EP2701568B1 - Liquid aspirator for drawing off and sucking up liquids - Google Patents
Liquid aspirator for drawing off and sucking up liquids Download PDFInfo
- Publication number
- EP2701568B1 EP2701568B1 EP20120724975 EP12724975A EP2701568B1 EP 2701568 B1 EP2701568 B1 EP 2701568B1 EP 20120724975 EP20120724975 EP 20120724975 EP 12724975 A EP12724975 A EP 12724975A EP 2701568 B1 EP2701568 B1 EP 2701568B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- flow
- air
- tank
- suction device
- 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.)
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- 239000007788 liquid Substances 0.000 title claims description 121
- 238000000926 separation method Methods 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 2
- 230000004888 barrier function Effects 0.000 claims 3
- 238000011144 upstream manufacturing Methods 0.000 claims 3
- 239000003570 air Substances 0.000 description 80
- 230000006870 function Effects 0.000 description 14
- 239000000203 mixture Substances 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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- 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
- A47L7/0009—Suction cleaners adapted to take up liquids, e.g. wet or dry vacuum cleaners with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid
-
- 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
- A47L1/00—Cleaning windows
- A47L1/02—Power-driven machines or devices
- A47L1/05—Hand apparatus with built-in electric motors
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4013—Contaminants collecting devices, i.e. hoppers, tanks or the like
- A47L11/4016—Contaminants collecting devices, i.e. hoppers, tanks or the like specially adapted for collecting fluids
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4027—Filtering or separating contaminants or debris
-
- 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
- A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
- A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
- A47L11/4036—Parts or details of the surface treating tools
- A47L11/4044—Vacuuming or pick-up tools; Squeegees
-
- 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
- A47L5/00—Structural features of suction cleaners
- A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
- A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
- A47L5/24—Hand-supported suction cleaners
-
- 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
-
- 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
-
- 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
- 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
- A47L9/02—Nozzles
- A47L9/06—Nozzles with fixed, e.g. adjustably fixed brushes or the like
- A47L9/0606—Nozzles with fixed, e.g. adjustably fixed brushes or the like rigidly anchored brushes, combs, lips or pads
- A47L9/0626—Rigidly anchored lips, e.g. nozzles adapted for picking up liquids
Definitions
- the invention relates to a remplisstiksssaugvorraum for withdrawing and absorbing liquids with a puller formed by at least one Abziehlippe for withdrawing and collecting the liquid before at least a suction mouth, a suction device, a mixed with the liquid mecanicsaugenden air / liquid flow along a flow path of the Suction port is able to suck through a suction channel into a separation chamber, which is arranged in a housing of remplisstechniksssaugvorraum, a, acted upon by a vacuum suction exhaust duct for discharging the air from the separation chamber, a separator disposed in the separation device, which is for separating the liquid from the air deflects the sucked air / liquid flow and with a tank for receiving the separated liquid, wherein the suction device comprises a motor for driving a Saugunterdruck generating suction unit, and the housing a the Abs having cheideraum and the tank forming hollow chamber into which the suction channel opens and in which the separation device is
- Such a liquid suction is from the WO 2010/018342 A2 known.
- the air is separated from the liquid by a baffle located in front of the suction channel.
- the disadvantage of this rear arrangement of the baffle surface is that the liquid / air mixture is initially sucked into the cavity of the device without being separated, and there is the danger that liquid fractions escape together with the air from the exhaust air duct.
- a similar liquid suction device is from the US 4,831,685 A known.
- This device is designed as a water aspirator and has a tank in which a flow deflection is provided, the sucked air / water mixture deflects radially outward, the suction channel like a nozzle in the tank and the sucked mixture of water and air on a lens-like baffle element is deflected, from which it flows at least 90 ° deflected outward.
- the drainage channel also protrudes into the tank and has an opening at the top, through which the run separated from the water can flow out of the tank or is sucked out.
- Another remplisstiksssaugvorraum for removing and absorbing liquids of this kind is from the DE 10 2008 004 964 B and also from the DE 10 2008 004 965 B known.
- the known devices have to avoid the above drawback on a flow channel, which leads from a front Abziehlippe to an air outlet in the rear part of the device. Via a suction mouth, liquid collected by the draw-off lip is sucked together with ambient air into the device, which is separated from the air in a separation chamber and fed to a tank.
- a separation device For separation of liquid and air, a separation device is provided in the deposition chamber, which consists essentially of a profile for deflecting the flow of the water / air mixture. This deflection causes the heavier water to bounce against the profile and drips from there into cache and flows with suitable orientation of the device in a tank.
- the air on the other hand, can follow the vacuum and is sucked around the profile into the exhaust duct.
- the disadvantage of the known devices is that the liquid first accumulates in the latches and only when the device is held in an upright position with upwardly directed Abziehlippe, the latches are emptied by the fact that the liquid flows into the tank.
- a similar device shows the US 2010/0050368 A , however, also has a separate tank which is protected by check valves against emptying in an unfavorable position of the device.
- the object of the invention is therefore to provide a suction device for liquids, which is inexpensive to produce, has the smallest possible volume and with the best possible storage of the separated liquid is able to separate them from the intake air.
- the separation device is formed by an air inlet-side flow deflection in the form of a stator or rotor, and arranged before entering the exhaust duct flow labyrinth as a retaining agent for spray, wherein the air inlet side flow deflection before the intake of the sucked air - / liquid stream is disposed in the tank on the intake passage or in the tank and deflects the sucked air / liquid flow radially outward into the tank.
- the liquid is then deflected directly into the tank.
- the tank and the separation chamber are combined, that is, the intake opens into the tank, which forms the separation space with its central region.
- the intake opens with a free pipe socket in the tank.
- the resulting flow of the liquid / air mixture then impinges on the separator arranged at the outlet.
- This has the form of a baffle plate, which deflects the flow radially outward into the tank.
- the separation device may be stationary or rotating.
- the separation device In the case of a fixed separating device, this may be formed by a disc which is thinner from the inside out, the contour, on which the flow impinges, following a curved outwardly directed flow line. That is, the separation device has the shape of a cone or a valve lifter, for example. Preferably, it deflects the flow as far as possible with a large deflection angle but low resistance in order not to obstruct the air flow and thus to minimize energy consumption, and on the other hand to optimally optimize the separation function through the changes in direction.
- the exhaust duct projects in a preferred embodiment with a pipe socket in the tank. Alternatively, it can also be flush with the tank wall. In all cases, it should be provided with a means that prevents or at least suppresses that water enters the exhaust duct and is expelled with the air flow from the device.
- the means for retaining the water is a flow labyrinth.
- this forms an effective protection against water leakage without requiring special rest spaces for the flow beyond the tank.
- a kind of cap is placed on the projecting into the tank pipe socket, which reverses the air flow twice in its flow direction.
- the cap can be closed at the front and with a wall portion long the exhaust duct forming the pipe socket extend, wherein between the pipe socket and the cap an annular gap or other air passages remain, through which the air can flow substantially parallel to the nozzle axis first forward again until they the front portion of the cap in the interior reached, where then the air flow is in turn reversed in their direction and can enter the pipe socket.
- the annular gap is preferably designed so that, when the device is held horizontally, water which enters the annular gap flows back into the tank again.
- the annular gap in the direction of the end of the pipe socket may be slightly widened in diameter.
- additional means may be provided to direct water out of the nozzle, which has occurred despite all precautions. These can be, for example, small drain holes that return water back to the tank.
- a circumferential annular gap can also be provided in the exhaust air duct. Possible leakage air flows can be accepted, as long as a sufficiently large proportion of air is extracted.
- the separation device can also have a rotor, which then functions as a dynamic part of the separation device.
- the device has a Abziehlippe in the front region and is preferably designed as a one-handed device.
- the housing has a handle with which it is held, making it look like a conventional window wiper For example, it can be guided along a glass pane so that the liquid can be drawn off this glass pane and simultaneously absorbed.
- the suction mouth is provided, which may be formed as a slot die.
- a typical application of the invention is, for example, a window cleaning device with which water can be drawn off and sucked in to clean the window.
- a sponge may be arranged, which can be employed depending on the orientation of the device instead of the Abziehlippe to the window so as to first clean the window wet.
- a liquid supply may be provided, via which a cleaning liquid can be pumped manually or by a motor before the Abziehlippe or sponge or directly into the sponge.
- the Abziehlippe can also be bent or V-shaped, so that the withdrawn liquid is collected in the central region, where then a different shaped, for example, point-acting, suction mouth can suck the liquid.
- This embodiment will be particularly suitable for devices which have a movable Abziehlippe and are provided in particular for the ground or other horizontal surfaces.
- a flow path leads via the suction channel into the hollow chamber formed by the tank, and from there via the exhaust air channel to a rear outlet, from which the air which has been separated from the liquid in the hollow chamber can escape again.
- the suction effect is generated by a rotor which produces (not described here in detail) a negative pressure driving the flow, as is the case with the known liquid suction devices.
- This rotor is driven by a motor, the motor preferably over an accumulator or powered by batteries to ensure location independence.
- An essential feature of the general concept of the invention is the fact that the liquid / air flow is directed directly into the tank and the water is deposited both when entering and exiting the tank.
- a further preferred embodiment of the invention has a front part of the separation device in the form of a moving rotor.
- the motor used to drive the suction pressure generating suction unit preferably also drives the formed in the form of the rotor front part of the separator.
- the drive motor is first connected to the turbine wheel designed, for example, the rotor wheel of the suction unit and offset this in rotation. As in the case of a conventional vacuum cleaner, this results in the negative pressure, so that air is conveyed through the housing through the intake duct, the hollow chamber and the exhaust air duct.
- This suction unit is then connected via a further drive shaft with the front rotor, which acts here as a front part of the separator.
- the rotor For separating the liquid from the aspirated liquid / air flow, the rotor has at least one impact surface on which the flow is directed. Typically, this impact surface will not communicate directly with the flow, but will cause a reversal in the direction of air flow as the flow obstruction, while the heavier fluid particles of the flow will impact the impact surface or be directed in a direction other than air due to their inertia. Thus, the air will essentially follow the vacuum and take the shortest flow path.
- the liquid on the other hand, is not deflected so quickly because of its higher inertial forces and therefore describes a trajectory with larger radii. This leads, on the one hand, to the fact that the two media follow different flow paths, and on the other to the fact that the liquid bounces due to the larger required flow radius against side walls or on the rotor itself. The latter, in turn, causes the liquid to be separated from the air stream and collected in the annular cavity surrounding the suction channel, the deposition chamber and the exhaust channel.
- the rotor wheel may have a substantially larger diameter than the inner diameter of the intake passage. So that the impact surface is hit by the flow, flow guide profiles can be arranged in the intake channel or shortly behind it, which deflect the flow onto the impact surface.
- a Strömungsleitprofil is used, which may be formed, for example, bell-shaped or cone-shaped, wherein the tip is arranged in the intake passage and the rearwardly widening portion deflects the flow to the outside. This flow then meets in the outer Area on the annular impact surface, wherein the liquid components are then accelerated by the rotating rotor wheel and thrown into the outer region of the hollow chamber. From the inner outer wall, they will then drain down, the device is usually held in the operating position so that the Abziehlippe is up and around the exhaust duct, the separated liquid.
- the housing may be formed in two parts, so that the hollow chamber can be removed.
