EP0714253B1 - Dispenser for liquid disinfectants, surfactants and the like - Google Patents

Abstract

PCT No. PCT/DE94/00958 Sec. 371 Date Feb. 20, 1996 Sec. 102(e) Date Feb. 20, 1996 PCT Filed Aug. 18, 1994 PCT Pub. No. WO95/05110 PCT Pub. Date Feb. 23, 1995Usual liquid soap dispenser and the like are surface-mounted on the wall of a sanitary area and have an electrically or mechanically driven liquid pump, for example a swiveling lever. Besides the liquid pump, a sufficiently large liquid container must be arranged in the housing of the liquid soap dispenser, so that the liquid soap dispenser is bulky and more susceptible to soil and aging in the wet area. A liquid dispenser to be mounted in the wall is to be arranged as a unit behind a tile, so that the liquid container may swivel together with the tile. By actuating a bellows at the top side of the tile, pressure is applied on the liquid container, and liquid soap is ejected through an outlet. The liquid container associated to the tile is forcibly small. The distribution of small portions of liquid soap is thus not ensured. According to the invention, the dispenser (1; 133) is constituted of an elongated built-in housing (10; 110) that can be inserted into a cylindrical drilled hole (26), and of an elongated unit that may be slid for the most part into the built-in housing (10, 110). This elongated unit has a first slide in section (11; 130) with a reservoir (2, 3; 102) and a dosing pump (7; 107), and a second outer section with a mechanical pump drive (9; 129) with a push button (37, 74). The second outer section is integrated into an outer panel (5; 105) that cover the built-in housing (10; 110) in the wall.

Description

Technical field

The present invention relates to a dispenser for liquid disinfectants, liquid surfactant products such as liquid soap, hand lotion, shower gel, care shampoo for hair, or for other liquids with at least one storage container and at least one liquid outlet opening, with at least one between the storage container or containers (n ) and the respective liquid outlet opening, which pressurize the liquid with the pump unit, and furthermore with a housing part which accommodates at least the storage container or containers, the dispenser being designed as a structural unit which can be inserted into a wall installation opening.

State of the art

A dispenser for liquid soap and the like is known from DE 35 05 893 A1 . The dispenser can be mounted in the sanitary area on the outer wall next to a sink and the like. It consists of a housing in which a storage container for the liquid is provided. A peristaltic pump is used as the metering pump for the liquid, the outlet of which passes over a hose in a substantially horizontally projecting handle which serves as a pivoting lever for a mechanical drive of the peristaltic pump. Alternatively, the drive is provided with a foot pedal.

The liquids can be dispensed in evenly portioned quantities using the mechanical drive of the peristaltic pump, which is constructed in a simple manner.

From US-A 3187 954 a generic dispenser for liquid soap is known, which has a cuboid shape and can be inserted into a corresponding cuboid wall opening with a corresponding wall installation housing. A cuboid-shaped tank which is open at the top and is connected to a front closure plate with dispenser head and liquid outlet opening is then inserted horizontally into this wall-mounted housing. If necessary, dispenser liquid, namely liquid soap, is refilled into the open tank after the tank has been pulled out of the wall mounting housing. The pull-out tank is releasably locked in the wall installation housing. Due to the open design of the storage container, it can easily become dirty and is exposed to contamination. The subsequent production of rectangular cuboid wall openings for inserting dispensers in accordance with US Pat. No. 3,187,954 is complex, particularly in the case of tiled walls.

DE 32 13 240 A1 discloses a dispenser for dispensing liquid soap in a metered manner, in which the user must bring his hands into the area of the outlet nozzle. Then an electr jumps over a proximity switch. Drive of the metering pump and causes a single or multiple dispensing of a metered amount of soap. In this respect, the dispenser requires an electrical voltage connection at the installation site. This and the electronics used in the dispenser must be particularly protected against moisture to avoid a short circuit and a possible fire of the device. Such a dispenser must therefore be placed at a sufficient distance from taps.

These known devices for dispensing liquid soap and the like are disadvantageous insofar as they have to be accommodated in a relatively large housing with the storage container, the liquid pump and its drive, which is to be adequately dimensioned for a longer period of use and which is located in the sanitary area on the tiled walls can only be installed in surface mounting. Only rarely is there a protrusion on the tiled walls, so that the housing is discreetly placed in a niche. The underside or top of the device must be freely accessible so that the swivel lever attached to the device with the outlet for the liquid soaps or the foot lever provided there or the outlet nozzle there with the proximity switch applied laterally is freely accessible.

The dispenser housing is strikingly attached to the wall and blocks space in the pool area for the attachment of other sanitary facilities. The dispenser housings made of stainless steel sheets or enamelled sheets are exposed to increased soiling and aging in the wet area and are often not in a hygienically perfect condition even when manufactured from easy-care materials. There is a risk that the dispenser housing will dent or be damaged in some other way or even willfully be torn off the mounting wall.

According to DE 93 06 291.5 U1, a liquid soap dispenser is already known which, combined with a square wall tile, is designed behind this as a unit which can be removed from the wall. The tile is rotatably mounted in the dispenser frame inserted into the wall. The upper part of the tile to be pressed into it compresses a bellows, which generates the pressure necessary to push the soap out of a container which is attached to the back of the tile and can be pivoted with it, while the lower, automatically protruding part of the tile releases the opening of the dispenser.

In accordance with the usual dimensions of rectangular tiles, the dispenser frame has an opening cross section of 10 to 15 cm in length and height. The container, which is arranged as a pivotable unit with the tile, has only a small depth and is chamfered in the lower region in order to allow the lower part of the tile to emerge from the dispenser frame. The volume of the container is thus small, with a non-drip Closure of the outlet opening inserted on the underside of the container is to be produced by a sealing rubber. Especially when the dispenser is retrofitted, the necessary installation opening with a rectangular cross-section must be precisely lifted, with the risk that lateral tiles must be damaged and thus relocated.

Task and solution

It is therefore an object of the present invention to improve these known dispenser devices in such a way that a compact dispenser is provided which, with the provision of an easily accessible, hygienically flawless dispensing device, can be accommodated in a relatively small installation recess and remains easily accessible for service remains.

The part of the dispenser to be placed in the wall installation opening should be designed in such a way that it can largely be introduced into the exception of one or more cylindrical core drill holes which merge into one another and which, in particular, can also be easily retrofitted in the wet area to already tiled walls without damaging the lateral tiles, and this at a depth over a large part of the given wall thickness.

This task is solved by training a donor according to Claim 1, wherein advantageous training of the donor acc. result from the subclaims.

The dispenser according to the invention therefore requires the previous one at the intended fastening point in the wall or subsequent installation of an installation recess, which is to be dimensioned in accordance with the dimension of the wall installation housing to be used, which as such is designed for storing an installation section of the dispenser designed as a compact, elongated unit with one or more storage containers and / or the required metering pump and its drive, with a suitably dimensioned dispenser cylindrical receptacle is provided. This unit is designed as a sanitary installation element, and can either be externally with one or more dispenser heads with the pump unit and / or. the liquid outlet openings provided for the various storage containers or with the formation of an access gap which opens freely outwards in the lower region of the wall mounting housing with one or more liquid outlet openings arranged there. Since the liquid outlet openings are protected from the outside and placed on the underside of the dispenser heads, the liquid is dispensed hygienically and easily accessible. The outer panel covers the sanitary installation element introduced into the wall installation housing. Even when the outer panel is fitted with one or more outer axially projecting dispenser heads for receiving and / or engaging the outlet nozzles and / or liquid outlet openings, it is possible to largely integrate them in a flat or slightly curved outer panel of the wall-mounted housing. The outer panel, which protrudes only slightly to the outside, is only exposed to slight soiling and, if this should become necessary, can be cleaned at the same time as the neighboring mirror, tile and other wall areas of the wet area.

