Brush unit and vacuum cleaner equipped with brush unit

FIELD: mechanical engineering.

SUBSTANCE: brush unit comprises brush main body having air suction aperture, turbine located within chamber for turbine, said chamber being equipped with air channel, and connection pipe adapted for connecting main casing of vacuum cleaner with main body of brush. Connection pipe is additionally provided with inlet part. Turbine is accommodated only within part of air channel and is positioned centrally of inlet part of connection pipe so as to overlap central portion of inlet part of connecting pipe. Brush unit is used as part of vacuum cleaner.

EFFECT: increased cleaning efficiency and reduced noise created by vacuum cleaner.

6 cl, 7 dwg

 

The technical field to which the invention relates.

The present invention relates generally to vacuum cleaners and, more precisely, to the brush site with design, designed to improve the treatment efficiency, and cleaner, brush containing the node.

Description of the prior art

Typically, the brush node used in a vacuum cleaner, provides actuation of the rotating brush by using the kinetic energy of air flow. Brush the node usually contains the main body of the brush, the brush is in contact with the surface to be cleaned with a vacuum cleaner and the like, to clean the surface from dirt by using rotational motion of the brush. Also provided by the connecting pipe for guiding foreign particles such as dust in the dust box main body of the vacuum cleaner and the turbine, which causes the brush in action.

In U.S. patent No. 5701633 described brush site for a vacuum cleaner having the above-described construction. Brush the node described in the above patent has a turbine mounted over the channel for the passage of air in the chamber for the turbine. Brush the node can increase the source of rotational power of the turbine, however, particles having a relatively large size, cannot pass through the channel for the passage of air and captured by the blade is Bina or stick to the blade of the turbine, resulting in reduced torque power turbine and subsequently reduced suction force of the vacuum cleaner.

The dust captured by the intake air enters the chamber of the turbine and passes through the sharply tapering inlet portion of the connecting pipe so that the flow velocity increases, and there is unwanted noise.

The thickness of the turbine blade, as a rule, is constant, so that the suction force of the vacuum cleaner may not be fully transferred to the turbine, and in that case, when foreign particles such as dust or dirt, pass on the blade surface, particles cannot easily pass through it and therefore may be sticking to the blade surface.

SUMMARY of the INVENTION

The present invention was created to resolve the above problems occurring in the known vacuum cleaners, and the purpose of the present invention is to create a brush unit having a structure designed to improve the effectiveness of cleaning and to reduce noise generated by the vacuum cleaner, and in the creation of a vacuum cleaner that uses this brush node.

To achieve the above objectives developed brush the node that contains the main body of the brush, having a hole for sucking air and a chamber for the turbine, and Luggage for turbine has a passage in which Suha, a turbine mounted in the chamber for the turbine, and the connecting pipe, intended to connect the main body of the vacuum cleaner main body brush, and the wind turbine is only part of the channel for the passage of air. The connecting pipe has an input portion of a connecting pipe, and the turbine can be installed on one side of the input side connecting pipe or in the center of the input side connecting pipe in the chamber for the turbine so that it will cover only a portion of the input side connecting pipe.

The turbine preferably has a variety of blades, with each blade has a uniformly varying thickness when measuring it against the circumference of the internal diameter of the turbine in the direction of the circumference of the outer diameter of the turbine. Each of the blades has a thickness gradually decreasing from the circumference of the internal diameter of the turbine to the circumference of the outer diameter of the turbine.

The input portion of the connecting pipe may optionally have a plot with a gradually decreasing diameter and a section with a constant diameter. In addition, the input portion of the connecting pipes can be made in the form of the fallopian tubes.

To achieve the above objectives developed cleaner, containing a main body of a vacuum cleaner having a dust collector, the main body of the brush having a hole on the I suction air chamber for the turbine, moreover, the chamber for the turbine has a channel for the passage of air, a turbine mounted in the chamber for the turbine, and a connecting tube having an input portion of the connecting pipe and connects the main body of the vacuum cleaner main body brush and turbine installed only within part of the channel for the passage of air.

The turbine can be installed or on one side of the input part of the connecting pipes, or, alternatively, in the center of the input side connecting pipe in the chamber for the turbine so that the turbine will cover only a portion of the input side connecting pipe.

BRIEF DESCRIPTION of DRAWINGS

The above and other objectives, features and advantages of the present invention will become more apparent upon understanding the following detailed description considered with reference to the accompanying drawings, in which:

Fig. 1 is performed with partial spatial separation of elements, perspective view of a vacuum cleaner according to one variant of implementation of the present invention;

Fig. 2A and Fig. 2B is performed with local incision types in the future of alternative embodiments of the invention, showing the mutual arrangement of the turbine and the input part of the connecting pipes of the brush unit shown in Fig. 1;

Fig. 3 is a cross - section of a turbine brush unit shown in Fig. 1, including a detailed image of the contact areas of the turbine blades;

Fig. 4A is a perspective view of the connecting pipe used in the brush unit shown in Fig. 1;

Fig. 4B is a cross - section of part of the connecting pipes, made according to line IV-IV in Fig. 4A; and

Fig. 5 is a partial section view of the brush unit and connecting pipes, made according to line V-V in Fig. 1.

