DE102022119921B3 - Improved extraction device and method - Google Patents

Abstract

The invention relates to the field of extraction devices. In particular, the invention relates to a dispensing device for liquid media with a replaceable reservoir and a method for this. 20), which can be connected to an end (11) of the reservoir (10) on the dispenser head side, and is set up to dispense a cleaning liquid in portions under mechanical pressure, which can be sucked in by means of a suction tube (21) that protrudes into the reservoir (10). is. It is characterized in that it comprises an angled holder (30) which has a first leg (31) with a bore (33) through which at least the suction pipe (21) can be passed, and a second leg (32), which is provided for attachment to a holding surface, wherein the first leg (31) can be clamped between the dispenser head (20) and the reservoir (10), so that the removal device can be attached to a holding surface and can be actuated with one hand without the risk of slipping.

Description

Introduction

The invention relates to the field of extraction devices. In particular, the invention relates to a withdrawal device for liquid media with an exchangeable reservoir and a method for this.

State of the art and disadvantages

Dispensing devices for liquid media serve to dispense liquids in portions, such as those for cleaning surfaces or the body. Dispensers of various shapes and sizes are known for this purpose. For portioning, mechanical pressure is applied to a dispenser head with one hand. A certain amount of liquid then flows out of the dispenser head, which is either caught by hand or a cleaning cloth, or applied directly to the surface to be cleaned.

It is often problematic that the entire removal device is displaced when the dispenser head is actuated. In particular on surfaces that are tiled or made of ceramic (bathroom, kitchen), it is likely that the removal device will slip or even fall down.

Another known problem is that the amount dispensed at a full stroke of the dispensing head is not always appropriate to the situation. The amount can be too high in the case of low soiling or high cleaning power, or too low in the case of high soiling and low cleaning power. The result is over- or under-dosing. While an increase in the amount of liquid dispensed is easily possible by actuating the dispenser head again, reducing it requires a certain dexterity that not every user has. In addition, known dispenser heads often have the disadvantage that after overcoming a relatively high initial resistance, the dispenser head suddenly and quickly begins to move, since the then relevant sliding friction is significantly lower than the static friction that applies when stationary. Thus, the desired partial stroke is usually exceeded.

From the pamphlet DE 29511897 U1 discloses a soap dispenser which is attachable to a vertical surface such as a wall by means of an bracket. A similar solution suggest the pamphlets DE 196 30 094 C2 , DE 20 2020 106 929 U1 , U.S. 2012/0 111 890 A1 and U.S. 4,280,638 A before. Pamphlet teaches a holder integrated into the dispenser head U.S. 2,407,765 A . A further holder for soap dispensers is disclosed in the publication U.S. 2019/0 261 816 A1 . WO 2020 / 110 033 A2 relates to a holder that can be secured against theft of the container. From pamphlet DE 102 53 850 A1 a holder with an integrated valve is known. However, none of these solutions disclose any device by means of which the stroke of the pump could be limited and thus the amount of liquid dispensed could be metered.

Such a device is indeed from the publication DE 84 26 265 U1 known; the technical solution proposed there relates to a sleeve which is integrated into the holder and which can be screwed into it by means of a thread. However, it must already be used during assembly at the appropriate point, which can be disadvantageous. Also, the accessibility of the sleeve is limited, so that people with limited manual dexterity (eg older people) could have difficulties with the adjustability. The same applies if the hands are already moistened and possibly even already moistened with soap.

Object of the invention and solution

The invention is therefore based on the object of providing a device and a method which avoid the disadvantages of the prior art. Accordingly, the removal device should remain at a predetermined location even in the case of mechanical actuation by means of compressive force. Preferably, the device should also enable improved dosing of the liquid.

The object is achieved by a device according to claim 1 and a method according to independent claim 10. Advantageous embodiments can be found in the respective dependent subclaims, the following description and the figures.

Description

The removal device is used for portioned removal of a cleaning liquid from a reservoir. The portions are typically in the milliliter range; the cleaning liquid can have a dynamic viscosity of water up to that of honey (approx. 1 to 10,000 mPas).

The reservoir is designed as a bottle-like container and has, in particular, a cylindrical shape, or it has a rectangular base area or cuboid basic shape. The content of the container is preferably 50 to 2000 ml, preferably 100 to 1000 ml, and particularly preferably about 200 to 500 ml.