- the hollow chamber is formed as a separate, for example cylindrical, component which can be plugged onto the exhaust air duct or the supply air duct, wherein the parting plane of the housing is in the region of the hollow chamber.
- the housing is provided with a safety switch, which shuts off the engine when opening the housing or prevents switching on the motor by interrupting the power supply.
- the hollow chamber may also be formed by the housing itself, so that the inside of a section of the housing forms the outside of the hollow chamber. In this case, two partitions are provided in the housing, one of which has a passage for the intake passage and a passage for the exhaust air passage.
- the feed channel may be provided, which is pulled out of the hollow chamber with the front housing part of the remaining housing.
- Annular seals can seal off the intake passage so that, while it can be pulled out, on the one hand, with the front housing part, on the other hand, it can also be put together in a sealing manner. If the front housing part removed, then the hollow chamber can be deducted as a hollow cylindrical member of the exhaust duct, which in turn can be sealed by ring seals.
- the above-mentioned embodiment makes it possible to disassemble and clean the housing and usefully also the hollow chamber itself.
- the hollow chamber in turn may be formed in two parts, so that they can be disassembled into two housing halves.
- the separator forming the rotor may also be designed to be removable, so that this can be easily cleaned. If the cavity forming the cylindrical body is formed in two parts, of course, the two parts must also be connected to each other via seals, so that when lying device no liquid can escape from the device.
- the essential feature is namely the fact that the liquid, which is in the liquid / air flow, is thrown outwards or separated from the air flow via the rotor, so that liquid can then accumulate in the cavity serving as a tank, later to be evacuated. Since the sosstechniksssaugvorraum will be designed in most cases as a handheld device, which is used as a window puller in a transverse position or even over the head, it is important that the liquid can not leak through the intake again. For this reason, the suction duct protrudes into the cavity with a pipe socket, so that even in the overhead position, liquid remains around this intake pipe in the tank and does not run out of the suction duct.
- the tank is formed by a region of the hollow chamber in which the suction channel and the exhaust air duct are introduced in each case from above and below, so that due to the neck-like projecting channel ends is ensured in all orientations of the device that the liquid separated from the air flow can not leak again.
- This function can be enhanced by a cross section of the intake duct or of the drainage channel that widens slightly in the direction of the interior of the hollow chamber.
- the cavity forming the tank can be closed by means of a plug, which releases a way to the outside. So here is an emptying channel connected to the cavity through which the device can be emptied.
- the device is simply taken apart as already described, and emptied half of the cavity after its disassembly.
- a third possibility of emptying is that the intake duct or the exhaust duct are slidably mounted in the housing, so that one of the two parts can each pull out until no pipe socket protrudes into the cavity.
- the device can be turned upside down and the suction channel, which can be firmly connected to the Abziehlippe example, be pulled forward. Due to the fact that this eliminates the pipe socket projecting into the cavity, the flow resistance is canceled and the liquid in the cavity can run out.
- Additional valve means can be provided both on the exhaust duct side and on the intake duct side, which, for example, can additionally seal off the exhaust duct or the intake duct as pure flaps if liquid threatens to escape due to an unfavorable rotation of the apparatus.
- one of the aspects of the invention is the fact that in the cavity of the Abziehlippe the suction passage protrudes with its pipe socket, while opposite the exhaust air passage also projects into the cavity. Between the two pipe sockets creates a gap in which the rotor is arranged, which acts here as a separator. The liquid / air flow impinges on this rotor, wherein between the intake passage and the rotor, a gap is provided, which on the one hand is small enough to maintain the suction pressure, and on the other hand is large enough, without large power losses, the liquid / air flow through to promote the device.
- the nozzle of the exhaust air channel projecting into the cavity can have an air inlet opening over its circumference, so that the air can be sucked out of the cavity.
- a further preferred embodiment has a rotor which is permeable in the middle and immediately before that into the cavity projecting nozzle of the exhaust duct is arranged.
- the drive shaft for the rotor extends through the exhaust air duct, so that the rotor and the drive shaft are arranged concentrically to the cylindrical drive channel.
- a flow-guiding profile can be provided in the intake channel in this embodiment, which guides the flow out of the intake channel to the outside.
- the rotor has, surrounding the opening for the entry into the exhaust duct, a pipe socket which projects into the here bell-shaped or cone-shaped flow guide.
- the window cleaning device may also be provided with an on and off function, which either the motor drive of the suction unit completely or down to avoid too long recovery times in the performance.
- the on and off function is designed in one possible embodiment such that a pressure on the Abziehlippe turns on the device or increases the engine power. Decreasing pressure can then cause the power to turn off or reduce.
- a timer may be provided which shuts off or reduces after a certain, predetermined suction time.
- an orientation switch is also possible or in addition, which turns off the suction unit or shuts down when the device is tilted or pivoted from an upright position with Ababhlippe arranged above. Since or even in transverse movements with laterally positioned Abziehlippe a suction effect may be desired, the orientation switch can be designed so that it is activated only when the Abziehlippe points down.
- a delay switch can delay the switch-off function, so that a short swing does not have any influence on the motor function.
- the Abziehlippe can easily be mounted against the force of a return spring or by an elasticity of the component itself pivotally mounted on the housing, the pivotal bearing comprises a button to detect a slight back-to-back pivoting of the Abziehlippe and a switch-on able to transform. Similar to a stand-by circuit, this can be done via a secondary circuit, so that an initial pressure on the Abziehlippe the device activated in total.
- a further embodiment of the invention has a Abziehlippe, which is formed together with the suction mouth as a separate component and inserted into the device, wherein the suction port is connected via a sealing pipe plug connection with the intake passage.
- This embodiment has the advantage that the functional unit, which is formed by the Abziehlippe and the suction mouth, can be fully accepted and can be connected via a hose via the pipe connector with the intake port of the device. This makes it possible to attach this functional unit to a stem or a hose, and so to create a light puller with suction function, while the rest of the device either for example on a strap of worn by the operator or as a floor standing device on the floor.
- the stem is provided with a suction channel or hose, and can be connected to the device on one side and the unit of Abziehlippe and suction mouth on the other side, so that on the suction channel or hose, the water in front of the suction mouth and on can be absorbed.
- only the Abziehlippe can be made removable. This makes it possible to use the Abziehlippe independently of the device when the suction function is not needed.
- the housing in particular on the opposite side of the suction mouth, have a receptacle for a stem.
- a receptacle for a stem is preferably a universal receptacle for stems of household appliances, which are already present in the household anyway.
- the stem which may also be formed as a telescopic handle, are easily attached to the housing. Also in this way, the range of the user can be easily and simply increased.
- the Abziehlippe and optionally also the suction mouth can also be mounted rotatably or pivotally on the housing, which can be done for example via a sealing ball joint, which is arranged in the connection between the housing and the Abziehlippe and the suction mouth having unit.
- This ball joint can be designed so that the intake passage is passed through the joint.
- the suction channel can also be guided laterally past the joint in the form of a tube.
- FIG. 1 a liquid suction device according to the invention is shown.
- the upper area is uncut, the lower area shown cut; wherein for reasons of clarity on the representation of the cut edges of the housing 1 has been omitted.
- the device has in the front region a Abziehlippe 7, which is able to extract liquid from a surface.
- the classic application of this device is the removal of water from a window surface.
- a suction mouth 5 is arranged, which is here designed as a wide nozzle whose width substantially corresponds to the width of the Abziehlippe 7.
- Via a suction channel 4 the liquid / air mixture is sucked into a hollow chamber 2, wherein in the hollow chamber 2, a separation chamber 8 is provided with a separation device 13, which is able to separate the liquid from the air flow.
- the hollow chamber 2 is provided as a central, tank-like component.
- This hollow chamber 2 combines different functions of the sosstechniksssaugvoriques together. First, it is the tank in which deposited liquid can be collected, which has been separated from the liquid / air mixture. On the other hand, the separation chamber 8 is also integrated here, in which the separation of the air from the liquid takes place. Finally, the hollow chamber 2 forms a protection against re-leakage of the deposited liquid.
- These two channels are arranged concentrically to each other and run towards each other, wherein between the ends of the two channels, the separation device is arranged.
- FIG. 2 shows a first embodiment of the invention with a rigid separation device, which here as the air inlet-side flow deflection 13 has a stator and deflects the flow radially outward into the tank.
- the exhaust duct 3 projects into the tank. So that no splashing into the exhaust duct 3, the pipe socket-like exhaust duct 3 is provided as a further part of the separation device with a flow labyrinth 12, which, as can be seen from the air flow schematically indicating arrow, forces a double direction reversal of the flow and thus residual water separates the air that remains in the tank.
- a rotor 6 is disposed in the gap, which remains between the drain passage 3 and intake passage 4.
- This rotor 6 in turn is driven by a drive shaft 9, wherein the drive shaft 9 concentric with the intake manifold 11 of the exhaust duct 3 is arranged.
- the rotor 6 protrudes with impact surfaces laterally beyond the exhaust air duct 3 into the hollow chamber 2.
- the intake duct 4 has a flow guide profile 10, which here has the shape of an internally hollow truncated cone.
- This truncated cone derives the aspirated mixture of water and air in the intake duct 4 to the outside, so that it meets the outer region of the rotor 6, which forms the impact surface here.
- This causes the sucked liquid / air flow in the radial direction and also in the circumferential direction of the rotor 6 is accelerated, wherein the carrier liquid describes a different trajectory than the lighter air.
- FIG. 3 how out FIG. 3 can be seen, are the engine and the suction unit in the rear of the housing 1, in which the power supply is arranged in the form of a battery. This causes the center of gravity of the device to be displaced to the rear so that it can be easily moved in an upright position along a disk or other surface.
- the flow channel extends through the intake passage 4 into the hollow chamber 2.
- FIG. 4 is the area of the rotor 6 within the hollow chamber 2 again shown in an enlarged view. As shown, the rotor 6 protrudes into the flow guide 10. For this purpose, it has an annular pipe socket, which projects from the rotor wheel 6 toward the front in the direction of the intake duct 4.
- the illustrated embodiment of the diesstechniksssamrnelvorraum is just one conceivable way to make use of the basic principle of the invention.
- Essential in this embodiment of the invention is the fact that no separate separation chamber is provided more, and that the liquid / air flow is directed directly to the rotor 6, which exploits the different dynamic inertias of air and liquid due to its rotation to both streams separate from each other.
- the rotor 6 can be driven via the drive shaft 9 through the exhaust air duct 3, it being alternatively also possible, of course, for the rotor 6 to be driven by a separate drive.
- a level sensor may be provided, which may be formed for example by an electrical contact and the engine turns off when a certain liquid level is reached, beyond which it is no longer guaranteed that no liquid through the exhaust duct 3 or the intake 4 can escape.
- the accumulator arranged in the rear region of the device can preferably be detachably connected to the housing 1, so that it can be removed, for example, for recharging and plugged into a socket.
- the housing 1 in the rear area a possibility for attachment of a stem in the form of a Receiving socket 14 have, so that the device can also be used at high altitudes.
- a further advantageous embodiment has as Abziehlippe 7 a peelable rubber lip, which is fixed for example on a projecting into the housing 1 holding rod such that it is arranged in front of the suction mouth 5 as shown.