By inserting and fixing a large part of the dispenser as a sanitary wall installation element in a compact, elongated design with the wall installation housing surrounding it in an installation opening, the installation opening to be created can be designed with a relatively small opening cross section. While the wall installation housing is permanently fixed in this elongated installation opening, the fixing of the sanitary wall installation element in the wall installation housing takes place via easily detachable connecting means, so that the removal of the entire dispenser except for the wall installation housing e.g. after a simple unlocking of the connecting means by pulling out of the installation opening.

In the case of a defective dispenser, it is possible to replace the wall installation element with storage container, dosing pump and electrical or mechanical drive pulled out of the installation opening as a whole for a new sanitary wall installation element or to refill the freely accessible storage container with liquid after removal of the wall installation element or by others replace filled storage containers. A claw lock or a bayonet lock can be used as a connecting means between the sanitary wall mounting element and the wall mounting housing. claims 11, 12 may be provided. Furthermore, a closure plate can be arranged behind the outer panel of the dispenser, with which the entire installation opening can additionally be covered to the outside (claims 8 and 13). To actuate the connecting means, a locking element can be placed on the back of the closure plate, which can be pivoted via an external actuating mechanism in such a way that it has outer latching claws in two opposite outer locking openings of the wall of the wall mounting housing engages and disengages.

By execution acc. Claim 13 is given an optimal mounting of the wall mounting element with respect to the wall mounting housing via the longitudinal sliding guide which is subsequently created, with easy removal and attachment of the wall mounting element being possible. The guide rails and / or webs so far created in the wall mounting housing can be gem. Claims 2 and 13 simultaneously represent longitudinal struts or profiles of the wall mounting housing, which connect two outer, curved, circular metal strips in the axial direction to form a cylindrical hollow body open to the lateral surface between these profiles. According to claim 1, the wall-mounted housing has an elongated cylindrical shape or is composed of several, partially staggered horizontal hollow cylinders, such a wall-mounted housing being insertable in a correspondingly staggered arrangement of horizontal core drill holes. Within this receptacle of the wall mounting housing are gem. Claim 1 or the storage container created, which complement each other to form a cylindrical tank or form an arrangement of two or more laterally interlocking hollow cylinders.

With such a construction of the wall installation housing, the sanitary wall installation element and that of the storage container arranged over a large part of the length of this wall installation element, the dispenser is compact and the installation opening is relatively small in size. The installation opening, the wall installation housing and the sanitary wall installation element are circular in cross-section or in the form of a segment of a circle. In contrast to, for example, a quadrangular design of the wall mounting element, practically the entire receiving space of the wall mounting housing can be used to arrange a wall mounting element with a correspondingly slightly smaller cross section due to the cylindrical design. The core drill holes can be easily created with appropriate drilling equipment in pumice walls, brick walls, but also in concrete walls. Such devices can also be used to drill tiled areas without damaging the adjacent tile area.

According to claim 3 it is provided that the pump housing receiving the pump housing of the wall mounting element outside the wall mounting housing, i.e. e.g. is arranged on the outside of a closure plate closing the installation opening there. The length of the pump unit can be dimensioned relatively small in the case of the liquid quantities to be dispensed in individual smaller portions, a length of the metering cylinder of approximately 2 cm with a diameter of approximately 1 cm being sufficient for a displacement pump in the form of a piston valve pump. Due to the design or external arrangement of the pump unit according to. The claims 3, 15, it is possible to largely create a large part of the sanitary installation element in the installation opening, the outwardly projecting part with its metering pump and a pressure or metering button being formed in a relatively short form.

Furthermore, the inside of the Closure plate of the wall mounting element a support plate angled by 90 ° is provided, which either serves to hold one or more storage containers or as such represents a wall area of a storage container itself. In this respect, there is a compact, stable design of the installation element and space-saving arrangement of the storage containers. The storage containers are also preferably individually detachably arranged on the carrier plate, the shape of individual cylinder segments which complement one another to form an elongated cylindrical tank. The storage containers can be fixed to one another by interlocking outlet nozzles and inlet openings. On the outside of the storage container or the carrier plate running perpendicular to the closure plate, the groove or tongues can be provided on the outside along the longitudinal edges to form the longitudinal sliding guide of the wall installation element. The arrangement of the storage containers to each other takes place according to. Claim 4 one above the other in such a way that the liquid flows largely automatically downwards via a lower liquid outlet created on the container bottom of the lowermost storage container via an adapter unit for the metering pump. In principle, according to Claim 5 use a wide variety of metering pumps, according to. Claim 6, a metering pump with a mechanical actuator and a piston pump (positive displacement pump) is provided. In order to drive the metering pump, the metering piston has to be displaced in order to carry out the suction and pressure stroke. This longitudinal displacement of the metering piston can take place by actuating a pushbutton which protrudes outwards from a dispenser head on a parallel guide, the pressure cylinder moves longitudinally in the longitudinal direction of the metering cylinder.

According to claim 9, an adapter unit with a check valve and a pressure relief valve is provided at the pump inlet and at the pump outlet of the piston valve pump. In this way it is achieved that in the pressure stroke the liquid is discharged to the outside via the liquid outlet opening of the dispenser and in the suction stroke, with the closure of this opening leading to the outside, only liquid can flow out of the storage container and the adapter unit leading there into the metering cylinder.

The formation of the pump unit acc. the claims 4 - 10 and the formation of the connecting and locking means acc. claims 11, 12 enables an extremely space-saving arrangement of the pump unit and the connecting and locking center on the front of the closure plate, which can be covered by an inconspicuous outer panel. In this respect, the storage containers of the sanitary installation element can essentially fill the entire cylindrical receptacle of the wall installation housing without having to create a pump unit or liquid outlet openings in the part of the installation element to be inserted itself or in an access gap to be arranged below it.
Metering pumps according to the invention are to be understood as positive displacement pumps with a metering cylinder or pump tube which holds a certain liquid volume and which is then displaced to a certain volume and dispensed.

Drawing description :

Fig. 1:

einen Längsschnitt durch den in einer länglichen, zylinderförmigen Einbauöffnung eingesetzten Spender, wobei sich seitlich rechts einer Verschlußplatte und einer diese abdeckenden Außenblende zwei Vorratsbehälter befinden, wobei auf einem unteren kleineren, eine horizontale Trägerplatte bildenden Vorratsbehälter ein etwas größerer oberer Vorratsbehälter aufgesteckt ist, und wobei seitlich links der Verschlußplatte die Außenblende etwa ab dem mittleren Bereich nach unten in einen axial vorstehenden Ansatz ausläuft, welcher einen Spenderkopf bildet, in dem eine durch eine vordere Drucktaste bestätigbare Dosierpumpe (Kolbenschieberpumpe) verdeckt angeordnet ist und aus welchem deren Flüssigkeit nach unten durch eine Flüssigkeitsauslauföffnung austritt. Die eigentliche Auslaufdüse der Dosierpumpe ist dabei durch den in der Außenblende als axial vorstehender Stutzen ausgebildeten Spenderkopf verdeckt, so daß eine Verschmutzung des Auslaufes der Dosierpumpe nicht stattfinden kann. In dem Spenderkopf ist dabei desweiteren ein auf der Außenfläche der Verschlußplatte verschieblich gelagerter Stellschieber aufgenommen, über welchen die Verriegelung von Verbindungsmitteln des sanitären Einbauelementes gegenüber dem Wandeinbaugehäuse betätigbar ist;

