JPS6058123A - Wet and dry type cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a wet-and-dry vacuum cleaner that is capable of suctioning water, dry garbage, dust, etc. It has both the ability to capture dust that has dried during storage, and at the same time, it can be sucked out without any troublesome operations, and it also has a filtering effect on dry dust using the water absorbed into the tank. This invention relates to a wet-and-dry vacuum cleaner configured as follows.

[Background of the invention]

Traditionally, so-called water-filter vacuum cleaners use water as a filter for dry dirt and dust, which collects dirt and dust in the water by letting air mixed with dirt sucked in from the suction port collide with the water surface. However, in reality, relatively heavy dust like grains of sand is collected in the water, but fine dust is not collected in the water and is returned to the room from the exhaust port of the vacuum cleaner. It gets scattered. Such a one-type water filter was ineffective against dry fine dust and could not withstand use as a vacuum cleaner.

On the other hand, conventional wet-and-dry vacuum cleaners can be roughly divided into two types: The first is that it can be used both wet and dry without changing the filter.This means that when the filter is wet, it gets wet, and the float is inside the filter. Due to its location, water must be able to easily enter the filter. For this reason, filters with relatively coarse textures have been used that do not increase ventilation resistance much even when wet with water and allow water to pass through them well. Therefore, the filter's collection effect on dry fine dust is lost,
The dust-catching performance when dry was poor. The second type is a type in which the filter can be attached and removed depending on whether it is wet or dry.

In other words, remove the filter when wet,
A filter can be attached when it is dry. Although this method satisfies both wet and dry performance, it has the drawback that the customer has to disassemble the vacuum cleaner and install and remove the filter each time, making operation cumbersome. There is.

[Purpose of the invention]

An object of the present invention is to provide a wet-and-dry vacuum cleaner that compensates for the drawbacks of the water filter vacuum cleaner described above and can also suck up dry dirt at the same time.

[Summary of the invention]

The present invention uses a cloth filter 1 in a wet-and-dry vacuum cleaner, which has sufficient dust-capturing properties for fine dust that cannot be collected by a water filter alone, and further uses a #J-proof structure for this cloth filter. It is characterized by not only preventing water from getting wet, but also having a water filter effect.

[Embodiments of the invention]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the structure of a wet-and-dry vacuum cleaner according to the present invention, and in the figure, an electric blower 2 is built in an upper case l. The electric blower 2 is provided with a cooling fan 3 at its upper part, a main fan 4 for generating suction airflow at its lower part, and is covered with a rubber motor cover 5. Further, a case cover 6 that completely forms an air intake port for the cooling fan 3 and a handle 7 are attached to the upper surface of the upper case 1. In the electric blower, the motor cover 5 is fixed to the exhaust cover 11 by a lower packing part 8, a tightening plate 9, and screws 1O. Furthermore, the exhaust cover 11 is integrally fixed to the motor support plate 12. On the other hand, an inner tank 14 is supported within the tank 13 via a packing 15. Here Patsukin 15
It is provided to ensure airtightness between the id motor support plate 12 and the tank 13. A cloth filter 16 is provided inside the inner tank 14. This cloth filter 16 is attached to a packing 17 for keeping the inner tank 14 and motor support plate 12 airtight.

The packing frame 18 is for maintaining the shape of the packing 17. Further, the expander 19 is designed to completely prevent the fabric filter 16 from shrinking due to the suction of the electric blower 2. There is an opening 20 at the bottom of the inner tank 14, and a check valve 21 made of rubber is attached as shown in the figure. Further, a partition plate 22 is fixed to the lower part of the inner tank 14 with screws. As shown in the figure, a recess for supporting a float 23 is formed in the center of the partition plate 22, and openings 24 are provided in the bottom surfaces of the four parts. Furthermore, the partition plate 22
A partition gasket 25 is fitted and twisted around the outer periphery of the inner tank 14, and the inside of the inner tank 14 is partitioned into an upper chamber and a lower chamber by a partition plate 22. The suction guide 26 is installed at a position opposite to the suction port 27, and is used to divert water, dirt, dust, etc. sucked in through a hose (not shown) into the lower chamber. 28 is a caster, and 29 is a clamp used to lock the upper case and the tank.

FIG. 2 is a view of the case cover 6 seen from below, and is fixed by screwing into the screw bosses 30 from the inside of the upper case l. Also, the lips 31 forming a part of the circumference fit into the upper part of the motor cover 5 to support the upper part of the electric blower 2, and the air for the cooling fan is sucked in from between the lips 31. It will be done.

FIG. 3 is a perspective view of the exhaust cover 11, and the flanges around the bottom are at different levels, so that the exhaust from the main fan comes out from the part 32 and the exhaust from the cooling fan comes out from the part 33. It has become.

FIG. 4 is a perspective view showing a state in which the partition packing 25 is fitted into the partition plate 22. A notch 34 matching the shape of the suction guide 26 of the tank is formed in the partition plate 22, and an opening 35 is provided on the opposite side of the notch 34 as shown in the figure.

FIG. 5 shows that the notch 34 and the suction guide 26 are connected to the first
It is a perspective view which shows the state when it is assembled as shown in a figure.

Next, the operation in this embodiment will be explained.