- the support rod can then be designed as a suction tube and be detachably inserted into the housing 1, which has the advantage that the user can remove the Abziehlippe 7 for smaller, difficult jobs without Saugnotwendtechnik and use as a lightweight puller.
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Description
Die Erfindung betrifft eine Flüssigkeitssaugvorrichtung zum Abziehen und Aufsaugen von Flüssigkeiten mit einer, von zumindest einer Abziehlippe gebildeten Abziehvorrichtung zum Abziehen und Sammeln der Flüssigkeit vor wenigstens einen Saugmund, einer Saugvorrichtung, die einen mit der aufzusaugenden Flüssigkeit vermischten Luft-/Flüssigkeitsstrom längs eines Strömungsweges von dem Saugmund durch einen Ansaugkanal in einen Abscheideraum zu saugen vermag, der in einem Gehäuse der Flüssigkeitssaugvorrichtung angeordnet ist, einem, mit einem Saugunterdruck beaufschlagten Abluftkanal zur Ausleitung der Luft aus dem Abscheideraum, einer in dem Abscheideraum angeordneten Abscheidevorrichtung, die zum Abscheiden der Flüssigkeit von der Luft den angesaugten Luft-/Flüssigkeitsstrom umlenkt und mit einem Tank zur Aufnahme der abgeschiedenen Flüssigkeit, wobei die Saugvorrichtung einen Motor zum Antreiben eines den Saugunterdruck erzeugenden Saugaggregats, und das Gehäuse eine den Abscheideraum und den Tank bildende Hohlkammer aufweist, in die der Ansaugkanal mündet und in der die Abscheidevorrichtung derart angeordnet ist, dass der angesaugte Luft-/Flüssigkeitsstrom in den Tank umgelenkt ist und der Abluftkanal mit dem Tank in Strömungsverbindung steht.The invention relates to a Flüssigkeitsssaugvorrichtung for withdrawing and absorbing liquids with a puller formed by at least one Abziehlippe for withdrawing and collecting the liquid before at least a suction mouth, a suction device, a mixed with the liquid aufzusaugenden air / liquid flow along a flow path of the Suction port is able to suck through a suction channel into a separation chamber, which is arranged in a housing of Flüssigkeitsssaugvorrichtung, a, acted upon by a vacuum suction exhaust duct for discharging the air from the separation chamber, a separator disposed in the separation device, which is for separating the liquid from the air deflects the sucked air / liquid flow and with a tank for receiving the separated liquid, wherein the suction device comprises a motor for driving a Saugunterdruck generating suction unit, and the housing a the Abs having cheideraum and the tank forming hollow chamber into which the suction channel opens and in which the separation device is arranged such that the sucked air / liquid flow is deflected into the tank and the exhaust duct is in flow communication with the tank.
Eine solche Flüssigkeitssaugvorrichtung ist aus der
Eine ähnliche Flüssigkeitssaugvorrichtung ist aus der
Der Nachteil dieser Vorrichtung besteht darin, dass Wasser aus dem Tank heraus in den Abluftkanal laufen kann, wenn die Vorrichtung gedreht wird. Insbesondere dann, wenn mit der Vorrichtung ein Fenster geputzt werden soll, besteht aber die Gefahr bzw. Notwendigkeit, die Vorrichtung, wie es von einem manuellen Fensterabzieher her bekannt ist, mehrfach zu drehen oder auch einmal über Kopf zu betreiben.The disadvantage of this device is that water can run out of the tank into the exhaust duct when the device is rotated. In particular, when a window is to be cleaned with the device, but there is a risk or need to turn the device, as it is known from a manual Fensterabzieher forth, multiple times or even once to operate over head.
Eine weitere Flüssigkeitssaugvorrichtung zum Abziehen und Aufsaugen von Flüssigkeiten dieser Art ist aus der
Zur Trennung von Flüssigkeit und Luft ist in der Abscheidekammer eine Abscheidevorrichtung vorgesehen, die im Wesentlichen aus einem Profil zur Umlenkung der Strömung des Wasser-/Luft Gemisches besteht. Diese Umlenkung führt dazu, dass das schwerere Wasser gegen das Profil prallt und von dort in Zwischenspeicher tropft und bei geeigneter Ausrichtung des Geräts in einen Tank abfließt. Die Luft dagegen kann dem Unterdruck folgen und wird um das Profil herum in den Abluftkanal gesogen.For separation of liquid and air, a separation device is provided in the deposition chamber, which consists essentially of a profile for deflecting the flow of the water / air mixture. This deflection causes the heavier water to bounce against the profile and drips from there into cache and flows with suitable orientation of the device in a tank. The air, on the other hand, can follow the vacuum and is sucked around the profile into the exhaust duct.
Der Nachteil der bekannten Vorrichtungen besteht darin, dass sich die Flüssigkeit zunächst in den Zwischenspeichern sammelt und nur dann, wenn das Gerät in eine aufrechte Position mit nach oben gerichteter Abziehlippe gehalten ist, die Zwischenspeicher dadurch entleert werden, dass die Flüssigkeit in den Tank abfließt.The disadvantage of the known devices is that the liquid first accumulates in the latches and only when the device is held in an upright position with upwardly directed Abziehlippe, the latches are emptied by the fact that the liquid flows into the tank.
Eine ähnliche Vorrichtung zeigt die
Aufgabe der Erfindung ist es daher, eine Saugvorrichtung für Flüssigkeiten zu schaffen, die kostengünstig herstellbar ist, ein möglichst kleines Bauvolumen aufweist und bei möglichst guter Speicherung der abgeschiedenen Flüssigkeit diese von der angesaugten Luft zu trennen vermag.The object of the invention is therefore to provide a suction device for liquids, which is inexpensive to produce, has the smallest possible volume and with the best possible storage of the separated liquid is able to separate them from the intake air.
Diese Aufgabe wird nach der Erfindung dadurch gelöst, dass die Abscheidevorrichtung von einer lufteintrittsseitigen Strömungsumlenkung in Form eines Stators oder Rotors, und einem vor dem Eintritt in den Abluftkanal angeordneten Strömungslabyrinth als Rückhaltemittel für Spritzwasser gebildet ist, wobei die lufteintrittsseitige Strömungsumlenkung vor dem Eintritt des angesaugten Luft-/Flüssigkeitsstroms in den Tank am Ansaugkanal oder im Tank angeordnet ist und den angesaugten Luft-/Flüssigkeitsstrom radial nach außen in den Tank umlenkt. Erfindungsgemäß wird nun die Flüssigkeit unmittelbar in den Tank umgelenkt. Hierzu sind der Tank und der Abscheideraum miteinander kombiniert, das heißt der Ansaugkanal mündet in den Tank, der mit seinem mittleren Bereich den Abscheideraum bildet.This object is achieved according to the invention in that the separation device is formed by an air inlet-side flow deflection in the form of a stator or rotor, and arranged before entering the exhaust duct flow labyrinth as a retaining agent for spray, wherein the air inlet side flow deflection before the intake of the sucked air - / liquid stream is disposed in the tank on the intake passage or in the tank and deflects the sucked air / liquid flow radially outward into the tank. According to the invention, the liquid is then deflected directly into the tank. For this purpose, the tank and the separation chamber are combined, that is, the intake opens into the tank, which forms the separation space with its central region.
Bei einer bevorzugten Ausgestaltung mündet der Ansaugkanal mit einem freien Rohrstutzen in den Tank. Die hieraus austretende Strömung des Flüssigkeits-/Luftgemischs trifft dann auf die am Austritt angeordnete Abscheidevorrichtung. Diese weist die Form eines Prallblechs auf, das die Strömung radial nach außen in den Tank umlenkt. Die Abscheidevorrichtung kann feststehend oder rotierend ausgebildet sein.In a preferred embodiment of the intake opens with a free pipe socket in the tank. The resulting flow of the liquid / air mixture then impinges on the separator arranged at the outlet. This has the form of a baffle plate, which deflects the flow radially outward into the tank. The separation device may be stationary or rotating.
Im Falle einer feststehenden Abscheidevorrichtung kann diese von einer Scheibe gebildet sein, die von innen nach außen dünner wird, wobei die Kontur, auf die die Strömung prallt, einer gekrümmt nach außen gerichteten Strömungslinie folgt. Das heißt, die Abscheidevorrichtung weist zum Beispiel die Form eines Kegels oder eines Ventilstößels auf. Bevorzugt lenkt er die Strömung möglichst mit großem Umlenkwinkel aber geringem Widerstand um, um einerseits die Luftströmung nicht zu behindern und damit den Energieverbrauch gering zu hälten, und andererseits die Abscheidefunktion durch die Richtungsänderungen möglichst zu optimieren.In the case of a fixed separating device, this may be formed by a disc which is thinner from the inside out, the contour, on which the flow impinges, following a curved outwardly directed flow line. That is, the separation device has the shape of a cone or a valve lifter, for example. Preferably, it deflects the flow as far as possible with a large deflection angle but low resistance in order not to obstruct the air flow and thus to minimize energy consumption, and on the other hand to optimally optimize the separation function through the changes in direction.
Auch der Abluftkanal ragt bei einer bevorzugten Ausgestaltung mit einem Rohrstutzen in den Tank. Alternativ kann er auch bündig mit der Tankwandung abschließen. In allen Fällen sollte er mit einem Mittel versehen sein, das verhindert oder zumindest unterdrückt, dass Wasser in den Abluftkanal gelangt und mit dem Luftstrom aus dem Gerät ausgestoßen wird.Also, the exhaust duct projects in a preferred embodiment with a pipe socket in the tank. Alternatively, it can also be flush with the tank wall. In all cases, it should be provided with a means that prevents or at least suppresses that water enters the exhaust duct and is expelled with the air flow from the device.
Bevorzugt ist das Mittel zum Zurückhalten des Wassers ein Strömungslabyrinth. Dieses bildet als Teil der Abscheidevorrichtung einen effektiven Schutz vor einem Wasseraustritt, ohne dass über den Tank hinaus besondere Ruheräume für die Strömung notwendig werden. Hierzu wird zum Beispiel auf den in den Tank ragenden Rohrstutzen eine Art Kappe aufgesetzt, die den Luftstrom zweimal in seiner Strömungsrichtung umkehrt. Hierzu kann die Kappe vorne geschlossen sein und sich mit einem Wandbereich längst des den Abluftkanal bildenden Rohrstutzens erstrecken, wobei zwischen dem Rohrstutzen und der Kappe ein Ringspalt oder sonstige Luftdurchlässe verbleiben, durch die die Luft im Wesentlichen parallel zur Stutzenachse zunächst wieder nach vorne strömen kann, bis sie den vorderen Bereich der Kappe in deren Inneren erreicht, wobei dort dann die Luftströmung in ihrer Richtung wiederum umgekehrt wird und in den Rohrstutzen eintreten kann.Preferably, the means for retaining the water is a flow labyrinth. As part of the separation device, this forms an effective protection against water leakage without requiring special rest spaces for the flow beyond the tank. For this purpose, for example, a kind of cap is placed on the projecting into the tank pipe socket, which reverses the air flow twice in its flow direction. For this purpose, the cap can be closed at the front and with a wall portion long the exhaust duct forming the pipe socket extend, wherein between the pipe socket and the cap an annular gap or other air passages remain, through which the air can flow substantially parallel to the nozzle axis first forward again until they the front portion of the cap in the interior reached, where then the air flow is in turn reversed in their direction and can enter the pipe socket.
