EP2216261A2 - Dosing device for a hygiene fluid - Google Patents

Abstract

The device has an actuating device for actuating a piston to execute conveying strokes. An adjusting device has a locking groove (14) with an elevation (14') and a locking element (10) with positioning recesses (16, 16', 16'', 16''', 16''''). The locking element is detachably arranged in the groove and the elevation is brought in engagement with the recesses such that the adjusting device is positioned in the groove in different heights. An edge (11) projecting from the groove provides a stop for a section of the actuating device such that length of the conveying strokes is adjustable.

Description

The invention relates to a metering device for placement on a Hygienefluid container which allows a metered dispensing of the hygiene fluid.

For this purpose, various dispensers and metering devices are known from the prior art, which may be secured by a housing attached to a wall or may be integrated into a surface surrounding a washing device. Common to them is a pumping device which is operated by means of a lever or pushbutton to effect an output of the hygiene fluid. The pump device is often realized as a piston pump and comprises a displacement in which a manually operable by means of the lever or push button piston is arranged, which is held by a spring element in a rest position. If the pump device is now actuated via the lever or the pushbutton to dispense the hygiene fluid, the piston increases the pressure against the spring force by compressing the fluid in the displacement, so that a delivery volume of the hygiene fluid is displaced and can be dispensed. When the pressure on the pumping device is relieved, the spring causes the piston to return to its rest position, the next delivery volume being sucked into the displacement by the resulting negative pressure.

A dispenser for soap, hand lotion, disinfectant or the like describes the DE 35 05 893 , In this case, the dosage is effected by means of a peristaltic pump, wherein the promotion of the liquid is effected by mechanical crushing of the tube by means of a handle. The peristaltic pump is used because of their suitability for aggressive media, as they do not come into contact with seals or other movable or sealed parts of a feed pump.

Other metering see their task in the non-contact output of the dosing, for example in the DE 35 31 385 or the DE 101 03 890 in order to avoid that the hand to be cleaned or disinfected touches the dosing device and leaves germs there.

Based on this prior art, it is desirable to provide a metering device for a hygienic fluid in which the amount of fluid to be metered is adjustable.

This object is achieved by a metering device for a hygiene fluid with the features of claim 1. Further developments are set forth in the subclaims.

A first embodiment relates to a metering device which is provided for dispensing a hygiene fluid, for example a liquid soap or a disinfectant solution, but also a hand lotion, wherein a hygiene fluid container is connected to a metering device. A dispensing device transfers the hygiene fluid from the fluid reservoir to an output device by being pumped via a riser and conduit to a dispensing port and dispensed from the dispensing device.

The pumping device is a piston pump with a piston which is moved via a corresponding actuating device in order to displace a delivery volume from the pumping chamber. So that the fluid volume to be taken can be set and determined precisely, an adjusting device is arranged on the pumping device, which comprises a latching groove arranged on the pumping device and a latching element which can be brought into engagement with one another. The latch member may be positioned in the latch groove at different heights, whereby an edge of the latch member protruding from the latch groove provides a stop for a portion of the piston actuator.

Thus, the stroke length of the delivery stroke is adjustable because the piston can not be pushed deeper than the adjustment allows. Thus, the volume of the hygienic fluid to be dispensed is determinable and adjustable as a function of the calibrated adjusting device, since several positions are possible for adjusting the latching element in the receiving groove, which allow the delivery of differently sized volumes of hygiene agent. With the metering device according to the invention, it is thus possible to regulate the amount of the dispensed hygienic fluid via the adjusting device, via which the subvolume to be displaced can be adjusted.

The arrangement of the adjusting device takes place in the immediate vicinity of the pumping device, the piston is moved by means of the piston confirmation device in the pumping chamber. For this purpose, the piston confirmation device of the dispensing device is connected to the piston via a pressure-transmitting element, so that when a pressure is exerted on the dispensing device, the piston is moved via the pressure-transmitting element. The piston can be acted upon by means of a spring element via the pressure-transmitting element with a restoring force, so that when the piston actuating device is not actuated, the piston is in a rest position in which there is a maximum delivery volume in the pumping chamber. In order to be able to influence the stroke length of the piston with the piston actuating device, the adjusting device is arranged around the pressure-transmitting element and / or the spring element, so that the stop is provided for the piston-actuating device.

This advantageously ensures that a portion of the piston actuating device strikes against the stop provided by the adjusting device upon actuation of the pumping device and the piston can not be further depressed.