Fig. 2:

eine bloße Darstellung der seitlich links der Verschlußplatte angeordneten Pumpeneinheit mit dem auf der Vorder- und Rückseite der Verschlußplatte angelegten Betätigungsmechanismus für die Verbindungsmittel des Einbauelementes gegenüber dem Wandeinbaugehäuse unter gleichzeitiger Darstellung des unteren, rechts der Verschlußplatte fest angelegten Vorratsbehälters in Längsschnitt;

Fig. 3:

eine Aufsicht auf die als Trägerplatte ausgebildete Oberseite dieses unteren Vorratsbehälters auf die Verschlußplatte und ein auf deren Innenseite angeordnetes Verriegelungselement;

Fig. 4:

eine Vorderansicht der Außenseite der Verschlußplatte unter Darstellung des auf dieser zur Entriegelung oder Verriegelung der Verbindungsmittel längsverschieblich angeordneten Stellschiebers, welcher im unteren Bereich mit einem abgewinkelten gabelförmigen Endstück um ein zum Pumpengehäuse führendes Zwischenstück geführt und am unteren Ende als Drucktaste ausgebildet ist;

Fig. 5:

eine Rückansicht der Verschlußplatte gem. Fig. 4 unter Darstellung eines aus einem horizontal angeordneten, abgebogenen Draht gebildeten Verriegelungselementes, welches seitlich außerhalb jeweils in einen in der Wandung des Wandeinbaugehäuses eingreifenden Rastnocken ausläuft und dabei über einen in der Mitte durch ein Langloch der Verschlußplatte geführten Ansatz zum auf der Vorderseite geführten Stellschieber geführt ist und dabei mit diesem dort in Eingriff steht;

Fig. 6:

eine Rückansicht auf die Verschlußplatte gem. Fig. 5 entsprechend einem Schnitt durch die Einlauföffnung des unteren Vorratsbehälters unter Darstellung der Anordnung des sanitären Einbauelementes innerhalb des äußeren Wandeinbaugehäuses, der durch Strichelung angedeuteten Wandung der Einbauöffnung und der gegenüber der Verschlußplatte seitlich radial nach außen vorstehenden Außenblende mit im unteren Bereich als vorstehenden Stutzen eingeformten Spenderkopf;

Fig. 7, Fig. 8:

eine Seitenansicht und Stirnansicht des als Nachfülltank verwendeten oberen Vorratsbehälters;

Fig. 9:

eine Draufsicht auf den gleichzeitig als Träger für den oberen Vorratsbehälter dienenden, im Gegensatz zu Fig. 2 und 3 auswechselbaren, unteren Vorratsbehälter, wobei in Fig. 8 und 9 jeweils die Anlage des in die Einlauföffnung des unteren Behälters einzusteckenden Auslaufstutzens des oberen Behälters wiedergegeben ist;

Fig. 10, Fig. 11:

eine Stirnansicht und eine Seitenansicht des aus Profilstegen gebildeten Wandeinbaugehäuses;

Fig. 12:

eine Vorderansicht der Außenblende mit einem im unteren Bereich mittig angeordneten Spenderkopf mit einer Aufnahme für die Drucktaste der zu verwendenden Kolbenschieberpumpe;

Fig. 13:

eine Seitenansicht dieser Außenblende gem. Fig. 12 und

Fig. 14:

eine Unteransicht dieser Außenblende gem. Fig. 12 mit der Darstellung der im axialen Außenbereich angeordneten Flüssigkeitsauslauföffnung sowie eines Öffnungsschlitzes zur Einbringung eines den Stellschieber der Verbindungsmittel zu deren Entriegelung verschiebenden Metallsteckschlüssels;

Fig. 15:

eine Seitenansicht einer in einer bevorzugten Ausführungsform des Spenders gem. Fig. 17 zu verwendenden Kolbenschieberpumpe mit Schlauchventil, teilweise im Längsschnitt;

Fig. 16:

eine Darstellung der Kolbenschieberpumpe gemäß Fig. 15 unter zuzätzlicher Darstellung der Lagerung der Zugfeder zur Rückholung der Pumpenmanschette im Saughub und der dabei im Pumpenrohr angesaugten Flüssigkeit;

Fig. 17:

eine bevorzugte Ausführungsform des Spenders teilweise in Längsschnitt und Seitenansicht.

The construction and installation of the dispenser designed as a wall-mounted device is explained in more detail below using two exemplary embodiments with reference to the drawing. In the drawing:

Fig. 1:

a longitudinal section through the dispenser used in an elongated, cylindrical installation opening, two storage containers being located to the right of a closure plate and an outer panel covering this, a slightly larger upper storage container being plugged onto a lower smaller storage container forming a horizontal support plate, and being to the side To the left of the closure plate, the outer panel runs downward from approximately the middle area into an axially protruding attachment, which forms a dispenser head in which a metering pump (piston valve pump) which can be confirmed by a front pushbutton is concealed and from which the liquid emerges downwards through a liquid outlet opening . The actual outlet nozzle of the metering pump is covered by the dispenser head formed as an axially projecting nozzle in the outer panel, so that contamination of the outlet of the metering pump cannot take place. In the dispenser head, an adjusting slide is slidably mounted on the outer surface of the closure plate, via which the locking of connecting means of the sanitary installation element with respect to the wall installation housing can be operated;

Fig. 2:

a mere representation of the pump unit arranged laterally to the left of the closure plate with the actuating mechanism applied to the front and rear side of the closure plate for the connecting means of the installation element relative to the wall mounting housing while simultaneously showing the lower storage container firmly attached to the right of the closure plate in longitudinal section;

Fig. 3:

a plan view of the upper side of this lower storage container designed as a support plate on the closure plate and a locking element arranged on the inside thereof;

Fig. 4:

a front view of the outside of the closure plate showing the adjusting slide arranged thereon for unlocking or locking the connecting means, which is guided in the lower region with an angled fork-shaped end piece around an intermediate piece leading to the pump housing and is designed as a pushbutton at the lower end;

Fig. 5:

a rear view of the closure plate acc. Fig. 4 showing a locking element formed from a horizontally arranged, bent wire, which ends laterally outside in each case engaging in the wall of the wall mounting locking cams and thereby via a led in the middle through an elongated hole of the closure plate to the on Front guided slide valve is guided and is engaged there with this;

Fig. 6:

a rear view of the closure plate acc. Fig. 5 corresponding to a section through the inlet opening of the lower storage container, showing the arrangement of the sanitary installation element within the outer wall installation housing, the wall of the installation opening indicated by dashed lines and the radially outwardly protruding outer panel laterally with the closure plate with molded in the lower area as a protruding neck Dispenser head;

Fig. 7, Fig. 8:

a side view and end view of the upper reservoir used as a refill tank;

Fig. 9:

a plan view of the lower storage container, which at the same time serves as a support for the upper storage container and, in contrast to FIGS. 2 and 3, can be replaced, with FIGS. 8 and 9 respectively showing the system of the outlet connector of the upper container to be inserted into the inlet opening of the lower container ;

10, 11:

an end view and a side view of the wall mounting housing formed from profile webs;

Fig. 12:

a front view of the outer panel with a dispenser head arranged centrally in the lower area with a receptacle for the push button of the piston pump using;

Fig. 13:

a side view of this outer panel acc. Fig. 12 and

Fig. 14:

a bottom view of this outer panel acc. 12 shows the liquid outlet opening arranged in the axial outer region and an opening slot for introducing a metal socket wrench which displaces the adjusting slide of the connecting means in order to unlock them;

Fig. 15:

a side view of a in a preferred embodiment of the dispenser. 17 piston piston pump with hose valve to be used, partly in longitudinal section;

Fig. 16:

a representation of the piston pump according to FIG 15 with additional representation of the storage of the tension spring for retrieving the pump sleeve in the suction stroke and the liquid sucked in the pump tube.

