EP3234361B1 - Transport device - Google Patents

Description

State of the art

The invention relates to a conveyor device according to the preamble of claim 1.

Out EP 1 317 626 B1 and from DE 35 42 454 A1 as well as from DE 10 2009 037 845 A1 conveying devices for conveying a conveying means are already known. The conveying devices in this case comprise a conveying space, a conveying space element delimiting the conveying space, which is rigid, and an elastically deformable conveying element which, together with the conveying space element, delimits the conveying space.

Furthermore is out US 5,533,886 B Already a conveying device for at least conveying a conveying means, with at least one conveying space, with at least one conveying space element which is at least partially delimiting the conveying space and which is rigid, and with at least one elastically deformable conveying element which, together with the conveying space element, delimits the conveying space, the conveying space element an at least partial formation of the delivery chamber has at least one concave recess, an inner surface of the delivery chamber element delimiting the concave recess forming a wall of the delivery chamber, wherein the delivery element has at least one delivery surface that is intended to deliver a fluid in the delivery chamber and / or through the funding area is available, known.

The object of the invention is, in particular, to provide a generic device with improved properties with regard to a low load on the conveying element as a result of a deformation, in order to reduce the compression or the expansion of the conveying element during the conveyance of a fluid. The object is achieved according to the invention solved by the features of claim 1, while advantageous refinements and developments of the invention can be found in the dependent claims.

Advantages of the invention

The invention relates to a conveying device for at least conveying a conveying means, with at least one conveying space, with at least one conveying space element that is at least partially delimiting the conveying space, and with at least one elastically deformable conveying element that, together with the conveying space element, delimits the conveying space , in particular forms, wherein the conveying space element has at least one concave recess for at least partial formation of the conveying space, an inner surface of the conveying space element delimiting the concave recess forming a wall of the conveying space, the conveying element having at least one conveying surface which specifically for promoting a Fluids in the delivery room and / or can be used by the delivery room.

It is proposed that the at least one conveying surface in a non-loaded state of the conveying element, viewed in a cross section of the conveying element, have a maximum transverse extent which corresponds to a maximum transverse extent of the rigid wall of the conveying space element, which at least partially delimits the conveying space, at least the conveying element being designed to be resilient, the conveying element automatically striving for a convexly curved basic shape of the conveying element after deformation. The conveying element particularly preferably has the at least one conveying surface which, viewed in a cross section of the conveying element, has a maximum transverse extent which completely corresponds or is congruent with the maximum transverse extent of the rigid wall of the conveying space element which at least partially delimits the conveying space. It is also conceivable that the maximum transverse extent of the conveying surface of the conveying element in a loaded state of the conveying element corresponds to the maximum transverse extent of the rigid wall of the conveying chamber element that at least partially delimits the conveying space. The conveyor device is preferably intended for use in the medical field. However, it is also conceivable that the conveying device is intended for use in other areas, for example in a food area, in a chemical area, in a pharmaceutical area, in particular for batch-conforming use, in a vivarium area (aquarium etc.), in a household machine area , in a dental hygiene area or the like. "Provided" is to be understood in particular to be specially designed and / or specially equipped. The fact that an element and / or a unit is / are provided for a specific function should in particular be understood to mean that the element and / or the unit fulfill / fulfill this specific function in at least one application and / or operating state and / or run / execute. “At least essentially” is to be understood, in particular at least in connection with extensions and / or extents, that a deviation from a predetermined value deviates in particular less than 25%, preferably less than 10%, particularly preferably less than 5% of the predetermined value and very particularly preferably completely corresponds to the value.

The term "conveying space" defines here, in particular, a space that is at least limited by the elastically deformable conveying element and the rigidly configured conveying space element, and in particular at least from at least one entrance to the space through which a conveying means to be conveyed can be introduced into the space an outlet of the room, through which a funding to be conveyed can be brought out of the room, extends between the conveying element and the conveying space element. The conveying space preferably extends at least from a conveying space entrance of the conveying space to a conveying space exit of the conveying space between the conveying element and the conveying space element.

The expression “rigidly constructed” is intended here to define in particular an embodiment of an element, the element being at least essentially rigid, immobile and / or inelastic. The conveying space element is thus preferably intended to remain at least essentially, in particular completely, unchanged in shape for conveying a conveying means.

The conveying element is preferably intended to be deformed, in particular elastically deformed, to convey a conveying means, in particular a fluid. The conveying element is preferably provided to allow conveyance of a conveying means out of and / or through the conveying space as a result of a deformation, in particular a repeatable elastic deformation, of the conveying element. The conveying element is preferably deformable, in particular repeatably elastically deformable, so that the conveying element can be moved in order to convey a conveying means in the direction of the recess of the conveying device corresponding to the conveying element, in particular the concave recess of the conveying space element, and in particular can be at least partially moved into it. A dynamic funding of a funding or a displacing funding of a funding can thus advantageously be realized. The conveying element is preferably, at least in part, directly displaceable for conveying a conveying means as a result of a deformation Form-fitting, can be applied to an inner surface of the conveying device, in particular the conveying space element of the conveying device, which delimits the recess and in particular surrounds the recess. The conveying element is preferably designed as a diaphragm pump element, in particular as a rigid and / or as a resilient diaphragm pump element. The conveying element is preferably designed differently from a peristaltic pump element, in particular a flexible hose of a peristaltic pump device.