The adjusting device can be arranged in several positions, wherein the stop of the adjusting occupies a different position in each position. Each position of the stop of the adjusting device can be assigned to a subvolume to be conveyed. This is done via the direct correlation between the stroke and the delivery volume, wherein the variation of the stroke length is achieved via the various positions of the adjusting in which the stop each has a different height, so that the piston actuator covers a different length of stroke until it touches the stop , Thus, an exact adjustment of the dosage is guaranteed, so that only the required amount of hygienic fluid is spent and unnecessary waste is prevented.

In this case, the latching groove which receives the latching element of the adjustment device can be connected to the dispenser device (3) or integrated therein.

In a further embodiment, the fluid container and the dispensing device of the metering device can be accommodated in a holder, wherein the latching groove on the holder is provided exactly at the portion at which the pumping device of the dispenser device rests on the fluid container, so that the adjusting device around the region of Pumping device can be arranged. The pumping device is also held by the holder.

With the holder, the metering device can be advantageously attached to a wall in the vicinity of a washing device.

In yet another embodiment of the invention, the adjusting device can be designed as a ring element, which can be arranged coaxially around the pumping device or the intended area of the pumping device. For this purpose, the ring element can be releasably inserted into the latching groove of the holder.

The solubility of the adjustment of the locking groove is a prerequisite that they can be arranged in different positions, if necessary, for adjusting the subvolume to be conveyed.

The ring member is formed at its protruding from the locking groove edge as a flange, so that upon actuation of the piston actuating device, a portion thereof strikes the flange and prevents further depression of the piston.

In order to receive the adjustment stably in the holder, at least two elevations are provided in the latching groove, which come into engagement with corresponding recesses of the cylindrical side wall of the ring member, which are arranged accordingly.

To realize the different heights for the stop, the recesses of the latching element have different depths, so that the latching element with the different recesses in each case sits higher or lower on the elevations.

As a Kofbenbetätigungsvorrichtung may on the one hand a push button be provided, on the other hand, or additionally arranged above the push button, the piston actuating device may be a lever which can be pivotally arranged with respect to the dispenser and connected to the holder, and in which a support structure is further provided which abuts on the above-described edge of the latching element.

These and other advantages will be apparent from the following description and the accompanying drawings and further illustrated.

Fig. 1

eine Seitenschnittansicht einer Dosiervorrichtung für ein Hygienefluid nach dem Stand der Technik,

Fig. 2

eine Seitenschnittansicht eines Teils einer Halterung für eine erfin- dungsgemäße Dosiervorrichtung,

Fig. 3

die gleiche Ansicht wie Fig. 2 mit einer erfindungsgemäßen Verstell- vorrichtung,

Fig. 4

eine Vorderschnittansicht auf eine in einer Halterung angeordneten Dispenservorrichtung nach dem Stand der Technik,

Fig. 5

eine Vorderschnittansicht einer in einer Halterung angeordneten Dispenservorrichtung mit einer erfindungsgemäßen Verstellvorrich- tung,

Fig. 6

eine Seitenschnittansicht des Gegenstands aus Fig. 4,

Fig. 7

eine Seitenschnittansicht eines Hebels als Kolbenbetätigungsvorrich- tung,

Fig. 8

eine Unteransicht auf den Hebel aus Fig. 7,

Fig. 9

eine Unteransicht auf eine erfindungsgemäße Verstellvorrichtung,

Fig. 10

eine Seitenschnittansicht auf die erfindungsgemäße Verstellvorrich- tung aus Fig. 9,

Fig. 11

eine Draufsicht auf die erfindungsgemäße Verstellvorrichtung, und

Fig. 12

eine Draufsicht auf die in der Dosiervorrichtung angeordnete Verstell- vorrichtung.

The figures and the following description serve to better understand the subject. Articles or parts of objects which are substantially the same or similar may be given the same reference numerals. The figures are merely a schematic representation of an embodiment of the invention. Showing:

Fig. 1

1 is a side sectional view of a prior art hygienic fluid metering device;

Fig. 2

1 is a side sectional view of a part of a holder for a dosing device according to the invention;

Fig. 3

the same view as Fig. 2 with an adjusting device according to the invention,

Fig. 4

a front sectional view of a arranged in a holder dispenser device according to the prior art,

Fig. 5

1 is a front sectional view of a dispenser device arranged in a holder with an adjusting device according to the invention;

Fig. 6

a side sectional view of the subject Fig. 4 .

Fig. 7

a side sectional view of a lever as a piston actuating device,

Fig. 8

a bottom view on the lever Fig. 7 .

