EP3852936A1

EP3852936A1 - Spray head cartridge

Info

Publication number: EP3852936A1
Application number: EP19731252.3A
Authority: EP
Inventors: Sigrid GLANZER
Original assignee: Donau Kanol & Co KG GmbH
Current assignee: Donau Kanol & Co KG GmbH
Priority date: 2018-09-19
Filing date: 2019-06-14
Publication date: 2021-07-28
Also published as: EP3626353A1; WO2020057785A1

Abstract

The invention relates to a cartridge (1) for releasably connecting to a manually operated spray head (2), said cartridge (1) comprising: a container (3) for accommodating a first liquid, an outlet (4), a pumping device (5) for pumping a first liquid from a container (3) to the outlet (4), and a coupling (6) for transmitting power from the manually operated spray head (2) to the pumping device (5).

Description

Spray head cartridge

The present invention relates generally to a cartridge for releasable connection to a hand-operated spray head, the

Cartridge comprising a container for receiving a

Liquid.

There are cartridges or cartridges for hand-operated

Spray heads for pumping and mixing two liquids are known. For example, DE 10 2006 029 345 A1 shows one

Dispensing devices with such a spray head, wherein preparations can be conveyed from two different containers, mixed and released into the environment at the same time by means of conveying devices provided in the spray head. Interchangeable cartridges with different ones can be included

Liquids are used.

Such dispensing devices preferably come in the

Detergent industry. In contrast to

Disposable containers can be made with the help of these

reusable and refillable dispensing devices, various cleaning agents are mixed and expelled. A first liquid is in the form of a

Addition liquid, for example a

Detergent concentrate, and a second liquid in the form of a solvent, for example water, separated

stored from each other and only mixed with each other during active use before ejection.

A different kind of dispenser, to choose from

alternate dispensing of different liquids or the same liquid from different containers is shown in US 2012/031925 A1. One in four, in

Essentially independent spray bottle composite spray device provided. Over the pump heads of the

Spray bottle is arranged a common actuating cap, which by rotating the actuating cap

Spray bottle is selected, which should be used.

The spray bottles can be replaced individually. A disadvantage of the solutions known from the prior art, however, is that after the mixing process between the

Solvents and the addition liquid, which can be composed of surfactants, acids, bases, bleaches or enzymes, depending on the application, residues in the

Urückbleiben addition liquid containers, pipes, conveyors and mixing chambers _Z. Therefore, the alternate use of different interchangeable detergent substances leads to undesirable mixtures and

possible chemical reactions, which affect both the health of the operating personnel and the material life or

Can negatively affect the integrity of the dispensing device.

Accordingly, the object of the present invention is to alleviate or to alleviate the disadvantages of the prior art

remedy. The invention has in particular the aim of creating an interchangeable cartridge which can be arranged on a hand-operated spray head and in which it is alternating

Using different liquids from different cartridges does not result in any mixing of residues between the liquid contained in the cartridge currently in use and a liquid from a previously used cartridge.

This object is achieved by a cartridge with the features of claim 1. Preferred embodiments are specified in the dependent claims.

The cartridge according to the invention of the type mentioned at the outset has a container for receiving a first liquid, an outlet, a conveying device for conveying a first liquid from the container to the outlet, and a coupling for transmitting energy from the hand-operated spray head to the

Conveyor on. The clutch is the

Transfer actuation energy of an actuated actuating means of a hand-operated spray head to the conveyor device of the cartridge. A coupling for energy transfer or more precisely one of at least two parts of such a device is therefore generally understood in the context of the present context, regardless of the form in which this energy is transmitted. The conveying device for conveying a first liquid is therefore part of the exchangeable cartridge and is exchanged together with the container for the first liquid. This can be in the spray head on a

Conveying device for the first liquid can be dispensed with, which allows a minimization of the amount of the first liquid remaining in the spray head when changing the cartridge.

For example, the spray head can be set up such that the outlet of the cartridge is arranged as close as possible to an outlet opening for the liquid mixture, so that the

Line volume, which depends on the mixture before delivery

is flowed through, and thus potentially in the spray head

reduce the remaining amount of the first liquid.

For the purposes of this disclosure, the location and direction information, such as "above", "below", etc., refer to the

intended use condition of the cartridge, in which the cartridge is placed on a spray head which, with its rotary lock, for example, stands on a flat horizontal surface.

