Water circulation cleaner

Details Water circulation cleaner Water circulation cleaner

2002-01-11

2004-06-15

Till, Terrence R. (Department: 1744)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S353000

Reexamination Certificate

active

06748622

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a vacuum cleaner and particularly, to a water circulation cleaner capable of removing contaminants on a cleaning object by enabling water cleaning.
2. Description of the Background Art
Generally, a vacuum cleaner is a cleaning instrument for sucking and removing foreign materials existing on cleaning objects by a suction force generated of a fan motor assembly installed in a main body.
Since such vacuum cleaners are composed so that it can suck and remove foreign materials by a suction force, it can remove foreign materials such as dusts and the like existing on the surface or in the vicinity of the cleaning object but it is difficult to remove foreign materials on the cleaning object or contaminants or spots on the cleaning object.
To solve the problem, recently, cleaners having a brush or duster or wet duster in a suction head of a cleaner are developed to remove foreign materials which are attached to the cleaning object and not easily separated or spots formed on the cleaning object.
However, the vacuum cleaners having a brush or duster is limited in completely separating foreign materials abutting the brush or duster on the cleaning object and accordingly cleaning efficiency is insufficient. The above vacuum cleaner also has a disadvantage that the use is inconvenient since the duster must be often shaken and replaced.
Also, such cleaner is limited in flat areas having relatively low contamination, such as floors and bottom of rooms and it is hard to use in an area with much moisture.
SUMMARY OF THE INVENTION
Therefore, the present invention is to solve the problem of the conventional art and provides a water circulation cleaner capable of easily remove foreign materials such as spots and the like as well as dusts existing on a cleaning object by sucking foreign materials on the cleaning object after injecting cleaning water on the cleaning object.
To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein, there is provided a water circulation cleaner, including a main case, a suction head combined to the lower side of the main case, having a suction port to suck foreign materials and fluid existing on a cleaning object surface, an impeller assembly installed at one side of the main case, for generating suction force, a filter means positioned in the suction passage between the suction head and the impeller assembly, for separating foreign materials contained in suction fluid, a cleaning water tank connected to the discharging port of the impeller assembly in the main case, for storing cleaning water inside and an injection nozzle positioned in the suction head, for injecting the cleaning water supplied from the cleaning water tank to the cleaning object surface.
Rollers are installed at the front and rear sides of the lower surface of the suction head to ease moving of the cleaner.
The suction head has either a brush member or duster member to remove foreign materials being abutted to the cleaning object on the lower surface.
The brush member and the duster member are composed to remove foreign materials from the cleaning object.
The suction head has a blade for preventing outflow of the cleaning water injected from the injection nozzle in the outer area of the suction port.
The blade has a structure that it is connected to the lower surface of the suction head in the trapezoid form.
The suction head has either a brush member or duster member to remove foreign materials being abutted to the cleaning object on the lower surface and the suction port is formed at the upper and rear side of the portion where the brush member and the duster are installed. The injection nozzle is positioned between the suction port positioned at the front and the brush member or the duster member.
The blade has an elliptic structure that it is connected to the lower surface of the suction head according to the other embodiment of the present invention.
At this time, the suction port is formed as an oval shape in the internal area of the blade and at least one between the brush member or duster member is installed at the inner side area of the suction port. The pluralities of injection nozzles are formed between the suction port and the brush member or duster member.
The blade has an end blade abutted to the bottom surface formed sloped inward where the suction port is positioned.
The suction pipe for forming a suction passage between the suction head and the filter means is connected and a backward-flow-preventing valve for preventing a backward flow so that the cleaning water does not move backwardly. The suction pipe has an expansion pipe expanded in the direction of the radius in the middle of itself.
The filter means is combined with the impeller assembly outside the main case.
The filter means is composed by the hydro-cyclone dust collection structure according to the other embodiment of the present invention.
The filter means is composed of a dust collection case having a radius narrowed along from the upper area to the lower area to form a cyclone dust collection structure by gyration movement of fluid.
The dust collection case has a protrusion port for sucking the cleaning water containing foreign materials on the upper side surface and an impeller suction tube vertically lengthened from the impeller assembly at the upper central portion
The protrusion port is protruded in the direction of tangent line of the dust collection case from a flat surface and the protrusion port is formed sloped downward in the direction to the inner side of the dust collecting case.
The filter means has a filter member in a filter case and accordingly when cleaning water sucked to the filter case passes the filter member, foreign material is filtered according to the other embodiment of the present invention.
The filter means includes a filter case having a protrusion port on the side surface to suck cleaning water, a cap where an impeller suction pipe of the impeller assembly passes, being combined at the upper portion of the filter case separably and a filter member for filtering foreign materials.
The filter member includes a first filter member positioned at the inner lower portion of the filter case, having a relatively small number of meshes to filter foreign materials with large particles and a second filter member positioned at the side of the impeller suction pipe, having a relatively large number of meshes than the first filtering member to filter foreign materials with small particles.
The impeller assembly includes an impeller housing fixed to the main case, an impeller for generating a force for flowing cleaning water containing foreign materials which passed through the filter means at the lower inner portion of the impeller housing and a driving motor installed at the upper inner portion of the impeller housing, for rotary operating the impeller.
The impeller assembly further includes a sealing means positioned between the impeller and the driving motor, for preventing inflow of the cleaning water to the driving motor.
The cleaning water tank is formed in a cylindrical shape lengthened in the vertical direction, being connected with an inflow tube connected to the impeller assembly and an outflow tube connected to the injection nozzle.
The inflow tube has a pressure drawing means for lowering pressure by being opened when pressure between the exhaust side area of the impeller assembly and the cleaning water tank reaches a certain level.
The pressure drawing tube includes a pressure drawing tube diverged from the inflow tube and connected to the outside of the main case and a pressure valve installed in the pressure drawing tube, being opened when the pressure reaches a certain level.
An open/close valve for opening and closing the tank is installed in the outflow tube to prevent outflow of the cleaning water stored in the cleaning water tank.
A supply tube communicating with the outside of the main case is connected to the cl

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