Der Ringspalt ist bevorzugt so ausgebildet, dass bei waagerecht gehaltenem Gerät Wasser, das in den Ringspalt eintritt, wieder in den Tank zurückläuft. Hierzu kann zum Beispiel der Ringspalt in Richtung des Endes des Rohrstutzens im Durchmesser leicht erweitert ausgebildet sein. Auch im Rohrstutzen können zusätzliche Mittel vorgesehen sein, um Wasser aus dem Stutzen heraus zu leiten, das trotz aller Vorkehrungen eingetreten ist. Dies können zum Beispiel kleine Ablauflöcher sein, die Wasser wieder in den Tank zurück leiten. Auch ein umlaufender Ringspalt kann im Abluftkanal vorgesehen sein. Eventuelle Leckage-Luftströmungen können dabei in Kauf genommen werden, solange ein ausreichend großer Anteil an Luft abgesaugt wird.The annular gap is preferably designed so that, when the device is held horizontally, water which enters the annular gap flows back into the tank again. For this purpose, for example, the annular gap in the direction of the end of the pipe socket may be slightly widened in diameter. Also in the pipe socket additional means may be provided to direct water out of the nozzle, which has occurred despite all precautions. These can be, for example, small drain holes that return water back to the tank. A circumferential annular gap can also be provided in the exhaust air duct. Possible leakage air flows can be accepted, as long as a sufficiently large proportion of air is extracted.
Durch die erfindungsgemäße Ausgestaltung der Flüssigkeitssaugvorrichtung wird das Flüssigkeits-/Luftgemisch von dem Saugmund über den Ansaugkanal angesogen und durch die Formgebung des Ansaugkanals, gegebenenfalls durch die Hilfe eines weiteren Strömungsleitprofils, auf die Bereiche der Abscheidevorrichtung gelenkt. Alternativ zur stehenden Prallplatte kann die Abscheidevorrichtung auch einen Rotor aufweisen, der dann als dynamischer Teil der Abscheidevorrichtung fungiert.As a result of the configuration of the liquid suction device according to the invention, the liquid / air mixture is sucked in from the suction mouth via the suction channel and directed onto the regions of the separating device by the shaping of the suction channel, if necessary by the aid of a further flow guidance profile. As an alternative to the standing baffle plate, the separation device can also have a rotor, which then functions as a dynamic part of the separation device.
Wie auch bei den bekannten Flüssigkeitssaugvorrichtungen weist die Vorrichtung im vorderen Bereich eine Abziehlippe auf und ist bevorzugt als Einhandgerät ausgebildet. Hierzu weist das Gehäuse einen Griff auf, mit dem es gehalten ist, so dass es wie ein herkömmlicher Fensterwischer zum Beispiel an einer Glasscheibe entlang geführt werden kann, damit so die Flüssigkeit von dieser Glasscheibe abgezogen und gleichzeitig aufgesaugt werden kann.As with the known liquid suction devices, the device has a Abziehlippe in the front region and is preferably designed as a one-handed device. For this purpose, the housing has a handle with which it is held, making it look like a conventional window wiper For example, it can be guided along a glass pane so that the liquid can be drawn off this glass pane and simultaneously absorbed.
Hinter der Abziehlippe, in dem Bereich, in dem sich die Flüssigkeit sammelt, ist der Saugmund vorgesehen, der als Breitschlitzdüse ausgebildet sein kann. Eine typische Anwendung der Erfindung ist beispielsweise ein Fensterputzgerät, mit dem Wasser zur Reinigung des Fensters abgezogen und eingesaugt werden kann. Hierzu kann neben der Sauglippe auch ein Schwamm angeordnet sein, der je nach Orientierung des Geräts anstelle der Abziehlippe an das Fenster angestellt werden kann, um so das Fenster zunächst nass zu reinigen. Hier kann zusätzlich auch eine Flüssigkeitszufuhr vorgesehen sein, über die manuell oder motorisch eine Reinigungsflüssigkeit vor die Abziehlippe oder den Schwamm oder auch direkt in den Schwamm gepumpt werden kann.Behind the Abziehlippe, in the area in which collects the liquid, the suction mouth is provided, which may be formed as a slot die. A typical application of the invention is, for example, a window cleaning device with which water can be drawn off and sucked in to clean the window. For this purpose, in addition to the suction lip and a sponge may be arranged, which can be employed depending on the orientation of the device instead of the Abziehlippe to the window so as to first clean the window wet. Here, in addition, a liquid supply may be provided, via which a cleaning liquid can be pumped manually or by a motor before the Abziehlippe or sponge or directly into the sponge.
Bei einer alternativen Ausgestaltung der Erfindung kann die Abziehlippe auch gebogen oder V-förmig ausgebildet sein, so dass die abgezogene Flüssigkeit im mittleren Bereich gesammelt wird, wo dann ein anders geformter, beispielsweise punktuell wirkender, Saugmund die Flüssigkeit einsaugen kann. Diese Ausgestaltung wird sich insbesondere bei Geräten anbieten, die eine bewegliche Abziehlippe aufweisen und insbesondere für den Boden oder sonstige horizontale Flächen vorgesehen sind.In an alternative embodiment of the invention, the Abziehlippe can also be bent or V-shaped, so that the withdrawn liquid is collected in the central region, where then a different shaped, for example, point-acting, suction mouth can suck the liquid. This embodiment will be particularly suitable for devices which have a movable Abziehlippe and are provided in particular for the ground or other horizontal surfaces.
Von dem Saugmund führt ein Strömungsweg über den Ansaugkanal in die von dem Tank gebildete Hohlkammer, und von dort über den Abluftkanal zu einem hinteren Auslass, aus dem die Luft, die in der Hohlkammer von der Flüssigkeit abgeschieden wurde, wieder austreten kann. Die Saugwirkung wird durch einen Rotor erzeugt, der (hier nicht näher beschrieben) einen die Strömung treibenden Unterdruck herstellt, so wie dies auch bei den bekannten Flüssigkeitssaugvorrichtungen der Fall ist. Dieser Rotor ist motorisch angetrieben, wobei der Motor bevorzugt über einen Akkumulator oder über Batterien gespeist wird, um eine Ortsunabhängigkeit zu gewährleisten.From the suction mouth, a flow path leads via the suction channel into the hollow chamber formed by the tank, and from there via the exhaust air channel to a rear outlet, from which the air which has been separated from the liquid in the hollow chamber can escape again. The suction effect is generated by a rotor which produces (not described here in detail) a negative pressure driving the flow, as is the case with the known liquid suction devices. This rotor is driven by a motor, the motor preferably over an accumulator or powered by batteries to ensure location independence.
Wesentliches Merkmal des generellen Erfindungsgedankens ist die Tatsache, dass der Flüssigkeits-/Luftstrom unmittelbar in den Tank gelenkt wird und sowohl beim Eintritt als auch beim Austritt aus dem Tank das Wasser abgeschieden wird. Durch diese Trennung der Abscheidemittel in einen vorderen Teil der Abscheidevorrichtung und einen hinteren Spritzschutz als hinteren Teil der Abscheidevorrichtung kann das Wasser effektiv von der Luft separiert werden, ohne dass platzaufwändige Zwischenspeicher notwendig werden. Stattdessen kann der zur Verfügung stehende Raum unmittelbar für das Tankvolumen genutzt werden.An essential feature of the general concept of the invention is the fact that the liquid / air flow is directed directly into the tank and the water is deposited both when entering and exiting the tank. As a result of this separation of the separating means into a front part of the separating device and a rear splash guard as the rear part of the separating device, the water can be effectively separated from the air without the need for space-consuming temporary storage. Instead, the available space can be used directly for the tank volume.
Eine weitere bevorzugte Ausgestaltung der Erfindung weist einen vorderen Teil der Abscheidevorrichtung in Form eines bewegten Rotors auf. Hier treibt der zum Antrieb des den Saugdruck erzeugenden Saugaggregates verwendete Motor bevorzugt auch den in Form des Rotors ausgebildeten vorderen Teil der Abscheidevorrichtung an. Hierzu ist der Antriebsmotor zunächst mit dem zum Beispiel turbinenartig ausgebildeten Rotorrad des Saugaggregates verbunden und versetzt dieses in Drehung. Wie bei einem herkömmlichen Staubsauger entsteht hierdurch der Unterdruck, so dass Luft durch den Ansaugkanal, die Hohlkammer und den Abluftkanal durch das Gehäuse gefördert wird. Dieses Saugaggregat ist dann über eine weitere Antriebswelle mit dem vorderen Rotor, der hier als vorderer Teil der Abscheidevorrichtung fungiert, verbunden.A further preferred embodiment of the invention has a front part of the separation device in the form of a moving rotor. Here, the motor used to drive the suction pressure generating suction unit preferably also drives the formed in the form of the rotor front part of the separator. For this purpose, the drive motor is first connected to the turbine wheel designed, for example, the rotor wheel of the suction unit and offset this in rotation. As in the case of a conventional vacuum cleaner, this results in the negative pressure, so that air is conveyed through the housing through the intake duct, the hollow chamber and the exhaust air duct. This suction unit is then connected via a further drive shaft with the front rotor, which acts here as a front part of the separator.
Wesentliches Merkmal dieses Teilaspekts der Erfindung ist nun die Tatsache, dass das über den Ansaugkanal angesogene Flüssigkeits-/Luftgemisch nicht mehr ausschließlich auf ein abscheidendes Prallblech, sondern auf den in der Hohlkammer des Tanks angeordneten, motorisch bewegten Rotor auftrifft.An essential feature of this aspect of the invention is now the fact that the liquid / air mixture sucked in via the intake duct no longer impinges exclusively on a separating baffle plate but on the motor-driven rotor arranged in the hollow chamber of the tank.
Zum Abscheiden der Flüssigkeit aus dem angesogenen Flüssigkeits-/Luftstrom weist der Rotor zumindest eine Aufprallfläche auf, auf die die Strömung gerichtet ist. Diese Aufprallfläche wird üblicherweise nicht unmittelbar mit der Strömung in Verbindung kommen, sondern als Strömungshindernis eine Richtungsumkehr für die Luftströmung verursachen, während die schwereren Flüssigkeitspartikel der Strömung auf die Aufprallfläche aufprallen bzw. aufgrund ihrer Trägheit in eine andere Richtung als die Luft gelenkt werden. So wird die Luft im Wesentlichen dem Unterdruck folgen und den kürzesten Strömungsweg nehmen.For separating the liquid from the aspirated liquid / air flow, the rotor has at least one impact surface on which the flow is directed. Typically, this impact surface will not communicate directly with the flow, but will cause a reversal in the direction of air flow as the flow obstruction, while the heavier fluid particles of the flow will impact the impact surface or be directed in a direction other than air due to their inertia. Thus, the air will essentially follow the vacuum and take the shortest flow path.