The conveyor of the cartridge can be designed as a positive displacement pump. The conveying device can, for example, have an internal reservoir (e.g. a cylinder) for receiving and dispensing the first liquid. By actuating the actuating means, pressure is built up in the internal reservoir, as a result of which the conveying device conveys at least part of the first liquid from the internal reservoir through an outlet channel in the direction of the outlet. When omitting the

Actuating means creates a negative pressure in the internal reservoir of the conveyor, whereby part of the first liquid is drawn from the container into the internal reservoir of the conveyor and fills it via a supply channel. The positive displacement pump can have a check valve, which is optionally made in one piece both between the outlet channel and the internal reservoir as an outlet valve and between the

Supply channel and the internal reservoir can act as an inlet valve. The check valve can be made of an elastic material, for example as a rubber plate. If this variant increases the pressure in the internal reservoir, the inlet valve closes and the end of the check valve facing the outlet channel bends in the direction of the outlet channel, whereby the first liquid located in the internal reservoir is conveyed towards the outlet via the outlet channel. If the pressure in the internal reservoir drops in this variant, the outlet valve closes and the end of the check valve facing the supply duct bends in the direction of the internal reservoir, as a result of which the first liquid located in the container can flow into the internal reservoir via the supply duct. Positive displacement pumps can be constructed comparatively simply mechanically and thus combine simple manufacture with high reliability. In principle, other types of pumps can also be used in the context of the invention, for example flow pumps.

In this context, the conveyor can

Have reset element, wherein the reset element by an energy transfer via the clutch from the hand-operated spray head to the conveyor against a restoring force (e.g. a spring) of the reset element from a

Starting position can be deflected into a deflection position and is set up to return from the deflection position to an initial position while exerting the restoring force and thereby at least part of a pump cycle

Drive conveyor. As a result, the requirements for the clutch can be reduced and it is sufficient, for example, if force is or can be applied via the clutch in only one direction. A movement in the other direction can then be driven by the reset element.

According to a first embodiment of the cartridge, the

Conveying device be a reciprocating piston pump with a piston, the coupling being a mechanical coupling for connection to an actuating means of the hand-operated spray head.

For example, the piston can be mechanically connected directly to the actuating means of the hand-operated spray head via the coupling. A mechanical coupling is generally considered to be a movable element which is used for transmission

(Absorption and / or exercise) of a force (for example a compressive force and / or a tensile force) and / or a moment is suitable. A mechanical coupling can be formed, for example, by at least one movable contact surface (ie a contact surface of a movably mounted element), a connection to the actuating means being provided via the contact surface

can be produced. The mechanical clutch can be, for example, a clutch spring connected to the piston for connection to a trigger and / or a trigger spring of the spray head.

This embodiment has the advantage of being high

Reproducibility of the delivered quantities of the first liquid is achieved. Assuming that the spray head also always delivers the same amount of a second liquid, this variant can therefore reliably provide a constant one

Mixing ratio of the two liquids can be achieved.

According to a second embodiment of the cartridge, the

Conveying device of the cartridge can be a hydraulically articulated diaphragm pump (also referred to as a piston diaphragm pump), the coupling being a hydraulic coupling for connection to a pressure line of the manually operated spray head. The

The membrane pump is hydraulic, for example, via a branch that branches off from the pressure line of the hand-operated spray head

hydraulic clutch coupled with a spray head pump.

For example, an outside of the membrane (outside with respect to the internal reservoir) with the pressure line of the

Spray head pump to be hydraulically connected. This embodiment has the advantage that the arrangement of the conveyor can be chosen flexibly, for example close to the

Pressure line. This results in a possible short line for the first liquid, so that a few empty strokes are required until the first liquid reaches the outlet. This variant can also be used for a mechanical coupling

Energy transfer from the hand-operated spray head to the

Conveyor are dispensed with, their manufacture

is comparatively complicated. Finally, this variant has the advantage that no first liquid is removed from the container if no pressure can be built up in the pressure line because the spray head runs empty (for example if a container for a second liquid - such as a

Water tank - is empty). Alternatively or additionally, the cartridge can

Extension piece for a pressure line of the hand-operated

Have spray head. The extension piece extends using the cartridge on a spray head

Pressure line. That enables, at the outer end of the

Extension piece e.g. to provide a nozzle adapted to the first liquid. Furthermore, in this case the outlet can open into the extension piece so that the first liquid never gets into the spray head.

In this context, the hydraulic coupling can also be provided in the extension piece. That is, the

The pressure line of the spray head is connected to the hydraulic coupling via the extended section in the extension piece. As a result, only a single fluid connection of the

Spray head with the cartridge required.