The elastically deformable conveying element is preferably provided to seal at least one edge region of the rigidly configured conveying space element delimiting the conveying space, in particular in at least one state of the conveying element arranged on the conveying space element. The elastically deformable conveying element can preferably be arranged on the rigidly configured conveying space element such that the at least one edge region of the conveying space element delimiting the conveying space can be sealed. The at least one edge region of the conveying space element delimiting the conveying space can be sealed directly by means of the conveying element. However, it is also conceivable that, alternatively or additionally, a sealing element of the conveying device is provided which can be arranged between the conveying element and the conveying space element, in particular can be arranged on the at least one edge region of the conveying space element delimiting the conveying space. The sealing element of the conveying device can be designed as a sealing rubber, a sealing cord, a sealing lip, a flexible sealing compound, a fiber seal, a paper seal or the like.

The maximum transverse extent of the conveying surface preferably extends at least substantially transversely, in particular at least substantially perpendicularly, to a conveying direction in the conveying space. The conveying direction in the conveying space preferably runs from the conveying space entrance to the conveying space exit. “At least essentially transverse” is intended to mean in particular an orientation of a direction and / or an axis relative to a reference direction and / or a reference axis are avoidable. The interchangeable unit is preferably designed as a disposable item unit. However, it is also conceivable that the interchangeable unit is designed as a replacement unit, as a wear part unit, as a replacement unit or the like.

The conveying device preferably comprises at least one conveying means supply unit for storing a conveying means, in particular a fluid. A “funding unit” is to be understood here to mean in particular a unit which has at least one storage space in which a funding, in particular a fluid, can be stored. A volume of the storage space of the conveying means supply unit is preferably at least larger than a volume of the conveying space. The conveyor supply unit is preferably configured like a tank. The conveyor supply unit can be designed as a cartridge, as an ampoule, as a cartridge or the like. The conveying means supply unit is preferably connected to the conveying space in terms of flow technology. An outlet of the conveying means supply unit is preferably connected to the conveying space entrance of the conveying space by means of at least one channel of the conveying device, in particular connected in a fluid-tight manner. A means of conveyance stored in the storage space of the conveying means storage unit can thus advantageously be conveyed out of the storage space by means of a cooperation of the conveying element and the conveying space element.

"Spring-elastic" is to be understood in particular to mean a property of an element, in particular the conveying element, which is provided in particular for generating a counterforce which is dependent on a change in a shape of the element and is preferably proportional to the change and which counteracts the change. The conveying element can preferably be deformed repeatedly without thereby mechanically damaging or destroying the conveying element. The spring-elastic configuration of the conveying element can preferably be influenced and / or caused at least partially by means of the convex arrangement on the conveying space element. The conveying element is preferably arranged on the conveying space element in such a way that a conveying means is conveyed in and / or through the conveying space as a result of a dent in the conveying element. After the cancellation of an action of a driving force on the conveying element to promote a funding, the aim Conveying element preferably at least substantially automatically, in particular as a result of the spring-elastic configuration, again towards the convexly curved arrangement on the conveying space element. The conveying element is preferably made of spring steel or of a fiber composite material. However, it is also conceivable for the conveying element to be made of another material which appears to be useful to a person skilled in the art and which enables a resilient design of the conveying element. The conveying element preferably uses a “buckling effect” to convey a conveying means in and / or through the conveying space. The conveying element can preferably be dented at least temporarily for conveying a conveying means, at least one dent for conveying a conveying means being displaceable, in particular rolling, along a longitudinal axis of the conveying element. The conveying element is preferably designed to be dimensionally stable. In this context, “dimensionally stable” should be understood to mean that the conveying element is preferably against pressure, heat or the like. is resistant in shape.

By means of the configuration according to the invention, an at least largely loss-free conveyance of a conveying means in and / or through the conveying space can advantageously be achieved. In addition, a long service life of the conveyor device can advantageously be achieved. Furthermore, the funding according to the invention advantageously enables efficient funding of a funding. In addition, an internal tension, in particular an internal mechanical tension, of the conveying element can advantageously be used to convey a conveying means.

