DE3143005A1 - Cleaning machine - Google Patents

Abstract

A cleaning machine, in particular for hoses (11) for use in laboratories or hospitals, has a rotatable drum (6) which has at least one plug-on or connection nozzle (9, 10) which rotates with the drum and can be connected to a cleaning water supply (2, 3, 4, 5). The cleaning water emerges from the plug-on or connection nozzle(s) (9) and flows through the hose or hoses (11) which are coiled around the outside circumference of the drum (6) and attached to it. The drum (6) is rotated during the entire cleaning operation by the water emerging at the other ends of the hoses (11) and, if appropriate, by additional rotating devices (12, 13, 14, 15). For a drying operation, filtered and, if appropriate, heated pressurised air from the plug-on or connection nozzles (9, 10) can be passed through the hoses (11). <IMAGE>

Description

dishwasher

The invention relates to a dishwasher for washing objects for laboratory and hospital use, especially of hoses, with at least a plug-on or connection arranged within a closable washing area nozzles for the objects to be washed, with the at least one slip-on or Connection piece can be connected to a flushing water supply and at least one Has water outlet nozzle.

When cleaning the inside of partially closed objects, such as hoses for laboratory and hospital use, the problem occurs that these After cleaning, the hoses still contain water that spills when taking it out of the dishwasher and increases as a result Contamination leads.

Especially with room-dividing machines, i.e. where you are on a "unclean" page and on a clean page that can even be aseptic, removes, such a spillage of water is not justifiable.

For rinsing and drying tubes such as anesthesia tubes In what is known as a folded hose design, a dishwasher is known in which the Hoses in a hanging state were driven into a washing room by means of a transport trolley and from above via a distributor trough and connection or push-on socket Rinsing water and cleaning fluid, as well as the air required for drying the hoses are passed through and led out downwards. Where is the length the hoses are of course limited.

In another known dishwasher, the hoses are on both ends put on a tube so that they form a "U". These Tube nozzles, some of which can be up to 600 mm long, have hole nozzles on the side, through which the hoses are completely rinsed on the inside. It is also possible, the hoses by means of compressed air, which exits through the nozzles, to dry. Here too, however, the length of the hoses is limited, namely by the length of the pipe nozzles (e.g. 2 x 600 mm = 1.3 m), as they are either no longer fit into the washing chamber or at the point where the nozzles meet the inner wall can no longer be reached, again not properly rinsed and dried.

The object of the invention is therefore to provide the dishwasher of the introduction mentioned type to the effect that also relatively long hoses can be cleaned properly and completely flooded after cleaning.

This object is achieved according to the invention in that the at least a slip-on or connection piece attached to a rotatable drum and with it is rotatable.

One end of the hose (s) is / are attached to the slip-on or connector plugged or connected to it and wound onto the drum. Rinse water then flows completely through the hoses from the nozzle, because the drum moves during rinsing - for example due to the recoil effect of the water exiting at the other end of the hose (s) - turns, it will Rinse water flushed out completely.

The drum can be a wire frame or a wire cage or take the form of a conventional washing drum of household washing machines.

A structurally particularly simple solution is achieved in that the at least one push-on or connection piece on one with the axis of rotation Drum aligned pipe is attached, this pipe being connected to the flush water supply is connectable.

A simple attachment of the slip-on or connecting piece to the Pipe is made possible by the fact that the axis of the push-on or connecting piece is perpendicular runs to the axis of the pipe.

For rinsing hoses with different diameters it is advantageous if the at least one slip-on or. Connection piece to the outside is conically tapered to a point. For flushing several hoses at the same time it is advantageous to provide several push-on or connecting pieces, the lengthways of the pipe are distributed. The individual push-on or connecting pieces can then have different diameters and / or different lengths.

According to an advantageous embodiment of the invention are on the drum several fastening devices for the objects to be cleaned or the hoses intended.