To increase the pressure that can be achieved in the hydraulic clutch, a taper in the extended pressure line can be provided in the extension piece downstream of the hydraulic clutch. Because of the rejuvenation prevails in

Seen flow direction, in front of the tapered line section increased flow resistance, causing parts of the

Fluid flow via the path of the lesser

Flow resistance, over the branching section of the hydraulic coupling, towards the bottom of the

elastic membrane of the diaphragm pump can be passed.

The cartridge can be used for simple assembly and disassembly of the cartridges on a hand-operated spray head

Have snap connection elements for detachable connection to the hand-operated spray head. Corresponding receiving projections can be provided on the hand-operated spray head, on which the snap connection elements can engage.

Snap connections can be made and released quickly and safely and are particularly suitable to achieve a desired contact pressure e.g. to achieve tight fluid connections.

Alternatively, the cartridge can have at least one locking element for locking the cartridge on the hand-operated spray head exhibit. The locking element can, for example, be movable, for example in the form of a movable, in particular pivotable, bolt.

This allows greater flexibility with regard to the fit of the spray head, since there are no specific ones

structural arrangements must be made on the spray head.

The snap connection elements can be arranged, for example, on a rear side of the cartridge opposite the outlet of the pressure line of the spray head. In combination with the extension piece mentioned above, a spray head nozzle on the front of the spray head can pre-center the cartridge when the cartridge is placed in order to guide the snap connection elements in the direction of the corresponding receiving projections. When the cartridge is used on the spray head, the snap connection elements are in mechanical engagement with the receiving projections.

In addition, a suction line of the conveyor can be connected to an opening in the bottom of the container. This arrangement enables complete emptying of the container when the cartridge is used upright.

In addition, the present disclosure also relates to one

Spray head comprising a spray pump for drawing in a second liquid and dispensing the second liquid into one

Pressure line, the spray head being connected to a cartridge as described above, the outlet of the

Cartridge for mixing the first liquid into a liquid flow of the second conveyed through the pressure line

Liquid set up. Accordingly, the spray pump of the spray head and the conveyor of the cartridge

connected in parallel; d. H. they only convey the first liquid or the second liquid, the two

Liquids are mixed downstream of the spray pump and downstream of the conveyor.

Furthermore, the present disclosure relates to a spray bottle with such a spray head and with a second container for holding a second liquid, the spray pump being connected to the second container via a suction line, so that a second liquid accommodated in the second container can be conveyed with the spray pump and mixed with the first liquid. As long as the first container and the second container each contain associated liquids, such a spray bottle is ready for use.

Finally, the present disclosure also includes one

Use a cartridge as mentioned above with a

Detergent concentrate as the first liquid, and a use of a spray bottle as mentioned above, with a detergent concentrate as the first liquid and water as the second liquid. The detergent concentrate can

for example, a concentrate for cleaners for kitchen, bathroom, glass or all-purpose.

The present disclosure has the additional advantage of being a practical solution for using

Offers concentrates and thereby enables the

Plastic consumption for packaging materials compared to conventional ones

To significantly reduce packaging solutions. Due to the multiple usability (i.e. both for multiple functions and in terms of reuse) of one spray head and one

Spray bottle can save the materials required for separate spray heads and bottles. In addition, the ecological and economic disadvantages of the transport and storage of many spray heads and bottles are alleviated, because the weight and the space requirement are significantly lower with the same versatility.

The invention is explained in more detail below on the basis of particularly preferred exemplary embodiments, to which, however, it should not be restricted, and with reference to the drawings. The following show in detail:

Fig. 1 shows a cartridge with a coupling for mechanical energy transfer according to a first

Embodiment and a corresponding spray head;

FIG. 2 shows the cartridge and the spray head according to FIG. 1 in a connected operating position;

Fig. 3 schematically shows a longitudinal section of the cartridge and the spray head according to Figures 1 and 2 with a first Liquid and a second liquid;

Fig. 4 shows a cartridge with a coupling for hydraulic energy transmission according to a second

Embodiment and a corresponding spray head;

5 shows the cartridge and the spray head according to FIG. 4 in a connected operating position;

Fig. 6 schematically shows a longitudinal section of the cartridge and the spray head according to Figures 4 and 5 with a first

Liquid and a second liquid;

Fig. 7 shows schematically a front view of a third

Embodiment of a cartridge on a corresponding spray head;

8 schematically shows a longitudinal section of the cartridge and the spray head along the line VIII-VIII according to FIG. 7;

9 schematically shows a cross section of the cartridge and the spray head along the line IX-IX according to FIG. 8;

FIGS. 10a to 10c schematically show an enlarged view of the detail X according to FIG. 8 at three different times in a pump cycle;

11 shows a cartridge according to a fourth embodiment in a manner connected to a spray head

Operating position;

FIG. 12 is a schematic view of a cartridge according to Fig Getting Connected element 11 with an open _snap-V.