A DETAILED DESCRIPTION of the PREFERRED embodiments

Some embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

In the following description the same reference position in the drawings are used to designate same or similar elements in the various figures of the drawings. The objects defined in the description such as a detailed construction and elements, are described below in order to facilitate a comprehensive understanding of the invention, and they should not be construed as limiting the invention. The present invention can be implemented without the use of some or even most of the elements described below. In addition, well-known functions or constructions are not described in detail since they would have complicated the understanding of the invention because of the unnecessary details.

Fig. 1 is performed with partial spatial the separation of elements, a perspective view of a vacuum cleaner according to one variant of implementation of the present invention.

Brush the node 200 includes a main body 210 of the brush, having an aperture 212 for suction air and the chamber 211 to the turbine, the turbine 220 installed in the chamber 211 to the turbine, brush 240, intended for contact with the surface to be cleaned with a vacuum cleaner, and is made to rotate to draw the dirt and clean the surface from dirt, the connecting member 230, for transmitting the rotating force of the turbine 220 to ensure the rotation of the brushes 240 and the connecting pipe 250 for directions saturated with the dust of the air in a dust collector (not shown)located in the main body 100 of the vacuum cleaner.

The camera 211 for turbine serves to provide support and receive the turbine 220 so that the turbine 220 rotates freely under the action of the air flow generated by the vacuum cleaner.

Many blades 221 are located around the circumference for education turbine 220 so that the intake air flow created by the vacuum through the main body 210 of the brush causes the turbine 220 to rotate. The configuration of the blades 221 will be described in detail below.

As shown in Fig. 2A and 2B, the connecting pipe 250 directs rich dust intake air into the vacuum in the chamber (not shown)located NR the three main body 100 of the vacuum cleaner. Below will be described the configuration of the input part 251 of the connecting pipe formed in the connecting pipe 250, alternatives implementation.

When the turbine 220 is driven under the action of suction air flow generated by the vacuum cleaner, the connecting member 230 transmits a rotational force of the turbine 220 the brush 240. The connecting member 230 preferably is a belt; however, this should not be construed as limiting. To a person skilled in the art obvious that various alternative designs to ensure rotation functions, such as gears.

Brush 240 (Fig. 1) is made to rotate by means of an element 241 to create a support for the brush, which is mounted on the main body 210. Turbine 220 is installed rotatably on the wall 213 of the chamber 211 to the turbine through the axis of the turbine 222.

When the air passes through the opening 212 for sucking air and causing rotation of the turbine 220, the rotating force of the turbine 220 is transmitted through the connecting member 230 the brush 240, which is made to rotate about an axis that is installed in the element 241 to create a support for the brush.

Brush 240 is moved over the surface to be vacuuming in tight contact with the surface, and the school is ka 240 shifts the dust and dirt from the surface with the to enable the vacuum cleaner is easier to clean the surface from dirt. The dirt removed from the surface, going through the hole 212 for suction of air and passes through the connecting pipe 250 in a dust collector (not shown)located in the main body 100 of the vacuum cleaner.

Fig. 2A and Fig. 2B are performed with local incision views in perspective, showing the alternatives relative position of the turbine and the input part of the connecting pipes of the brush unit shown in Fig. 1. Turbine 220 is installed in the chamber 211 to the turbine so that it overlaps a portion of the input portion 251 of the connecting pipes, providing the message to a fluid environment with the main body 210.

Turbine 220 may be located so that it will be shifted sideways to one side with respect to the input part 251 of the connecting pipes and will block a portion of the input portion 251 of the connecting pipes.

More precisely, if we assume that the input portion 251 of the connecting pipe has a width a, the turbine 220 offset set it sideways to one side of the input portion 251 of the connecting pipe, leaving a free zone with a width in the chamber 211 to the turbine. The input portion 251 of the connecting pipes having a width And, alternatively, can be made with the possibility of installation of the turbine 220 cents the material in the front part 251 of the connecting pipes in the chamber 211 to the turbine, when this turbine 220 is removed at the same distance from both sides of the entrance portion 251 of the connecting pipes, as shown in Fig. 2B.

The ratio between the width D of the turbine 220 and width And the input part 251 of the connecting pipes may be essentially 1:2, whereas the provision of passage full of dust air through the inlet portion 251 of the connecting pipes and the execution of the blades 221 with the proper dimensions for the corresponding perception of the suction force from a vacuum cleaner.