Fig. 9

a bottom view of an adjusting device according to the invention,

Fig. 10

a side sectional view of the invention Verstellvorrich- from Fig. 9 .

Fig. 11

a plan view of the adjusting device according to the invention, and

Fig. 12

a plan view of the arranged in the metering device.

The present invention is intended to overcome disadvantages associated with known sanitary dispensers and dispensers. The known operating lever on such Dosierspendem let, at least as far as they are available in general use as a simply realized and purely mechanically functioning dispenser, no reproducible determinable output volume of hygiene agent by simply the pump piston is pressed down more or less by the known pusher.

However, it is often desired that certain users or user groups apply a defined minimum amount of sanitary or disinfectant, for example in areas where hygiene plays a major role, such as in hospitals or in kitchens or kitchens in the catering: There should minimum quantities set the agent and be adjustable on Dispensergerät. This also applies to the entire health and care business. There should be ensured both for staff and for visitors that the hands can be sufficiently disinfected. This presupposes that a correspondingly sufficient amount is dispensed by the dosing device for the disinfectant. This sufficient amount may vary depending on the type of disinfectant or the size of the hands or the area of use.

By means of the dosing dispenser according to the invention can be reliably set, which amount of hygiene fluid to be output. In the present case, hygienic fluid is understood as meaning a cleaning agent, such as a liquid soap, a disinfectant or a care product for hands, for example a hand cream or lotion.

The fluid container is in fluid communication with a dispensing device, the dispensing device comprising a riser, a pumping device, and a dispensing port. The hygiene fluid may be delivered from the fluid container via the riser to the dispensing opening where it can be received by a user. For this purpose, the pumping device can have a pumping chamber into which the riser pipe opens out of the fluid container, wherein a check valve prevents a backflow of the hygiene fluid into the fluid container. In the pumping chamber, a piston movable via a piston actuating device can be arranged, which displaces the fluid delivery volume present in the pumping chamber. This may, for example, take place via a delivery line centered in the piston which ends in the dispensing opening for the hygiene fluid via a horizontal arm or a line of the dispenser device.

According to the invention, an adjusting device is arranged on the pumping device, which has a latching groove connected to the dispensing device and arranged on the pumping device with at least one elevation. Furthermore, it comprises a latching element with a plurality of positioning recesses of which at least two have a different depth. The latching element can now be releasably placed in the latching groove, wherein the survey are brought into engagement with one of the positioning recesses. Since the positioning recesses have a different depth, the adjustment can come to lie higher or lower in the locking groove. In any case, an edge will protrude out of the latching groove, which protrudes correspondingly far or less far and a stop for at least a portion of the piston actuating device represents, so that the stroke length of the delivery stroke is determined and - by the different depths recesses - is adjustable.

A pressure mediating member of the dispensing device imparts pressure to the piston exerted on the piston actuator. This is acted upon in its rest position by a spring element with a spring force which is arranged around the pressure mediator element, which is in operative connection with the piston and which mediates the pressure effect of the spring or acting against the spring actuating movement of the piston actuating device to the piston. Upon actuation of the piston against the spring force, a fluid delivery volume is discharged from the pumping chamber through the delivery line, in which again a check valve prevents backflow. When the pressure on the piston actuating device is released, the spring element moves the piston back to its rest position, so that a new delivery volume of hygiene fluid from the fluid container is sucked through the riser pipe into the pumping chamber by the negative pressure arising in the pumping chamber.

The adjusting device will be arranged in particular in the region of the pumping device, in which the pressure-transmitting element or the spring element is arranged.

In this case, the latching groove may be connected to a part of the dispensing device which is not moved by the piston actuating device or the pressure-transmitting element, so that when the pressure is exerted on the piston-actuating device, the intended section strikes against the adjusting device.

According to the invention, the metering device can be surrounded by a holder, which can be suitable, for example, for attachment to a wall. The latching groove may then be attached to the bracket around the ride-on portion of the dispenser be provided on the fluid container.

Manufacturing technology and design reasons, it is advantageous if the latching element is a ring with an annular wall; the positioning recesses are then present on an underside of the annular wall. In order to improve the abutment of the piston actuator or the corresponding portion thereof, the rim may be a flange.

In order to store the ring stable in the latching groove and to enable a uniform actuation, two identical positioning recesses in pairs can be arranged opposite each other on the circumference of the cylindrical side wall; Accordingly, in the latching groove are two opposing elevations, which support the ring member by engagement with the recesses.

