JPH11146850A - Dust collecting container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate cleaning inside a cyclone shroud and a cyclone taper and also to eliminate an air leakage. SOLUTION: A dust collecting container 3 is constituted by providing a dust collecting bottle 31, a cyclone tube 32 arranged in the center of the lower half part of the dust collecting bottle 31 by airtightness, a cyclone seal 33 fitted to the upper part of the cyclone tube 32 by airtightness, the cyclone taper 34 which is supported by the cyclone seal 33 in the middle of an outer periphery and arranged in the center of the inside of the dust collecting bottle 31, the cyclone shroud 35 for airtightly fitting the upper end part of the cyclone taper 34 so as to be fitted to the dust collecting bottle 31 and a shroud net 36 which is arranged in the lower part of the cyclone shroud 35 so as to enclose the upper outer periphery of the cyclone taper 34. The cyclone taper 34 is fitted to the cyclone shroud 35 by airtightness with an O-ring 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust container, and more particularly to a dust container used in a dual cyclone type electric vacuum cleaner (hereinafter simply referred to as a vacuum cleaner).

[0002]

2. Description of the Related Art In a conventional dual cyclone type vacuum cleaner, a dust collection container is formed of a transparent resin so that the inside thereof can be seen through, and an airtight seal is provided at the center of the lower half of the dust collection bin. A cyclone tube, a cyclone seal hermetically attached to the top of the cyclone tube, and a cyclone taper that is supported in the middle of the outer periphery by the cyclone seal and disposed at the center of the inside of the dust collection bin,
The cyclone taper was configured to include a cyclone shroud whose upper end portion was press-fitted and fitted into the dust collection bin, and a shroud net arranged below the cyclone shroud so as to surround the upper periphery of the cyclone taper.

In such a conventional dust collecting container, the cyclone shroud and the inside of the cyclone taper cannot be cleaned because the cyclone taper is press-fitted into the cyclone shroud and fixed.

In a conventional dust container, for example, FIG.
As shown in (1), since one or two air inlets 554 are provided from the cyclone shroud 55 to a cyclone taper (not shown), the rotational force of the secondary cyclone generated in the cyclone taper is weak, and There was a limit in increasing the dust collection efficiency of the car. This means that each air inlet 5
This is because the cross-sectional area of 54 is relatively large, so that when the airflow flows into the cyclone taper, the airflow tends to be drawn toward the center of the circle of the secondary cyclone. In FIG. 5, reference numeral 552 denotes an air discharge port, 553 denotes a central exhaust port,
555 indicates an air chamber.

[0005]

In the above-mentioned conventional dust collecting container, since the cyclone taper is press-fitted and fixed to the cyclone shroud, the inside of the cyclone shroud and the cyclone taper cannot be cleaned. At the same time, there is a problem that perfect airtightness cannot be obtained and air leakage occurs.

Also, since the air inlet from the cyclone shroud to the cyclone taper is at one or two places, the air flow flowing into the cyclone taper tends to be caught in the center of the circle of the secondary cyclone. There is a problem in that the efficiency of separating dust from a dirty air flow becomes poor, and the dust collection efficiency of the vacuum cleaner cannot be increased.

[0007] A first object of the present invention is to attach a cyclone taper to a cyclone shroud detachably and air-tightly to facilitate cleaning of the inside of the cyclone shroud and the cyclone taper and to eliminate air leakage. An object of the present invention is to provide a dust collection container.

A second object of the present invention is to increase the number of air inlets from the cyclone shroud to the cyclone taper at three or more places to efficiently separate dust from the dirty air flow, thereby improving the dust collection efficiency of the vacuum cleaner. An object of the present invention is to provide a dust collection container that is improved.

[0009]

According to the present invention, there is provided a dust collecting container comprising: a dust collecting bin; a cyclone tube hermetically disposed in the center of a lower half of the dust collecting bin; A cyclone seal attached to the cyclone taper, a cyclone taper supported in the middle of the outer periphery by the cyclone seal and arranged at the center of the inside of the dust collection bin,
A cyclone shroud fitted airtightly to the upper end of the cyclone taper and fitted to the dust collection bin, and a shroud net arranged below the cyclone shroud to surround the upper periphery of the cyclone taper. In the dust collecting container, the cyclone taper is hermetically attached to the cyclone shroud via an O-ring.

[0010] The dust collecting container of the present invention comprises a dust collecting bin,
A cyclone tube hermetically disposed in the center of the lower half of the dust bin, a cyclone seal hermetically mounted on the upper portion of the cyclone tube, and a mid-periphery supported by the cyclone seal; A cyclone taper disposed at the center of the inside of the bin, a cyclone shroud fitted airtightly at the upper end of the cyclone taper and fitted to the dust collection bin, and an upper portion of the cyclone taper at a lower portion of the cyclone shroud. In a dust collecting container including a shroud net arranged to surround an outer circumference, three or more air inlets to the cyclone taper provided in the cyclone shroud are provided.