Die Flüssigkeit dagegen wird aufgrund ihrer höheren Trägheitskräfte nicht so schnell umgelenkt und daher eine Bahnkurve mit größeren Radien beschreiben. Dies führt zum einen dazu, dass die beiden Medien unterschiedlichen Strömungspfaden folgen, und zum anderen dazu, dass die Flüssigkeit aufgrund des größeren benötigten Strömungsradius gegen Seitenwände oder auf den Rotor selbst prallt. Letzteres wiederum führt dazu, dass die Flüssigkeit von dem Luftstrom getrennt wird und in dem ringförmigen Hohlraum, der den Ansaugkanal, die Abscheidekammer und den Abluftkanal umgibt, gesammelt wird.The liquid, on the other hand, is not deflected so quickly because of its higher inertial forces and therefore describes a trajectory with larger radii. This leads, on the one hand, to the fact that the two media follow different flow paths, and on the other to the fact that the liquid bounces due to the larger required flow radius against side walls or on the rotor itself. The latter, in turn, causes the liquid to be separated from the air stream and collected in the annular cavity surrounding the suction channel, the deposition chamber and the exhaust channel.
Aufgrund der Tatsache, dass die Aufprallfläche außerhalb des Ansaugkanals liegt, kann das Rotorrad einen wesentlich größeren Durchmesser aufweisen als der Innendurchmesser des Ansaugkanals. Damit die Aufprallfläche von der Strömung getroffen wird, können Strömungsleitprofile im Ansaugkanal oder kurz dahinter angeordnet sein, die die Strömung auf die Aufprallfläche umlenken.Due to the fact that the impact surface is outside the intake passage, the rotor wheel may have a substantially larger diameter than the inner diameter of the intake passage. So that the impact surface is hit by the flow, flow guide profiles can be arranged in the intake channel or shortly behind it, which deflect the flow onto the impact surface.
Bevorzugt wird ein Strömungsleitprofil verwendet, das beispielsweise glockenartig oder kegelförmig ausgebildet sein kann, wobei die Spitze im Ansaugkanal angeordnet ist und der sich nach hinten erweiternde Teil die Strömung nach außen umlenkt. Diese Strömung trifft dann im äußeren Bereich auf die ringförmige Aufprallfläche, wobei die Flüssigkeitsbestandteile dann durch das rotierende Rotorrad beschleunigt und in den äußeren Bereich der Hohlkammer geschleudert werden. Von der inneren Außenwand werden sie dann nach unten ablaufen, wobei das Gerät in Betriebsstellung üblicherweise so gehalten wird, dass die Abziehlippe oben ist und sich rund um den Abluftkanal die abgeschiedene Flüssigkeit befindet.Preferably, a Strömungsleitprofil is used, which may be formed, for example, bell-shaped or cone-shaped, wherein the tip is arranged in the intake passage and the rearwardly widening portion deflects the flow to the outside. This flow then meets in the outer Area on the annular impact surface, wherein the liquid components are then accelerated by the rotating rotor wheel and thrown into the outer region of the hollow chamber. From the inner outer wall, they will then drain down, the device is usually held in the operating position so that the Abziehlippe is up and around the exhaust duct, the separated liquid.
Das Gehäuse kann zweiteilig ausgebildet sein, so dass sich die Hohlkammer herausnehmen lässt. Hierzu kann zum Beispiel vorgesehen sein, dass die Hohlkammer als separates, zum Beispiel zylindrisches, Bauteil ausgebildet ist, das auf den Abluftkanal bzw. den Zuluftkanal aufsteckbar ist, wobei die Trennebene des Gehäuses im Bereich der Hohlkammer liegt. Bevorzugt wird das Gehäuse mit einem Sicherheitsschalter versehen, der bei Öffnen des Gehäuses den Motor abschaltet bzw. ein Einschalten des Motors durch Unterbrechung der Stromzufuhr verhindert. Alternativ kann die Hohlkammer auch von dem Gehäuse selbst gebildet sein, so dass die Innenseite eines Abschnittes des Gehäuses die Außenseite der Hohlkammer bildet. In diesem Fall sind im Gehäuse zwei Trennwände vorgesehen, von denen eine einen Durchlass für den Ansaugkanal und eine einen Durchlass für den Abluftkanal aufweist.The housing may be formed in two parts, so that the hollow chamber can be removed. For this purpose, for example, be provided that the hollow chamber is formed as a separate, for example cylindrical, component which can be plugged onto the exhaust air duct or the supply air duct, wherein the parting plane of the housing is in the region of the hollow chamber. Preferably, the housing is provided with a safety switch, which shuts off the engine when opening the housing or prevents switching on the motor by interrupting the power supply. Alternatively, the hollow chamber may also be formed by the housing itself, so that the inside of a section of the housing forms the outside of the hollow chamber. In this case, two partitions are provided in the housing, one of which has a passage for the intake passage and a passage for the exhaust air passage.
Bei der zweiteiligen Ausführung des Gehäuses kann dieses dann zum Entleeren oder Reinigen geöffnet werden. Am vorderen Gehäuseteil kann zum Beispiel der Zuführkanal vorgesehen sein, der mit dem vorderen Gehäuseteil von dem übrigen Gehäuse aus der Hohlkammer herausgezogen wird. Ringförmige Dichtungen können den Ansaugkanal abdichten, so dass dieser zwar einerseits mit dem vorderen Gehäuseteil herausziehbar, andererseits aber auch dichtend zusammensetzbar ist. Ist der vordere Gehäuseteil abgenommen, kann dann die Hohlkammer als hohlzylindrisches Bauteil von dem Abluftkanal abgezogen werden, der seinerseits wiederum über Ringdichtungen abgedichtet sein kann.In the case of the two-part design of the housing, this can then be opened for emptying or cleaning. At the front housing part, for example, the feed channel may be provided, which is pulled out of the hollow chamber with the front housing part of the remaining housing. Annular seals can seal off the intake passage so that, while it can be pulled out, on the one hand, with the front housing part, on the other hand, it can also be put together in a sealing manner. If the front housing part removed, then the hollow chamber can be deducted as a hollow cylindrical member of the exhaust duct, which in turn can be sealed by ring seals.
Die oben genannte Ausgestaltung ermöglicht es, das Gehäuse und sinnvollerweise auch die Hohlkammer selbst zu zerlegen und zu reinigen. Hierzu kann die Hohlkammer ihrerseits wiederum zweiteilig ausgebildet sein, so dass sie sich in zwei Gehäusehälften zerlegen lässt. Der die Abscheidevorrichtung bildende Rotor kann ebenfalls abnehmbar ausgebildet sein, so dass auch dieser leicht gereinigt werden kann. Sofern der den Hohlraum bildende zylindrische Körper zweiteilig ausgebildet ist, müssen natürlich die beiden Teile auch über Dichtungen miteinander verbunden sein, so dass bei liegendem Gerät keine Flüssigkeit aus dem Gerät austreten kann.The above-mentioned embodiment makes it possible to disassemble and clean the housing and usefully also the hollow chamber itself. For this purpose, the hollow chamber in turn may be formed in two parts, so that they can be disassembled into two housing halves. The separator forming the rotor may also be designed to be removable, so that this can be easily cleaned. If the cavity forming the cylindrical body is formed in two parts, of course, the two parts must also be connected to each other via seals, so that when lying device no liquid can escape from the device.
Wesentliches Merkmal ist nämlich die Tatsache, dass die Flüssigkeit, die sich im Flüssigkeits-/Luftstrom befindet, über den Rotor nach außen geschleudert wird bzw. vom Luftstrom separiert wird, so dass sich Flüssigkeit dann in dem als Tank dienenden Hohlraum ansammeln kann, um später ausgeleert zu werden. Da die Flüssigkeitssaugvorrichtung in den meisten Fällen als Handgerät ausgebildet sein wird, das wie ein Fensterabzieher auch in Querlage oder gar über Kopf verwendet wird, ist es wichtig, dass die Flüssigkeit nicht durch den Ansaugkanal wieder auslaufen kann. Aus diesem Grund ragt der Ansaugkanal mit einem Rohrstutzen in den Hohlraum hinein, so dass selbst bei Überkopfposition Flüssigkeit rund um diesen Ansaugstutzen im Tank verbleibt und nicht aus dem Ansaugkanal herausläuft.The essential feature is namely the fact that the liquid, which is in the liquid / air flow, is thrown outwards or separated from the air flow via the rotor, so that liquid can then accumulate in the cavity serving as a tank, later to be evacuated. Since the Flüssigkeitsssaugvorrichtung will be designed in most cases as a handheld device, which is used as a window puller in a transverse position or even over the head, it is important that the liquid can not leak through the intake again. For this reason, the suction duct protrudes into the cavity with a pipe socket, so that even in the overhead position, liquid remains around this intake pipe in the tank and does not run out of the suction duct.
Gleiches gilt dann, wenn das Gerät in aufrechter Position verwendet wird, also die Ansauglippe oben angeordnet ist. Hier ragt dann der Stutzen des Ablaufkanals in den Hohlraum hinein, so dass sich rund um den Stutzen dieses Ablaufkanals wiederum ein Hohlraum ergibt, in dem Flüssigkeit gesammelt werden kann, ohne dass diese durch den Abluftkanal nach unten ablaufen könnte. Zusammenfassend ist also der Tank von einem Bereich der Hohlkammer gebildet, in den von oben und unten jeweils stutzenartig der Ansaugkanal und der Abluftkanal eingeführt sind, so dass aufgrund der stutzenartig hineinragenden Kanalenden bei allen Orientierungen des Gerätes sichergestellt ist, dass die vom Luftstrom separierte Flüssigkeit nicht wieder auslaufen kann. Diese Funktion kann durch einen sich in Richtung des Inneren der Hohlkammer leicht erweiternden Querschnitt des Ansaugkanals bzw. des Ablaufkanals verstärkt werden.The same applies if the device is used in an upright position, ie the suction lip is arranged at the top. Here then projects the neck of the drainage channel into the cavity, so that around the neck of this drainage channel in turn results in a cavity in which liquid can be collected without this could run down through the exhaust duct. In summary, therefore, the tank is formed by a region of the hollow chamber in which the suction channel and the exhaust air duct are introduced in each case from above and below, so that due to the neck-like projecting channel ends is ensured in all orientations of the device that the liquid separated from the air flow can not leak again. This function can be enhanced by a cross section of the intake duct or of the drainage channel that widens slightly in the direction of the interior of the hollow chamber.
Zum Entleeren des Gerätes bestehen grundsätzlich mehrere Möglichkeiten. Zum einen kann der den Tank bildende Hohlraum über einen Stöpsel verschlossen sein, der einen Weg nach außen freigibt. Hier ist also ein Entleerungskanal mit dem Hohlraum verbunden, über den das Gerät entleert werden kann. Zum anderen kann über die oben bereits beschriebene Reinigungsfunktion durch die Zweiteilung des Gehäuses und auch des Hohlraumes eine Entleerung erfolgen. Hierzu wird einfach das Gerät wie bereits beschrieben auseinandergenommen, und die Hälfte des Hohlraumes nach dessen Zerlegen ausgeleert.There are basically several options for emptying the device. On the one hand, the cavity forming the tank can be closed by means of a plug, which releases a way to the outside. So here is an emptying channel connected to the cavity through which the device can be emptied. On the other hand can be done via the above-described cleaning function by the division of the housing and the cavity emptying. For this purpose, the device is simply taken apart as already described, and emptied half of the cavity after its disassembly.