A pivotable lever, which may be a domed structure with supports, may act as a cofactor actuator, the supports being arranged to abut the flange of the latching ring. At the same time, the housing cover lever acts on the pressure-transmitting element of the dispenser for actuating the piston, or for dispensing the hygiene fluid, wherein the adjustment limited by the limitation of the lever travel at the stop of Auflagerstruktur the stroke and thus the amount of fluid dispensed.

Alternatively, a metering device according to the invention, which is not arranged in a holder, as a piston actuating device have a push button on the dispenser, so that when exerting pressure on the dispenser of the piston in the pumping chamber is moved via the pressure mediator element. The push button can have a sufficiently large pressure surface area or an element arranged under the pressure surface, which also abuts against the edge of the latching element. A combination of housing cover lever and push button is conceivable.

A metering device 1 according to the invention (shown in FIG Fig. 5 ) corresponds in its mode of pumping to a wide extent a metering device according to the prior art, as in Fig.1 shown, wherein the fluid container 2 is received in a holder 13. Furthermore, a dispensing device 3 extends from a riser 4, which is arranged in the fluid container 2, via a pumping chamber 6 with the piston 8 movable therein, further through a delivery line 4 'and a horizontally extending discharge line 4 "to the output 5 for the hygiene fluid.

A pressure actuation of the housing cover 7 ', see Fig. 5 acting as a lever is transmitted to the piston actuator 7 disposed above the pumping device of the dispenser 3, and via the compression of the pumping chamber 6 in the pumping volume 6, outputs the hygienic fluid through the delivery pipe 4 'and the discharge pipe 4 "to Fluid output 5. Upon completion of the actuation of the lever 7 ', the dispensing device 3, and thus the piston 8, returns by the action of the restoring force of the spring element 12 (shown in Figs Fig. 4 and 6 ) back to the starting position.

In Fig.1 . 4 and 6 is the delivery line 4 ', which passes centrally through the piston 8 and passes into the horizontal delivery line 4 ", and the pressure mediation element 3' to see .. The spring element 12 surrounds here, the pressure mediator element 3 ' Druckvermittieretement 3 ', the movement on the piston 8. In this case, the spring element 12 is compressed so that it raises the dispenser device 3 after the end of the pressure exercise again in the starting position, whereby the piston 8 is retracted via the mediator element 3' in the starting position.

Furthermore, in Fig. 4 a spacer ring 13 'shown to accommodate different sized fluid container 2 in the holder 13 can. For this purpose, a spacer ring 13 'of appropriate size is inserted between the holder 13 and a bearing shell 3 ", which surrounds the pumping device of the dispenser device 3 and provides the seat with the holder 13. With such a spacer ring 13', the distance of the piston actuating device can also be used for different fluid containers 7 of the dispensing device 3 and the bearing shell 3 "are adapted with respect to the holder 13 in order to allow an arrangement of an adjusting device 10 according to the invention (not in FIG Fig. 4 shown), so that upon actuation of the piston actuating device 7, the corresponding portion of the adjusting device 10 can strike after covering the preset stroke.

Fig. 2 shows a portion of a holder 13 in which a circumferential latching groove 14 is arranged with two elevations 14 'for the adjusting device 10, as seen from Fig. 3 becomes apparent. The latching element, here a ring 10, is inserted into the latching groove 14 of the holder 13 and one of the opposing pairs of recesses 16 is engaged with a pair of projections 14 '. The elevations 14 'in the latching groove 14 are likewise arranged opposite one another around a region which is the receptacle of a dispensing device 3 (not shown in FIG Fig. 2 and 3 ) serves.

This arrangement can also Fig. 5 are removed, in which the adjusting device 10 engages over a recess 16 'in the elevation 14' of the latching groove 14 of the bracket 13. As a result, the edge 11 is at a defined height, so that an in FIGS. 7 and 8 illustrated support structure 9 of the lever 7 'can hit when pressing down on the edge 11.

Out Fig. 9 It can be seen how the recesses 16,16 ', 16 ", 16"', 16 "" over the circumference of the cylindrical annular wall 15 of the adjusting device 10 are distributed.

In each case two opposite positioning recesses 16,16 ', 16 ", 16'", 16 "" equal depths. Fig. 10 shows this from another perspective with five different recess depths. In the arrangement of the locking ring 10 in the locking groove 14, wherein recesses of different depths in the elevations 14 ' engage (see Fig. 3 or 5 ), the stop 11 of the adjusting device 10 is at different heights, so that upon actuation of the piston actuating device 7,7 'the support structure 9 coincides with the stop 11, whereby the stroke of the piston 8 is determined.