FIG. 13 schematically shows a top view of a transparent cartridge according to FIG. 11;

FIG. 14 schematically shows a longitudinal section of the cartridge according to FIG. 11 along the stepped cutting line XIV-XIV in FIG. 13;

15 schematically shows a longitudinal section of the cartridge according to FIG. 12 analogous to the longitudinal section according to FIG. 14;

16 schematically shows an oblique cross section of the cartridge according to FIG. 11 along the section line XVI-XVI in FIG. 14; and

17 schematically shows a longitudinal section of the cartridge according to FIG. 11 along the straight section line XVII-XVII in FIG. 13.

1 shows a cartridge 1 for detachable connection with a hand-operated spray head and a corresponding spray head 2. The cartridge 1 comprises a container 3, an outlet 4 (cf. FIG. 3), a conveying device 5 and a coupling 6. In addition, the Cartridge 1 an extension piece 7 for one Pressure line 8 of the spray head 2.

The conveying device 5 is a positive displacement pump, more precisely a reciprocating piston pump with a piston 9. It is for conveying a first liquid 10 from the container 3 to the outlet 4

set up. The clutch 6 is a mechanical clutch for connection to an actuating means 11 of the hand-operated spray head 2 and for energy transmission from the hand-operated spray head 2 to the reciprocating piston pump.

The cartridge 1 has snap connection elements 12 for detachable connection to the hand-operated spray head 2. The

Snap connection elements 12 are arranged on a rear side 14 of the cartridge 1 opposite the outlet 13 of the pressure line 8 of the spray head 2.

In the operating position shown in FIG. 2, the cartridge 1 is connected to the spray head 2. The spray head 2 comprises a spray pump 15 for sucking in a second liquid 16 and dispensing the second liquid 16 into a pressure line 8. The outlet 4 of the cartridge 1 is for mixing the first

Liquid 10 is set up in a liquid flow 17 of the second liquid 16 conveyed through the pressure line 8.

The mechanical clutch 6 comprises at least one clutch spring 18 (or leg), which here with a trigger spring 19 of the

Spray head 2 is positively connected. The trigger spring 19 is received in a groove 20 of the clutch spring 18.

3 shows the cartridge 1 according to FIGS. 1 and 2 connected to a spray head 2. A first liquid 10 is received in the container 3. The suction line 21 of the reciprocating pump is connected to an opening 22 in the bottom of the container 3.

By actuating the actuating means 11, the trigger spring 19 is bent upwards in the direction of the container 3 of the first liquid 10, as a result of which the clutch spring 18 moves the piston 9 in

Presses essentially vertically in the direction of the container 3 of the first liquid 10. The piston 9 compresses this

Volume of the internal reservoir 23 of the conveyor 5, whereby the increasing pressure leads to the fact that the End of the check valve 25 facing the outlet channel 24 bends upward in the direction of the outlet channel 24, as a result of which the first liquid 10 located in the internal reservoir 23 is conveyed via the outlet channel 24 in the direction of the outlet 4.

At the same time, the increasing pressure ensures that

Check valve 25 presses against the opening of the suction line 21 and thus both the inflow from the container 3 of the first

Liquid 10 and the outflow into the container 3 of the first liquid 10 blocked.

When the actuating means 11 is omitted, the clutch spring 18 with the trigger spring 19 is returned to its starting position

pulled, whereby the piston 9 also back in its

Starting position is performed. The piston 9 gives that

Volume of the internal reservoir 23 of the conveying device 5 is free, as a result of which the resulting vacuum causes the end of the check valve 25 facing the suction line 21 to bend downward in the direction of the internal reservoir 23, as a result of which the first liquid 10 located in the container 3 is over the suction line 21 can flow in the direction of the internal reservoir 23. At the same time, the suppression ensures that the check valve 25 presses against the opening of the outlet channel 24 and thus blocks both the backflow from the outlet channel 24 and the outflow of the first liquid 10 located in the internal reservoir 23 into the outlet channel 24.