Eine dritte Möglichkeit der Entleerung besteht darin, dass der Ansaugkanal oder der Abluftkanal verschiebbar im Gehäuse gelagert sind, so dass sich eines der beiden Teile jeweils herausziehen lässt, bis kein Rohrstutzen mehr in den Hohlraum hineinragt. Auf diese Weise kann zum Beispiel das Gerät auf den Kopf gestellt werden und der Ansaugkanal, der zum Beispiel mit der Abziehlippe fest verbunden sein kann, nach vorne herausgezogen werden. Dadurch, dass durch dieses Herausziehen der in den Hohlraum hineinragende Rohrstutzen entfällt, wird der Strömungswiderstand aufgehoben und die im Hohlraum befindliche Flüssigkeit kann herauslaufen.A third possibility of emptying is that the intake duct or the exhaust duct are slidably mounted in the housing, so that one of the two parts can each pull out until no pipe socket protrudes into the cavity. In this way, for example, the device can be turned upside down and the suction channel, which can be firmly connected to the Abziehlippe example, be pulled forward. Due to the fact that this eliminates the pipe socket projecting into the cavity, the flow resistance is canceled and the liquid in the cavity can run out.
Über elektrische Kontakte kann sichergestellt sein, dass das Gerät seine Saugfunktion nur dann aufnehmen kann, wenn sich der Ansaugkanal in der richtigen Position befindet, also in der eingeschobenen Position. Hierzu können einfache Kontakte am Ansaugkanal vorgesehen sein, die den durch den motorischen Antrieb des Saugaggregates herausgezogenen Ansaugkanal unterbrechen. Auf gleiche Weise kann eine Entleerungsfunktion auf Seiten des Abluftkanals realisiert werden, wobei dann die Flüssigkeit durch den herausgezogenen Abluftkanal entleert werden kann.By means of electrical contacts it can be ensured that the device can only absorb its suction function when the intake duct is in the correct position, ie in the inserted position. For this purpose, simple contacts may be provided on the intake channel, which by the motor drive of the suction unit Disconnect the drawn intake duct. In the same way, a discharge function can be realized on the part of the exhaust duct, in which case the liquid can be emptied through the extracted exhaust duct.
Sowohl auf Seiten des Abluftkanals als auch auf Seiten des Ansaugkanals können zusätzliche Ventilmittel vorgesehen sein, die zum Beispiel als reine Klappen den Abluftkanal oder den Ansaugkanal zusätzlich abschotten können, wenn Flüssigkeit aufgrund einer ungünstigen Drehung des Gerätes auszutreten droht.Additional valve means can be provided both on the exhaust duct side and on the intake duct side, which, for example, can additionally seal off the exhaust duct or the intake duct as pure flaps if liquid threatens to escape due to an unfavorable rotation of the apparatus.
Einer der Aspekte der Erfindung ist jedoch die Tatsache, dass in den Hohlraum aus der Abziehlippe der Ansaugkanal mit seinem Rohrstutzen hineinragt, während gegenüberliegend der Abluftkanal ebenfalls in den Hohlraum hineinragt. Zwischen den beiden Rohrstutzen entsteht ein Spalt, in dem der Rotor angeordnet ist, der hier als Abscheidevorrichtung fungiert. Der Flüssigkeits-/Luftstrom trifft auf diesen Rotor, wobei zwischen dem Ansaugkanal und dem Rotor ein Spalt vorgesehen ist, der einerseits klein genug ist, um den Saugdruck aufrechtzuerhalten, und zum anderen groß genug ist, um ohne große Leistungsverluste den Flüssigkeits-/Luftstrom durch das Gerät zu fördern.However, one of the aspects of the invention is the fact that in the cavity of the Abziehlippe the suction passage protrudes with its pipe socket, while opposite the exhaust air passage also projects into the cavity. Between the two pipe sockets creates a gap in which the rotor is arranged, which acts here as a separator. The liquid / air flow impinges on this rotor, wherein between the intake passage and the rotor, a gap is provided, which on the one hand is small enough to maintain the suction pressure, and on the other hand is large enough, without large power losses, the liquid / air flow through to promote the device.
Durch den drehenden Rotor wird die Flüssigkeit, die infolge der Trägheit auf den Rotor auftrifft oder von dem Rotor abgelenkt wird, in den äußeren Bereich des Hohlraumes gefördert, während die wesentlich weniger träge Luft durch den Unterdruck, der infolge des Saugaggregates am Abluftkanal anliegt, aus dem Hohlraum herausgesogen wird. Grundsätzlich kann zum Beispiel der in den Hohlraum hineinragende Stutzen des Abluftkanals über seinen Umfang eine Lufteintrittsöffnung aufweisen, so dass die Luft aus dem Hohlraum abgesaugt werden kann.By the rotating rotor, the liquid which impinges on the rotor due to the inertia or is deflected by the rotor, promoted in the outer region of the cavity, while the much less inertial air by the negative pressure applied by the suction unit at the exhaust duct, from is sucked out of the cavity. In principle, for example, the nozzle of the exhaust air channel projecting into the cavity can have an air inlet opening over its circumference, so that the air can be sucked out of the cavity.
Eine weitere bevorzugte Ausgestaltung weist dagegen einen Rotor auf, der in der Mitte durchlässig ist und unmittelbar vor dem in den Hohlraum ragenden Stutzen des Abluftkanals angeordnet ist. Bei dieser Ausgestaltung verläuft die Antriebswelle für den Rotor durch den Abluftkanal, so dass der Rotor und die Antriebswelle konzentrisch zum zylindrischen Antriebskanal angeordnet sind. Damit die Abscheidefunktion gewährleistet ist, kann bei dieser Ausgestaltung im Ansaugkanal ein Strömungsleitprofil vorgesehen sein, das die Strömung aus dem Ansaugkanal nach außen leitet. Der Rotor weist, die Öffnung für den Eintritt in den Abluftkanal umgebend, einen Rohrstutzen auf, der in das hier glockenartig oder kegelförmig ausgebildete Strömungsleitprofil hineinragt.In contrast, a further preferred embodiment has a rotor which is permeable in the middle and immediately before that into the cavity projecting nozzle of the exhaust duct is arranged. In this embodiment, the drive shaft for the rotor extends through the exhaust air duct, so that the rotor and the drive shaft are arranged concentrically to the cylindrical drive channel. In order for the separation function to be ensured, a flow-guiding profile can be provided in the intake channel in this embodiment, which guides the flow out of the intake channel to the outside. The rotor has, surrounding the opening for the entry into the exhaust duct, a pipe socket which projects into the here bell-shaped or cone-shaped flow guide.
Zwischen diesem Rohrstutzen an dem Rotor und dem Strömungsleitprofil verbleibt ein kleiner Spalt, durch den die Luft nach mehrfacher Richtungsumkehr in den Abluftkanal gelangen kann, während die Flüssigkeit auf die Aufprallfläche des Rotors auftritt oder von einer Luftströmung, die nahe der Aufprallfläche aufgrund der Bewegung des Rotors nach außen gerichtet ist, in den Hohlraum gefördert wird. Letztlich ist es nicht erheblich, ob ein Teil der Luft zusammen mit der Flüssigkeit in den Hohlraum gefördert wird, solange durch die Geometrie des Abluftkanals bzw. des Lufteintritts in den Abluftkanal sichergestellt ist, dass über den Ansaugkanal angesaugte Luft ohne die parallel angesaugte Flüssigkeit durch den Abluftkanal wieder abgesaugt wird.Between this pipe stub on the rotor and the Strömungsleitprofil remains a small gap through which the air can pass into the exhaust duct after multiple reversal of direction, while the liquid occurs on the impact surface of the rotor or an air flow close to the impact surface due to the movement of the rotor directed to the outside, is conveyed into the cavity. Ultimately, it is not significant whether a part of the air is conveyed together with the liquid in the cavity, as long as ensured by the geometry of the exhaust duct or the air inlet into the exhaust duct that aspirated via the intake air without the liquid sucked parallel through the Exhaust duct is sucked off again.
Bevorzugt kann die Fensterreinigungsvorrichtung auch mit einer Ein- und Ausschaltfunktion versehen sein, die entweder den motorischen Antrieb des Saugaggregats vollständig oder zur Vermeidung zu großer Wiederanlaufzeiten in der Leistung herunterfährt. Die Ein- und Ausschaltfunktion ist bei einer möglichen Ausgestaltung derart ausgebildet, dass ein Druck auf die Abziehlippe das Gerät einschaltet oder die Motorleistung erhöht. Nachlassender Druck kann dann das Ausschalten oder die Reduktion der Leistung bewirken.Preferably, the window cleaning device may also be provided with an on and off function, which either the motor drive of the suction unit completely or down to avoid too long recovery times in the performance. The on and off function is designed in one possible embodiment such that a pressure on the Abziehlippe turns on the device or increases the engine power. Decreasing pressure can then cause the power to turn off or reduce.
Alternativ kann auch eine Zeitsteuerung vorgesehen sein, die nach einer gewissen, vorgegebenen Saugdauer abschaltet oder reduziert. Schließlich ist auch oder zusätzlich ein Orientierungsschalter möglich, der das Saugaggregat abschaltet oder herunterfährt, wenn das Gerät von einer aufrechten Position mit oben angeordneter Abziehlippe gekippt oder geschwenkt wird. Da auch oder gerade bei Querbewegungen mit seitlich positionierter Abziehlippe ein Saugeffekt gewünscht sein kann, kann der Orientierungsschalter so ausgebildet sein, dass er erst aktiviert wird, wenn die Abziehlippe nach unten zeigt. Ein Verzögerungsschalter kann die Abschaltfunktion verzögern, so dass ein kurzes Verschwenken noch keinen Einfluss auf die Motorfunktion hat.Alternatively, a timer may be provided which shuts off or reduces after a certain, predetermined suction time. Finally, an orientation switch is also possible or in addition, which turns off the suction unit or shuts down when the device is tilted or pivoted from an upright position with Ababhlippe arranged above. Since or even in transverse movements with laterally positioned Abziehlippe a suction effect may be desired, the orientation switch can be designed so that it is activated only when the Abziehlippe points down. A delay switch can delay the switch-off function, so that a short swing does not have any influence on the motor function.
Zur Umsetzung des Druckschalters kann die Abziehlippe leicht gegen die Kraft einer Rückstellfeder oder durch eine Elastizität des Bauteils selbst schwenkbar am Gehäuse gelagert sein, wobei das schwenkbare Lager einen Taster umfasst, der ein leichtes nach-hinten-Verschwenken der Abziehlippe zu erkennen und in einen Einschaltimpuls umzuwandeln vermag. Ähnlich wie bei einer Stand-by-Schaltung kann dies über eine Sekundär-Schaltung erfolgen, so dass ein initialer Druck auf die Abziehlippe das Gerät insgesamt aktiviert.To implement the pressure switch, the Abziehlippe can easily be mounted against the force of a return spring or by an elasticity of the component itself pivotally mounted on the housing, the pivotal bearing comprises a button to detect a slight back-to-back pivoting of the Abziehlippe and a switch-on able to transform. Similar to a stand-by circuit, this can be done via a secondary circuit, so that an initial pressure on the Abziehlippe the device activated in total.