Furthermore, it is proposed that the conveying element, in particular the conveying surface of the conveying element, in an unloaded state, viewed in a cross section of the conveying element, has at least one circular arc section, in particular a single circular arc section, which has a maximum length, which is a sum of maximum lengths of circular arc sections, in particular of all circular arc sections delimiting the conveying space, of the rigid wall of the conveying space element. An "unloaded state" is to be understood here in particular to mean a state of the conveying element in which the Conveying element is free of driving forces for conveying a conveying means, in particular free of driving forces acting on the conveying element of a driving element of a drive unit of the pump device. The circular arc section of the conveying element is preferably part of the conveying surface, in particular the maximum transverse extent of the conveying surface. The rigid wall of the conveying space element advantageously has a wave-shaped configuration, viewed in a cross-section, wherein in particular a wave trough is arranged between two wave crests, which in particular forms the concave recess of the conveying space element. The cross section particularly preferably runs in a plane which is at least substantially perpendicular to the conveying direction. The circular arc sections of the rigid wall of the conveying space element preferably run in the plane running at least substantially perpendicular to the conveying direction. However, it is also conceivable that the conveying element, viewed along a longitudinal section, alternatively or additionally has a circular arc section, in particular a single circular arc section, which has a maximum length, which is composed of a sum of maximum lengths of circular arc sections of the rigid wall of the conveying space element , in particular corresponds to this sum. The inner surface delimiting the rigid wall of the conveying space element is preferably delimited by the circular arc sections. Preferably, at least a large part, in particular more than 80%, of the conveying element, in particular the conveying surface, in an unloaded state arranged on the conveying space element forms the circular arc section which, viewed in a cross section of the conveying element, has a maximum length which is a sum of maximum lengths of circular arc sections, in particular of all circular arc sections delimiting the conveying space, of the rigid wall of the conveying space element. A part of the conveying element which does not form a circular arc section and which is in permanent contact with the conveying space element, in particular in a state of the conveying element arranged on the conveying space element, is provided for fixing the conveying element to the conveying space element and / or for sealing the conveying space. By means of the configuration according to the invention, a form-fitting contact possibility of the conveying element with the conveying space element can advantageously be achieved. In addition, a complete installation of the conveying surface on the conveying space element for conveying a conveying means can advantageously be achieved. Advantageously, an at least largely loss-free promotion of a Funding can be achieved because a full-surface sealing of the conveying space can be achieved during a conveying movement of the conveying element.

It is further proposed that the rigid wall of the conveying space element, viewed in a cross-section, in particular in the cross-section that runs in the plane that extends at least substantially perpendicular to the conveying direction, has at least three successive circular arc sections. The three successive circular arc sections of the rigid wall of the conveying space element are preferably part of the inner surface of the conveying space element delimiting the conveying space. The three successive circular arc sections of the rigid wall of the conveying space element come into contact with a conveying means to be conveyed while a conveying means is being conveyed. The three successive circular arc sections of the rigid wall of the conveying space element, viewed along an at least substantially perpendicular direction to the conveying direction, are alternately arranged with respect to a curvature behavior. Preferably, two of the three successive circular arc sections of the rigid wall of the conveying space element have a convex curvature and one of the three successive circular arc sections of the rigid wall of the conveying space element preferably has a concave curvature. The concavely curved circular arc section of the rigid wall of the conveying space element, viewed along the direction at least substantially perpendicular to the conveying direction, is preferably arranged between the two convexly curved circular arc sections of the rigid wall of the conveying space element. By means of the configuration according to the invention, a structurally simple configuration of the rigid wall of the conveying space element to an embodiment of the conveying element during deformation of the conveying element to convey a conveying means can be achieved. It can advantageously be ensured that the conveying element can be positively applied to the conveying space element to convey a conveying means, in particular over the entire surface.

In addition, it is proposed that the rigid wall of the conveying space element, viewed in a cross section, in particular in the cross section that extends in the plane that extends at least substantially perpendicular to the conveying direction, has at least three circular arc sections, at least two of the three circular arc sections being rigid wall of the delivery chamber element have different radii. Two of the three circular arc sections of the rigid wall of the conveying space element preferably have the same radii. However, it is also conceivable that the three circular arc sections of the rigid wall of the conveying space element have the same radii or that all three circular arc sections of the rigid wall of the conveying space element have different radii. In addition, it is conceivable that the rigid wall of the conveying space element has one of three different number of circular arc sections that have different or the same radii. Preferably, the circular arc section of the rigid wall of the conveying space element, which is arranged between the two of the circular arc sections of the rigid wall of the conveying space element, has a radius that is different from the radii of the two circular arc sections of the rigid wall of the conveying space element that define the circular arc section of the rigid wall of the Limit the funding element between them. By means of the configuration according to the invention, a smooth transition of a conveying movement of the conveying element can advantageously be achieved when the conveying element is positively applied to the conveying space element. A low load on the conveying element as a result of a deformation, in particular an elastic deformation, of the conveying element for conveying a conveying means can advantageously be achieved.

Furthermore, it is proposed that the rigid wall of the conveying space element, viewed in a cross-section, in particular in the cross-section that runs in the plane extending at least substantially perpendicular to the conveying direction, has at least two directly successive circular arc sections which are arranged adjacent to one another at a turning point are, wherein in particular each of the circular arc sections of the rigid wall of the conveying space element has at least one mathematical change in gradient or a change in the curvature behavior. Preferably, one of the circular arc sections of the rigid wall of the conveying space element has a concave curvature and one of the circular arc sections of the rigid wall of the conveying space element has a convex curvature, the circular arc sections of the rigid wall of the conveying space element being arranged adjacent to one another at a turning point. A particularly advantageous conveying geometry can be realized by means of the configuration according to the invention.

It is further proposed that the conveying element, at least in an unloaded state, has at least one circular arc section that has a radius that is greater than a radius of at least one circular arc section of the rigid wall of the conveying space element. At least in an unloaded state, the conveying element preferably has at least one circular arc section which has a radius which is greater than all radii of circular arc sections of the rigid wall of the conveying space element. By means of the configuration according to the invention, a large conveying surface of the conveying element can advantageously be realized, which can be placed against the rigid wall of the conveying space element particularly advantageously for conveying a conveying means.