Fig. 17:

a preferred embodiment of the dispenser partially in longitudinal section and side view.

The dispenser (1) for liquid soap and the like shown in FIGS. 1-14 consists of two superimposed storage containers (2, 3) for this liquid, a wall installation housing (10) which is fixed in a cylindrical installation opening (36), in which the dispenser (1) is to be installed, an outer closure plate (27), which extends over the end face (13) of the receptacle (26), made of a connecting means (24) in the form of a claw lock for fixing the closure plate (27) with the storage containers (2, 3) attached to this relative to the wall mounting housing (10), the locking of the connecting center (24) being able to be latched in and out via an external actuation mechanism applied to the front (55) of the closure plate (27) a pump housing (8) fitted outside the closure plate (27) with a metering pump (7) in the form of a piston valve pump. This pump unit (6) can be actuated by a mechanical drive (9) which is designed in the form of a pushbutton (37) with a parallel guide for displacing the metering piston (38) of the piston valve pump.

The pump unit (6) and the pump housing (8) are placed in an outer axially projecting dispenser head (14) which merges into an outer cover (5) which covers the entire closure plate (27) to the outside.

The two storage containers (2, 3) can be fixed relative to a carrier plate (28), these being connected to one another via an outlet connection (31) of the upper storage container (3) engaging in an inlet opening (32) of the lower storage container (2). The Carrier plate (28) is fastened together with the storage container (2) to the rear of the closure plate (27). To the front (55) of this closure plate, the pump housing (8) is fastened via an intermediate piece (56) to the closure plate (27) and thus to the carrier plate (28) and the two storage containers, so that these parts form a unit.

The cylindrical opening (36) in the masonry is designed as an elongated core drill hole, the wall mounting housing (10) having a corresponding shape. This can be centered within the cylindrical opening (36) by means of tabs (25).

The wall mounting housing (10) forms as in the front view and side view. 10 and 11 reproduced a cylindrical elongated receptacle (26), in which the part of the dispenser (1) on the right of the closure plate (27) with the storage containers (2, 3) is applied to the longitudinal sliding guide (18) applied to the inner wall (17). and the connecting means can be inserted.

The dispenser (1) can be pulled out as a compact, elongated structural unit together with the front pump housing (8) and the outer pushbutton (37) from the receptacle (26) of the wall-mounted housing, the outer panel (5) with the dispenser head and molded therein the closure plate (27) carrying these parts is to be loosened. In this respect, the connecting means (24) must be unlocked.

By the pump housing (8) is arranged outside the closure plate, there is the advantage that the length of the can be shortened in the masonry installation opening and thus also the length of the wall installation housing (10). Depending on the thickness of the masonry, the section of the section of the sanitary installation element to be fitted in the wall installation housing (10) can be of different lengths. It can also be provided that the pump housing is integrated within the storage container (2, 3) and thus, except for the outer pushbutton (37) and the outer panel (5) surrounding it, is fully installed in the wall-mounted housing (10) or in the masonry Installation opening is added.

Since in the present exemplary embodiment the pump housing (8) is placed on the underside of the closure plate (27), the dispenser head (14) formed in the outer panel (5) can, according to FIG. Fig. 12, 13, 14 run out as an axially projecting approach with slight curvature in the surface of the outer panel, while on the underside of the dispenser head this goes straight into the 90 ° folded side edge of the outer panel (5).

The liquid outlet opening (4) is created on this underside, the outlet nozzle of the piston valve pump (7) being guided directly up to this liquid outlet opening (4).

Since all parts except the push button (37) of the dispenser (1) are covered by the outer panel (5), the closure plate (27) and the dispenser head (14) formed on the outer panel, this results in a hygienically perfect dispensing of the liquid soap , the outside of the dispenser being easy to keep clean. The dispenser designed as a sanitary installation element (11) easily accessible, it is sufficient to refill the liquid by actuating an external adjusting mechanism (47, 53) so that the connecting means (24) are released from the wall-mounted housing. A tight, stress-free installation of the sanitary installation element (11) into the wall installation housing (10) is possible via a sealing ring placed on the back of the closure plate (27), which comes to lie outside the installation opening on the wall wall surrounding it there.

To maintain the pump unit (6), only the outer cover (5) with the molded dispenser head (12) and the closure plate (27) has to be loosened and the sanitary installation element (11) pulled out of the wall installation housing (10). The storage containers (2, 3) and the closure plate (27) and carrier plate (28) are made of plastic. While the lower storage container (2) should always be filled for safety, the upper storage container (3) is provided as a refill tank, which has the largest holding volume. The storage containers (2, 3) are connected to the metering pump (7) designed as a piston valve pump via the liquid outlet (34) placed on the container bottom (33). A pump housing (8) is mounted on the closure plate (27), which forms an intermediate piece (56) for mounting the outer adjusting mechanism (47, 53) and the metering cylinder (39). The metering piston, which is longitudinally displaceable in this metering cylinder, is shifted against a compression spring (46) by adjusting the pushbutton (37). Since an adapter unit (35) with a check valve (42) is connected to the inlet in a connection bore (41) to the dosing cylinder and to the outlet in a connecting channel (44) to the liquid outlet opening (4) an adapter unit (43) with a pressure relief valve (45) flows during the suction stroke of the piston (38) liquid soap from the storage container (2) into the dosing cylinder (39), the pressure relief valve (43) is closed, and during the pressure stroke with the check valve (42) closed, the liquid soap received in the dosing cylinder via the pressure relief valve (43) and an outlet nozzle into the liquid outlet opening (4). It is possible to eject all of the liquid in the metering cylinder as a predetermined portion or only part of it.

In the present exemplary embodiment, the pump housing, measured from the liquid outlet opening (4) to the closure plate (27), has a length of 5 cm. The length of the actual dosing cylinder is 2.5 cm, with an opening cross section of 1.5 cm. The entire length of the sanitary wall mounting element is 18 cm, the length of the part inserted into the wall mounting housing being 12 cm. The wall mounting housing (10) has a diameter of 10 cm. The width of the carrier plate (28) formed by the lower storage container (2) is 8.8 cm.

The representation of the sanitary wall mounting element (11) acc. Fig. 2 corresponds to the representation acc. Fig. 1, the outer wall mounting housing (10) and the upper reservoir (3) are not shown for clarity.

The components are in this drawing with the reference numerals acc. Fig. 1 provided. In FIG. 3, the carrier plate (28) and the closure plate (27) with holding webs (62) arranged there for mounting the locking element (50) according to FIG. 5 can be seen in a top view.

On the front of the closure plate (27) is gem. 4 shows the adjusting mechanism (47, 53) for the connecting means (24) placed on the back of the closure plate for fixing the sanitary wall installation element in the wall installation housing (10).

