Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
  • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
  • A47L7/0042—Gaskets; Sealing means
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
  • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
  • A47L7/0023—Recovery tanks
  • A47L7/0028—Security means, e.g. float valves or level switches for preventing overflow
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L7/00—Suction cleaners adapted for additional purposes; Tables with suction openings for cleaning purposes; Containers for cleaning articles by suction; Suction cleaners adapted to cleaning of brushes; Suction cleaners adapted to taking-up liquids
  • A47L7/0004—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners
  • A47L7/0023—Recovery tanks
  • A47L7/0038—Recovery tanks with means for emptying the tanks
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
  • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L9/22—Mountings for motor fan assemblies
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03F—SEWERS; CESSPOOLS
  • E03F5/00—Sewerage structures
  • E03F5/22—Adaptations of pumping plants for lifting sewage
• • 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
  • F04F3/00—Pumps using negative pressure acting directly on the liquid to be pumped
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/2931—Diverse fluid containing pressure systems
  • Y10T137/3109—Liquid filling by evacuating container
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/4673—Plural tanks or compartments with parallel flow
  • Y10T137/469—Sequentially filled and emptied [e.g., holding type]

Definitions

• the invention relates to a liquid suction device for sucking or transporting liquids, in particular liquids containing solids such as sludge or the like.
• a liquid suction device for sucking or transporting liquids, in particular liquids containing solids such as sludge or the like.
• Such a liquid suction device according to the preamble of claim 1 is known from DE 102 40 804 A1. It has a receptacle in which a vacuum is generated via an air suction motor. Due to the negative pressure, the liquid or the sludge is sucked into the receptacle via a suction connection and, after filling the receptacle and switching off the motor, can run out of the receptacle again via a drain and an emptying element, usually in the form of a hose, and to a desired location be directed.
• the invention has for its object to provide an improved liquid suction in this regard.
• a liquid suction device with the features of claim 1.
• the receptacle of the liquid suction device with at least two separate receptacle chambers and providing a control system by means of which alternating filling and emptying of the receptacle chambers with liquid is initiated, the liquid can speed or sludge suction process must be continued continuously, since liquid can always be sucked into one of the chambers while another chamber is emptying and thus creating space for refilling.
• the liquid suction device preferably works with two receiving chambers.
• a separate motor can be assigned to each of the receiving chambers, and the control can simply be designed so that it alternately switches the motors on and off. As a result, the liquid flows out of the chamber, the motor of which has just been switched off, under its own weight, while liquid is sucked into the other receiving chamber by the other, switched on motor.
• only one naturally aspirated motor is provided and the circuit is designed such that the suction side of the motor is alternately connected to the different receiving chambers, so that the receiving chambers are alternately filled and emptied here.
• the naturally aspirated engine can therefore run through and is therefore more efficient. Liquid is sucked into the receiving chamber, with which the suction side of the suction motor is just connected, while no negative pressure is present at the other receiving chamber, so that the liquid located there can run off under its own weight.
• this chamber has been completely or predominantly emptied, the process is reversed and this chamber, which has been emptied first, is connected to the suction side of the suction motor in order to refill accordingly.
• the suction motor can be designed as desired, for example as an air suction device or as a vacuum pump.
• the control can be done electronically, also as a time control. However, it is preferably designed as a mechanical control or circuit, since such a low need for maintenance and low sensitivity to external influences and possible misuse, for example tilting of the vacuum cleaner.
• a liquid suction device is shown schematically, which has two separate receiving chambers 1, 2.
• Each receiving chamber 1, 2 is assigned its own naturally aspirated motor 3, 4.
• a negative pressure can be generated in the chambers 1, 2 via the suction motors 3, 4, so that liquid can be sucked into the receiving chambers 1, 2 via a suction connection (not shown) which opens into the receiving chambers 1, 2 in the upper region.
• the receiving chamber 1 is filled with liquid up to a predetermined height, the naturally aspirated motor 3 switches off.
• a vacuum flap 5 which closes the receiving chamber 1 on the underside opens and the liquid flows off via an outlet 7 and an emptying element (not shown, for example an outlet hose) connected to it.
• a control ensures that the filling with liquid and the emptying of the receiving chambers 1, 2 take place alternately, so that liquid is continuously sucked in and discharged via the outlet 7.