Under the above construction, the passage through which saturated with dust, the air is wide enough, so filled with dust, the air will be sucked smoothly, and the rotation of the turbine will not have a negative impact toothpicks, wooden chopsticks or other interfering objects captured by the turbine.

Fig. 3 is a cross-section of the turbine shown in the brush unit of Fig. 1. Many blades 221 are located around the circumference for education turbine 220. The thickness of each blade 221 in the transverse direction is changed in predetermined uniform manner when measuring it from the Central portion to the circumference of the outer diameter of the turbine 220.

More precisely, the part near the center of the turbine 220 has a thickness that is, If "move" on the blades 221 outward to the circumference of the outer diameter is tra turbine 220, it can be seen that the thickness of each blade 221 is reduced to the thickness of F, and thus the blades 221 are radially outward from the center to the circumference of the outer diameter of the turbine 220.

The end G of the scapula scroogle, as shown at point G', to effectively reduce the resistance of the saturated dust of the air.

Because the blade has the above described structure, filled with dust, the air flows smoothly along spaced in the radial direction and the curved surfaces of the first blades 221 essentially in the direction of arrow H, and the air is directed away from the blades 221 the rounded end of G', so that the impact force is saturated with dust air effectively transmitted to the ends of the blades 221, and therefore, the rotating force of the turbine 220 is additionally increased.

That is, due to the fact that turbine overlaps a portion of the input part (not shown) connecting pipes, rather than the entire input portion of the connecting pipe, the rotating force of the turbine can be reduced. However, reduced torque force can be compensated by the above-described design of the turbine, mainly due spaced in the radial direction and curved blades.

In addition, if the above construction is used for the turbine, the rotating power brush (not shown)driven in rotation by the driving force of the turbine 220, t is the train increases, so that the brush may have a greater influence on the dirt and push the dirt on the surface to be cleaned by vacuum cleaning. Accordingly, it becomes easier to remove dirt from the surface.

In the result, the user can more easily clean the surface to be cleaned with a vacuum cleaner, so that the cleaning efficiency is increased, and foreign particles such as dust, pass through radially curved surface G of the blades 221 in the direction of the arrow H, so that foreign particles are simply absorbed into the vacuum cleaner and does not stick to the blade 221.

Fig. 4A is a perspective view of the connecting pipe, ensure the connection of the brush Assembly shown in Fig. 1, to the extension pipe of the vacuum cleaner, and Fig. 4B is carried out along the line IV-IV, the local section of the connecting pipe shown in Fig. 4A.

The input portion 251 of the connecting pipe is limited by the connecting pipe 250, corresponding to the segment Y connecting pipe 250 and forming the connecting part from the section of larger diameter J to the cross section of smaller diameter of the connecting pipe.

The above-described design that was used to perform the input part 251 of the connecting pipes, schematically has the form the fallopian tubes, which may be a preferred implementation of the present invention.

If diametrically part 251 of the connecting pipes is changed from a larger diameter J to a smaller diameter, the area between the cross-section of larger diameter J and a section of smaller diameter To be formed with an inclined surface L, having an annular shape of a truncated cone with a smoothly curved surface.

As described above, when filled with dust, the air coming from the turbine (not shown), passes from a zone of larger diameter J to the zone of smaller diameter, the air flows along the inclined surface L, which reduces the noise that can be caused by intense dust in the air, when it acquires kinetic energy when passing from the zone of larger diameter J to the zone of smaller diameter To the input portion 251 of the connecting pipes.

Fig. 5 is a cross-section of the brush unit, performed approximately on the line V-V in figure 1, after Assembly of the elements shown in the form of figure 1 with a spatial separation of the elements. Foreign particles such as dust removed from the surface to be cleaned by vacuum cleaning using a brush 240, pass in the direction of arrow H through the turbine 220, which is installed in the chamber 211 to the turbine so that the turbine 220 overlaps the portion of the input portion 251 of the connecting pipes. The input portion 251 is made in the connecting pipe 250, which is connected with the main body 210 of the brush and the turbine 220 has many blades 221 passing radially outward to the outer circumferential periphery of Urbina 220, and each vane 221 has a thickness of uniformly changing from the circumference of the inner diameter to the circumference of the outer diameter of the turbine. Preferably particles pass through the connecting pipe 250, the input portion 251 which has the form of a fallopian tube, the diameter gradually changes from a larger diameter J to a smaller diameter, and the area between the cross-section of larger diameter J and a section of smaller diameter To have the inclined surface L, having a smoothly curved surface. After passing through the connecting pipe 250 particles collected in the dust box (not shown) in the main body 100 of the vacuum cleaner (Fig. 1).

As described above, when using the brush unit and vacuum cleaner that uses the brush node according to a variant implementation of the present invention, foreign substances such as dust, don't get stuck in the turbine vacuum cleaner, so that the brush connected to the turbine can be efficiently powered, thereby reducing noise in the invented design input side of the connecting pipes so that you can reduce unpleasant noise, which would otherwise be created when cleaning.