In addition, it is proposed that the conveying device has a maximum conveying space height between the conveying element and the conveying space element that is smaller than a radius of at least one circular arc section of the rigid wall of the conveying space element and / or as a radius of at least one circular arc section of the conveying element. The conveying space height preferably runs along a direction which is at least substantially perpendicular to the conveying direction. By means of the configuration according to the invention, a particularly flat-type conveying device can advantageously be realized, which can enable a large conveying capacity.

Furthermore, it is proposed that the conveying element can be arranged at least partially convexly on the conveying space element. In a conveyance-free state, the conveying element is preferably arranged so as to be convexly curved on the conveying space element. The conveying element can be moved to convey a conveying means, preferably starting from a convex curvature oriented in a direction facing away from the conveying space element, in the direction of the conveying space element, in particular elastically deformable and in particular at least partially movable into the concave recess of the conveying space element. The conveying element can preferably be converted at least partially into a concave curvature for conveying a conveying means starting from a convex curvature. The conveying element can preferably be placed at least partially on the inner surface of the conveying space element which delimits the concave recess of the conveying space element and in particular is oriented in the direction of the conveying element, in particular as a result of a driving force acting on the conveying element. At least one conveying surface of the conveying element is very particularly preferred as a result an elastic deformation of the conveying element can be placed completely against the inner surface of the conveying space element delimiting the concave recess of the conveying space element, in particular as a result of a driving force acting on the conveying element.

The conveying element is advantageously at least essentially non-detachably connected to the conveying space element. The conveying element can be at least essentially non-detachably connected to the conveying space element along an entire circumference, in particular viewed in at least one plane, or the conveying element can be at least essentially non-detachably connected to the conveying space element on at least one individual side, for example via a film hinge o. The conveying element and the conveying space element are preferably formed in one piece, for example by means of a spraying method or the like, in particular when the conveying element and the conveying space element are connected at least essentially in a non-detachable manner by means of a film hinge or the like. The conveying element and the conveying space element are preferably made of the same material, such as plastic or metal, or the same material composition, such as GRP, another composite material or the like. However, it is also conceivable that the conveying element and the conveying space element are made of different materials and are at least essentially permanently connected to one another.

In addition, a pump device with at least one delivery device according to the invention and with at least one drive unit for driving the delivery device is proposed. The conveying element can preferably be driven by means of the drive unit in such a way that conveying a conveying means according to a traveling wave principle is possible. The drive unit can be used as a mechanical drive unit, as a magnetic drive unit, as a piezoelectric drive unit, as a hydraulic drive unit, as a pneumatic drive unit, as an electrical drive unit, as a magnetorheological drive unit, as a carbon tube drive unit, as a combination of one of the named types of drive units or as another , be designed by a person skilled in the art as a drive unit. The drive unit preferably has at least one drive element which is provided to act on the conveying element, In particular, it is provided to cause an elastic deformation of the conveyor element as a result of the action of a driving force on the conveyor element. The drive element can have any configuration that appears useful to a person skilled in the art, such as, for example, as a plunger, as an extension, as a helix, as a cam, as a piezo element, as a magnet, as an eccentric or the like. The drive unit preferably comprises at least one electric motor unit, in particular for this purpose it is provided to drive at least the drive element. However, it is also conceivable that the drive unit comprises another motor unit that appears to be useful to a person skilled in the art, such as an internal combustion engine unit, a hybrid motor unit or the like. Alternatively, it is also conceivable that the pump device can be operated manually, in particular by hand. In one configuration of the pump device as a manually operable pump device, a fluid can be transported at least into the delivery space as a result of the action of a force of a hand, in particular at least one finger, on the conveying element and / or as a result of the action of a hand, in particular at least one finger, one operator, can be transported onto the conveying element, at least out of the conveying space. The manually operable pump device preferably comprises at least one valve unit, which, for example, has at least one valve, in particular a one-way valve (e.g. check valve or the like), at a pump chamber entrance and at least one valve, in particular a one-way valve (e.g. Check valve or the like), has at a delivery chamber exit. The pump device preferably has at least one housing unit on which the conveying device can be arranged, in particular can be arranged interchangeably.

The drive unit is preferably designed as a helical drive unit or as an eccentric drive unit. A "helical drive unit" is to be understood here in particular to mean a drive unit which has at least one helical drive element which is provided, in particular, for an action of a drive force, in particular a direct action of a drive force, on the conveying element. However, it is also conceivable for the drive unit to have a different configuration which appears to be useful to a person skilled in the art, such as, for example, a configuration as a paternoster drive unit, a ring gear drive unit or the like. A "paternoster drive unit" is to be understood here to mean in particular a drive unit which has at least one force acting element has, in particular to a Action of a driving force, in particular a direct action of a driving force, can be driven on the conveying element in a rotary drive, the force acting element in particular becoming an action of a driving force on the conveying element at least substantially parallel to a rotating plane, in particular in the rotating plane in which the force acting element is drivable in a rotating operation, extends. A "disk drive unit" is to be understood here to mean in particular a drive unit which has at least one drive element which is arranged, in particular for the action of a driving force, in particular a direct action of a driving force, on the conveying element on a rotatingly drivable plate element, the drive element in particular for an action of a driving force on the conveying element extends at least substantially parallel to an axis of rotation of the plate element.