• the control is carried out via floats 9, .10, which are each held in a guide 11, 12 movable in the vertical direction.
• the floats 9, 10 represent at the same time valves on the top with which the receiving chambers 1, 2 can be closed relative to the respective suction side of the motors 3, 4, so that no liquid can be sucked into the motors.
• the position of the floats 9, 10 is queried via signal transmitters, for example reed contacts or the like.
• the signal generator When a float 9, 10 has reached its upper end position, the signal generator sends the message "chamber full" to control electronics which switch off the respective motor 3, 4 and switch on the other motor 4, 3.
• the motors 3, 4 can also be actuated mechanically by the action of the floats 9, 10 via suitably mounted switches. A purely time-controlled electronic switching of the motors 3, 4 is also possible.
• FIGS. 2 to 11 A particularly preferred embodiment of a liquid suction device according to the invention is shown in FIGS. 2 to 11.
• the external view in FIG. 2 shows the housing of the liquid suction device with the receptacle 13 and the cover 14.
• a suction connection 15 extends into the receptacle 13.
• Fig. 3 shows a central section through the liquid suction device.
• This has two receiving chambers 1, 2, in which 3 negative pressure can be generated via air intake openings 17, 18 by means of a single suction motor.
• the naturally aspirated motor 3 continuously sucks in air, while the air intake openings 17, 18 are alternately opened or closed by main valves 19, 20, so that a vacuum is only ever generated in one receiving chamber 1, 2.
• the alternating opening and closing of the main valves 19, 20 is ensured by a coupling of the main valves 19, 20, which is preferred and mechanically designed to be less prone to failure.
• the main valves 19, 20 can be connected in a particularly simple manner via a rocker 21 which is rigidly but pivotably mounted.
• the movement of the main valves 19, 20 is initiated via floats 9, 10 which are held in a flexible manner in guides 11, 12.
• the float 9 in Chamber 1 as shown, is raised to its highest possible position by the sucked-in liquid, so it has closed the main valve 19 and thus opened the main valve 20.
• the receiving chamber 1 is no longer connected to the suction side of the suction motor 3, so that there is no longer a vacuum in it. Due to the weight of the liquid collected in the receiving chamber 1, which is now no longer compensated for by the negative pressure, a negative pressure flap 5 opens, and the liquid can run off via an outlet 7 and a discharge element (not shown), for example a hose, connected to it.
• the emptying of the receiving chambers 1, 2 is further supported in that the receiving chambers 1, 2 are connected to the outlet side or pressure side of the suction motor 3 via secondary valves 23, 24 shown in FIGS. 4 and 5.
• the auxiliary valves 23, 24 are controlled so that each with the main valve 19, 20 closed on the respective on chamber 1, 2 associated auxiliary valve 23, 24 is open.
• the auxiliary valves 23, 24 are preferably also mechanically coupled, preferably also via a rocker 25.
• FIG. 5 also shows that the main valves 19, 20 connect to an elongated suction chamber 27 connected to the suction side of the suction motor 3, while the secondary valves 23, 24 are located in a round pressure chamber 28 surrounding the suction chamber 27, which is connected to the exhaust side of the suction motor 3 is connected.
• the exhaust air of the suction motor 3 does not have to be completely discharged via the secondary valves 23, 24 and the receiving chambers 1, 2, but can also be partially or completely discharged directly to the surroundings of the liquid suction device, depending on the requirements.
• the outlet side of the suction motor 3, 4 is connected to the receiving chambers 1, 2 via the floats 9, 10 and their guides 11, 12.
• the float guides 11, 12 are protected with a net, grille, mesh, fleece or similar filter to protect the floats 9, 10 and the main valves 19, 20 against contamination.
• This filter would normally become clogged with dirt particles, fine algae or the like over time, thereby worsening the efficiency of the liquid suction device.
• the pressure chamber 28 on the side of the auxiliary valve 24 facing away from the exhaust side of the suction motor 3, 4 is connected via a connecting channel 42 to the top of the float 10 and thus to the inside of the float guide 12.
• the other side, not shown, with auxiliary valve 23 and float 9 is designed accordingly.
• FIGS. 6 to 11 show that the main valve 20 of the receiving chamber 2 is open. A negative pressure forms in the receiving chamber 2, as a result of which liquid, symbolized by open arrows, is sucked into the receiving chamber 2 via the suction connection 15 and an open non-return valve 32.
• the float 10 is moved upward with increasing liquid level within its guide 12. As shown, the guide 12 is perforated in the lower region so that liquid can penetrate into the guide 12. In the upper region 12 ', however, the guide 12 is formed closed on the circumference.
• the float 10 has a seal 33 on its upper outer circumference.
• FIG. 9 and 10 show how the receiving chamber 1 fills with liquid simultaneously with the emptying of the receiving chamber 2.
• Fig. 11 the process has reversed again.
• the float 9 has closed the main valve 19 and opened the main valve 20.
• the check valve 31 and the vacuum valve 6 have closed. Liquid flows out of the open vacuum flap 5 via the outlet 7 from the receiving chamber 1.
• liquid is sucked into the receiving chamber 2.