The removal device further comprises a dispenser head, which can be connected to an end of the reservoir on the dispenser head side. In other words, the dispensing head and reservoir can be attached to each other. When mechanical pressure is applied, the dispenser head serves to dispense the cleaning liquid in portions. The pressure is typically provided by a user's finger, hand or arm and is typically 0.1 to 10N, preferably 0.2 to 5N, and most preferably about 1 to 2N. The dispensing head comprises a rigid base and an outlet movable relative to that. By actuating the outlet, the relative distance to the base is reduced, which triggers a pumping process.

The cleaning liquid can be sucked in by means of a suction tube that protrudes into the reservoir. The length of the suction tube is such that it reaches the bottom of the reservoir when the dispensing head and reservoir are connected. The liquid is dispensed through the outlet of the dispenser head when actuated.

The removal device also includes an angled holder. The angle is preferably 90° and can also be adjustable in order to adapt the removal device to different installation positions. It is desirable that the orientation of the vertical axis of the removal device runs approximately vertically.

The holder has a first leg with a bore through which at least the suction tube can be passed. The diameter of the hole is, for example, 15 to 30 mm; but of course depends on the diameter of the section of the dispenser head to be guided through the bore.

The holder also has a second leg which is intended for attachment to a support surface such as a wall or mirror. It is clear that the distance between the center point of the bore and the second leg must be large enough that neither the reservoir nor the dispenser head should protrude beyond the outside of the second leg in an assembly position.

The first leg can be clamped between the dispenser head and the reservoir, so that the removal device can be fastened to an essentially vertical holding surface, for example, and can be actuated with one hand without the risk of slipping. The clamping is done with a force that is in any case so high that the connection is maintained when the dispenser head is actuated or the reservoir is hit from the side.

Furthermore, the removal device comprises a spacer which can be placed in a self-retaining manner between an underside of the outlet of the dispenser head pointing towards the reservoir and an upper side of the base of the dispenser head pointing towards the outlet. The spacer is used to reduce or even block the lift of the dispenser head. If the height of the spacer is equal to the distance between the aforementioned top and bottom in the non-actuated rest position, it acts as a barrier against unintentional actuation, for example during transport. If the height is lower, for example half the distance in the rest position, this allows half a stroke and thus reduces the amount that can be dispensed per stroke by around 50%.

Consequently, the spacer according to the invention enables improved dosing of the liquid.

The spacer can preferably be designed as a cylinder jacket and have a slot which, due to the elastic material of the spacer according to the invention, allows it to be slipped onto the area between the bottom and top from the side, with the spacer remaining there self-retaining after being slipped on, provided it is not is pulled off again with renewed elastic deformation.

It is also conceivable that the outlet and base of the dispenser head can be temporarily separated from one another, so that a circumferentially closed spacer can also be attached in the axial direction.

In addition, said spacer is adjustable in height. Depending on the height set, it can therefore be used both as a barrier and as a limitation. The adjustability can be achieved, for example, by two concentric rings that can be screwed together; the further the rings are screwed into each other, the lower the height. Even a slit (not too wide, e.g. 1 to 5 mm wide) can be maintained.

A gradual change in the height of the spacer is also possible by designing the thread accordingly.

The rings can also be placed one inside the other, with one of the rings preferably having a shoulder. Depending on the arrangement of the rings, this paragraph prevents or enables the other ring to be inserted. This means that when the stroke is limited, it cannot required part of the spacer can be placed inside or outside the other part so that no part can be lost.

The invention thus avoids the disadvantages known from the prior art.

Due to the holder, the removal device according to the invention remains at a predetermined location even when it is mechanically actuated by means of a compressive force. A slipping or falling over of the removal device is thus easily avoidable; In addition, one-handed operation is ensured since the removal device no longer has to be held with the other hand. In addition, it can be attached to a wall, for example, to save space, which takes into account the often limited storage space in bathrooms and toilets.

Various embodiments of the invention are described in more detail below.

According to one embodiment, the mutually facing surfaces of the dispenser head and reservoir are designed magnetically, so that a magnetic clamping force can be provided. To do this, the two surfaces can attract each other so that the leg in between is pinched, or the leg is magnetic so that it attracts the two components. A combination of both variants is also possible.

