EP0489683A1 - Schlauchheber für Flüssigkeiten - Google Patents

Schlauchheber für Flüssigkeiten Download PDF

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Publication number
EP0489683A1
EP0489683A1 EP91810341A EP91810341A EP0489683A1 EP 0489683 A1 EP0489683 A1 EP 0489683A1 EP 91810341 A EP91810341 A EP 91810341A EP 91810341 A EP91810341 A EP 91810341A EP 0489683 A1 EP0489683 A1 EP 0489683A1
Authority
EP
European Patent Office
Prior art keywords
valve
hose
check valve
tube
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91810341A
Other languages
German (de)
English (en)
French (fr)
Inventor
Josef Kasza
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0489683A1 publication Critical patent/EP0489683A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F10/00—Siphons

Definitions

  • the known tube lifters are used to fill liquids from a first vessel located at a higher level into a second vessel located at a lower level. With the tube lifter, the liquid overcomes at least the level of the upper edge of the first vessel.
  • a hose is used which is immersed at one end, hereinafter referred to as the "suction end", in the liquid of the first vessel.
  • the liquid is sucked in, usually with the mouth of the user.
  • the outlet end is then quickly brought over the second vessel, into which the liquid then automatically flows. If the level at which suction takes place is higher than the liquid level of the first vessel, the outlet end must be sealed airtight, for example by hand, until the outlet end is lowered above the second vessel to a level below the upper liquid level .
  • Tube lifters have been created for use in laboratories, etc., which are equipped with a hand or motor-operated pump. The hose is then filled with the pump until the flow is started, whereupon the pump can be switched off. However, this presupposes that the pump is resistant to the liquids to be filled and that it is carefully cleaned every time after use. For these reasons and because the external energy required for pump operation is not available everywhere, such liquid lifters are not too common.
  • the invention has for its object to provide a tube lifter for liquids that works without the use of external energy, but also without the annoying side effects of suction with the mouth and is suitable for everyday use.
  • the tube lifter has a non-return valve on a suction end of the lifter tube that is to be immersed in a liquid.
  • the valve body of the valve body can be brought into the open position both during intermittent downward movements of the valve in the longitudinal direction of the hose and by flowing liquid which flows through the valve in the direction of the lifting hose. Otherwise the valve body remains in the closed position.
  • the suction end of the lifter tube with the check valve is pushed several times in the longitudinal direction of the tube downward, if necessary, below the surface of the liquid to be filled.
  • the other end of the siphon hose is placed over the vessel to be filled and which is lower than the liquid level in the vessel of the liquid to be filled.
  • the liquid level in the siphon hose rises with each stroke until it reaches the apex of the hose, whereupon the liquid flows out downwards due to gravity. As soon as this drainage begins, the dynamic pressure on the valve body at the intake port is maintained, so the valve body remains in the open position due to the flow, so that the flow or the filling process is no longer interrupted.
  • the tube lifter of the invention which is of a very simple design, thus works without external energy and can be reliably started without annoying suction and can be handled safely and cleanly.
  • 1, 2 denotes a first vessel from which a liquid 4 is to be filled into a second vessel 6.
  • a tube lifter 10 according to the invention is used for filling.
  • the second vessel 6 must be lower than the liquid level in the first vessel 4.
  • the liquid in the hose 10 must overcome its highest point above the edge of the vessel 2.
  • the tube lifter is provided with a check valve 12 at its suction end, which is to be immersed in the liquid 4.
  • FIG. 2 A suitable check valve 12 in connection with the lifting hose 10 is shown in FIG. 2 in the left half as a view (partially broken away) and in the right half as a section.
  • the check valve 12 consists of an essentially tubular valve housing 14, which has a nozzle 15 on its outlet side for connecting the suction end 11 of the lifting hose 10 and accommodates a valve body 20 in its interior.
  • the valve body 20 is a ball, for example made of glass.
  • the valve body 20 is drawn as a solid line in the open position and as a dash-dotted line in the closed position. In the closed position, it rests on a valve seat 17 of the valve housing 14 and thus blocks the valve 12. Liquid 4 (FIG. 1) that has entered the hose 10 can then no longer flow back through the valve 12.
  • the valve body 20 is brought into the illustrated open position by a dynamic pressure which is generated in the intake port 16 - which projects axially beyond the valve seat 17 - when the liquid is flowing.
  • the intake manifold 17 is somewhat expanded with respect to the valve seat 17.
  • the valve body is pressed by the dynamic pressure against cams 18 which project inwards on the valve housing, so that there is a gap 19 between the valve housing 14 and the valve body 20.
  • liquid 4 can reach the lifting tube 10 from the first vessel 2 (FIG. 1).
  • three cams 18 which determine the open position of the valve body 20 can preferably be provided as a stop for the valve body.
  • valve body 20 can of course also be made of another material, such as metal or plastic. It can also be shaped as a hollow body, but it should be heavier than the weight of the liquid it displaces, i.e. it should not swim (when the liquid is still).
  • the valve housing 14 can expediently, as shown, be made of a metal tube (e.g. aluminum) by pressing and / or rolling. However, the housing can also be composed of a first, tubular part, which has the connecting piece 15, and a second part, which forms the valve seat and the suction piece (not shown).
  • a metal tube e.g. aluminum
  • the housing can also be composed of a first, tubular part, which has the connecting piece 15, and a second part, which forms the valve seat and the suction piece (not shown).
  • the embodiment according to FIG. 4 is particularly suitable for use with vessels whose bottom is covered with a granular mass which should not be carried away when liquids are removed, for example aquariums with sand.
  • the valve housing 14 ' is provided with a protruding suction nozzle 16' which is considerably expanded compared to the valve seat 17 and thereby forms a storage space 21 upstream of the valve seat.
  • the intake 16 ' is expediently transparent and can e.g. B. consist of plastic. When liquid is withdrawn, the flow speed in the storage space 21 is greatly reduced. This leaves heavier grains, e.g. B. sand, on the ground, while floating parts or lighter particles, such as organic contaminants, are removed with the liquid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP91810341A 1990-12-04 1991-05-03 Schlauchheber für Flüssigkeiten Withdrawn EP0489683A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH381890A CH682098A5 (enrdf_load_stackoverflow) 1990-12-04 1990-12-04
CH3818/90 1990-12-04

