurs in the water, the turbulent portion of the water in the outer tube of the tubular wall having a double tube structure collides with the outer peripheral surface of the outer tube, making it difficult for it to enter the suction motor. In addition, if a protruding rib is formed even in a single-pipe structure, the protruding rib will push water to the outside of the water container, causing less water under the suction motor and water entering the suction motor. It becomes difficult.

Real-1m-Double The present invention will be specifically explained below with reference to FIGS. 1 to 7. FIG. 1 is a longitudinal sectional view showing an embodiment of a vacuum cleaner according to the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG. 1. 3 in the figure is a lower case, and the upper case 2 is removably placed and fixed on the upper side of the lower case 3. The upper case 2 covers the main body of the vacuum cleaner, and includes a suction motor 1 and a suction pipe upper part 7 to which a suction hose (not shown) is attached. This suction tube upper part 7 has a suction hose attachment hole 2a whose inlet opening is formed on the outer surface of the upper case 2.
The exit opening is located in the hole 2c formed in the lower surface 2b.

On the other hand, the lower case 3 has a built-in water container 5 for storing water. The upper opening of the water container 5 is covered with a water container lid 4, and the water container 5 and the water container lid 4 constitute a dust collecting section. A double tubular wall 12 consisting of an inner tube 10 and an outer tube 11 is provided on the lower surface side of the water container lid 4, integrally with the water container lid 4, in a hanging state with the axial length direction substantially aligned with the vertical direction. ing. The upper end of the inner tube 10 is disposed to surround a through hole 4a formed in the center of the water container lid 4.

The diameter of the outer tube 11 is smaller than the inner diameter of the upper part of the water container 5, and a gap is formed between the outer tube 11 and the upper part of the water container 5 at a desired distance. The lower ends of the inner tube 1o and the outer tube 11 are spaced upward from the water surface of the water container 5 at approximately the same height.
A lower suction tube 6 is provided between the outer tube 11 and the outer tube 11 . This suction tube lower part 6 and the suction tube upper part 7 constitute a suction tube.

The suction tube lower part 6 has a vertical portion 6a with the suction direction being vertical.
and a horizontal portion 6b with the suction direction in the horizontal direction. The vertical portion 6a has its upper portion passed through the water container lid 4, and its upper opening coincides with the lower end opening of the suction tube upper portion 7. The lower part of the vertical part 6a is connected to one end side of the horizontal part 6b, and the vertical part 6a and the horizontal part 6b are in communication. The horizontal portion 6b exists between the inner tube 10 and the outer tube 11,
The suction direction at the opening on the other end side is made to coincide with the substantially horizontal direction, and is oriented, for example, in the tangential direction of the circumferential surface of the inner tube 10.

In addition, this suction direction may be made to substantially correspond to the tangential direction of the outer tube 11 and the circumferential surface of the water container 50. Further, the suction tube lower portion 6 is fixed to the water container lid 4 with, for example, a screw (not shown). Preferably, the lower outer surface of the horizontal portion 6 is at a height that substantially coincides with the lower end of the tubular wall 12.

When the upper case 2 is placed on the lower case 3 configured as described above, the suction port 1a of the suction motor 1 is arranged so as to face above the through hole 4a.
Gaskets 8 and 9 are provided at predetermined locations between the upper case 2 and the water container M4 to prevent air leakage. Moreover, the suction tube lower part 6 and the suction tube upper part 7 that constitute the suction tube are in a communicating state.

Next, the air flow and water flow in the vacuum cleaner configured as described above will be explained. First, let's talk about airflow.

Due to the suction operation of the suction motor 1, air sucked in from a suction hose (not shown) is introduced into the interior through the suction pipe upper part 7 and the suction pipe lower part 6 as shown by the arrow.
At the horizontal portion 6b, the suction direction is set to the horizontal direction, and the suction direction exits from the opening on the other end side in that direction. Therefore, since the air flow does not rush toward the water surface, the generation of water droplets can be prevented. Then, in the direction in which the air exits in the horizontal direction, there are an inner tube 1o and an outer tube 11 on both sides, so that the air passes through them. At this time, the inner tube 10 and the outer tube 1
1 is circular, so air also flows in a circular manner according to the shape, and is then guided into the inner tube 1o, which is strongly sucked by the suction motor 1. During this time, dust contained in the suction air falls into the water and is collected.

After that, the dust-removed air is transferred to the suction port 1a of the suction motor.
After entering, it is discharged to the outside of the upper case 2.

Next, water flow will be explained.

When the airflow as described above passes between the inner tube 10 and the outer tube 11, it draws a circular shape, so the water stored in the water container 1 becomes white depending on the movement of the airflow. A rotating water stream will be formed as shown by the arrow mark. The water surface of this water stream rises up the inner peripheral surface of the water container 5 due to the action of centrifugal force, as shown by the dashed line in FIG. 1, and a large amount of water exists on the outside of the water container 5.

Therefore, in the vacuum cleaner according to the present invention, since the above-described rotating water flow is generated, the water is less likely to be disturbed even if large vibrations are generated due to movement of the vacuum cleaner or the like. Furthermore, even if the water becomes turbulent, the suction motor 1 is unlikely to suck up water (water droplets, etc.) because the tubular wall has a double-tube structure. Specifically, when the outer tube 11 is omitted and only the inner tube 10 is provided as shown in FIG. When the state changes to the state shown by the dashed-dotted line and turbulence occurs in the water,
Since there is no outer tube, the turbulent water cannot be calmed down, resulting in a larger turbulence that reaches the inside of the inner tube 10, which tends to cause water (water droplets, etc.) to be sucked into the suction motor 1. On the other hand, as shown in Figure 3 (a), in the case of a double pipe structure, even if the water is disturbed, most of the disturbed water (indicated by the dashed line) is outside. tube 1
1, it becomes difficult to be attracted by the suction motor 1.

FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention, in which the same parts as in FIG. 1 are given the same numbers. In this embodiment, there is a single tubular wall 12' above the water surface of the water container 5.
A suction pipe lower part 6 is formed so as to rotate on the outside of the tubular wall 12', and a protruding rib 5a for water flow adjustment is provided on the bottom surface of the water container 5. This protruding rib 5a is formed to push water as much as possible to the outside of the water container 5, and in this example, as shown in FIG.
Eight pieces are formed at equal positions at the center opening of the water container 5, tilted with respect to the radial direction of the water container 5.

Therefore, in this embodiment, as shown in FIG. 5, the air flow rotates above the water container 5, and in response, the water (indicated by the open arrow) also rotates as before. Therefore, even if large vibrations occur due to movement of the vacuum cleaner, the water is less likely to be disturbed. Moreover, even if turbulence occurs in the water, the water (indicated by the white arrow) is pushed further outside of the water container 5 by the protruding ribs 5a as shown in FIG. As shown in the figure, there is less water below the suction motor 1, making it difficult for water to be sucked into the suction motor 1. In this example, the number of protruding ribs 5a is eight, but one or more may be formed, and the protruding ribs 5a may not be provided in an even positional relationship. Furthermore, the fifth
As shown in the figure, it may be formed in a straight state without being curved.

In the two embodiments shown in FIGS. 1 and 4, the lid 4 is provided on the water container 5 side, but the lid 4 may be provided on the upper case 2 side. That is, by fixing the upper case 2 on the lower case 3, the lid 4 provided on the upper case 2 side may be configured to cover the water container 5 provided on the lower case 3 side.

Further, in the above embodiment, M4 is not provided separately from the lower surface of the upper case 2, but it may be configured using the lower surface of the upper case 2.

As described in detail above, in the case of the present invention, the sucked air flow exits from the suction tube in a rotating state above the water surface of the water container, so that the air flow directly hits the water surface. This makes it difficult for water droplets to splash up, and the water in the water container rotates in a whirlpool due to the rotating airflow.
Even if large vibrations (shaking) occur due to the movement of a vacuum cleaner, the water is less likely to be disturbed. Even if the water flow is turbulent, by making the tubular wall have a double pipe structure, or by forming protruding ribs on the bottom of the water container even if it has a single pipe structure, water will be difficult to be sucked into the suction motor. This makes it possible to eliminate the need for a 4° rotary suction plate for draining water, which was previously required.
This has the excellent effect of preventing the deterioration of balance and the generation of noise and vibration, as well as reducing the decrease in air volume and improving suction efficiency.

[Brief explanation of drawings]

FIG. 1 is a longitudinal cross-sectional view showing one embodiment of the vacuum cleaner according to the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG.
The figure is a cross-sectional view comparing the effects of (a) when the tubular wall has a double-wall structure and (b) when the tubular wall has a single-wall structure, and FIG. 4 is a longitudinal cross-sectional view showing another embodiment of the present invention. Figure 5 is A- of Figure 4.
A sectional view taken along line A, FIG. 6 is a plan view showing water flow near the protruding rib, FIG. 7 is a front sectional view showing water flow near the protruding rib, and FIG. 8 is a front view showing a conventional vacuum cleaner. , FIG. 9 is a longitudinal sectional view of the vacuum cleaner. DESCRIPTION OF SYMBOLS 1... Suction motor, 1a... Suction port, 4... Water container lid, 5... Water container, 5a... Protruding rib, 6...
Suction pipe lower part, 7... Suction pipe upper part, 10... Inner pipe, 1
1... Outer tube, 12... Double tubular wall, 12'...
Single tubular wall. Figure 2 \ Wanted Figure 3 (a) Figure 3 (b) Figure \ Recruitment No. 7 Figure main circle a6 Figure 8

Claims (2)

[Claims] (1) External air sucked in by the suction hose is passed through the suction pipe with openings at both ends inside the suction hose attachment hole of the vacuum cleaner case and the water container with a lid built into the vacuum cleaner case. The vacuum cleaner uses a suction motor to suck air through a through hole formed in the lid of the water container after being guided into the water container, and the vacuum cleaner is connected to the inner pipe while floating above the water surface on the underside of the lid of the water container. A double tubular wall consisting of an outer tube and an outer tube is provided so that the axial direction is substantially vertical, and the upper end of the inner tube surrounds the through hole. A vacuum cleaner characterized in that the vacuum cleaner is disposed above the water surface between the tube and the outer tube, and the suction direction of the opening is oriented substantially parallel to the water surface. (2) External air sucked in by the suction hose is passed through the suction hose attachment hole of the vacuum cleaner case and the suction tube with openings at both ends inside the water container with a lid for water storage built into the vacuum cleaner case. The vacuum cleaner uses a suction motor to suck air through a through hole formed in the lid of the water container after being introduced into the water container, and the vacuum cleaner has a single tubular shape floating above the water surface on the underside of the lid of the water container. The wall has an axial direction substantially vertical, and is provided so as to surround the through hole at its upper end, and the opening of the suction pipe on the water container side is between the tubular wall and the circumferential surface of the water container, The water container is provided above the water surface, and is formed so that the suction direction of the opening is oriented approximately parallel to the water surface, and furthermore, a protruding rib for adjusting water flow is formed on the bottom surface of the water container. vacuum cleaner.