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Vacuum cleaner

A vacuum cleaner and container technology, which is applied in the direction of vacuum cleaners, cleaning filter devices, household appliances, etc., to achieve the effect of simple structure and enhanced cleaning

Active Publication Date: 2016-04-13
ALFRED KARCHER GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the user closes the suction line, the negative pressure increases to such an extent that the force load caused by the pressure difference can no longer be fully compensated by the permanent magnet and the closing spring, and thus the cover is reversed against the action of the closing spring to its release position

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0035] The drawing schematically shows a vacuum cleaner 10 with a dirt collection container 12 on which a suction nozzle head 14 is mounted. The dirt collection container 12 has a suction opening 16 to which a suction line, in the exemplary embodiment shown a suction line 18 , can be connected in the usual manner.

[0036] The suction nozzle head 14 seals off the dirt collection container 12 from above and forms a suction outlet 20 on which a filter 22 is held. The filter 22 is connected to a suction line 24 in the nozzle head, via which suction line the dirt collection container 12 is fluidically connected to a suction unit 26 arranged in the nozzle head. The suction unit 26 includes an electric motor 28 and a blower 30 driven by the electric motor.

[0037] The dirt collection container 12 can be loaded with negative pressure by the suction unit 26, thereby being configured with figure 1 The suction flow shown by arrow 32 in the Under the action of the suction air flow 32...

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PUM

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Abstract

The invention relates to a vacuum cleaner (10) having a dirt-collecting container (12), which has a suction inlet (16) and is in flow connection with a suction subassembly (26) via a filter (22) and a suction-extraction line (24), and having an extraneous-air inlet (40), which opens out into the suction-extraction line (24) and can be closed by an extraneous-air valve (44), wherein the extraneous-air valve (44) comprises a closing body (46) which, in a closed position, can be subjected to a retaining force by at least one retaining element (66, 68) and can be moved into a release position counter to the action of the retaining force. In order to develop the vacuum cleaner (10) such that it has improved filter cleaning, it is proposed according to the invention that the at least one retaining element (66, 68), when it is subjected to a certain release force, transfers abruptly from a first, mechanically stable form, in which it subjects the closing body (46) to the retaining force, into a second, mechanically unstable form, in which it releases the closing body (46).

Description

technical field [0001] The invention relates to a vacuum cleaner with a dirt collection container, which has a suction opening and is fluidically connected to a suction unit via a filter and a suction line, and with external air to the suction line Inlet, which can be closed by an external air valve, wherein the external air valve comprises a closing body, which can be loaded with a holding force by at least one holding element in the closed position of closing the external air inlet, and can overcome the force of the holding force The action moves from a closed position to a release position which releases the outside air inlet. Background technique [0002] With the aid of the vacuum cleaner discussed here, dirt and preferably liquids can be sucked from the surface to be cleaned, in particular the floor, into a dirt collection container, which can be negatively pressurized by the suction unit, thereby being configured with a suction unit. airflow. The vacuum cleaner has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A47L5/36A47L9/20
CPCA47L5/365A47L9/20
Inventor 斯特凡·泽弗里德凯·特劳特维恩马蒂亚斯·塔尔迈尔约翰纳斯·格茨
Owner ALFRED KARCHER GMBH & CO KG