According to a particularly simple embodiment of the invention exist these fastening devices consist of clamps arranged on the outer circumference of the drum, into which the hoses can "snap". Are several push-on or connecting pieces used, they can be closed individually. However, it is also possible all slip-on or

Keep connecting pieces open all the time. It is only necessary to ensure that this is the case be that the flushing water pressure is high enough so that the connected hoses cleaned satisfactorily. The on the slip-on resp.

Connection pieces, to which no hose is connected, exiting Rinse water is then used to clean the outer surfaces of the hoses.

According to an advantageous development of the invention, an additional Rotary device provided, which drives the drum in the direction of rotation (additionally to the rotation of the drum by the described recoil effect of the exiting Rinse water).

This additional rotating device is based on a variant of the Invention from attached to the drum Shovels by one Water or air jet are flowed against it.

According to another variant, the drum is driven by a motor, for this purpose a motor-driven roller is provided which has an engagement surface can be brought into frictional engagement on the outer circumference of the drum. With another The drum can also be modified by a centrally acting drive, similar to a household washing machine, for which purpose, for example the tube has a driver which is connected to a motor drive.

According to the invention, all rotating devices have the option of to rotate the drum with at least two different drive speeds. This can cause water residues to be thrown out, thereby reducing the drying process can be improved and shortened.

Facilities are provided to improve the drying process, with which the slip-on or

Connection piece optionally flushing water or (preheated) compressed air is feedable. This compressed air is preferably fed into the compressed air supply via a switched on sterile filter filtered.

According to the invention, the drum can be any position within the Occupy the washing area, i.e. its axis of rotation can be horizontal, vertical or inclined be arranged.

In particular with a vertical or inclined arrangement, additional exploited gravity to drive the flushing water completely out of the hoses.

According to a further embodiment of the invention, the drum is displaceable stored, the or the push-on or connecting piece in the inserted Position of the drum with the rinsing water and, if necessary, compressed air supply can be connected automatically, so that the hoses can be loaded or removed the drum can be removed from the wash cabinet. Instead of the drum you can then other wash baskets with a rinse water connection can also be inserted. Through this the dishwasher can be used more universally.

According to a further variant of the invention, the dishwasher is the Invention with at least one additional rotating arm for washing the objects outside combined, this at least one rotating arm to the flush water supply and possibly connected to the compressed air supply. Such rotating arms are in themselves well known in dishwashers.

The materials used in the dishwasher inside the wash cabinet are high-temperature-resistant stainless steels or plastics that allow the wash cabinet heat up to a temperature of 50 to 950C, so that inside the dishwasher thermal disinfection can be carried out.

In the following the invention is based on an exemplary embodiment described in more detail.

The only FIG. 1 shows a perspective, schematic view the dishwasher according to an embodiment of the invention.

The dishwasher has a housing 1 with a lockable from the outside Wash cabinet. Via a circulation pump 2, which, for example, has an output of 500 1 / min brings, flushing water is pumped through a pipe 3 to a manifold 4. Under Rinse water is understood here to mean any type of cleaning liquid, such as e.g.

Water with detergent additives. The manifold 4 runs in the illustrated embodiment is approximately perpendicular and is close to a the side walls of the dishwasher. The manifold 4 has a contact piece 5, from which the rinsing water coming from the circulation pump 2 can emerge. A rotatable drum 6 can be connected to this contact socket 5, or more precisely a connecting pipe 7, which with an axial pipe 8, which is coaxial with the The axis of rotation of the drum 6 is connected. The axial tube 8 has at least one, but in the illustrated embodiment several push-on or connecting pieces 9, 10, each having at least one flushing water outlet nozzle. The rinse water thus arrives from the circulation pump 2 via the line 3, the manifold 4, the Connection piece 5, the connection pipe 7 and the axial pipe 8 to the slip-on or. Connection pieces 9 and 10. For the sake of clarity of the drawing, the further illustrated push-on or connecting pieces not with further reference numerals Mistake.

The rotatable drum consists in the illustrated embodiment from a cage which, in the vicinity of its two axial ends, points radially outwards Rods 16 'which are connected to one another via rings.

The radially outermost rings 16 are connected to one another via longitudinal bars connected and form the "outside" of the drum.