• a common vacuum flap 56 can preferably be provided, which alternately closes the receiving chambers 1 and 2.
• the receiving chambers 1 and 2 each end on the underside in outlet connections 45, 46, which form stops 55 and 66 for the vacuum flap 56 on their peripheral edges.
• the vacuum flap is pivotably attached between these stops 55 and 66. It can preferably be formed in one piece from a single rubber-elastic element, the pivot axis being formed by a region 57 of reduced thickness as shown.
• the vacuum flap 56 closes the receiving chamber 2 and thereby releases the receiving chamber 1 towards the outlet 7, so that liquid is removed there. can flow.
• the vacuum flap 56 pivots into the position shown in FIG. 14, closing the receiving chamber 1 and at the same time releasing the receiving chamber 2 for the drainage of the liquid collected there through the outlet 7.
• the weight of the liquid collected in the receiving chamber 2 and the negative pressure applied in the receiving chamber 1 mutually support each other, so that the pivoting of the vacuum flap 56 takes place very quickly to change the opening and closing.
• the flaps 5, 6 are possibly delayed, no mutual hindrance can occur.
• FIGS. 2 to 14 are extremely low-maintenance, mechanically simple and functionally reliable with continuously high suction power.
• FIG. 15 shows a modified embodiment with likewise only one naturally aspirated engine 3.
• the control from which receiving chamber 1, 2 is just sucking air is realized in the embodiment according to FIG. 12 by a lever linkage with two shift levers 35, 36, which have a switchover flap 37 pivot, whereby the suction side of the suction motor 3 is alternately connected to the receiving chambers 1, 2.
• the main valves are formed by the switching flap 37.
• FIG. 16 and 17 show yet another embodiment of a single-motor liquid suction device according to the invention, in which the control which receiving chamber 1, 2 is currently being filled is formed by the container itself.
• the receptacle 13 is pivotally mounted and preferably, as shown, oscillates about an essentially horizontal axis 38.
• Each receiving chamber 1, 2 of the receiving container 13 in turn has an air intake opening 17, 18, with the pivoting of the receiving container 13 alternately one of the air intake openings 17, 18 is connected to the suction side of the suction motor 3 or is separated therefrom.
• the air intake openings 17, 18 is simplified if they are at the same distance from the pivot axis or pendulum axis 38, in particular if the wall area there of the receptacle 13 is curved in the form of a segment of a circle.
• the air intake openings 17, 18 together with the wall of the receptacle 13 also form main valves as in the embodiment of the preceding figures.
• the mechanical connection or coupling of the main valves in the embodiment of FIGS. 16 and 17 is given by the rigid shape of the container 13 itself.
• the pivoting of the receptacle 13 can be motor, in particular time-controlled.
• the receptacle 13 is preferably subdivided into receptacle chambers 1, 2 in such a way that when one receptacle chamber 1, 2 is increasingly filled with liquid and liquid flows out of the other receptacle chamber 2, 1, a shift in the center of gravity occurs.
• the receptacle 13 is automatically pivoted into a position which the other receptacle 2, 1 releases for filling, while the one receptacle 1, 2 empties.
• the receptacle 13 has, as shown, essentially the shape of a lying cylinder or a sphere and is divided by a partition 40 into two receiving chambers 1, 2 with a substantially semicircular cross section.
• the air intake openings 17, 18 are preferably to be arranged adjacent on both sides of the dividing wall 40 and the outlet openings in the form of vacuum flaps 5, 6 likewise on both sides of the dividing wall 40 at the opposite end. 16, the air intake opening 17 is connected to the suction side of the suction motor 3, whereby liquid is sucked into the receiving chamber 1 via a suction connection, not shown.
• All of the embodiments according to the invention are distinguished by the possibility of continuous liquid suction operation, as a result of which the suction speed is doubled compared to conventional liquid suction devices with the same motor output.
• the liquid suction devices according to the invention are preferably suitable as sludge suction devices for cleaning garden ponds. However, you can e.g. can also be used for the transport of other liquids, even if they contain a lot of solids and / or have a higher viscosity, for example building materials, such as screed compounds, plasters or the like.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• General Engineering & Computer Science (AREA)
• External Artificial Organs (AREA)
• Sorption Type Refrigeration Machines (AREA)
• Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=34966944

Family Applications (1)

Country Status (6)

Families Citing this family (9)

Family Cites Families (11)

• 2004
  • 2004-09-03 DE DE202004013914U patent/DE202004013914U1/de not_active Expired - Lifetime
• 2005
  • 2005-04-14 DE DE200550008374 patent/DE502005008374D1/de active Active
  • 2005-04-14 CA CA 2562459 patent/CA2562459C/fr active Active
  • 2005-04-14 US US10/599,905 patent/US7814926B2/en active Active
  • 2005-04-14 EP EP05739615A patent/EP1737323B1/fr active Active
  • 2005-04-14 AT AT05739615T patent/ATE446041T1/de not_active IP Right Cessation
  • 2005-04-14 WO PCT/EP2005/003965 patent/WO2005099542A1/fr active Application Filing

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events