RU2605830C2 - Vacuum cleaner with closed cleaning cycle - Google Patents

Abstract

FIELD: household items.

SUBSTANCE: design of vacuum cleaner enables to clean without air outlet from vacuum cleaner housing, considerably making easier the cleaning process, improving quality of cleaning, reducing noise level, making it possible to use filters of different designs in both closed and normal operating mode.

EFFECT: reduces suction effect of brushes and makes operation more comfortable.

1 cl, 2 dwg

Description

The invention relates to household appliances intended for cleaning rooms, in particular vacuum cleaners. From the prior art, we know vacuum cleaners of various manufacturers, such as: Samsung http://www.samsmg.com/en/promo/vc4000/?cid=en_sem_googleru_HA_b&p_vc 4000_20151003, Zelmer http://www.eldorado.ru/cat/2930891 / ZELMER /, Kurcher, LG, Thomas, Bosch and others http: //pylesosov.html.

Also known are inventions that increase the manufacturability of vacuum cleaners. This is a patent of the Russian Federation 2101997, publ. December 27, 2009, RF patent 2416356, where a fairing made of noise-absorbing material is used to reduce noise, patent EP 0345699, where an elongated air path through the maze is used for noise absorption, patent 20114799, where the essence of the dust cleaning method is to apply pulses of compressed air for separation of particles from a solid surface.

Of interest is the patent for the invention No. 2029486, publ. February 7, 1995, where the authors proposed a dust collector nozzle, which significantly improves the ability to remove dust from containers and vessels that have a rectangular shape; nozzles has a scraper through which air is supplied.

According to the method of cleaning, vacuum cleaners can be divided into three groups:

1. Vacuum cleaners with a traditional way of cleaning.

2. Cyclonic type vacuum cleaners.

3. Vacuum cleaners with aquafilters.

All vacuum cleaners, despite many advantages, have a number of disadvantages.

All of them make a lot of noise, do not give complete cleaning and filtering, electrobrushes quickly put fabrics out of order, the use of washing chemical solutions leads to the fact that when they dry, chemical dust is formed, which is very dangerous for health. Aquafilters do not trap dust inside air bubbles, poorly retain debris that is not wettable in water. Water in the aquafilter quickly turns into an environment for the reproduction of bacteria, which can lead to colonization of the premises by microorganisms. It also greatly complicates the operation of vacuum cleaners with a strong suction effect, and especially when cleaning light objects.

As the closest prototype, as one of the most multifunctional, the Elektra vacuum cleaner manufactured in Italy is selected.

The vacuum cleaner is equipped with an electric brush, has a steam generator, which allows you to treat surfaces with steam under pressure.

The vacuum cleaner also has disadvantages:

1. Strong suction effect of brushes to the surface.

2. The electric brush quickly destroys fragile fabrics and removes lint.

3. The possibility of burns with steam t 160 ° and a pressure of 4-5 rem is dangerous.

The objective of the invention is to further improve the manufacturability of vacuum cleaners and eliminate or significantly reduce the existing disadvantages.

The problem is solved in that the vacuum cleaner, consisting of a housing 1, an electric motor 2, replaceable filters 3, an air duct system 6, 9 and valves 7, 8, 10, has two air ducts that are connected to an air intake brush (Fig. 2), consisting of slit-like nozzles, through one of the ducts the air is sucked in and passes through the filters 3, and along the other duct 9 with the outlet valve 7 closed, the cleaned air is pumped to the air intake brush (Fig. 2), which consists of several elongated suction and discharge nozzles 6 and 9 , located s alternately, wherein the extreme nozzles (to no dust is blown out) always suction, thereby a closed cycle without cleaning air outlet of the cleaner body.

The vacuum cleaner operates in several modes.

1. Normal vacuum cleaner mode:

the valve 8 of the duct 6 (Fig. 1) is open;

the valve 10 of the duct 9 is closed;

outlet valve 7 is open.

In this mode, air is sucked in through the duct 6, passes through intermediate filters, if necessary through additional filters of any design, and exits through the outlet valve 7 (for simplicity, the valves are shown as throttles).

The number 1 indicates the body of the vacuum cleaner, the number 3 denotes pre-motor filters, the number 6 indicates the suction duct.

2. Closed-loop cleaning mode:

the valve 8 of the duct 6 is open;

the valve 10 of the duct 9 is open;

outlet valve 7 is closed.

In this mode, air passes through the air intake brush (Fig. 2), the suction duct 9 (Figs. 1 and 2) and pre-motor filters 3, enters the air duct 9 and is pumped to the combined brush (Fig. 2), consisting of suction and injection nozzles. When the brush moves on a porous surface, successive pumping and suction of air occur in each area of the surface to be cleaned. Due to this, dust particles constantly change their position and their cleansed tissues come out easier. In this case, soft tissues bend in waves, which will also contribute to better cleansing. An effect similar to the effect of knocking out dust from their carpets will occur. In this case, all the dust, without leaving the vacuum cleaner, will remain in the filters. Since the blower nozzles of the brushes will repel the workpiece with the same force as the suction nozzles, the effect of suctioning the brushes to the surface will decrease, and due to the fact that air does not leave the vacuum cleaner body, noise will be significantly reduced, especially when using noise-absorbing materials for the vacuum cleaner body.

In FIG. 1, numbers 4 and 5 indicate the seats for replaceable filters. It can be HEPA, cyclone or aquafilters.

Figure 2 on the section <−> shows the channels that create the vacuum, and the signs <+> - pressure.

The number 11 indicates the fabric to be cleaned.

Thus, the proposed model of a vacuum cleaner significantly improves the quality of cleaning. With a closed operation cycle, the dust completely remains in the filters, the noise level is reduced, and due to a decrease in the suction effect, the work becomes more comfortable. A sufficient volume of the vacuum cleaner will allow you to install filters of various designs and provide the possibility of their work in different modes. Also, when working in a closed cleaning mode, air is not blown into the room and dust on objects not subject to cleaning does not move.

Claims (1)

 An electric vacuum cleaner comprising a housing, an electric motor with a fan, air ducts with valves built into them, a dust brush, characterized in that to the dust brush consisting of several injection and suction nozzles arranged alternately, where the extreme nozzles are always suction, two air ducts are suitable, according to one of which the air is sucked in through the suction nozzles and is filtered, and according to the other, the already cleaned air is supplied to the blowing nozzles of the brush, due to which a closed cycle is carried out without cleaning air outlet of the cleaner body.

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