An adjusting slide (47) is mounted on the flat front surface (55) of the closure plate (27) in a longitudinally displaceable manner in accordance with the elongated hole formed therein. Since the intermediate piece (56) leading to the dosing cylinder (39) is placed below the longitudinal guide of the adjusting slide (47), it is guided laterally downward around the intermediate piece (56) with a fork-shaped extension. The intermediate piece (56) acts as a stop for the setting slide (47). In it there is a prechamber (46) for a guide rod for adjusting the check valve (42). The connecting means (48, 49, 50, 51, 52) forming a claw lock is connected to the adjusting slide (47) via the wire-shaped locking element (50) placed on the rear side of the adjusting plate (27). The locking element (50) has an extension (53) in the middle, which extends through an elongated hole (40) of the closure plate (27) and comes into engagement with a corresponding guide of the closure plate (27).

The locking element (50) is designed in a length corresponding to the opening width of the receptacle (26) of the wall mounting element (10). The locking element (50) mounted on the closure plate (27) engages in locking openings (48, 49) on the inner wall (17) of the wall mounting housing (10) via outer locking claws (51, 52). These locking openings (48, 49) are in the front and side view of the wall mounting housing acc. 10 and 11 are reproduced. According to these figures, the wall mounting housing is formed from a basket-like metal cylinder which has an open end face (13) at the front and whose cylinder wall consists of two outer circular metal bands (21, 22) and these longitudinal struts (19a, 19) which are designed as guide rails. b) and other connecting webs and profiles (29, 30). At the end of the wall-mounted housing, it has a crosspiece in which a mounting hole is created. The spacer tabs (25) already mentioned are evenly applied to the outer wall (23) over the circular metal strips (20, 21).

The installation of the elongated sanitary installation element (11) within the wall installation housing (10) by means of a longitudinal sliding guide (18) is shown in FIG. 6. The guide rails (19a, b) which extend in the longitudinal direction on the inner wall (17) can be seen, which with a longitudinal receptacle guide outer webs (20a, b) of the sanitary wall mounting element (11), which are applied to the outer longitudinal sides (15, 16) there. Furthermore, the lower storage container (2) is shown with its inlet opening (32), as well as the attachment of the elongated wire-shaped locking element (50) of the claw lock (24) on the back of the lock plate (27). The pivotable or rotatable mounting of the locking element (50) takes place by means of a longitudinal web attached above and below it relative to the closure plate (27).

Outside the wall of the wall mounting housing (10) is the dashed line as the limitation of the core hole created installation opening indicated. Outside of this, the folded edge of the outer panel (5) and the dispenser head (14) molded in there are also shown with the pushbutton (37) guided therein.
The outer screen (5) shown in different views in FIGS. 12-14 has in the lower area a protruding nozzle (59) designed there as a dispenser head (14). The push button (37) for actuating the piston pump is slidably arranged in a circular opening (60) of the dispenser head.
The outer panel (5) has a bevelled circumferential edge piece (58) with which it is attached to the outer circumferential end face of the closure plate (27) (press fit).
In FIG. 14, a bottom view of the dispenser head (14) additionally shows the liquid outlet (4) near the opening (60) and an opening slot (61) near the edge piece (58), through which there is an inserted slot Socket wrench (63) of the adjusting slide (47) can be moved against spring force to unlock the locking claws (51, 52).

Instead of the piston valve pump (7) shown in FIGS. 1 and 2, the piston valve pump (107) shown in FIGS. 15, 16 and 17, which has a hose valve (64), is used for metering the liquid disinfectant and surfactant products of the dispenser. The piston slide pump (107) is like the piston slide pump (7) of the figure 1 and 2 can be arranged in a horizontal plane to the compartment floor, so at an angle of 90 ^o to Raumwandung with the inlet opening in the lower region of the reservoir (2) or the reservoir (102) according to the further embodiment of the dispenser according to FIG. 17, without the piston slide pump (107) being able to leak, despite the hydrostatic pressure of the liquid in the reservoir having an effect.

In this respect, even if the piston valve pump (107) is absolutely leak-tight, it should not be arranged vertically within the storage container (102) or laterally outside of it relative to the floor of the room. Conventional liquid pumps, on the other hand, must be installed in an "up-side arrangement" of the pump body, that is to say with an arrangement of the liquid valve in the upper region in or on the storage container, in order to achieve a high level of tightness.

According to FIG. 15, the hose valve (64) of the piston slide pump (107) consists of a valve body (65), the left cylindrical part (66) of which has two radial valve openings (84, 85) and an axial blind bore (86) that opens to the right. The valve opening (85) is covered in the drawing by the side with the valve opening (84). On the longer cylindrical one Part (66) is drawn on the outer surface over the valve openings (84, 85) opening there in the radial direction, an elastic hose piece (69) seated under pre-tension, which expands and overpressures within the blind bore (86) of the valve body (65) thus the hose valve (64) opens and closes below a pressure acting there or in the event of overpressure on its outside.

From the elongated cylindrical part (66) of the valve body (65) extends laterally in the longitudinal direction of a shorter cylindrical adjoining part (67), which is enlarged in radius compared to the cylindrical part (66) and thereby at the transition to the cylindrical part (66) with a circumferential stop surface, which is oriented perpendicular to the surface of the cylindrical part (66) and serves as a stop for the tube piece (69) applied over the entire length of the cylindrical part (66).

The larger diameter cylindrical part (67) has a radially projecting circumferential flange shoulder (68) on the right outer side, a wide concentric contact surface being formed on the right outer side of the valve body (65). This contact surface runs around the right opening of the blind bore (86) of the valve body (65) as the outer circular segment surface. The blind bore (86) is stepped inside the valve body (65) in the inside diameter, and has a cylindrical section of smaller diameter in the longer cylindrical part (66) and a shorter cylindrical second section inside the part (67) . It In this respect, a snap-in receptacle is formed within the blind bore (86) on the right, in which a pump sleeve (71) can be fastened with a plug-in attachment (73) that is centered on the left end face and tapers in diameter. The pump sleeve (71) has a concentrically circumferential end face on the side of the plug-in attachment (73), which comes to lie non-positively and liquid-tight against the outer bearing surface concentrically circumferential at the right end of the valve body (65).

The valve body (65) with the pump sleeve (71) fitted in this way is inserted into a lateral right opening at the end of a pump rod (70) of the piston valve pump (107). The pump rod (70) is designed as a delivery pipe with a continuous longitudinal bore (122) and widens at the right end to accommodate the valve body to form a step-shaped, concentrically rotating bearing bore for the outer diameter that adjoins the elongated free-standing cylindrical part (66) Part (67) of the valve body, on which the plug-in projection (73) and the outer cylindrical part (72) of the pump sleeve (71) are attached.

The part (67) of the valve body (65) comes into a force-fit connection in this bearing bore, a clamping fit of the desired strength being achievable by circumferential locking ribs on the inner surfaces of the bearing bore of the pump rod.

The valve body (65) and the pump sleeve (71) are aligned in the axial direction of the pump rod (70), the elongated cylindrical part (66) of the valve body (65) carrying the tube piece (69) freely projects into the pump rod, which is designed as a delivery pipe on the inside in the longitudinal direction, and the part (67) of the valve body widened in outside diameter in the bearing bore at the end of the pump rod ( 20) holds.

In order to produce an optimal hose seat, the elongated cylindrical part (66) is designed in different dimensions over its length. The section (67) of the valve body (65), which is widened in diameter and is also rotationally symmetrical, is initially followed by a section which is tapered in outer diameter compared to that of a following middle section, so that the tube section slides over the thicker middle section to prevent during the pumping process. At the end of the hose seat, the elongated cylindrical part (66) of the valve body (65) tapers in a truncated cone, the radial valve openings (84, 85) for the discharge of the pumped material being arranged in this area.