The drive unit preferably comprises at least one drive element designed as a helix or at least one eccentric. The drive element is preferably provided to act directly on the conveying element. However, it is also conceivable that at least one further element or further elements is / are arranged between the drive element and the conveying element, such as, for example, a friction-reducing element, a bearing element or the like. In the case of a configuration as a drive spiral, the drive element can have one or more spiral elements have or have, for example, a circular segment-like cross section, a wave-like cross section, in particular a wave-like cross section with at least two wave crests and a wave trough, wherein the wave crests can have the same or different maximum heights. The spiral element (s) can be formed from a resiliently elastic material or from the same material as a base body of the drive element. Further configurations of the drive element that appear to be useful to a person skilled in the art are also conceivable. At least one drive axis of the drive unit advantageously runs at least substantially parallel to the conveying direction of the conveying device, in particular a conveying direction in the conveying space. In an embodiment of the drive unit as a helical drive unit or as an eccentric drive unit, a rotation axis of the drive element designed as a helix or as an eccentric, which forms the drive axis of the drive unit, runs at least substantially parallel to the conveying direction in the conveying space. An axis of rotation preferably runs one Rotor element of the electric motor unit of the drive unit at least substantially parallel to the conveying direction in the conveying space. The axis of rotation of the rotor element of the electric motor unit preferably forms a further drive axis, which runs at least substantially parallel to the conveying direction in the conveying space. By means of the configuration according to the invention, a pump device can advantageously be realized which enables a high, flat construction. A compact construction of the pump device can thus advantageously be realized.

The conveying device according to the invention and / or the pump device according to the invention should / should not be limited to the application and embodiment described above. In particular, the conveying device according to the invention and / or the pump device according to the invention can have a number that differs from a number of individual elements, components and units as well as method steps mentioned in order to fulfill a function described here. In addition, in the value ranges specified in this disclosure, values lying within the limits mentioned are also to be regarded as disclosed and to be used as desired.

drawings

Further advantages result from the following description of the drawing. In the drawings, an embodiment of the invention is shown. The drawings, description, and claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into useful further combinations.

Fig. 1

eine erfindungsgemäße Pumpenvorrichtung mit zumindest einer erfindungsgemäßen Fördervorrichtung in einer schematischen Darstellung,

Fig. 2

einen Längsschnitt durch einen Förderraum der erfindungsgemäßen Fördervorrichtung, der von einem Förderelement und einem Förderraumelement der erfindungsgemäßen Fördervorrichtung gebildet wird, in einer schematischen Darstellung,

Fig. 3

einen Querschnitt durch einen Förderraum der erfindungsgemäßen Fördervorrichtung in einem unbelasteten Zustand eines Förderelements der erfindungsgemäßen Fördervorrichtung in einer schematischen Darstellung,

Fig. 4

einen Querschnitt durch einen Förderraum der erfindungsgemäßen Fördervorrichtung in einem belasteten Zustand eines Förderelements der erfindungsgemäßen Fördervorrichtung in einer schematischen Darstellung und

Fig. 5

eine Detailansicht einer geometrischen Ausgestaltung des Förderelements der erfindungsgemäßen Fördervorrichtung und eines Förderraumelements der erfindungsgemäßen Fördervorrichtung in einer schematischen Darstellung.

Show it:

Fig. 1

a pump device according to the invention with at least one delivery device according to the invention in a schematic representation,

Fig. 2

a longitudinal section through a conveying space of the conveying device according to the invention, of a conveying element and a Conveying space element of the conveying device according to the invention is formed, in a schematic representation,

Fig. 3

3 shows a cross section through a conveying space of the conveying device according to the invention in an unloaded state of a conveying element of the conveying device according to the invention in a schematic illustration,

Fig. 4

a cross section through a conveyor chamber of the conveyor device according to the invention in a loaded state of a conveyor element of the conveyor device according to the invention in a schematic representation and

Fig. 5

a detailed view of a geometric configuration of the conveying element of the conveying device according to the invention and a conveying space element of the conveying device according to the invention in a schematic representation.

Description of the embodiment

Figure 1 shows a pump device 56 with at least one conveying device 10 and with at least one drive unit 58 for driving the conveying device 10. To control and / or regulate the drive unit 58, the pump device 56 comprises at least one control and / or regulating unit (not shown in more detail here) which has a configuration which is already known to a person skilled in the art. The drive unit 58 is designed as a helical drive unit or as an eccentric drive unit. At least one drive axis 62 of a drive element 64 of the drive unit 58 runs at least substantially parallel to a conveying direction 66 of the conveying device 10, in particular at least substantially parallel to a conveying direction 66 through at least one conveying space 12 of the conveying device 10. The drive element 64 is a drive coil or an eccentric shaft educated. The drive element 64 is rotatably mounted in a housing unit (not shown here) of the pump device 56 in a manner already known to a person skilled in the art. The drive axis 62 is designed as an axis of rotation of the drive element 64. The drive element 64 is provided for this, at least one at least Conveying element 16 associated with the conveying space 12 of the conveying device 10 for elastically deforming a conveying means. The conveying element 16 assigned at least to the conveying space 12 is designed to be elastic, in particular resilient, deformable. The drive element 64 is provided for generating a traveling wave movement of the conveying element 16 assigned to at least the conveying space 12 along a longitudinal axis of the conveying element 16 assigned to the at least the conveying space 12. It is conceivable here that the drive element 64 acts directly on the conveying element 16 assigned at least to the conveying space 12, or that an excitation element (not shown here) of the conveying device 10 is arranged between the drive element 64 and the conveying element 16 at least associated with the conveying space 12 which acts directly on the drive element 64, the excitation element transmitting an action of drive forces to the conveying element 16 which is at least associated with the conveying space 12 and which at least partially abuts the excitation element.