Eine weitere Ausgestaltung der Erfindung weist eine Abziehlippe auf, die zusammen mit dem Saugmund als separates Bauteil ausgebildet und in das Gerät eingesteckt ist, wobei der Saugmund über eine dichtende Rohrsteckverbindung mit dem Ansaugkanal verbunden ist. Diese Ausgestaltung hat den Vorteil, dass die Funktionseinheit, die von der Abziehlippe und dem Saugmund gebildet wird, vollständig angenommen werden kann und über einen Schlauch über die Rohrsteckverbindung mit dem Ansaugkanal des Geräts verbunden werden kann. Dies ermöglicht es, diese Funktionseinheit an einem Stiel oder auch einem Schlauch zu befestigen, und so einen leichten Abzieher mit Absaugfunktion zu schaffen, während das übrige Gerät entweder zum Beispiel an einem Tragegurt von dem Bediener getragen wird oder als Standgerät auf dem Boden liegt. Hier ist der Stiel mit einem Absaugkanal oder -schlauch versehen, und kann mit dem Gerät an einer Seite und der Einheit aus Abziehlippe und Saugmund an der anderen Seite verbunden werden, so dass über den Absaugkanal oder -schlauch das Wasser vor dem Saugmund an- und aufgesogen werden kann.A further embodiment of the invention has a Abziehlippe, which is formed together with the suction mouth as a separate component and inserted into the device, wherein the suction port is connected via a sealing pipe plug connection with the intake passage. This embodiment has the advantage that the functional unit, which is formed by the Abziehlippe and the suction mouth, can be fully accepted and can be connected via a hose via the pipe connector with the intake port of the device. This makes it possible to attach this functional unit to a stem or a hose, and so to create a light puller with suction function, while the rest of the device either for example on a strap of worn by the operator or as a floor standing device on the floor. Here, the stem is provided with a suction channel or hose, and can be connected to the device on one side and the unit of Abziehlippe and suction mouth on the other side, so that on the suction channel or hose, the water in front of the suction mouth and on can be absorbed.
Alternativ oder auch zusätzlich kann auch nur die Abziehlippe abnehmbar ausgebildet sein. Dies ermöglicht es, die Abziehlippe unabhängig von dem Gerät zu benutzen, wenn die Saugfunktion nicht benötigt wird.Alternatively or additionally, only the Abziehlippe can be made removable. This makes it possible to use the Abziehlippe independently of the device when the suction function is not needed.
Schließlich kann das Gehäuse, insbesondere an der dem Saugmund gegenüber liegenden Rückseite, eine Aufnahme für einen Stiel aufweisen. Dies ist bevorzugt eine Universalaufnahme für Stiele von Haushaltsgeräten, die ohnehin im Haushalt vorhanden sind. In diesem Fall kann der Stiel, der auch als Teleskopstiel ausgebildet sein kann, einfach an dem Gehäuse befestigt werden. Auch auf diese Weise kann die Reichweite des Benutzers leicht und einfach erhöht werden.Finally, the housing, in particular on the opposite side of the suction mouth, have a receptacle for a stem. This is preferably a universal receptacle for stems of household appliances, which are already present in the household anyway. In this case, the stem, which may also be formed as a telescopic handle, are easily attached to the housing. Also in this way, the range of the user can be easily and simply increased.
Die Abziehlippe und optional auch der Saugmund können auch dreh- oder schwenkbar am Gehäuse befestigt sein, wobei dies zum Beispiel über ein dichtendes Kugelgelenk erfolgen kann, das in der Verbindung zwischen dem Gehäuse und der die Abziehlippe und den Saugmund aufweisenden Einheit angeordnet ist. Dieses Kugelgelenk kann so ausgebildet sein, dass der Ansaugkanal durch das Gelenk hindurchgeführt ist. Alternativ kann der Ansaugkanal auch in Schlauchform seitlich an dem Gelenk vorbeigeführt sein.The Abziehlippe and optionally also the suction mouth can also be mounted rotatably or pivotally on the housing, which can be done for example via a sealing ball joint, which is arranged in the connection between the housing and the Abziehlippe and the suction mouth having unit. This ball joint can be designed so that the intake passage is passed through the joint. Alternatively, the suction channel can also be guided laterally past the joint in the form of a tube.
Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Zeichnungen.Further features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings.
In den Zeichnungen zeigt:
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eine erfindungsgemäße Flüssigkeitssaugvorrichtung in einer Draufsicht, teilweise im Schnitt,Figur 1 -
die inFigur 2 dargestellte Flüssigkeitssaugvorrichtung in einer Seitenansicht im Schnitt mit einer ersten Ausgestaltung der Abscheidevorrichtung,Figur 1 -
die inFigur 3 dargestellte Flüssigkeitssaugvorrichtung in einer Seitenansicht im Schnitt mit einer zweiten Ausgestaltung der Abscheidevorrichtung, undFigur 1 -
den Bereich des Rotors der inFigur 4 dargestellten Flüssigkeitssaugvorrichtung in einer vergrößerten Darstellung.Figur 3
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FIG. 1 a liquid suction device according to the invention in a plan view, partly in section, -
FIG. 2 in theFIG. 1 1 in a side view in section with a first embodiment of the separation device, -
FIG. 3 in theFIG. 1 shown liquid suction in a side view in section with a second embodiment of the separator, and -
FIG. 4 the area of the rotor of inFIG. 3 shown liquid suction in an enlarged view.
In
Das Gerät weist im vorderen Bereich eine Abziehlippe 7 auf, die Flüssigkeit von einer Fläche abzuziehen vermag. Der klassische Anwendungsfall dieser Vorrichtung ist das Abziehen von Wasser von einer Fensterfläche. Hinter der Abziehlippe 7 ist ein Saugmund 5 angeordnet, der hier als breite Düse ausgebildet ist, deren Breite im Wesentlichen der Breite der Abziehlippe 7 entspricht. Über einen Ansaugkanal 4 wird das Flüssigkeits-/Luftgemisch in eine Hohlkammer 2 eingesogen, wobei in der Hohlkammer 2 ein Abscheideraum 8 mit einer Abscheidevorrichtung 13 vorgesehen ist, die die Flüssigkeit von dem Luftstrom zu trennen vermag.The device has in the front region a
Die weitere Funktion der Abscheidevorrichtung 13 wird anhand der Schnittansicht in den
In dem Gehäuse 1 ist als zentrales, tankartiges Bauteil die Hohlkammer 2 vorgesehen. Diese Hohlkammer 2 kombiniert verschiedene Funktionen der Flüssigkeitssaugvorrichtung miteinander. Zum einen ist sie der Tank, in dem abgeschiedene Flüssigkeit gesammelt werden kann, die aus dem Flüssigkeits-/Luftgemisch separiert wurde. Zum anderen ist hier auch der Abscheideraum 8 integriert, in dem die Trennung der Luft von der Flüssigkeit stattfindet. Schließlich bildet die Hohlkammer 2 einen Schutz vor dem Wiederauslaufen der abgeschiedenen Flüssigkeit.In the
In die Hohlkammer 2 ragen jeweils mit einem Rohrstutzen ein Abluftkanal 3 sowie der Ansaugkanal 4. Diese beiden Kanäle sind konzentrisch zueinander angeordnet und laufen aufeinander zu, wobei zwischen den Enden der beiden Kanäle die Abscheidevorrichtung angeordnet ist.In the
Im hinteren Bereich des Tanks ragt der Abluftkanal 3 in den Tank hinein. Damit kein Spritzwasser in den Abluftkanal 3 hineingerät, ist der rohrstutzenartig ausgebildete Abluftkanal 3 als weiterer Bestandteil der Abscheidevorrichtung mit einem Strömungslabyrinth 12 versehen, das, wie aus dem die Luftströmung schematisch andeutenden Pfeil ersichtlich ist, eine doppelte Richtungsumkehr der Strömung erzwingt und damit restliches Wasser von der Luft abscheidet, das im Tank zurückbleibt.In the rear of the tank, the
Bei der in
Im Endbereich weist der Ansaugkanal 4 ein Strömungsleitprofil 10 auf, das hier die Form eines innen hohlen Kegelstumpfes aufweist. Dieser Kegelstumpf leitet die angesaugte Mischung aus Wasser und Luft im Ansaugkanal 4 nach außen ab, so dass diese auf den äußeren Bereich des Rotors 6, der hier die Aufprallfläche bildet, trifft. Dies bewirkt, dass der angesaugte Flüssigkeits-/Luftstrom in radialer Richtung und auch in Umfangsrichtung des Rotors 6 beschleunigt wird, wobei die trägere Flüssigkeit eine andere Bahnkurve beschreibt als die leichtere Luft.In the end region, the
Wie aus
Im vorderen Bereich ist die Abziehlippe 7 angeordnet, hinter der der Saugmund 5 vorgesehen ist. Von hier aus verläuft der Strömungskanal durch den Ansaugkanal 4 in die Hohlkammer 2.In the front region of the
In
Zwischen diesem Bereich des Rotors 6 und dem Strömungsleitprofil 10 verbleiben kleine Spalte, so dass die abzusaugende Luft durch eine Labyrinth-Dichtung, den inneren Pfeilen folgend, zunächst an der Außenseite des Strömungsleitprofiles 10 nach außen strömt, anschließend eine enge Kurve nach innen beschreibend in das Innere des Strömungsleitprofiles 10 gesogen wird, und von dort durch das innen hohle Rotorrad 6 durch dessen Ansaugstutzen in den Abluftkanal 3 gesogen wird. Eine derart enge Bahnkurve kann die trägere Flüssigkeit nicht vollziehen, und wird daher den äußeren Pfeilen folgend radial und in Umfangsrichtung des Rotors 6 nach außen gefördert. Dies führt dazu, dass sich die Flüssigkeit in der Hohlkammer 2, insbesondere an der Innenwandung, sammelt, und bei aufrechtem Gerät in den unteren Bereich der Hohlkammer 2 fließt, der dann als Tank dient.Between this region of the
Die dargestellte Ausführungsform der Flüssigkeitssamrnelvorrichtung ist nur eine denkbare Möglichkeit vom erfindungsgemäßen Grundprinzip Gebrauch zu machen. Wesentlich bei dieser Ausgestaltung der Erfindung ist die Tatsache, dass keine separate Abscheidekammer mehr vorgesehen ist, und dass der Flüssigkeits-/Luftstrom unmittelbar auf den Rotor 6 gelenkt wird, der infolge seiner Rotation die unterschiedlichen dynamischen Trägheiten von Luft und Flüssigkeit ausnutzt, um beide Ströme voneinander zu trennen. Ferner kann der Rotor 6 wie dargestellt über die Antriebswelle 9 durch den Abluftkanal 3 angetrieben sein, wobei es alternativ natürlich auch möglich ist, dass der Rotor 6 durch einen separaten Antrieb angetrieben ist.The illustrated embodiment of the Flüssigkeitsssamrnelvorrichtung is just one conceivable way to make use of the basic principle of the invention. Essential in this embodiment of the invention is the fact that no separate separation chamber is provided more, and that the liquid / air flow is directed directly to the
In der Hohlkammer 2 kann ein Füllstandsensor vorgesehen sein, der beispielsweise von einem elektrischen Kontakt gebildet sein kann und den Motor abschaltet, wenn ein bestimmter Flüssigkeitspegel erreicht ist, jenseits dessen es nicht mehr gewährleistet ist, dass keine Flüssigkeit durch den Abluftkanal 3 oder den Ansaugkanal 4 austreten kann. Der im hinteren Bereich der Vorrichtung angeordnete Akkumulator kann bevorzugt abnehmbar mit dem Gehäuse 1 verbunden sein, so dass er zum Beispiel zum Wiederaufladen entnommen und in eine Steckdose eingesteckt werden kann. Ferner kann das Gehäuse 1 im hinteren Bereich eine Befestigungsmöglichkeit für einen Stiel in Form einer Aufnahmebuchse 14 aufweisen, so dass das Gerät auch in größeren Höhen eingesetzt werden kann.In the