Ozumoto vacuum cleaner? Water as a wet cleaner? When sucking, water is sucked in from a suction port (not shown), passes through a hose (not shown) together with airflow, reaches the suction port 27, and is directed downward by the suction guide 26. It is converted and collected at the bottom of the tank 13. Thereafter, water gradually accumulates in the tank 13 and the water level rises, causing the float 23 to be pushed up. The float 23 closes the bottom opening 20 of the inner tank 14 with its upper surface, and the negative pressure inside the tank 13 disappears, making water absorption impossible.

Next, there are two ways to use this vacuum cleaner as a dry cleaner: When you add some water sound and use the effect of a water filter, and when do you use water at all? This is a case where only dry garbage and dust are sucked in without entering. In the latter case, heavy garbage is collected under the partition plate 22, and fine dust is filtered through the openings of the partition plate and the openings 20 of the inner tank 14 by the cloth filter 16 and into the inner tank 14. It will be accumulated. The former case is the main use of the present invention and will be described in detail below.

The airflow containing dirt is caused to collide with the water surface by a suction guide 26. At this time, all the fine dust and most of the garbage such as sand grains and cotton garbage are collected in the water. garbage? In order to efficiently collect water into the water, the air flow velocity when colliding with the water surface from below the suction guide 26, the distance between the water surface and the suction guide, and the size of the water filter chamber formed by the partition plate 22 and the bottom of the tank 13 must be adjusted. Although determined by various factors such as shape, in this embodiment, the distance between the lower surface of the suction guide 26 and the water surface is suitably 5 to 10 degrees. Next, the airflow containing fine dust is sucked into the upper surface of the partition plate 22 through the opening 35 of the partition plate 22. Here, the opening 35 is the suction guide 2
6, this is the suction guide 26
This is because the water surface in the vicinity is violently undulating due to the collision of air currents, so if it is provided in this vicinity, there is a risk that a large amount of water droplets will be sucked into the upper surface of the partition plate 22 and cause it to break off.

The air e exiting from the opening 35 to the top side of the partition plate 22 further flows toward the bottom opening 20 of the inner tank 14,
It reaches inside the inner tank 14. After that, the cloth filter 161
'Thus, fine dust is filtered and stored in the inner tank 14. The check valve 21 is for completely preventing the fine dust accumulated in the inner tank 14 from falling onto the float. Here, from the opening 35 of the partition plate 22,
The airflow coming out on the top side of the plane contains one drop of water. By the time this reaches the opening 20 of the inner tank 14, the partition plate 2
2 and draining plates 36 and 37 provided on the inner tank 14
By impinging on the inner tank 14, only the air flow reaches the opening 20, and water droplets are prevented from entering the inner tank 14. Of course, this also applies to the case of water absorption described above in this embodiment. Furthermore, when the water level is lower than this, the opening 24 of the partition plate is closed by the weight of the float 23, and when the water level rises and pushes up the float 23, the opening 24 of the partition plate is closed.
The opening 24 is submerged in water, that is, the opening 24 is always closed by the float 23 or water, and all airflow passes through the opening 35 to the drain plates 36, 37.
', water droplets do not enter the width of the inner tank 14.

In this way, water droplets are removed by the draining plates 36 and 37,
The cloth filter E6 does not get wet easily and completely captures all fine dust, so it can exhibit the same performance as a normal dry vacuum cleaner. (If water adheres to the cloth filter 16, the ventilation resistance will increase significantly and cause a decrease in suction power.) In this way, the water is filtered by the cloth filter 16 and sucked into the main fan 4. The air flow is exhausted from the exhaust port 38 into the exhaust cover 11, and the exhaust cover 11 shown in FIG.
is discharged into the atmosphere through the flange 32 portion at.

On the other hand, the cooling air flow of the electric blower is sucked in between the lip 31 of the case cover 6, discharged into the motor cover 5 through the opening 40 of the motor housing 39, and further discharged into the upper case through the opening 41. , is discharged into the atmosphere from the gap 42 between the 330 m flange of the exhaust cover and the upper case.

〔Effect of the invention〕

According to the present invention, water and dry garbage can be simultaneously sucked without impairing water absorption performance or dust collection performance, and the water filter can be effectively used to completely improve dust collection performance. A wet-and-dry vacuum cleaner can be realized.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the structure of an embodiment of the wet-and-dry vacuum cleaner according to the present invention, Fig. 2 is a perspective view of the case cover seen from the back, Fig. 3 is a perspective view of the exhaust cover, and Fig. 3 is a perspective view of the exhaust cover. FIG. 4 is a perspective view of the partition plate, and FIG. 5 is a perspective view showing the relative positional relationship between the partition plate and the suction guide. l... Upper case, 2... Electric blower, 5... Motor cover, 6... Case cover, 11... Exhaust cover, 12... Motor support plate, 13... Tank, 14 ...Inner tank, 22...Partition plate, 23...
Float, 26...Suction guide.

Claims (1)

[Claims] 1. In a wet-and-dry vacuum cleaner comprising an upper case with a built-in suction source that generates suction airflow, and a tank with a suction port on the side for collecting sucked water, dust, etc., the tank is separated by a partition plate. Separated into two upper and lower chambers, the upper chamber has a built-in filter for filtering dust and has an opening at the bottom with an inner tank gold membrane, while the lower chamber communicates with the suction port provided in the tank. The opening of the inner tank is configured to be able to be closed by being held by a floater partition plate that moves up and down depending on the liquid sucked into the tank, and an opening gold film is provided on the partition plate at a position symmetrical to the suction port to communicate the upper chamber and the lower chamber. A wet-and-dry vacuum cleaner with a unique feature.