The second embodiment shown in FIGS. 4 to 6 is based on a different type of conveying device 26

Avoid repetitions with regard to

Similarities with the first embodiment according to the

Figures 1 to 3 use the same reference numerals and reference is made to the above statements.

In the second embodiment, the conveying device 5 is a hydraulically articulated diaphragm pump 26. The coupling 6 is a hydraulic coupling 27 for connection to a pressure line 8 of the manually operated spray head 2. As can be seen in particular from FIG. 6, the hydraulic coupling 27 is in the

Extension piece 7 provided. In addition, in

Extension piece 7 downstream of the hydraulic clutch 27 a taper 28 is provided in the extended pressure line 29 to increase the pressure acting on the membrane 30

increase .

By actuating the actuating means 11, pressure is built up in the pressure line 8 and the hydraulic coupling 27 branching off with the aid of the spray head pump 15, as a result of which an elastic membrane 30 of the membrane pump 26 expands upward in the direction of the container 3 of the first liquid 10. The volume of the internal reservoir 23 is the

Conveying device 5 compresses, whereby the increasing pressure causes the end of the check valve 25 facing the outlet channel 24 to bend upwards in the direction of the outlet channel 24, whereby the first liquid 10 located in the internal reservoir 23 is conveyed via the outlet channel 24 in the direction of the outlet 4 becomes. At the same time, expanding membrane 30 and the associated increasing pressure ensure that the

Liquid 10 and the outflow into the container 3 of the first liquid 10 blocked.

When the actuating means 11 is omitted, the

elastic membrane 30 back to its starting position, whereby the volume of the internal reservoir 23 of the conveying device 5 is released, whereby the resultant negative pressure leads to the end of the check valve 25 facing the suction line 21 downward in the direction of the internal one

Reservoirs 23 bends, which in the container 3 above

located first liquid 10 is sucked via the suction line 21 in the direction of the internal reservoir 23. The membrane 30 thus acts as a reset element. At the same time, the

Suppress that the check valve 25 presses against the opening of the outlet channel 24 and thus blocks both the backflow from the outlet channel 24 and the outflow of the first liquid 10 located in the internal reservoir 23 into the outlet channel 24.

7 shows a front view of a third embodiment, a cartridge 1 being detachable with a hand-operated spray head 2 is connected. The front view shows the container 3, the mouth of the extension piece 7 and the coupling springs 18 of the cartridge 1. In this view, the actuating means 11 in the form of a trigger lever and the screw cap 31 can be seen in particular from the spray head 2.

As can be seen more precisely in FIG. 8, the conveying device 5 is in this embodiment as a reciprocating piston pump 32 with a

Piston 9 formed. The piston 9 has a sealing body 33. The sealing body 33 is generally cylindrical, with a concave, inwardly curved jacket.

Due to this shape, the upper edge and the lower edge of the sealing body 33 form sealing rings which seal the internal reservoir 23. For this purpose, the sealing body 33 can be made of a soft, elastic material (e.g. rubber) compared to the rest of the cartridge 1. In order to reduce the friction between the sealing body 33 and the wall 34 of the internal reservoir 23 (also cylinder or pump cylinder) in this connection, the sealing body 33 is objected to by the wall 34 in a central section due to its shape. The sealing body 33 of the piston 9 is plugged onto a guide body 35 and latched in (see FIG. 9). The guide body 35 is in the housing 36 of the cartridge 1 and on a bar 37 of the

Spray head 2 guided for movement parallel to the cylinder axis of the internal reservoir 23. The coupling springs 18 are connected in one piece to the guide body 35 and, in the operating position shown, are each hooked onto a trigger spring 19 of the spray head 2 (cf. FIG. 9). The two

Trigger springs 19 can be made as part of the actuating means 11 or as part of the spray head body 42.

In this example, the outlet channel 24 of the conveying device 5 has a hose section 38, which the

Connects conveyor 5 to the outlet 4 in the extension piece 7. The hose section 38 can from one to the

Stub 39, 40, flexible hose section 41

be educated. In the manufacture of the cartridge 1, the hose section 38 can be made in a separate process step, according to which e.g. one-piece impression of the container 3 with the

Extension piece 7 are made. The extension piece 7 extends a pressure line 8 of the spray head 2. The pressure line 8 is a piston pump 44 integrated in the spray head 2 (known per se and therefore for the sake of simplicity only indicated schematically as a solid black box)

assigned with which, when the actuating means 11 is actuated, a solvent is drawn in from a container (e.g. a bottle) connected to the screw cap 31 via a solvent suction line 45 and transported to the mouth 48 of the pressure line 8. The extended pressure line 29 in

Extension piece 7, into which the outlet 4 opens, consequently forms a mixing chamber in which the solvent (the second liquid) is mixed with that from the conveying device 5

conveyed first liquid 10 is mixed.