Furthermore, it can be provided that, as in Fig. 11 represented, on the upper side of the adjusting device 10, a scale is provided which indicates the amount of fluid to be dispensed or the sub-volume. For this purpose, the graduations 17 are mounted on the top of the adjusting device 10 at the locations corresponding to the recesses 16 to 16 "" on the bottom (which can not be seen in the representation from above). For this purpose, the holder 13 may have a pointer or a marking 18, as in FIG Fig. 12 shown, which is associated with a Einrasterhebung 14 ', so that the pointer 18 points to the scale 17 of the scale, the recess engages the elevation 14' of the latching groove 14. The graduation can be in milliliters and display the output volume.

LIST OF REFERENCE NUMBERS

1 metering 2 fluid container 3 dispenser device 3 ' Pressure switch element 3 ' Bearing shell of the pumping device 4 riser 4 ', 4 " Delivery lines in the dispenser device 5 discharge opening 6 pumping chamber 7 Piston actuator 7 ' Lever cover 8th actuable piston 9 Section of the piston actuator, Auftagerstruktur 10 Adjustment device, snap ring 11 attack 12 spring element 13 bracket 13 ' spacer 14 hooking groove 14 ' Elevation in the latching groove 15 Side wall 16,16 ', 16 ", 16'", 16 "" recesses 17 scale 18 Pointer, mark

Claims (11)

Dosing device (1) for placement on a hygiene fluid container (2) for a hygiene fluid,
the dosing device (1) comprising a dispensing device (3) comprising a pump device for dispensing the hygiene fluid from the container (2) via a riser (4) through a conduit (4 ', 4 ") from a dispensing opening (5),
wherein the dispensing device (3) is seated on an opening of the hygiene fluid container (2) and
wherein a pumping chamber (6) of the pumping device has a piston (8) which can be actuated via a piston actuating device (7) for carrying out delivery strokes,
characterized in that an adjusting device is arranged on the pumping device, the - An arranged on the dispenser device (3) and on the pumping device Einrastnut (14) with at least one elevation (14 '), and - A latching element (10) with a plurality of positioning recesses (16,16 ', 16 ", 16'", 16 ""), of which at least two positioning recesses (16,16 ', 16 ", 16"' , 16 "") have a different depth, includes,
wherein the latching element (10) can be arranged detachably in the latching groove (14), and
wherein the at least one elevation (14 ') can be brought into engagement with one of the positioning recesses (16, 16', 16 ", 16 '", 16 ""),
such that the adjusting device can be positioned higher or lower in the latching groove (14) and a rim (11) projecting from the latching groove (14) provides a stop for at least one section (9) of the piston actuating device (7),
so that a stroke length of the delivery stroke is adjustable. Dosing device (1) according to claim 1, characterized in that the dispensing device (3) via a pressure mediator element (3 ') is in operative connection with the piston (8) of the pumping device, and wherein the adjusting device is arranged around the pressure mediator element (3'). Dosing device (1) according to claim 1 or 2, characterized in that the dosing device (1) has a holder (13) for holding the fluid container (2) and the dispensing device (3). Dosing device (1) according to claim 3, characterized in that the latching groove (14) - Is connected to the dispenser device (3) or - Is provided on the bracket (13) around the Aufsitz-section of the dispensing device (3). Dosing device (1) according to at least one of claims 1 to 4, characterized in that the latching element (10) is a ring element (10) with an annular wall (15), and wherein the positioning recesses (16,16 ', 16 ", 16 '", 16"") are arranged on an underside of the annular wall (15). Dosing device (1) according to at least one of claims 1 to 5, characterized in that the edge (11) is a flange (11). Dosing device (1) according to at least one of claims 1 to 6, characterized in that in each case two of the plurality of positioning recesses (16,16 ', 16 ", 16'", 16 "") are arranged opposite to each other and a same Have depth. Dosing device (1) according to at least one of claims 1 to 7, characterized in that the latching groove (14) has two opposing elevations (14 '). Dosing device (1) according to at least one of claims 1 to 8, characterized in that the piston actuating device (7) is a push button (7) which is arranged on the Dispenservomchtung (3). Dosing device (1) according to at least one of claims 1 to 9, characterized in that a shape or size of the push button (7) is greater than an inner diameter of the engagement groove (14) protruding edge (11) of the latching element (10). Dosing device (1) according to at least one of claims 1 to 8, characterized gekennzeichneii that the Kotbenbetätigungsvorrichtung (7) as a lever (7 ') is formed, which is pivotally connected to the holder (13), and having a support structure (9) , which abuts against the edge (11) of the latching element (10) projecting from the latching groove (14).

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