Publications (1)

Publication Number Publication Date
EP0489683A1 true EP0489683A1 (de) 1992-06-10

Family

ID=4264127

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810341A Withdrawn EP0489683A1 (de) 1990-12-04 1991-05-03 Schlauchheber für Flüssigkeiten

Country Status (2)

Country Link
EP (1) EP0489683A1 (enrdf_load_stackoverflow)
CH (1) CH682098A5 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307318A1 (de) * 1993-03-09 1994-09-15 Athanassios Karidakis Verfahren und Vorrichtung zur Flüssigkeitsabnahme aus einem Behälter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR678927A (fr) * 1928-11-14 1930-04-07 Anciens Etablissements Grouvel Dispositif pour l'élévation ou la mise en circulation des liquides
CH140969A (de) * 1930-02-10 1930-07-15 C Premezzi Heber mit Ausflussorgan zum Abfüllen von Flaschen etc.
US3771544A (en) * 1973-03-05 1973-11-13 T Horvath Aquarium syphon
US4301826A (en) * 1980-01-07 1981-11-24 Beckerer Frank S Combination siphon and positive action pump
US4414997A (en) * 1980-06-27 1983-11-15 Jacobson Jeff A Siphon
DE9011012U1 (de) * 1990-07-25 1990-09-27 Maier, Rolf, 7312 Kirchheim Flüssigkeitshandpumpe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR678927A (fr) * 1928-11-14 1930-04-07 Anciens Etablissements Grouvel Dispositif pour l'élévation ou la mise en circulation des liquides
CH140969A (de) * 1930-02-10 1930-07-15 C Premezzi Heber mit Ausflussorgan zum Abfüllen von Flaschen etc.
US3771544A (en) * 1973-03-05 1973-11-13 T Horvath Aquarium syphon
US4301826A (en) * 1980-01-07 1981-11-24 Beckerer Frank S Combination siphon and positive action pump
US4414997A (en) * 1980-06-27 1983-11-15 Jacobson Jeff A Siphon
DE9011012U1 (de) * 1990-07-25 1990-09-27 Maier, Rolf, 7312 Kirchheim Flüssigkeitshandpumpe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4307318A1 (de) * 1993-03-09 1994-09-15 Athanassios Karidakis Verfahren und Vorrichtung zur Flüssigkeitsabnahme aus einem Behälter

Also Published As

Publication number Publication date
CH682098A5 (enrdf_load_stackoverflow) 1993-07-15

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Effective date: 19921211