[0011]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a side view showing the appearance of a dual cyclone type vacuum cleaner to which the dust container according to one embodiment of the present invention is applied. This dual cyclone type vacuum cleaner is configured to collect dust in a dust collection container without using a dust collection bag such as a paper pack.
The dust collection container 3 according to the present embodiment is configured to be detachably attached to the cleaner main body 1 that has become movable. Further, a suction hose 4 is detachably attached to the cleaner body 1 from the upper front side.

FIG. 1 is a sectional view showing the internal structure of a dust container 3 according to the present embodiment. The dust collecting container 3 includes a dust collecting bin 31 formed of a transparent resin so that the inside thereof can be seen through, and a cyclone tube 32 airtightly disposed by an O-ring 37 at the center of the lower half of the dust collecting bin 31. A cyclone seal 33 airtightly attached to the upper part of the cyclone tube 32, a cyclone taper 34 supported in the middle of the outer periphery by the cyclone seal 33 and arranged at the center of the inside of the dust collection bin 31, and a cyclone taper 34.
The upper end of the cyclone shroud 35 is airtightly fitted via an O-ring 38 and is also airtightly fitted to the dust collection bin 31 via an O-ring 39, and the cyclone is press-fitted into a lower portion of the cyclone shroud 35. Shroud net 3 arranged to surround the upper periphery of taper 34
6 is comprised.

FIGS. 3A and 3B show a top view and a side view of the cyclone shroud 35, respectively. The cyclone shroud 35 is formed in a circular lid shape, and has an air intake port 351 for taking in air containing dust from the cleaner body 1 on an upper surface thereof, and an air for discharging airflow to the dust collection bin 31. An ejection port 352 is provided. In the center of the cyclone shroud 35, a central exhaust port 353 through which purified air is returned from the dust collection bin 31 to the cleaner body 1 is provided.

FIG. 4 is a cross-sectional view of A- of the cyclone shroud 35.
FIG. 3 is a sectional view taken along line A ′. As can be seen from this sectional view,
The air flow that has flowed into the cyclone shroud 35 from the dust collection bin 31 via the shroud net 36 passes through the air chamber 355 equally divided into three along the outer circumference, and is supplied with a clockwise rotational force from the air flow inlet 354. It is blown out toward the inner wall of the cyclone taper 34. The cross-sectional area of each air inlet 354 is reduced to 2/3 of the cross-sectional area of each air inlet 554 in the conventional cyclone shroud 55 shown in FIG. Thereby, the sum total of the cross-sectional areas of the air inlet 354 becomes the same as the conventional one, and the suction power of the vacuum cleaner can be secured.

Next, the operation of the dust container 3 according to the embodiment having the above-described configuration will be described.

When power is supplied to the cleaner body 1, a motor fan unit (not shown) is driven, and the suction hose 4, the cleaner body 1, the dust collecting container 3, and the air flow communicating with the cleaner body 1 are formed. Occurs.

The air containing dust sucked into the cleaner body 1 from the suction hose 4 enters the cyclone shroud 35 from the air intake port 351, and rotates toward the inner wall of the dust collection bin 31 from the air discharge port 352. It is exhaled while being given. As a result, the airflow descends while forming an outer cyclone (primary cyclone), leaving relatively large dust between the dust collection bin 31 and the cyclone tube 32, and rotates again along the cyclone tube 32. While rising.

The air flow that has risen to the shroud net 36 reenters the cyclone shroud 35 from a number of through holes formed in the shroud net 36 through the gap between the shroud net 36 and the cyclone taper 34.

In the cyclone shroud 35, the air flow is transmitted from the air inlet 354 to the cyclone taper 34 while being further rotated by the three air chambers 355.
It is exhaled toward the inner wall surface. As a result, the air flow descends while forming an inner cyclone (secondary cyclone), falls down from the lower end opening of the cyclone taper 34 to fine dust on the bottom wall of the dust collection bin 31, and becomes a central ascending airflow again. The air is returned to the cleaner body 1 from the central exhaust port 353 of the cyclone shroud 35.

The purified air flow returned from the dust collecting container 3 to the cleaner body 1 passes through a motor fan unit and is provided at an exhaust port (not shown) provided on the back of the cleaner body 1.
Is discharged to the outside.

By the way, by using a vacuum cleaner, the dust collecting bin 3
When it is necessary to clean the dust collection container 3 due to accumulation of dust in the dust collection container 1, the dust collection container 3 is first removed from the cleaner body 1.

Next, hands are attached to the dust collecting bin 31 and the cyclone shroud 35, respectively, and the two are separated at the O-ring 39. Then, the dust collection container 3 becomes the dust collection bin 3
1, cyclone tube 32 and cyclone seal 3
3 and a portion including a cyclone shroud 35, a cyclone taper 34 and a shroud net 36.