The drive unit 58 comprises at least one motor unit 68 for movement, in particular rotation, of the drive element 64. The motor unit 68 is designed as an electric motor unit. However, it is also conceivable that the motor unit 68 has a different configuration that appears to be useful to a person skilled in the art, such as, for example, a configuration as an internal combustion engine unit, a hybrid motor unit or the like. The drive element 64 can be direct, in particular rotationally fixed, or indirect, for example by means of a Gear unit of the conveying device 10 or by means of at least one gear element of the conveying device 10, with a rotor shaft 70 of the motor unit 68. The rotor shaft 70 has an axis of rotation which runs at least substantially parallel, in particular coaxially, to the drive axis 62 of the drive element 64.

Furthermore, the conveying device 10 comprises at least one conveying means supply unit 60 for storing a conveying means, the conveying means supply unit 60 forming the interchangeable unit together with the conveying space element 14 and the conveying element 16. The conveying means supply unit 60 is at least essentially non-detachably connected to the conveying space element 14. However, it is also conceivable that the conveying means supply unit 60 of the conveying device 10 in an alternative embodiment of the conveying device 10 (not shown here in greater detail) is not part of the exchangeable unit and by means of a conveying line, such as For example, a hose, a channel or the like. The delivery device 10 can be fluidly connected to the interchangeable unit, in particular at least with the delivery chamber 12, in particular can be connected releasably, and the interchangeable unit can be removed from the housing unit separately from the supply unit 60.

The conveying device 10 is provided at least for conveying a conveying means. The conveying device 10 comprises at least the conveying space 12, at least one conveying space element 14 which is at least partially delimiting the conveying space 12 and which is rigid, and at least the elastically deformable conveying element 16 which, together with the conveying space element 14, delimits the conveying space 12. At least the conveying space element 14 and the conveying element 16 together form an exchangeable unit. The interchangeable unit can be detachably arranged on the housing unit. The conveying element 16 has at least one conveying surface 18 which, viewed in a cross section of the conveying element 16, has a maximum transverse extent 20 which at least essentially corresponds to a maximum transverse extent 22 of a rigid wall 24 of the conveying space element 14 which at least partially delimits the conveying space 12 ( Figure 3 ). The conveying element 16 particularly preferably has at least one conveying surface 18 which, viewed in a cross section of the conveying element 16, has a maximum transverse extent which corresponds, in particular completely, to a maximal transverse extent of the rigid wall 24 of the conveying chamber element 14 which at least partially delimits the conveying chamber 12 or is congruent.

Figure 2 shows a longitudinal section through the conveying space 12 of the conveying device 10, which is formed at least by the conveying element 16 and the conveying space element 14 of the conveying device 10. The conveying element 16 has a polygonal, in particular rectangular, configuration. The conveying space element 14 has a polygonal, in particular rectangular, configuration. In the Figure 2 The funding supply unit 60 is not shown. The conveying element 16 is provided to seal at least one edge region of the conveying space element 14 which delimits the conveying space 12. A conveying means which can be conveyed into and / or through the conveying space 12 by means of a cooperation of the conveying space element 14 and the conveying element 16 can be introduced into the conveying space 12 by means of a conveying space entrance 72 of the conveying device 10. The delivery room entrance is 72 arranged on the conveying space element 14, in particular in one piece with the conveying space element 14. The conveying space entrance 72 is fluidly connected to the conveying means storage unit 60, in particular fluidly connected to a storage space exit (not shown in more detail here) of the conveying means supply unit 60. A conveying means can be conveyed by means of a reversible deformation of the conveying element 16 in and / or through the conveying space 12. A conveying means can be conveyed by means of a reversible deformation of the conveying element 16 starting from the conveying space entrance 72 through the conveying space 12 to a conveying space exit 74 of the conveying device 10. The conveying space outlet 74 is arranged on the conveying space element 14, in particular in one piece with the conveying space element 14. The fluid chamber exit 74 is fluidly connected to a further unit (not shown here). The further unit can in this case be part of the pump device 56, part of an administration device on which the pump device 56 is arranged, part of a household machine on which the pump device 56 is arranged or the like. In the case of an embodiment of the pump device 56 as part of an administration device, it is particularly conceivable that the further unit is designed as an injection unit, in particular as a needle or syringe unit. The further unit can be connected directly to the delivery space exit 74, or the further unit can be fluidly connected to the delivery space exit 74 by means of a separate delivery line, such as a hose. Further fluid-technical connections of the further unit to the delivery chamber outlet 74 which appear to be useful to a person skilled in the art are also conceivable.