The advantage of this embodiment is that the two surfaces, which point in the direction of the leg, can be configured very simply and essentially flat.

According to another embodiment, the mutually facing surfaces or regions of the dispenser head and reservoir designed for interaction are designed as a bayonet lock, so that a mechanical clamping force can be provided. Such an attachment is known from the prior art to be reliable and easy to attach and detach.

According to a further embodiment, the surfaces or areas of the dispenser head and reservoir designed for interaction are designed with threads, so that a mechanical clamping force can be provided. Threads are also a robust and easy-to-implement means of creating a mechanically reliable, detachable connection between two components.

According to a preferred embodiment, the reservoir has an end diameter at the end on the dispenser head side which is smaller than the diameter of the bore of the holder, so that this end can be guided through the bore.

In addition, on the side of the dispenser head, the reservoir has a shoulder which is spaced apart from this end and has a shoulder diameter which is larger than the diameter of the bore. Thus, only the end on the dispenser head side lying beyond the shoulder can be passed through the bore. The shoulder rests against the side of the second leg facing the reservoir.

The end of the reservoir on the side of the dispenser head preferably carries a bayonet catch or a thread; however, the magnetic variant described above is also possible.

Furthermore, the dispenser head also has a stop on the reservoir side in its base, up to which the dispenser head can be guided through the bore hole from the side of the second leg opposite the reservoir. The suction tube has a smaller diameter so that it always fits through the hole and protrudes into the reservoir.

The dispensing head is adapted to cooperate with the dispensing head end of the reservoir while providing a clamping force. When the dispenser head and reservoir are screwed or connected to each other, both come closer to each other. In particular, the shoulder and the heel are approaching each other. Between these, the second leg of the holder is arranged, which is finally firmly clamped by the screw or magnetic forces.

The difference between the diameter of the bore of the second leg and the end diameter of the reservoir is preferably between 0.2 and 2.0 mm, so that the reservoir is centered in the bore. The difference can also be significantly larger if it is further ensured that the shoulder of the reservoir is at least partially in contact with the second leg; it is also possible that the hole is square or rectangular; however, a round bore is preferred.

According to one embodiment, the holder is made of stainless steel. It can be made from sheet metal, in which the hole is cut, drilled or punched, and which is then bent.

It can also be made of a suitable plastic or of wood or glass.

According to a further embodiment, the second leg points to its attachment a holding surface provided side an adhesive layer. This adhesive layer is preferably covered by a film until the extraction device is to be fixed at the place of use. The adhesive layer can be present, for example, as double-sided adhesive tape or liquid adhesive.

According to another embodiment, the holder has one or more fastening holes on its side intended for attachment to a holding surface. The holder can then be connected to the holding surface permanently, but detachably if necessary, by means of appropriate screws.

According to a further embodiment, the second leg has one or more suction cups on its side intended for attachment to a holding surface. Using the suction cups, it can be attached to smooth surfaces in particular, as are often found in bathrooms and kitchens. The advantage of this embodiment lies in the particularly simple and residue-free type of attachment.

It is also conceivable that the reservoir has a suction cup on its side facing away from the holder, so that the extraction device can be easily attached to a tiled ledge, which is adjoined by a tiled wall.

The cleaning liquid is preferably used for body care, ie it is intended for use in the bathroom or in the kitchen.

The reservoir can also preferably be changed without tools, for example due to the types of attachment to the dispenser head described above.

Finally, it is preferred that the dispenser head is used to generate foam from the cleaning liquid. For this purpose, the dispenser head has appropriate nozzles, which mix the outflowing cleaning liquid with air, so that a foam is produced during dispensing, which can be used, for example, to moisten wet wipes or sanitary towels.

The advantage of dispensing foam on towels is that the liquid is distributed better and penetrates the mostly very absorbent towels less quickly, which would otherwise lead to them quickly softening.

The invention also relates to a holder of the type described above, adapted to cooperate with a reservoir and a dispensing head as described above.