The outlet channel 24 and the suction line 21 are with one

Valve body 43 temporarily sealed, which with the

Spray head body 42 forms two check valves 25, which are explained in more detail in connection with the figures 10a-c.

The figures 10a-c show the detail X according to FIG. 8 in

various positions, namely in a first position shortly after the start of an intake process (see FIG. 10a), in a second position or rest position between an intake process and an exhaust process (see FIG. 10b), and in a third position shortly after the start of an exhaust process ( please refer

10c). In the first position and third position, the instantaneous direction of movement of the piston 9 is indicated by arrows 46, 47. The movement of the piston 9 changes the volume of the internal reservoir 23. This movement is finally transferred to the clutch springs 18, the clutch springs 18 and the associated guide body 35 by mechanical force transmission from the actuating means 11

Sealing body 33 reached. The internal reservoir 23 is fixed in the cartridge housing 36, which in turn is connected to the mouth 48 of the pressure line 8 via the extension piece 7 and to the spray head body 42 via the snap connection elements 12 and is attached to the spray head 2.

When the actuating means 11 is released, the trigger springs 19 relax and pull the piston 9 in the direction of Arrow 46 (see Fig. 10a). This increases the volume of the internal reservoir 23. The pressure thus falling or falling in the internal reservoir 23 leads to a pressure difference between the internal reservoir 23 and the container 3. The force acting on the hemispherical flap 49 of the valve body 43 due to this pressure difference lifts it from the

Mouth 50 of the suction line 21 and allows a portion of the first liquid 10 to flow out of the container 3 through the inlet valve 51 formed by the mouth 50 and the hemispherical flap 49 into the internal reservoir 23. At the same time, due to the lower pressure in relation to the outlet channel 24, the annular flap 52 in the manner of a duckbill valve against the

annular seat 53 of the outlet valve 54 is pressed and thus seals the internal reservoir 23 with respect to the outlet channel 24.

In the second position or rest position shown in FIG. 10b, the actuating means 11 is exposed to a maximum, i. H. from

Spray head body 42 complained. Accordingly, the internal reservoir 23 has its maximum volume in this position and is filled with the first liquid 10, for example. Both the inlet valve 51 and the outlet valve 54 are closed, so that the first liquid 10 in the internal reservoir 23

is included.

As soon as the actuating means 11 is actuated against the spring force of the trigger springs 19, the piston 9 is moved in the direction of the arrow 47 (cf. FIG. 10c). The volume of the internal reservoir 23 is thereby reduced. The pressure thus increasing in the internal reservoir 23 leads to a pressure difference between the internal reservoir 23 and the outlet channel 24. The force acting on the annular flap 52 of the valve body 43 due to this pressure difference expands the latter in the radial direction and thereby lifts it from the annular Seat 53 of the exhaust valve 54 and leaves the in the internal reservoir

contained first liquid 10 into the outlet channel 24

emerge. The first liquid 10 initially enters an annular section 55 of the outlet channel 24, from where it is directed in the direction of the outlet 4. At the same time, due to the higher pressure in the internal reservoir 23 compared to the container 3, the hemispherical flap 49 of the valve body 43 is pressed onto the mouth 50 of the suction line 21 and thus seals the internal reservoir 23 from the container 3.

As can be seen in particular from FIGS. 10a-c, the check valves 25, d. H. the inlet valve 51 and that

Outlet valve 54, arranged concentrically in the exemplary embodiment shown. This has the advantage of being even

Pressure distribution in the internal reservoir 23 and improved

Ultimately, the tightness of the piston 9 in the internal reservoir 23. The Duckbill-like design of the outlet valve 54 shown in this example offers a particularly reliable sealing of the cartridge 1 against an air inlet into the container 3, which could otherwise lead to overpressure in the container 3.

At the same time, the one-piece production of the

Valve body 43 low manufacturing costs of the cartridge 1.