Figure 3 shows a cross section through the conveying space 12, the conveying element 16 being shown in an unloaded state. In particular, in the unloaded state of the conveying element 16 there is no conveying of a conveying means. The conveying element 16 can be arranged at least partially convexly on the conveying space element 14. The conveying element 16 is at least partially convexly curved on the conveying space element 14 in an unloaded state, in particular in a state unloaded by the action of a drive force that can be generated by the drive unit 58. The conveying space element 14 has at least one concave recess 76 to at least partially delimit and / or to at least partially form the conveying space 12. An inner surface of the conveying space element 14 delimiting the recess 76 forms the rigid wall 24 of the conveying space element 14 Conveying element 16 is deformable in such a way that the conveying element 16 can be moved in the direction of the recess 76 for conveying a conveying means and in particular can be at least partially moved into the latter ( Figure 4 ). The conveying element 16 is designed to be resilient. The conveying element 16 is at least essentially non-detachably connected to the conveying space element 14, in particular in an edge region of the conveying space element 14 delimiting the recess 76. The at least substantially non-detachable connection of the conveying element 16 to the conveying space element 14 forms in particular a seal between the conveying element 16 and the conveying space element 14. However, it is also conceivable for an additional sealing element of the conveying device 10 to be arranged between the conveying element 16 and the conveying space element 14. The conveying space 12 can preferably be sealed in a fluid-tight manner as a result of a connection to the conveying space element 14 and / or as a result of an arrangement of the conveying element 16 on the conveying space element 14. The conveying surface 18 is for conveying a conveying means into and / or through the conveying space 12 as a result of an action of a drive force that can be generated by the drive unit 58 on the wall 24 of the conveying space element 14 delimiting the conveying space 12, in particular on the inner surface of the conveying space element 14 delimiting the recess 76 , can be created, in particular can be fully created ( Figure 4 ). A conveying means can be conveyed into and / or through the conveying space 12 as a result of an action of a driving force that can be generated by the drive unit 58 on the conveying element 16 assigned to the conveying space 12, whereby a traveling wave movement can be generated. The conveying means can be conveyed into and / or through the conveying space 12 by at least one conveying means supply unit 60 (not shown here), in particular as a result of a negative pressure, through an action of a driving force that can be generated by the drive unit 58 on the conveying element 16. Furthermore, the conveying means can be conveyed from the conveying chamber 12 to the further unit by the action of a driving force that can be generated by the drive unit 58 on the conveying element 16 through the conveying space outlet 74.

Figure 5 shows a detailed view of a geometric configuration of the conveying element 16 of the conveying device 10 and the conveying space element 14 of the conveying device 10. The conveying element 16, in particular the conveying surface 18 of the conveying element 16, has in an unloaded state, viewed in a cross section of the conveying element 16, at least one circular arc section 26 that has a maximum length 28 that is composed of a sum of maximum lengths 30, 32, 34 of circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14. The conveying surface 18 of the conveying element 16 extends, viewed in cross section of the conveying element 16, starting from a fastening area of the conveying element 16, which in a state of the conveying element 16 arranged on the conveying space element 14 always bears against the conveying space element 14, to a further fastening area of the conveying element 16, which is arranged at one end of the conveying element 16 which faces away from the fastening region.

Furthermore, the rigid wall 24 of the conveying space element 14, viewed in a cross section, has at least three successive circular arc sections 36, 38, 40. The circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 are part of the inner surface of the conveying space element 14. The inner surface of the conveying element 16 is arranged on a side of the conveying space element 14 facing the conveying element 16. Viewed in cross section, the rigid wall 24 of the conveying space element 14 has at least the three circular arc sections 36, 38, 40, at least two of the three circular arc sections 36, 38, 40 having different radii 42, 44, 46. Two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 have the same radii 42, 46. The two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 are arranged on the outside. One of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the delivery chamber element 14 has a radius 44 which is different from the radii 42, 44 of the two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the delivery room element 14, which are arranged outside. The one of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the delivery chamber element 14, which has a different radius 44 in comparison to the two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the delivery room element 14, is viewed along one at least substantially perpendicular to the conveying direction 66, between the two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14, which have the same radii 42, 46. However, it is also conceivable that all three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 have different or identical radii 42, 44, 46. Further configurations of the radii 42, 44, 46 of the circular arc sections 36, 38, 40 of the rigid ones which appear to be useful to a person skilled in the art Wall 24 of the conveying space element 14 are also conceivable. The conveying element 16, in particular the conveying surface 18 of the conveying element 16, has, at least in an unloaded state of the conveying element 16, at least one circular arc section 26 which has a radius 52 which is larger than a radius 42, 44, 46 of at least one of the three circular arc sections 36 , 38, 40 of the rigid wall 24 of the conveying space element 14.