In the illustrated embodiment, a hose 11 is on the Push-on or connecting piece 9 is attached, from there to the outer circumference "of the drum 6 and then wound around the outer circumference of the drum 6. About fastening devices in the form of clamp fasteners 42 (only one of which is shown) is the Hose held on the drum.

If the rinsing water now flows out of the push-on or connecting piece 9, so it flows through the hose 11 and exits at its other end. Through the recoil effect of the escaping rinse water is the rotatably mounted drum set in rotation.

In addition, a rotating device is provided, which is shown in Embodiment from one arranged in the area of an axial edge of the drum 6 Engagement surface 12 for a roller 13 is made. The roller 13 is over a transmission belt 14 connected to a drive wheel 15 of a motor drive. The role 13 becomes pressed against the engagement surface 12, for example by spring force, and is displaceable arranged so that the drum 6 - as described below - removed can be. The rotating device is preferably at least two different The speeds can be switched, so that after the rinsing process, it may still be within remaining water can be ejected from the hoses.

The manifold 4 extends in the illustrated embodiment vertically upwards beyond the outer circumference of the drum 6 and is in the area its upper end connected to a compressed air supply. This compressed air supply has several high-pressure blowers 18, 18 ', 18 ", the air sucked in from the outside through a sterile filter 19 lead and lead to a controllable heating device 20. From there the flows heated and filtered air through an air tube 21 and is through a check valve 23 fed to the manifold 4. The check valve 23 prevents penetration of flushing water into the compressed air supply.

The circulation pump is of course used for the drying process 2 switched off, so that filtered and heated compressed air is then via the manifold to the slip-on or. Connection piece 9, 10 can reach, whereby the hoses blown out and dried. During the Drying process the drum 6 is rotated further by the rotating device described.

The individual push-on or connecting pieces are preferably according to conically tapered on the outside, so that hoses of different diameters can be connected. Elastic Hose clamps may be provided. It is also possible to use the individual slip-on or Connection pieces have different outside diameters and / or different lengths give.

The push-on or connecting pieces that are not required can each be closed individually. However, it is also possible to use all push-on or connecting pieces to leave open, so that on the unneeded push-on or connecting piece as well Rinsing water or

Compressed air can escape, which leads to external washing or

External drying of the hoses is used.

The from the hose ends or the free slip-on or. Connecting piece Exiting rinsing water is via a guide 26 arranged below the drum 6 sheet # caught and fed to a collecting container 24 on its entry side has a sieve 25. The circulation pump 2 is connected to this collecting container 24. Of course, a flushing water connection (not shown) also follows outside, for connecting the dishwasher to the water supply. In addition, cleaning fluid can be used are mixed in.

As already mentioned, the drum can be removed from the machine. For this purpose, a carriage 29 is provided, which via wheels 30 on running rails 31 or corresponding Tours running. This carriage 29 has two bearing arms 32 in which the drum 6 is axially supported. In addition, the carriage 29 has a tubular frame 33, at which several nozzle arms 34, 35 are connected.

Hollow objects such as test tubes, Breathing bags etc. can be attached.

The tubular frame 32 is via a further (not shown) connecting piece connectable to the manifold 4, whereby flushing water to the nozzle arms 34 and 35 can be performed. This tubular frame 33 is also attached to the carriage 29. For an additional washing system is provided for outside washing. This washing system contains an additional circulating pump which is also connected to the collecting container 24 36, which has an output of 250 1 / min, for example. At the output of this circulation pump 36 a pipe 37 is connected, via which water to a lower rotating arm 38 is directed. Via a further pipe 39, water also becomes an upper rotating arm 40 headed.

It is also possible to use the tubes 37 or 39 and thus the rotating arms 38 and 40 to supply compressed air, for which a pipe branch 22 is attached to the pipe 21 is.

The entire dishwasher can be controlled via a control panel 41, whereby the individual units such as circulation pumps, high pressure blowers, valves in time are operated in the correct order.

The collecting container 24 has a drain pipe at its lower end 27, which is connected to a water disposal system via a drain valve 28.