Eine weitere vorteilhafte Ausgestaltung weist als Abziehlippe 7 eine abziehbare Gummilippe auf, die beispielsweise an einer in das Gehäuse 1 hineinragenden Haltestange derart befestigt ist, dass sie vor dem Saugmund 5 wie dargestellt angeordnet ist. Die Haltestange kann dann als Saugrohr ausgebildet und lösbar in das Gehäuse 1 eingesteckt werden, was den Vorteil hat, dass der Benutzer die Abziehlippe 7 für kleinere, diffizile Arbeiten ohne Saugnotwendigkeit abnehmen und als leichtes Abziehwerkzeug einsetzen kann.A further advantageous embodiment has as Abziehlippe 7 a peelable rubber lip, which is fixed for example on a projecting into the
- 11
- Gehäusecasing
- 22
- Hohlkammerhollow
- 33
- Abluftkanalexhaust duct
- 44
- Ansaugkanalintake port
- 55
- Saugmundsaugmund
- 66
- Rotorrotor
- 77
- Abziehlippesqueegee
- 88th
- Abscheideraumseparating chamber
- 99
- Antriebswelledrive shaft
- 1010
- Strömungsleitprofilflow guide
- 1111
- Ansaugstutzenintake
- 1212
- Strömungslabyrinth der AbscheidevorrichtungFlow labyrinth of the separator
- 1313
- Lufteintrittsseitige Strömungsumlenkung der AbscheidevorrichtungAir inlet side flow deflection of the separator
- 144144
- Aufnahmebuchse zur Befestigung eines StielsBushing for attaching a stem
Claims (14)
- Liquid suction device for drawing off and sucking up liquids, comprising• a drawing-off device formed by at least one drawing-off lip (7) and intended for drawing off and collecting the liquid upstream of at least one suction mouth (5);• a suction device which is able to suck an air/liquid stream along a flow path from the suction mouth (5) through an intake duct (4) into a separation space (8) which is arranged in a housing (1) of the liquid suction device;• an exhaust air duct (3) subjected to a negative suction pressure and intended for guiding the air out of the separation space (8);• a separation device which is arranged in the separation space (8) and which, in order to separate the liquid from the air, deflects the sucked-in air/liquid stream; and comprising• a tank for receiving the separated liquid;wherein the suction device has a motor for driving a suction unit generating the negative suction pressure, and the housing (1) has a hollow chamber (2) which forms the separation space (8) and the tank and into which the intake duct (4) opens and in which the separation device is arranged in such a way that the sucked-in air/liquid stream is deflected into the tank, and the exhaust air duct (3) is in flow connection with the tank; characterized in that the separation device is formed by an air-inlet-side flow deflector in the form of a stator (13) or rotor (6) and by a flow labyrinth (12), arranged upstream of the inlet into the exhaust air duct (3), as a retaining means for spray water, wherein the air-inlet-side flow deflector (13) is arranged on the intake duct (4) or in the tank upstream of the inlet of the sucked-in air/liquid stream into the tank and deflects the sucked-in air/liquid stream radially outwards into the tank.
- Liquid suction device for drawing off and sucking up liquids according to Claim 1, characterized in that the flow labyrinth (12) is formed by a cap which covers a nozzle-like air inlet of the exhaust air duct (3), wherein the cap projects beyond the exhaust air duct (3), and at least one gap-like, annular-gap-like or duct-like air passage is provided between the cap and the outer wall of the exhaust air duct (3), with the result that the air on the outer wall of the exhaust air duct (3) is sucked between the exhaust air duct (3) and inner side of the cap and then, after direction reversal, through the exhaust air duct (3) out of the tank.
- Liquid suction device for drawing off and sucking up liquids according to Claim 2, characterized in that the exhaust air duct (3) has a radially outwardly projecting, wall-shaped flow barrier extending completely around the exhaust air duct (3), wherein the cap projects beyond the flow barrier while leaving an air inlet for sucking the air out of the tank into the flow labyrinth (12) in such a way that, in every orientation of the liquid suction device, water situated in the tank flows off laterally either on the cap or the flow barrier and is prevented from entering the exhaust air duct (3).
- Liquid suction device for drawing off and sucking up liquids according to one of the two preceding Claims 2 and 3, characterized in that the flow labyrinth (12) is the motor-driven rotor (6) with the rotating cap.
- Liquid suction device for drawing off and sucking up liquids according to Claim 4, characterized in that the motor is connected via a drive shaft (9) to a rotation axle of the rotor (6), wherein the rotor (6) is driven via the motor.
- Liquid suction device for drawing off and sucking up liquids according to Claim 5, characterized in that the rotor (6) is the suction unit generating the negative suction pressure.
- Liquid suction device for drawing off and sucking up liquids according to one of the preceding claims, characterized in that the intake duct (4) and/or the exhaust air duct (3) have a tubular connection piece projecting into the cavity (2).
- Liquid suction device for drawing off and sucking up liquids according to one of the preceding claims, characterized in that a flow guide profile (10) is arranged in the intake duct (4) and guides the air/liquid stream onto the separation device.
- Liquid suction device for drawing off and sucking up liquids according to the preceding Claim 8, characterized in that the flow guide profile (10) is formed in such a way that an annular flow of the air/liquid stream is formed.
- Liquid suction device for drawing off and sucking up liquids according to the preceding Claim 9, characterized in that the flow guide profile (10) is formed in a bell-like manner with a cross section widening in the direction of the rotor (6), wherein the annular flow of the air/liquid stream flows past the outer side of the flow guide profile (10) onto the impact surface, and the rotor (6) projects by way of an intake connection piece (11) into a hollow region, facing it, of the flow guide profile (10), wherein the exhaust air duct (3) is formed and arranged in such a way that the exhaust air flow separated from the liquid flows through an annular gap between the intake connection piece (11) and the inner surface of the flow guide profile (10).
- Liquid suction device according to one of the preceding claims, characterized in that the drawing-off lip (7) is releasably connected to the housing (1) via a plug-in holder which can be releasably connected to the housing (1), wherein, with the drawing-off lip (7) removed, the plug-in holder serves as a handle for using the drawing-off lip (7) as a manual extractor.
- Liquid suction device according to one of the preceding claims, characterized in that the drawing-off lip (7) is mounted movably on the housing (1), wherein the movable mounting comprises a switch which can be placed in an off and an on position by pivoting the drawing-off lip (7), and the motor of the suction unit and of the rotor (6) can be switched on and off via the switch formed by the drawing-off lip (7).
- Liquid suction device according to one of the preceding claims, characterized in that the housing (1) has, in particular on its rear side opposite to the suction mouth (5), a receiving bush (14) for a shaft into which a shaft or a telescopic shaft can be inserted and in which the shaft can be fastened via frictional or positive locking.
- Liquid suction device according to one of the preceding claims, characterized in that the suction mouth (5) is mounted so that it can be rotated relative to the housing (1).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15176753.0A EP2959814B1 (en) | 2011-05-27 | 2012-05-29 | Liquid suction apparatus |
EP14180641.4A EP2820989B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011050697A DE102011050697A1 (en) | 2011-05-27 | 2011-05-27 | Liquid suction device for removing and absorbing liquids |
PCT/EP2012/060067 WO2012163926A1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator for drawing off and sucking up liquids |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14180641.4A Division-Into EP2820989B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator |
EP14180641.4A Division EP2820989B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator |
EP15176753.0A Division EP2959814B1 (en) | 2011-05-27 | 2012-05-29 | Liquid suction apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2701568A1 EP2701568A1 (en) | 2014-03-05 |
EP2701568B1 true EP2701568B1 (en) | 2015-05-20 |
Family
ID=46201617
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20120724975 Active EP2701568B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator for drawing off and sucking up liquids |
EP14180641.4A Active EP2820989B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator |
EP15176753.0A Active EP2959814B1 (en) | 2011-05-27 | 2012-05-29 | Liquid suction apparatus |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14180641.4A Active EP2820989B1 (en) | 2011-05-27 | 2012-05-29 | Liquid aspirator |
EP15176753.0A Active EP2959814B1 (en) | 2011-05-27 | 2012-05-29 | Liquid suction apparatus |
Country Status (7)
Country | Link |
---|---|
US (2) | US9021654B2 (en) |
EP (3) | EP2701568B1 (en) |
CN (2) | CN203815383U (en) |
DE (3) | DE102011050697A1 (en) |
DK (1) | DK2701568T3 (en) |
PL (1) | PL2820989T3 (en) |
WO (1) | WO2012163926A1 (en) |
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2011
- 2011-05-27 DE DE102011050697A patent/DE102011050697A1/en not_active Withdrawn
-
2012
- 2012-05-29 EP EP20120724975 patent/EP2701568B1/en active Active
- 2012-05-29 DK DK12724975.3T patent/DK2701568T3/en active
- 2012-05-29 EP EP14180641.4A patent/EP2820989B1/en active Active
- 2012-05-29 CN CN201290000552.7U patent/CN203815383U/en not_active Expired - Lifetime
- 2012-05-29 DE DE202012012815U patent/DE202012012815U1/en not_active Expired - Lifetime
- 2012-05-29 US US14/122,860 patent/US9021654B2/en active Active
- 2012-05-29 DE DE202012012814U patent/DE202012012814U1/en not_active Expired - Lifetime
- 2012-05-29 WO PCT/EP2012/060067 patent/WO2012163926A1/en active Application Filing
- 2012-05-29 EP EP15176753.0A patent/EP2959814B1/en active Active
- 2012-05-29 PL PL14180641.4T patent/PL2820989T3/en unknown
- 2012-05-29 CN CN201420469156.XU patent/CN204169772U/en not_active Expired - Lifetime
-
2015
- 2015-04-13 US US14/685,182 patent/US9615705B2/en active Active
Also Published As
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DE202012012815U1 (en) | 2013-12-05 |
US20140109340A1 (en) | 2014-04-24 |
DK2701568T3 (en) | 2015-07-13 |
US20150208886A1 (en) | 2015-07-30 |
WO2012163926A1 (en) | 2012-12-06 |
PL2820989T3 (en) | 2016-10-31 |
EP2959814B1 (en) | 2016-09-14 |
US9615705B2 (en) | 2017-04-11 |
CN204169772U (en) | 2015-02-25 |
EP2820989A2 (en) | 2015-01-07 |
EP2959814A1 (en) | 2015-12-30 |
US9021654B2 (en) | 2015-05-05 |
EP2820989A3 (en) | 2015-04-08 |
EP2701568A1 (en) | 2014-03-05 |
CN203815383U (en) | 2014-09-10 |
DE202012012814U1 (en) | 2013-12-05 |
DE102011050697A1 (en) | 2012-11-29 |
EP2820989B1 (en) | 2016-04-20 |
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