The pump rod (70) with the valve body (65) and the pump sleeve (71) mounted on its right end section in this way can be shifted to the right into a pump tube (76) into which the disinfectants and liquid surfactant products to be dispensed are adjusted with the pump sleeve (71) adjusted. be sucked in or spread out.

An actuating head (75) is firmly attached to the left end of the pump rod (70), the pump rod (70) being pressed to the right when the actuating head is pressed is moved in the longitudinal direction of the pump tube (76). This takes place with compression of a compression spring (78) which is clamped between a stop surface (79) placed on the right side of the actuating head (75) and a stop surface (77) formed on a left extension of the pump tube (76) (see FIG. 16) ).

In this way, the lateral right-hand region of the pump rod (70) with the valve body (65) and the pump sleeve (71) plugged there can be moved in the axial direction as a piston, with the pump tube (76) within this adjustment range has a cylindrical interior with a constant inner diameter.

While the pump rod (70) and the valve body (65) have a smaller outside diameter than the inside diameter of the interior in the adjustment range of the pump tube, the pump sleeve (71) widens laterally to the right of its cylindrical part (72) to a radially projecting conical section-shaped section, which with a concentrically circumferential collar (82) comes to rest on the inner wall (83) of the interior of the pump tube (76).

The collar lies tightly there so that no liquid can escape between the pump tube (76) and the pump rod (70) slidably mounted therein during the pressure and suction stroke of the piston valve pump (107).

A check valve (103) is located in the pump tube (76) at the end of the adjustment range of the pump sleeve (71). Arranged which, when pressure is applied to the interior of the pump tube (76), closes the latter with a closing body (80) which adjusts to the right into a valve seat (81), so that existing liquid cannot flow back into the reservoir (102) but through the longitudinal opening of the Sleeve (71) and the blind bore (86) and radial valve openings (84, 85), of the valve body under the outwardly widening hose section (69) are pressed into the longitudinal bore (122) of the pump rod (70) and thus via the actuating head ( 75) created outlet opening (104) is expressed.

As soon as the pump rod (70) is no longer pressed into the pump tube (76), it is pressed outwards by the expanded tension spring (78) together with the actuating head (75), so that a vacuum builds up in the interior of the pump tube (76) , and this and the overpressure of the liquid effective against the atmospheric pressure within the storage container (102) shifts the closing body (80) out of the valve seat (81) and thus opens the check valve (103).

New liquid thus flows from the storage container (102) into the interior of the pump tube (76), the pump tube in each case receiving a defined adjustable dosage amount of preferably 1-4 ml.

The pump sleeve (71) widens with its truncated cone-shaped collar (82) in the direction of the check valve (103), which is led up to the inner wall (83) of the interior of the pump tube (76) in order to have a wide, concentrically circumferential sealing surface against it to build. Through this outer seal and via the radial valve openings (84, 85) on the elongated cylindrical part (66) of the valve body, the elastic hose piece (69) achieves a great leak-tightness of the piston pump, so that it is even in a horizontal arrangement with the wall of the room Arrangement in the lower area of the storage container (102) withstands the hydrosstatic pressure of the liquid within the storage container which becomes effective even at a height of more than 20 cm.

The check valve (103) is arranged at the end of the adjustment range in the interior of the pump tube (76). The closing body (80) formed from an elastic plastic material has at the front section two cross-shaped centering plates (100) which are of such a length that they are used during the entire actuation of the piston pump to center the transition from the pressure stroke to the suction stroke projecting closing body through a central locking opening (118) of the valve seat (81), which is formed by a concentrically circumferential shoulder (120) projecting radially inward from the inner wall (83) and can be closed by a central truncated cone-shaped closing body section (101). At the left outer end, the shooting body (80) has a radially outwardly directed collar (109) starting from the central closing body section (101), which against a circumferential stop rib (121) starting from the inner wall (83) during the transition to the suction stroke Facility is coming.

The collar (119) is circumferential with individual ones provided openings which open as soon as the radially outwardly projecting collar (119) is no longer pressed against the concentrically circumferential, radially projecting shoulder (120) of the valve seat (81), which closes the openings of the collar (119) as a seal .

In the suction stroke, the closing body (80) only comes with an outer edge of the collar (119) against the circumferential stop rib (121), which protrudes radially only slightly, so that the openings in the collar (119) for the from the storage container (102) Liquid inside the pump tube (76) should remain open. The adjustment path of the closing body (80) is relatively short.

The piston valve pump (107) according to FIG. 15 is shown at the end of the suction stroke in FIG. 16, a closed drain of the longitudinal bore (122) being drawn off through the tension hose (78) in the pump tube (76) to the left through the blocked hose valve (64) ) Pump rod (70) liquid is sucked into the interior of the pump tube (76) via the opened valve seat (81) and the openings in the collar (119) of the closing body (80). The liquid is inside the pump sleeve (71) and the hose valve (64) and is in the pressure stroke when the pump rod (70) and the pump sleeve (71) move to the right over the adjustment range of the pump tube (76) through the bore of the Pump sleeve (71) and the blind bore (86) of the valve body (65) and the radial valve openings (84, 85) are expressed under the hose section (69) and via the pump rod (70), which is designed as a delivery pipe with the drain line (122), to the liquid outlet opening (104) directed.

In Figure 16, only the liquid level at the end of the suction stroke is shown. The pump tube (76) tapers laterally to the right of the valve seat (81) of the check valve on a pipe section to which a hose is attached, which is led directly into the reservoir (102) for the liquid, so that in this hose and pipe section There is liquid from the reservoir. In the illustration in FIG. 16, the actuating head (75), in contrast to FIG. 15, is drawn in cross section, the bearing of the compression spring (78) between the stop surface (77) on a left extension of the pump tube (76) and the stop surface ( 79) is shown, which is formed by the actuating head (75). It can clearly be seen the design of the drain line (122) of the pump rod (70) as a delivery pipe which merges downward to the left in the actuating head (75) via a downward channel into the liquid outlet opening (104).

According to FIG. 17, the pump pipe (76) comes to lie within the storage container (102) over its entire length, a screw connection (88) being provided in which a screw cap (123) projects radially on the outside of the pump pipe (76) , peripheral approach presses against the threaded connector (106) of the storage container (102). The screw cap has a circumferential pipe section (124) in the left area, which is guided over the tension spring (78) and comes to lie within the hollow actuating head (75) at a distance from the end face there, so that in the pressure stroke the actuating head (75) can be displaced to the right over this piece of pipe against the screw cap of the screw connection (88). The screw cap (123) designed as a union nut simultaneously defines the maximum displacement of the pump rod (70) into its left outer position at the end of the suction stroke, with a stop (125) against which the is placed in the screw cap (123) in the region of the inserted valve body (65), a section of the pump rod (70) with an enlarged outer diameter laterally abuts (see FIG. 15).