Finally, it should be noted that the drum 6 when pulled out Car 29 can be easily removed and optionally also by other known Washing baskets, for rinsing other items, can be exchanged. Even though not shown in detail, it is clear to the person skilled in the art that the guide rails 31 in as is known, in part also be part of a door can. Of course, it is also possible to use the carriages and so that the drum can be pushed out of the machine on two sides.

All shown in the claims, the description and the figure technical details can be used both on their own and in any combination be essential to the invention with one another.

L e r s e i t e

Claims (21)

Claims dishwasher for washing objects for the Laboratory and hospital supplies, especially tubing, with at least one inside a closable washing area arranged push-on or connecting piece for the objects to be washed, with the at least one push-on or connecting piece Can be connected to a flushing water supply and at least one water outlet nozzle has, characterized in that the at least one slip-on or connecting piece (9, 10) attached to a rotatable drum (6) and with her is rotatable. 2. Dishwasher according to claim 1, characterized in that the at least a slip-on or Connection piece (9, 10) on one with the axis of rotation of the drum (6) aligned pipe (8) is attached, the pipe (8) with the flushing water supply (2-5) is connectable. 3. Dishwasher according to claim 2, characterized in that the axis of the at least one slip-on or. Connection piece (9, 10) perpendicular to the axis of the tube (8) runs. 4. Dishwasher according to claims 1 to 3, characterized in that that the at least one slip-on or. Connection piece (9, 10) conical to the outside is designed to taper to a point. 5. Dishwasher according to one or more of claims 1 to 4, characterized characterized in that several push-on or connecting pieces (9, 10) are provided. 6. Dishwasher according to claim 5, characterized in that the slip-on or connecting pieces (9, 10) have different outer diameters and / or lengths. 7. Dishwasher according to one or more of claims 1 to 6, characterized characterized in that on the drum (6) several fastening devices (42) for the objects (11) to be cleaned are provided. 8. Dishwasher according to claim 7, characterized in that the fastening devices are clamping devices (42) arranged on the outer circumference of the drum (6). 9. Dishwasher according to claim 5, characterized in that the slip-on or connecting pieces (9, 10) can be closed individually. 10. Dishwasher according to one or more of claims 1 to 9, characterized characterized in that rotating devices (12-15) are provided which the drum (6) drive in direction of rotation. 11. Dishwasher according to claim 10, characterized in that the Rotating devices (12-15) attached to the drum and blades associated therewith Have outlet openings for water or compressed air. 12. Dishwasher according to claim 10, characterized in that the Rotating device includes a motor-driven roller (13) having an engagement surface (12) can be brought into frictional engagement on the outer circumference of the drum (6) 13th Dishwasher according to Claim 10, characterized in that the rotating device has a contains central drive acting on the axis of the drum (6). 14. Dishwasher according to one of claims 10 to 13, characterized in that that the rotating device (12-15) to at least two different drive speeds is switchable. 15. Dishwasher according to one or more of claims 1 to 14, characterized by a device (41; 18, 21, 23; 2-4) optionally rinsing water or compressed air can be supplied. 16. Dishwasher according to claim 15, characterized by an in the Compressed air supply (18, 21, 23) activated sterile filter (19). 17. Dishwasher according to one or more of claims 1 to 16, characterized in that the axis of the drum (6) is arranged horizontally. 18. Dishwasher according to one or more of claims 1 to 16, characterized in that the axis of the drum (6) is arranged vertically. 19. Dishwasher according to one or more of claims 1 to 16, characterized in that the axis of the drum (6) is arranged obliquely. 20. Dishwasher according to one or more of claims 1 to 19, characterized in that the drum (6) is slidably mounted, the or the connecting piece (9) in the pushed-in position of the drum (6) the flushing water (24) and optionally compressed air supply (18, 21, 23) automatically is or are connectable. 21. Dishwasher according to one or more of claims 1 to 20, characterized by at least one additional, known per se, to the flushing water supply and, if necessary, rotating arm (38, 40) connected to the compressed air supply for external washing of the objects (11).