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Plastic hoses for extraction equipment

A technology for plastic hoses and air extraction equipment, which is used in suction hoses, hoses, mechanical equipment, etc., can solve problems such as limited flexibility and achieve the effect of flexibility

Active Publication Date: 2020-10-23
法兰克工业管道有限两合公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the vacuum cleaner hose known from US 1892382A has the disadvantage of limited flexibility

Method used

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  • Plastic hoses for extraction equipment
  • Plastic hoses for extraction equipment
  • Plastic hoses for extraction equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] figure 1 An example of a plastic hose 10 according to the invention is shown, which in this case is part of a vacuum cleaner hose according to the invention, in particular part of an endless hose eg leaving an extrusion device. The endless hose is then divided into individual hose sections having predetermined lengths as required.

[0027] figure 1 The shown vacuum cleaner hose 10 comprises a constant inner diameter Φ 1 A first cylindrical longitudinal section 12, a second cylindrical longitudinal section 14 with a variable inner diameter and a constant inner diameter Φ 2 The third cylindrical longitudinal section 16, wherein the inner diameter Φ of the third longitudinal section 16 2 greater than the inner diameter Φ of the first longitudinal section 12 1 . The inner diameter of the second longitudinal section 14 gradually increases in the extension from the longitudinal section 12 to the longitudinal section 16 , that is, the second longitudinal section 14 is on ...

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Abstract

The invention relates to a plastic hose (10) for air extraction equipment, in particular a plastic hose (10) for a vacuum cleaner. The plastic hose has at least one longitudinal section (14) along its longitudinal extension direction. The plastic hose is soft. The inner diameter of the tube (10) is variable over this longitudinal section, and is characterized in that the plastic hose is formed as an extruded bellows (18) with a radially outer crest (20), a diameter an inwardly oriented corrugation trough (22) and a corresponding lateral section (24) extending between a corrugation crest (20) and a corrugation trough (22), wherein each corrugation trough (24) arranged in the at least one longitudinal section (14) 22) Consists of a substantially planar section (26) facing the interior of the plastic hose (10). Furthermore, the invention relates to the use of a plastic hose (10) according to the invention.

Description

technical field [0001] The invention relates to a plastic hose for an extraction device, in particular a plastic hose for vacuum cleaners, which plastic hose has at least one longitudinal section along its longitudinal extension, the inner diameter of the plastic hose being at the longitudinal section variable. Background technique [0002] US 1892382A discloses a vacuum cleaner hose of this type manufactured according to the coiling method. It was already known in the 1930s that a higher suction capacity can be achieved at the vacuum cleaner nozzle by means of an enlarged vacuum cleaner hose from the vacuum cleaner nozzle to the vacuum cleaner unit, with the electrical power consumption of the vacuum cleaner unit remaining the same , because in this case the flow velocity of the sucked-in air is greater at the vacuum cleaner nozzle than at the vacuum cleaner unit. [0003] However, the vacuum cleaner hose known from US 1892382A has the disadvantage of limited flexibility....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L11/15A47L9/24
CPCA47L9/24F16L11/15F16L11/111
Inventor R·维林格
Owner 法兰克工业管道有限两合公司
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