The invention also relates to a method of using a sampling device as defined above. Accordingly, the holder is first attached to a holding surface such as a wall or a ceramic surface. Thereafter, the reservoir is passed through the bore from a side of the second leg of the holder that points downwards with its upwardly open side, centering also taking place if necessary. Before, after or at the same time, the dispenser head is guided from the upward-pointing side of the second leg with its suction pipe through the bore and into the reservoir. The surfaces of the dispenser head and reservoir designed for plugging, screwing or magnetic cooperation finally come into engagement. By further screwing or plugging, i.e. by a relative (rotating and/or moving towards each other) movement of these components, an entanglement is carried out, whereby the distance between the dispenser head and the reservoir is reduced until the second leg of the holder is clamped between the dispenser head and the reservoir is. To avoid repetition, reference is also made to the above explanations.

To replace the reservoir, it is detached from the dispenser head and replaced or refilled with a full one. It is then reconnected to the dispenser head, the holder remaining at all times on the support surface to which it was once attached.

Additionally, to reduce or completely inhibit displacement of the dispenser head, a spacer is self-retainingly placed between a reservoir-facing bottom of the dispenser head outlet and an outlet-facing top of the dispenser head base, the height of the spacer being less than or equal to the distance between said bottom and top is. If the height equals the distance, the stroke is completely blocked; if it is lower, the stroke is limited, for example to 66%, 50% or 33%.

character list

• In der einzigen 1 ist eine Explosionsdarstellung einer Ausführungsform der erfindungsgemäßen Entnahmevorrichtung dargestellt. Diese umfasst ein als flaschenartiger Behälter ausgestaltetes Reservoir 10, einen Spenderkopf 20 mit einem Saugrohr 21, und einen zwischen diesen beiden einklemmbaren Halter 30. Hierfür weist der Halter 30 eine Bohrung 33 auf. Durch diese ist das Reservoir 10 mit seinem spenderkopfseitigen Ende 11 hindurchführbar, wobei eine Schulter 13 vorhanden ist, welche ein weiteres Hindurchführen unterbindet. Die Schulter 13 hat einen Schulterdurchmesser, welcher größer als der Durchmesser der Bohrung 33 ist.

The invention is explained below by way of example using a figure.

• In the only 1 is an exploded view of an embodiment of the extraction device according to the invention. This comprises a reservoir 10 designed as a bottle-like container, a dispenser head 20 with a suction tube 21, and a holder 30 that can be clamped between these two. The holder 30 has a bore 33 for this purpose. Through this, the reservoir 10 can be passed with its end 11 on the donor head side, wherein a shoulder 13 is present, which prevents further passage. The shoulder 13 has a shoulder diameter which is larger than the diameter of the bore 33 .

The end 11 of the reservoir 10 on the dispenser head side has a thread (not shown) on its surface 12 designed to interact with the dispenser head 20 .

The dispensing head 20 in turn has a surface 22 adapted to cooperate with the reservoir 10, here concealed by the outside of the corresponding part of the pump housing, which here is located in the base 23. This outside also carries a thread (not shown). By screwing these two surfaces 12, 22, the reservoir 10 and dispenser head 20 move towards one another until the shoulder 13 of the reservoir 10 and a stop 23 of the dispenser head 20 rest on both sides of the first leg 31 of the holder 30, so that a mechanical clamping force is provided. which holds the holder 30 firmly in position.

The holder 30 can now be attached to a holding surface (not shown) with the outside of the second leg 32 by having fastening means (not shown) such as screws, adhesive or suction cups.

Two spacers 25A, 25B of different heights are shown on the right in the picture. These can be placed self-retainingly between the underside 24 of the outlet 26 of the dispenser head 20 pointing towards the reservoir 10 and a top side 27 of the base 23 of the dispenser head 20 pointing towards the outlet 26 . For this purpose, they have a slot (no reference number) and consist of an elastic material such as a plastic in particular, so that they can be plugged onto the area provided for this purpose and also removed again from this without tools by slightly bending them open. Depending on the height of the spacer 25A, 25B, this can, used as described, either act as a lock against actuation or as a stroke limiter.