Preferably, at least the sum of the maximum lengths 30, 32, 34 of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 is equal to the maximum length 28 of the circular arc section 26 of the conveying element 16, in particular the conveying surface 18 of the conveying element 16. In the geometric configuration of the conveying element 16 and the conveying space element 14 preferably the condition applies that a distance between points A ₁ and A ₂ along the circular arc section 26 of the conveying element 16 with respect to a length is equal to a distance between points A ₁ , T ₁ , T ₂ , T ₃ , T ₄ and A ₂ along the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14. The maximum transverse extension 20 of the conveying surface 18 particularly preferably corresponds to a length of the distance between the points A ₁ and A ₂ . The maximum transverse extent of the rigid wall 24 of the conveying space element 14, which at least partially delimits the conveying space 12, preferably corresponds to a length of the distance between the points A ₁ , T ₁ , T ₂ , T ₃ , T ₄ and A ₂ .

Furthermore, viewed in cross section, the rigid wall 24 of the conveying space element 14 has at least the two directly successive circular arc sections 36, 38, 40 which are arranged adjacent to one another at an inflection point 48, 50. The two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14, which are arranged on the outside, are each directly adjacent to that of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14 at a turning point 48, 50 , which is arranged between the two of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the conveying space element 14, which are arranged on the outside.

Furthermore, the conveying device 10 comprises a maximum conveying space height 54 between the conveying element 16 and the conveying space element 14, which is smaller than a radius 42, 44, 46 of at least one of the three circular arc sections 36, 38, 40 of the rigid wall 24 of the The conveying space element 14 and / or is smaller than a radius 52 of at least the circular arc section 26 of the conveying element 16, in particular the conveying surface 18 of the conveying element 16.

reference numeral

10

conveyor

12

delivery chamber

14

Pumping chamber element

16

impeller

18

conveying surface

20

transverse extension

22

transverse extension

24

wall

26

Arc section

28

length

30

length

32

length

34

length

36

Arc section

38

Arc section

40

Arc section

42

radius

44

radius

46

radius

48

turning point

50

turning point

52

radius

54

Pumping chamber height

56

pump device

58

drive unit

60

Funding supply unit

62

drive axle

64

driving element

66

conveying direction

68

motor unit

70

rotor shaft

72

Conveyor Room Entrance

74

Pumping chamber output

76

recess

Claims (9)

1. A conveying device at least for a conveyance of a conveying medium, with at least one conveying space (12), with at least one conveying space element (14) that at least partially delimits the conveying space (12) and is embodied to be rigid, and with at least one elastically deformable conveying element (16) that delimits the conveying space (12) together with the conveying space element (14),
   wherein the conveying space element (14) comprises at least one concave recess (76) for at least partially forming the conveying space (12),
   wherein an inner surface of the conveying space element (14), which delimits the concave recess (76), forms a wall (24) of the conveying space (12),
   wherein the conveying element (16) comprises at least one conveying surface (18), which is usable in a targeted fashion for a conveyance of a fluid in the conveying space (12) and/or through the conveying space (12),
   characterised in that in a load-free state of the conveying element (16), viewed in a cross section of the conveying element (16), the at least one conveying surface (18) has a maximum transverse extension (20) that is equivalent to a maximum transverse extension (22) of the rigid wall (24) of the conveying space element (14) that delimits at least the conveying space (12) at least partially,
   wherein at least the conveying element (16) is embodied in a spring-elastic fashion,
   wherein, following a deformation, the conveying element (16) automatically seeks to re-assume a convexly curved basic shape of the conveying element (16).
2. The conveying device according to claim 1, characterised in that the conveying element (16) comprises in a load-free state, viewed in a cross section of the conveying element (16), at least one circular arc segment (26) having a maximum length (28) that corresponds to a sum of maximum lengths (30, 32, 34) of circular arc segments (36, 38, 40) of the rigid wall (24) of the conveying space element (14).
3. The conveying device according to one of the preceding claims, characterised in that, viewed in a cross section, the rigid wall (24) of the conveying space element (14) comprises at least three consecutive circular arc segments (36, 38, 40).
4. The conveying device according to one of the preceding claims, characterised in that, viewed in a cross section, the rigid wall (24) of the conveying space element (14) comprises at least three circular arc segments (36, 38, 40), wherein at least two of the three circular arc segments (36, 38, 40) have different radii (42, 44, 46).
5. The conveying device according to one of the preceding claims, characterised in that, viewed in a cross section, the rigid wall (24) of the conveying space element (14) comprises at least two directly consecutive circular arc segments (36, 38, 40), which are arranged in such a way that they abut on each other in an inflection point (48, 50).
6. The conveying device according to one of the preceding claims, characterised in that the conveying element (16) comprises, at least in a load-free state, at least one circular arc segment (26) having a radius (52) that is greater than a radius (42, 44, 46) of at least one circular arc segment (36, 38, 40) of the rigid wall (24) of the conveying space element (14).
7. The conveying device according to one of the preceding claims, characterised by a maximum conveying space height (54) between the conveying element (16) and the conveying space element (14), which is smaller than a radius (42, 44, 46) of at least one circular arc segment (36, 38, 40) of the rigid wall (24) of the conveying space element (14) and/or than a radius (52) of at least one circular arc segment (26) of the conveying element (16).
8. The conveying device according to one of the preceding claims, characterised in that the conveying element (16) is arrangeable on the conveying space element (14) in such a way that it is at least partially convexly curved.
9. A pump device with at least one conveying device according to one of the preceding claims and with at least one drive unit (58) for driving the conveying device.

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