Additional advantages, objectives and features of various embodiments of the invention partly shown in the foregoing description and may partially acheve the cult for the common specialists in the art upon studying the following claims.

1. Brush the node that contains the main body of the brush, having a hole for sucking air and a chamber for the turbine, and Luggage for turbine has a channel for the passage of air; a turbine mounted in the chamber for the turbine; and a connecting pipe, intended to connect the main body of the vacuum cleaner main body brush, and a connecting tube additionally has an input portion of the connecting pipe; turbine installed only within part of the channel for the passage of air and is located in the center of the input side connecting pipe so that the turbine overlaps the Central portion of the input connecting pipe.

2. Brush the node that contains the main body of the brush, having a hole for sucking air and a chamber for the turbine, and Luggage for turbine has a channel for the passage of air; a turbine mounted in the chamber for the turbine; and a connecting pipe, intended to connect the main body of the vacuum cleaner main body brush, and a connecting tube additionally has an input portion of the connecting pipe; turbine installed only within part of the channel for the passage of air, and the turbine contains a variety of blades, each of which has a uniformly varying thickness when measuring it against the circumference of the inner diameter to the circumference to the diameter ports of the outdoor the turbine.

3. Brush the node according to claim 2, in which each vane has a thickness gradually decreasing from the inner circle of the diameter to the circumference of the outer diameter of the turbine.

4. Brush the node that contains the main body brush with hole for suction of air into the chamber for the turbine, and the chamber for the turbine has a channel for the passage of air; a turbine mounted in the chamber for the turbine; and a connecting pipe, intended to connect the main body of the vacuum cleaner main body brush, and a connecting tube additionally has an input portion of the connecting pipe; turbine installed only within part of the channel for the passage of air and the inlet connecting pipe has an additional section with a gradually decreasing diameter and a section with a constant diameter.

5. Brush the node according to claim 4, in which the input portion of the connecting pipes, essentially, in the form of a fallopian tube.

6. A vacuum cleaner that contains a main body of a vacuum cleaner having a dust collector; the main body brush with hole for suction air chamber for the turbine, and Luggage for turbine has a channel for the passage of air; a turbine mounted in the chamber for the turbine; and a connecting pipe that connects the main body of the vacuum cleaner main body brush, and connecting travaileth input portion of the connecting pipe, this turbine is installed only within part of the channel for the passage of air and is located in the center of the input side connecting pipe so that the turbine covers only the Central portion of the input side connecting pipe.



 

Same patents:

FIELD: mechanical engineering.

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EFFECT: increased efficiency in cleaning of surfaces having vast area.

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EFFECT: increased efficiency in cleaning of surfaces and reduced noise level of vacuum cleaner.

8 cl, 9 dwg

FIELD: domestic appliances.

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21 cl, 8 dwg

FIELD: mechanical unit.

SUBSTANCE: brush unit has casing, cover connected with casing upper part so as to form suction channel and turbine chamber, turbine wheel positioned within turbine chamber, and brush drum driven into rotation by rotational force transmitted from turbine wheel. Dividing member is detachably positioned within casing for defining of suction channel and turbine wheel chamber, which are separated from one another. Turbine wheel is driven for rotation by air drawn through air suction opening separated from filth suction opening. Turbine has base and wheel fins protruding from base and radially positioned on its upper surface with the exception of its center.

EFFECT: provision for preventing of turbine wheel from contamination with filth regardless of size and amount of filth, and increased efficiency due to sufficient extent of transmitting of air kinetic energy to turbine.

8 cl, 6 dwg

FIELD: vacuum cleaner for wet cleaning by drawing of contaminated air through brush provided with cloth for removal of dust and contaminants and simultaneously wiping surface to be cleaned by means of brush with wet cloth.

SUBSTANCE: brush has body with air inlet opening and fan mounted within brush body for rotation by drawn air. Rotating shafts at both sides of fan are equipped with first and second screw drives. First and second screw wheels mounted within brush body are designed for cooperation with said drives. On lower end of first and second screw wheels are positioned first and second pin-shaped eccentric cams which are spaced from centers of rotation of screw wheels. First and second panels for wet cloth are separately positioned on body, said panels being provided with elongated cam slots adapted for receiving of at least one of first and second cams, and guiding projection provided at one side of cam slot and inserted into elongated guiding slot extending perpendicular to cam slot within brush body. First and second panels for wet cloth reciprocate between converging position wherein said panels converge in the vicinity of central part of brush body, and diverging position wherein said panels diverge away from converging position.

EFFECT: reduced vibration and noise during operation of vacuum cleaner with brush and provision for controlling operation of brush.

10 cl, 11 dwg

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