Reference List

10

reservoir

11

end of the dispenser head

12

area set up for interaction

13

shoulder

20

dispenser head

21

intake manifold

22

area set up for interaction

23

attack

24

bottom

25A,25B

spacer

26

outlet

27

top

30

holder

31

first leg

32

second leg

33

drilling

Claims (12)

Removal device for removing portions of a cleaning liquid from a reservoir (10), the reservoir (10) being designed as a bottle-like container, and the removal device comprising a dispenser head (20) which can be connected to an end (11) of the reservoir (10) on the dispenser head side , and is set up for dispensing a cleaning liquid in portions under mechanical pressure, which can be sucked in by means of a suction tube (21) which protrudes into the reservoir (10), the removal device comprising an angled holder (30) which has a first leg (31 ) having a bore (33) through which at least the suction tube (21) can be guided, and having a second leg (32) which is provided for attachment to a holding surface, the first leg (31) being between the dispenser head (20) and reservoir (10) can be clamped so that the removal device can be fastened to a holding surface and operated with one hand without the risk of slipping, characterized in that it comprises a spacer (25A, 25B) pointing towards the reservoir (10 ) Underside (24) of the outlet (26) of the dispenser head (20) and an upper side (27) of the base of the dispenser head (20) pointing towards the outlet (26) can be placed in a self-retaining manner, said spacer (25A, 25B) being elastic and in its Height is adjustable, - by comprising two concentric rings that can be screwed together, or - by the rings being placeable one inside the other, with one of the rings having a shoulder so that, depending on the arrangement of the rings, this shoulder prevents or enables insertion of the other ring. extraction device claim 1 , wherein the spacer (25A, 25B) has a slot so that it can be plugged onto the area between the bottom and top from the side. extraction device claim 1 or 2 , wherein mutually facing surfaces (22,12) of the dispenser head (20) and reservoir (10) are designed magnetically, so that a magnetic clamping force can be provided. extraction device claim 1 or 2 , surfaces (22, 12) of the dispenser head (20) and reservoir (10) designed for interaction being designed as a bayonet lock, so that a mechanical clamping force can be provided. extraction device claim 1 or 2 wherein surfaces (22, 12) of the dispenser head (20) and reservoir (10) that are designed to interact are configured with threads, so that a mechanical clamping force can be provided. extraction device claim 3 until 5 , wherein the reservoir (10) at the end (11) facing the dispenser head has an end diameter which is smaller than the diameter of the bore (33) of the holder (30), and a shoulder (13) spaced from this end (11) and having a shoulder diameter which is larger than the diameter of the bore (33), so that only the end (11) on the dispenser head side beyond the shoulder (13) can be passed through the bore (33), and this end (11) on the dispenser head side has a bayonet lock, a thread, or a magnetic closure, and the dispenser head (20) also has a reservoir-side stop (23) up to which it can be passed through the bore (33) from the opposite side, providing a clamping force for cooperation is set up with the end (11) of the reservoir (10) on the donor head side. extraction device claim 6 , wherein the difference between the diameter of the bore (33) and the final diameter is between 0.2 and 2.0 mm, so that the reservoir (10) is centered in the bore (33). Sampling device according to one of Claims 1 until 7 , wherein the second leg (32) has an adhesive layer and/or one or more fastening bores and/or one or more suction cups on its side intended for attachment to a holding surface. Sampling device according to one of the preceding claims, wherein the cleaning liquid is used for personal hygiene and/or the reservoir (10) can be changed without tools and/or the dispenser head (20) is used to generate foam from the cleaning liquid. A method of using a sampling device according to any one of the preceding claims, wherein first the holder (30) is attached to a support surface, after which the reservoir (10) passes through the bore ( 33) is passed through, and the dispenser head (20) is guided from an upward-facing side of the second leg (32) with its suction tube (21) through the bore (33) and into the reservoir (10) until surfaces (22, 12) of the dispensing head (20) and reservoir (10) engage, and then a relative interlocking movement of these components is performed, whereby the distance between the dispensing head (20) and reservoir (10) decreases until the second leg (32) of the holder is clamped between the dispenser head (20) and the reservoir (10). procedure after claim 10 wherein to replace the reservoir (10) it is detached from the dispenser head (20), replaced with a full one or refilled, and reconnected to the dispenser head (20), the holder (30) remaining on the support surface at all times. Procedure according to one of Claims 10 or 11 , wherein to reduce or completely inhibit the stroke of the dispenser head (20), a spacer (25A, 25B) between a reservoir (10) facing underside (24) of the outlet (26) of the dispenser head (20) and an outlet (26) pointing towards the top (27) of the base of the dispenser head (20) is placed self-retaining, the height of which is less than or equal to the distance between the bottom (24) and the top (27).

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