Therefore, large dust accumulated between the inner wall surface of the dust collection bin 31 and the outer wall surface of the cyclone tube 32, and the central bottom wall surface of the dust collection bin 31 and the cyclone tube 3
The small dust collected between the inner wall of the
Discard in a trash can by repeating step 1. Furthermore, if necessary, the inside of the dust collection bin 31 can be washed with water together with the cyclone tube 32 and the cyclone seal 33. At this time, the dust collection bin 31, the cyclone tube 32, and the cyclone seal 33 are separated at the O-ring 37, and the inner wall thereof can be sufficiently washed. After washing with water, the dust collection bin 31, the cyclone tube 32 and the cyclone seal 33 can be airtightly integrated again by the O-ring 37.

On the other hand, the cyclone taper 34 is removed from the cyclone shroud 35 at the O-ring 38, and the cyclone shroud 35, the shroud net 36, and the cyclone taper 34 can be washed with water. After washing with water, the cyclone shroud 35 and the cyclone taper 34 can be airtightly integrated again by the O-ring 38.

The cyclone shroud 35 is airtightly fitted into the opening of the dust collecting bin 31 via an O-ring 39, so that the dust collecting bin 31, the cyclone tube 32
And a cyclone seal 33 and a cyclone taper 34,
Cyclone shroud 35 and shroud net 36
Can be integrated again as the dust container 3. At this time, the middle part of the outer circumference of the cyclone taper 34 is hermetically held by the cyclone seal 33.

In the above embodiment, the number of the air inlets 354 provided in the cyclone shroud 35 is three. However, even if the number of the air inlets 354 is four or more, the same effect as that of the present embodiment can be obtained. Nor. At this time, it is needless to say that it is desirable to keep the total sum of the cross-sectional areas of the air inlets constant in order to secure the suction power of the vacuum cleaner.

[0028]

As described above, according to the present invention,
Since the cyclone taper is detachably and airtightly attached to the cyclone shroud via an O-ring, the inside of the cyclone shroud and the cyclone taper can be easily cleaned, and air leakage can be eliminated. effective.

Further, according to the present invention, since the number of air inlets from the cyclone shroud to the cyclone taper is three or more, the cross-sectional area of each air inlet is reduced, and the air inlets are tangential to the outer circumference of the secondary cyclone. By sending the airflow, there is an effect that the dust can be efficiently separated from the dirty airflow and the dust collection efficiency of the vacuum cleaner can be increased.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an internal configuration of a dust container according to one embodiment of the present invention.

FIG. 2 is a side view showing an external appearance of a vacuum cleaner in which the dust container according to the present embodiment is arranged.

FIGS. 3A and 3B are a top view and a side view of the cyclone shroud in FIG.

FIG. 4 is a sectional view taken along line AA ′ of the cyclone shroud in FIG. 3;

FIG. 5 is a cross-sectional view of a conventional cyclone shroud.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Wheel 3 Dust collection container 4 Suction hose 31 Dust collection bin 32 Cyclone tube 33 Cyclone seal 34 Cyclone taper 35 Cyclone shroud 36 Shroud net 37,38,39 O-ring 351 Air intake port 352 Air discharge port 353 Center Exhaust port 354 Air inlet 355 Air chamber

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Yamazaki 1-28-15 Shinjuku, Shinjuku-ku, Tokyo Inside Silva Seiko Co., Ltd. (72) Inventor Jun Tamura 1-28-15 Shinjuku, Shinjuku-ku, Tokyo Silvaー Seiko Co., Ltd.

Claims (2)

[Claims] 1. A dust collection bin, a cyclone tube hermetically disposed at the center of the lower half of the dust bin, a cyclone seal hermetically mounted on an upper portion of the cyclone tube, and a cyclone seal. A cyclone taper which is supported in the middle of the outer periphery and is arranged at the center of the inside of the dust collecting bin, and a cyclone shroud which is fitted in the dust collecting bin while hermetically fitting the upper end of the cyclone taper; In a dust collecting container comprising a shroud net disposed at a lower portion of the cyclone shroud so as to surround an upper outer periphery of the cyclone taper, it is preferable that the cyclone taper is hermetically attached to the cyclone shroud via an O-ring. Dust collection feature. 2. A dust collection bin, a cyclone tube hermetically arranged at the center of the lower half of the dust bin, a cyclone seal hermetically mounted on an upper portion of the cyclone tube, and a cyclone seal. A cyclone taper which is supported in the middle of the outer periphery and is arranged at the center of the inside of the dust collecting bin, and a cyclone shroud which is fitted in the dust collecting bin while hermetically fitting the upper end of the cyclone taper; In a dust collection container including a shroud net disposed below a cyclone shroud so as to surround an upper periphery of the cyclone taper, three or more air inlets to the cyclone taper provided in the cyclone shroud are provided. A dust container characterized by the following.