A fourth embodiment of the disclosure is shown in Figures 11-16. This embodiment has many in terms of the basic functioning of the cartridge 1 and in terms of the valve mechanism of the conveyor device 5

Similarities with the third embodiment, which is used for

Avoiding repetitions cannot be described again in detail. The following detailed description is therefore

building on the previous description of the third

Understand embodiment and primarily highlights the main differences between the two embodiments. With regard to the similarities, the same reference numerals are used as in the previous one

Figure description used and it is based on the above

referred to more detailed explanations.

In contrast to the third embodiment, the cartridge 1 in FIG. 11 has a locking element 56 in the form of a pivotable one

Latch on. As can be seen more clearly from FIGS. 12 and 16, the locking element 56 has two snap hooks 57, which in FIG

Undercuts 58 can snap into the housing 59 of the cartridge 1. In the snapped-in operating position, the cartridge 1 can thus be locked on the spray head 2 and is thereby connected to the spray head 2. You can in

Blocking element 56 stops in the form of ribs 60 may be provided, which bear against a support surface 61 of the spray head 2 in the operating position and are supported there. At the same time, an upper part of the spray head is suitably received with a bar 62 in the housing 59 of the cartridge 1. The top of the

Spray head with the pressure line is thus essentially surrounded by the cartridge 1 and clamped therein in the operating position. To release the cartridge 1 from the spray head 2, the locking element 56 can be folded upwards in the direction of the housing 59 of the cartridge 1 by means of an actuating lever 63. The actuating lever 63 is flexible

Connection bar 73 connected to the housing 59. At the

Folding over the actuating lever 63 releases the snap hooks 57 against the restoring force acting on them due to the stops which are slanted inwards in the pivoting direction

Undercuts 58 from the housing 59 and thus release the previously locked back of the spray head 2. Subsequently, the rear side 14 of the cartridge 1 opposite the mouth 48 can be lifted off the spray head 2. A contact surface 64 of the coupling 6 of the cartridge 1 is removed from the trigger spring 19 of the spray head 2 (cf. FIG. 17).

The cartridge 1 can then be pulled forward from the mouth 48 substantially parallel to the pressure line 8 of the spray head 2.

In this example, a nozzle cap 66 is plugged on and snapped onto the mouth 65 of the extension piece 7 of the cartridge 1. The nozzle cap 66 has a functional flap 67 with a replacement nozzle 68. The replacement nozzle 68 can comprise, for example, an atomizer, which is otherwise one of the

Mouth 65 generated spray jet transformed into a spray when the functional flap 67 from that shown in FIG. 11

open position is folded down in front of the mouth 65.

It can be seen in FIGS. 14 and 15 that the container 3 of the cartridge 1 for receiving the first liquid 10 in this embodiment is displaced rearward relative to the conveying device 5 to the rear 14 of the cartridge 1 and in the upright operating position shown horizontally next to the conveying device 5 is arranged. With this arrangement, the construction height of the cartridge 1 above the spray head 2 can be reduced and essentially corresponds to the amount of

Conveyor 5. Accordingly, the suction line 21 rises from the opening 22 in the region of the bottom of the container 3 (i.e. the lowest point of the container 3 in an upright position)

Operating position of the spray head 2 with the cartridge 1) to the inlet valve 51 of the piston pump 32

Conveyor 5 out.

The housing 59 of the cartridge 1 is in this example

two parts, consisting of a lower part 74 and one

manufactured upper part 75 assembled. The two parts 74, 75 are tightly connected, for example by gluing.

On the outermost rear side wall of the container 3 in the longitudinal direction, it has a filling opening 69 with a

Cap 70, which permanently closes the container 3 of the cartridge 1 after being filled with the first liquid 10.

With regard to the conveyor 5, the fourth embodiment differs only slightly from the third

Embodiment. Specifically, the jacket of the sealing body 33, which is attached to a guide body 35 to form the piston 9, is formed with two annular sealing lips 71 which project in the direction of the reservoir 23. Furthermore, the substantially hemispherical flap 49 of the

Valve body 43 for forming the inlet valve 51 is held on three s-shaped, rotationally symmetrical suspensions 72, so that it is lifted from the mouth 50 of the suction line 21 parallel to the axis of movement of the piston 9 (see FIG. 16).

