Vacuum cleaner having an external-air valve for filter cleaning

A technology for external air and vacuum cleaners, which is applied in the direction of cleaning filter devices, valve operation/release devices, valve devices, etc., which can solve the problems that the suction operation of vacuum cleaners is no longer guaranteed, and achieve enhanced cleaning effect and high-efficiency cleaning Effect

Active Publication Date: 2013-02-20
ALFRED KARCHER GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is therefore necessary to clean the at least one filter after some time, because otherwise the suction flow generated by the suction unit is subjected to a gradually increasing pressure loss in the region of the filter, so that efficient suction operation of the vacuum cleaner is not possible. reassured

Method used

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  • Vacuum cleaner having an external-air valve for filter cleaning
  • Vacuum cleaner having an external-air valve for filter cleaning

Examples

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Embodiment Construction

[0035] A vacuum cleaner 10 is shown schematically in the drawing with a two-part housing 12, the lower part 14 of which is configured as a dirt collection container 16 and can be moved by means of rollers 18 and pivoting rollers 20, Furthermore, the upper part 22 of the housing can be pushed onto the lower part 14 and accommodate the suction unit 24 . The dirt collection container 16 includes a suction inlet 26 , to which a conventional suction hose (not shown in the drawing) can be connected. The suction hose can carry a suction nozzle at its free end, which can be guided along the surface to be sucked off, for example the floor. Alternatively, it can be provided that the suction hose is connected to a processing tool, for example a drilling unit or a milling unit, so that dust accumulated during operation of the processing tool can be suctioned off.

[0036] The upper part 22 forms a suction outlet 28 for the dirt collection container 16 . At the suction outlet 22 is held ...

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Abstract

The invention relates to a vacuum cleaner (10), comprising a dirt collection container (16), which has a suction inlet (28) and has a flow connection to a suction unit (24) by means of a filter (30) and an extraction line (32), and comprising an external-air inlet, which opens into the extraction line (32) downstream of the filter (30) and which can be closed by means of an external-air valve (34), wherein a closing element (38) of the external-air valve (34) is retained in a closed position by means of a magnetic retainer (44, 60) and can be moved to a released position against the effect of the magnetic retainer (44, 60). In order to further develop the vacuum cleaner (10) in such a way that the vacuum cleaner enables effective cleaning of the filter (30) by means of a simple design, an opening force can be applied to the closing element (38) by means of an opening device (64) when the closing element is in the closed position.

Description

technical field [0001] The invention relates to a vacuum cleaner with a dirt collection container having a suction inlet in flow communication with a suction unit via at least one filter and a suction line; An external air inlet into the suction line, which can be closed by means of an external air valve, wherein the closing body of the external air valve is held in a closed position for closing the external air inlet by means of a magnet holding device and can be overcome The action of the magnet holder is moved into a release position which releases the external air inlet. Background technique [0002] Dirt and preferably also liquids can be sucked up by means of such a vacuum cleaner in that the dirt collection container is loaded with a low pressure by means of the suction unit, so that a suction flow is formed and dirt and liquids can be absorbed by the suction unit. The inlet is sucked into the dirt collection container. The vacuum cleaner has at least one filter whi...

Claims

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Application Information

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IPC IPC(8): A47L9/20
CPCB01D46/0072A47L9/20B01D46/0067F16K31/084B01D46/74B01D46/70
Inventor 托马斯·策尔雅各布·扬岑米夏埃尔·穆勒克里斯蒂安·施特文约亨·马特萨宾娜·岑格
Owner ALFRED KARCHER GMBH & CO KG
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