Preferred embodiment of the invention :

The preferred embodiment (133) of the dispenser for liquid disinfectants and liquid surfactant products shown in FIG. 17 has the piston valve pump (107) formed with a hose valve (64). There is again a cylindrical opening (36) in the masonry as an elongated core drill hole, into which an appropriately adapted wall mounting housing (110) can be inserted, which consists of plastic and is closed at the inner end via a rear end wall (87) and over two holes there (98.99) can be fastened. The cylindrical wall mounting housing, on the other hand, is open to the front over the entire cross section, so that the storage container (102) of the dispenser (133) made of plastic can be pushed into the wall mounting housing (110) from there. This front insertion opening (89) of the wall mounting housing (110) can be closed via an outer panel (105) which can be pushed over a locking collar (90) of the wall mounting housing projecting beyond the masonry to the side of the core borehole with a retaining collar (108) projecting radially to the right . The holding collar (108) has a central locking rib (126) which extends over a small angular section and projects inwards from the underside and which extends into a recess (92) in the peripheral circumferential direction of the projecting locking projection (90) of the wall mounting housing (110). can be introduced. The recess opens forward after a certain angular range, so that the locking rib (126) protruding from the holding collar (108) can be inserted and in the form of a bayonet lock by rotation in the circumferential direction of the core hole (36). extending recess (92) can be determined. (see opening (91) for widening the recess (92) towards the front left). From the outer panel (105), a holding cam (109) directed towards the storage container (102), which has a rib (111) running across its center, extends centrally on the inside at the level of the storage container (102). This rib (111) engages in a longitudinal slot (112) which is located in a bearing cam (113) which extends from the front end of the storage container in the center towards the holding cam (109). Since the appropriately dimensioned rib (111) of the retaining cam (109) thus engages in the longitudinal slot (112) after the outer panel (105) has been fitted onto the projecting edge of the wall mounting housing (110), and the rib (111) in the bearing cam (113) engages in a rotationally fixed manner, with the rotation of the holding collar (108) and guidance of the locking rib (126) into the recess (92) extending over an angular section, the storage container (102) is simultaneously rotated within the wall mounting housing (110).

Since in the right-hand section of the storage container in the cylindrical outer wall (93) there, over a certain length starting from the outer right end wall (87) of the storage container, a recess (94) opening into the left and molded into the container wall is created, into which it is inserted of the storage container, a latching cam (96) protruding laterally inwards from the inner wall (97) of the wall-mounted housing (110) is inserted, and the recess (94) at its end in a counter-rotating direction of the storage container (102) on the front end of the Wall recess housing goes over angled locking groove (95) takes place Simultaneously with the locking of the bayonet catch of the outer panel (105) on the front face of the wall-mounted housing, the bayonet lock designed in this way is locked at the end of the wall-mounted housing with respect to the end of the storage container (102) there. The front and rear bayonet catches in the wall mounting housing can thus be locked or released by a single rotation of the outer panel (105). The locking cam (96) on the inner wall (97) of the wall mounting housing (110) must have such a distance from the rear end (87.99) of the wall mounting housing that the hole (98.99) that the locking cam (96) in when the wall mounting housing is inserted Height of the locking groove (95) comes to rest and is thus rotated when the storage container (102) rotates from the recess (94) into the locking groove (95). The engagement of the locking groove (95) must be provided in such an angular position and depth on the outer wall of the storage container (102) that with the engagement of the locking cam (96) in the recess (94) the outer panel to be fixed relative to the storage container (102) 105) with the locking rib (126) protruding from the retaining collar (108) into the opening (91) of the recess (92) on the locking projection (90) of the wall mounting housing and tightening the locking cams (96) and the locking rib (126) simultaneously .

Two spaced circumferential guide beads (114, 115) are placed on the cylindrical outer jacket of the storage container (102). Through this, an optimal holding of the storage container (102) within the wall mounting housing (110) can be achieved. (light press fit). The guide bead (115) is in the area the recess (94) interrupted.

The storage container (102) is cylindrical in shape, but has two flattened lateral surface areas which extend over the entire length of the storage container. These serve as a guide for the storage container during filling, so that on a conveyor belt when filling the container with liquid the out-of-center drain in the storage container remains aligned in a predetermined position, so that the container does not rotate laterally on the conveyor belt.

Despite this flattened outer wall (93), it must be ensured that the storage container (102) can rotate in the wall mounting housing (110). The storage container (102) and the wall-mounted housing (110) are each round in cross-section such that these parts can be inserted into the core borehole or inside into the cylindrical wall-mounted housing. The length of the core drill hole is 10 - 15 cm. The parts of the piston valve pump (107) largely come to lie on the actuating head (75), the outer screw cap (123) and its lateral tube section within the wall mounting housing (110). The travel of the piston pump is relatively short for the intended dosing volume, so that the necessary travel of the pump rod (70) between the screw cap and the actuating head (75) is short. In this respect, the actuating head (75) projects only slightly with the part of the outer panel (105) that bulges around the outside toward the front over the wall area of the respective installation room.

To ventilate the storage container (102), an opening (116) is provided in the upper area on its left front end, in which an ventilation valve (117) is created, which opens when there is negative pressure in the storage container. It consists of two mutually resilient sealing pieces (127, 128) which extend inwards from an annular valve opening and which come to lie on top of one another like the upper and lower part of a duckbill. (Duckbill valve). This ventilation valve leads to the reservoir being aerated behind the piston valve pump (107) designed as a hose valve pump. Instead of the expression duckbill valve, the expression "DUCK-BILL" is also used. This ventilation valve (117) is inserted into the opening (116) in such a way that the valve protrudes in a beak-like manner, with a force exerting a force on the flap-shaped sealing pieces (127, 128) of the valve at a pressure which acts in the storage container at the top and bottom is and these are thus compressed until finally the sealing pieces move apart again due to a negative pressure in the storage container or an excess pressure outside the container. The ventilation valve (117) simultaneously provides protection against external contamination, vermin and also against drying out of the liquid filling material.

15 and 16, the pump drive (129) shown there, consisting of the actuating head (75), which is mounted in a longitudinally displaceable manner, the pump rod (70) and the compression spring (78), which is connected to the dispenser (133) End is supported on the stop surface (77,79) and thus after compression by moving the actuating head (75) and the pump rod (70) to the right, these parts are moved again to the left after releasing the actuating head. Corresponding to the pump unit (6) in the dispenser (1), which consists of the pump drive (9) and the piston valve pump (7), a pump unit (131) is thus formed, which consists of the pump drive (129) and the piston valve pump (107) and instead of being screwed to the closure plate (27) by the screw connection (88) relative to the wall mounting housing or the storage container.
The pump unit (131) is arranged horizontally on the bottom of the container, whereby the piston valve pump (107), which has a hose valve, is drip-tight in this position and comes as far as the pump tube (76), which enters the storage container (102) and its threaded connector (106 ) is inserted and thus form with them the section of the dispenser inserted inside the wall-mounted housing (110) (built-in element (130)), outside of which, below the molded-in dispenser head (132) formed in the outer panel (105).

Claims (19)