A bigger difference between the third and fourth

Embodiment exists with regard to the clutch. Here, as can be seen more clearly in FIG. 17, the coupling 6 in this variant is not formed by a coupling spring, but by the contact surface 64. In operation, the contact surface 64 rests on the upper side of the trigger spring 19 and is pushed in the direction of the trigger spring 19 a reset element 76 biased. In this example, the restoring element is designed as a curved leaf spring 77. The reset element 76 is by a

Energy transmission via the clutch 6 from the hand-operated Spray head 2 to the conveyor 5, more precisely a pressure from the trigger spring 19 on the contact surface 64, against one

Restoring force of the restoring element 76 from the starting position shown in FIG. 17 into a deflection position

deflectable. In the exemplary embodiment shown, the leaf spring 77 is more curved. Besides, that is

Reset element 76 set up while exercising

Restoring force from the deflection position into one

Return to the starting position and thereby drive at least part of a pump cycle of the conveyor device 5. This happens as soon as the user actuates the 11th

lets go, whereby the trigger spring 19 relaxes and yields downward and thus reduces the force exerted on the contact surface 64. The piston 9 of the conveying device 5 is fastened to the carrier body 78, which is mounted so as to be vertically displaceable in FIG. 17, between the restoring element 76 and the contact surface 64 and is therefore, under the action of the above-described forces, essentially that described in connection with FIGS. 10a to 10c Moves up and down, performing a pump cycle.

Claims

Expectations :

1. Cartridge (1) for releasable connection to a

manually operated spray head (2), the cartridge (1) comprising:

a container (3) for holding a first liquid, an outlet (4),

a conveying device (5) for conveying a first one

Liquid from the container (3) to the outlet (4), and

a clutch (6) for energy transmission from the

manually operated spray head (2) to the conveyor (5).

2. Cartridge (1) according to claim 1, characterized in that the conveyor (5) is a positive displacement pump.

3. Cartridge (1) according to claim 2, characterized in that the conveying device (5) has a reset element (76), the reset element (76) by energy transfer via the coupling (6) from the manually operated spray head (2) to the Conveyor (5) against a restoring force of the

Reset element (76) from a starting position in a

Deflection position can be deflected and is set up to return from the deflection position to a starting position while exerting the restoring force and to drive at least part of a pump cycle of the conveyor device (5).

4. Cartridge (1) according to claim 2 or 3, characterized

characterized in that the conveyor (5) a

Reciprocating piston pump with a piston (9), the clutch (6) being a mechanical clutch for connection to a

Actuating means (11) of the hand-operated spray head.

5. cartridge (1) according to claim 2 or 3, characterized

characterized in that the conveying device (5) is a hydraulically articulated diaphragm pump (26), the coupling (6) being a hydraulic coupling (27) for connection to a pressure line (8) of the manually operated spray head (2).

6. Cartridge (1) according to one of claims 1 to 5, characterized in that the cartridge (1) is an extension piece (7) for a pressure line (8) of the hand-operated spray head (2) having .

7. cartridge (1) according to claim 5 and claim 6, characterized in that the hydraulic clutch (27) in

Extension piece (7) is provided.

8. cartridge (1) according to claim 5 and claim 6 or 7, characterized in that in the extension piece (7) downstream of the hydraulic coupling (27) a taper (28) in the

extended pressure line (29) is provided.

9. cartridge (1) according to any one of claims 1 to 8, characterized in that the cartridge (1)

Has snap connection elements (12) for detachable connection to the hand-operated spray head (2).

10. cartridge (1) according to any one of claims 1 to 8, characterized in that the cartridge (1) at least one

Has locking element (56) for locking the cartridge (1) on the hand-operated spray head (2).

11. Cartridge (1) according to claim 9 or 10, characterized

characterized in that the snap connection elements (12) or the blocking element (56) are arranged on a rear side (14) of the cartridge (1) opposite the outlet (13) of the pressure line (8) of the spray head (2).

12. spray head (2) comprising a spray pump (15) for sucking in a second liquid (16) and dispensing the second

Liquid (16) in a pressure line (8), thereby

characterized in that the spray head (2) is connected to a cartridge (1) according to any one of claims 1 to 11, wherein the

Outlet (4) of the cartridge (1) for mixing the first

Liquid (10) is set up in a liquid flow of the second liquid (16) conveyed through the pressure line (8).

13. Spray bottle with a spray head (2) according to claim 12 and with a second container for receiving a second

Liquid (16), the spray pump (15) via a

Suction line is connected to the second container, so that a second liquid received in the second container can be conveyed with the spray pump (15) and mixed with the first liquid (10).

14. Use of a cartridge (1) according to one of claims 1 to 11 with a detergent concentrate as the first

Liquid (10).

15. Use of a spray bottle according to claim 13 with a detergent concentrate as the first liquid (10) and water as the second liquid (16).