1. Dispenser (1, 133) for liquid disinfectant, for liquid surfactant products, such as liquid soap, hand lotion, shower gel, shampoo for the hair, or for other liquids with at least one supply container (2, 3; 102) and at least one outwardly projecting liquid outlet opening (4; 104) with at least one external actuating element (37; 75) for at least one mechanical pump unit (6; 131) that is located between the supply container or containers (2; 3, 102) and the respective liquid outlet opening (4; 104) for loading the liquid under pressure, and also with a wall installation housing (10; 110), which receives at, least the supply container or containers (2, 3; 102), with a section up to an outer section as an installation element (11; 130), by means of an open end (13; 89) of the wall installation housing (10; 110), can be inserted into and removed from the latter, and the installation element (11, 130) can be locked by means of releasable connecting means 24; 94, 95, 96; 91, 92, 126) externally, and with dispenser (1, 133) being designed as a module that can be inserted horizontally in a wall installation opening (36) characterized in that the wall installation housing (10; 110) has an elongate cylindrical shape or is assembled from a plurality of horizontal hollow cylinders partially staggered for insertion into a horizontal core-drilled hole or in a matching staggered arrangement of horizontal core drilled holes as a wall installation opening (36) and the dispenser parts, such as the supply container or containers (2, 3; 102) and the pump unit (6, 131) with the liquid outlet opening (4;104) to an elongate module are fixed and the supply container or containers (2,3) complement each other to a cylindrical tank or the tank formed by an individual supply container (102) has a shape of this kind, whereby the outer section of the module is formed by a sealing plate (27) and/or an outer diaphragm (5; 105) with one or more dispensing heads (14, 132) projecting axially outward therefrom.
2. Dispenser according to claim 1
   charaterized in that the wall installation housing (10), as an installation cage, consists of two outer circularly bent metal strips (21, 22) running in the circumferential direction and of a plurality of connecting ribs or shapes (19a, b; 29, 30), extending in the axial direction between metal strips (21, 22), or in that a hollow cylinder which is essentially closed up to its front end face is provided as a wall installation housing (110).
3. Dispenser according to one of the claims 1 or 2,
   characterized in that, in contrast to the supply container(s) (2,3; 102) located inside the wall installation housing (10; 110), the pump unit (6; 129) is located outside it and can be flanged or screwed as a module by means of an adapter unit (35) or directly to the outlet (34; 106) of supply container (2; 102).
4. Dispenser according to one of the claims 1 to 3,
   characterized in that the supply container or containers (2, 3; 102) is/are connected by means of a lower liquid outlet (34; 106) located on the bottom (33) of the container with the dispensing pump (7) whereby the latter is located in an essentially horizontal position in the vicinity of the container bottom with an overpressure valve (45; 64) which blocks the external liquid outlet opening (4, 104) at normal pressure.
5. Dispenser according to one of the claims 1 to 4,
   characterized in that a radial pump with a rotating rotor, a peristaltic pump, or a piston valve pump (7) is provided as a metering pump (7) for the liquid.
6. Dispenser according to claim 5,
   characterized in that rest-room installation element (11; 130) has a piston slide pump (7; 107) as the metering pump, whose metering piston (38; 65, 72) mounted displaceably lengthwise in a metering cylinder (39) or pump barrel (76) to perform the compression and suction strokes, engages the actuating element by lengthwise adjustment of said actuating element in the form of a pushbutton (37) or actuating head (75), and is displaceable and in that a mechanical actuating device with a pushbutton (37) or an acuating head (75) is provided as a pump drive (9; 129) of piston slide pump (7; 107) for emptying the metering cylinder (39) or pump barrel (76) of the piston slide pump that was filled during the suction stroke.
7. Dispenser according to claim 5
   characterized in that pushbutton (37) or actuating head (75) projects forward in a freely accessible manner in a dispensing head (14; 132) located outside wall installation housing (10; 110).
8. Dispenser according to one of the claims 1 to 7
   characterized in that external shield (5; 105) has a projecting stub molded in the lower area that is designed as a dispensing head (14; 132) and has an opening (60) for application of a pushbutton (37, 75) of metering pump (7, 107) and in that sealing plate (27) and/or outwardly projecting pump unit (6, 131) is covered by external shield (5; 105) which is angled or bent at the edge.
9. Dispenser according to one of the claims 5 to 8
   characterized in that piston slide pump (7; 107) is connected to lower liquid outlet (34; 106) of the supply container(s) (2, 3; 102) by an adapter unit (35) having a check valve (42; 103) in a connecting bore (41; 118) that connects to the supply container, with a prechamber (46) for valve adjustment or a pump barrel (76) that is extended over the adjustment travel of pressure piston (65, 72), with check valve (42; 103) closing during the compression stroke of metering piston (38, 65, 72) and opening mechanically or under a vacuum to connect metering cylinder (39) or pump barrel (76), and in that a connecting channel (44) is located in pump housing (8) or an additional adapter unit (43) for connecting metering cylinder (39) with liquid outlet opening (4) of dispenser (1), said channel having an overpressure valve (45) that opens during the compression stroke, said valve opening outward during the compression stroke in metering cylinder chamber (39) and in that an overpressure valve (64) is located in metering piston (65, 72) to connect pump barrel (76) with liquid outlet opening (104) of dispenser (133), said valve opening during the compression stroke and guiding the liquid to liquid outlet opening (104) through a pump rod of the metering cylinder, said rod being designed as a delivery tube.
10. Dispenser according to one of the claims 6 to 9
    characterized in that an arrangement consisting of a tube valve (64) and pump sleeve (72), is adjustable as a metering piston against a compression spring (78) in the cylinder chamber of a pump barrel (76) into the end position of the compression stroke, with the liquid being forced through tube valve (64) and against a check valve (103) that blocks the line to supply container (102) by means of an actuating head (75) that is displaceable lengthwise against the tensioning force of the compression spring and supports a pump rod (70).
11. Dispenser according to one of the claims 1 to 10
    characterized in that at least one bayonet connection (94, 95, 96; 92, 126) or a claw lock (48, 49, 50, 51, 52) operable only by lengthwise adjustment of an adjusting slide (47) abuts inside wall (17; 97) and/or a locking projecting (90), of wall installation housing (10, 110), said projection extending from installation opening (26), against external shield (5, 105) and/or sealing plate (27) as connecting means (24) for restroom installation element (11;130).
12. Dispenser according to claim 11
    characterized in that a bayonet connection (94, 95, 96; 92, 126) is provided on both a retaining collar (108) of external shield (105) and on the rear area of outside wall (93) of supply container (102), said connections being simultaneously lockable to wall installation housing (110) by rotation of external shield (105).
13. Dispenser according to one of the claims 1 to 12
    characterized in that a lengthwise sliding guide (18) is provided between outer lengthwise sides (15, 16) of installation element (11) and inside wall (17) of wall installation housing (10) and that guide rails (19a, b) and guide ribs (20a, b) of lengthwise sliding guide (18) are provided laterally to the right and left on the outside wall of one of supply containers (2, 3) or of a carrier plate (28) extending in the lengthwise direction of installation section (11) and supporting supply containers (2, 3) and of inside wall (17) of wall installation housing (10) abutting it on the right and left, respectively and that two installation elements are provided that are located opposite spaced connecting ribs (19a, b) with a lengthwise groove or tongue to form a lengthwise sliding guide (18) for the installation element that can be inserted into the wall installation housing.
14. Dispenser according to one of the claims 1 to 13
    characterized in that a plurality of locking elements that are adjustable radially outward, and/or spacing tabs (25) that point diagonally outward, project from outside wall (23) of wall installation housing (10).
15. Dispenser according to one of the claims 3 to 14
    characterized in that open end (13) of wall installation housing (10) that is open and serves as an insertion opening can be closed by a sealing plate (27) that supports supply container(s) (2, 3) and pump unite (6).
16. Dispenser according to one of the claims 1 to 15
    characterized in that supply container(s) (2, 3; 102) has/have a vent valve (117).
17. Dispenser according to claim 16
    characterized in that a duckbill valve is provided as a vent valve (117) in an opening (116) in the upper part of the front end wall of container (102).
18. Dispenser according to claim 1
    characterized in that the cylindrical shaped wall installation housing (110) is made of plastic and closed by a rear end wall (87).
19. Dispenser according to claim 1
    characterized in that from the external shield (105) internally and centrally at the level of supply container (102) a retaining cam (109) directed at the latter extends, said cam having a rib (111) extending transversely over its center, said rib engages a lengthwise slot (112) abutted by a bearing cam (113) extending centrally outward from the forward end face of the supply container in the direction of retaining cam (109).

Images