Sucking device

Abstract

The invention relates to a suction device for connection to a drinking container, in particular a drinking bucket, comprising a teat with an outlet opening and an inlet opening, a base body with an inlet opening and an outlet opening, a fastening element for detachably securing the teat, which is arranged with its inlet opening in the region of the outlet opening of the base body, to the base body, and a valve body that releases a liquid flow towards the outlet opening and blocks it in the direction of the inlet opening. To provide a suction device that is easy to assemble and clean and reliably prevents backflow of drinking liquid, the valve body is arranged with a base body section within a recess of the base body adjacent to the outlet opening and a teat section in the region of the inlet opening within the teat.

Description

[0001] The invention relates to a sucking device for connection to a drinking container, in particular a drinking bucket, with - a vacuum cleaner with an outlet opening and an inlet opening, - a base body with an inlet opening and an outlet opening, - a fastening element for detachably fixing the suction cup, which is arranged with its inlet opening in the area of ​​the outlet opening of the base body, to the base body and - a valve body that releases a flow of fluid towards the outlet opening and blocks it towards the inlet opening.

[0002] Sucking devices of the type mentioned above are known in a variety of designs from the prior art. Drinking containers, preferably drinking buckets, equipped with a sucking device are used to feed young animals with a liquid contained in the drinking container. The sucking device extends through a container opening in the container wall, preferably located in the base region of a drinking bucket, and allows the animal to be suckled to remove the liquid contained in the container via the usually flexible teat. Due to the negative pressure created during sucking, the liquid contained in the drinking container flows through the base body via the teat to the outlet opening, from which the liquid then emerges.

[0003] For trouble-free operation, it is of particular importance that the suckling device, in the position of use, i.e. in the position mounted on the drinking container for use, is liquid-tight both internally and with the drinking container to prevent uncontrolled leakage of liquid.

[0004] Another important element of known feeding devices is a valve body acting as a "check valve," which allows liquid flowing toward the outlet of the teat to pass through, but blocks any backflow of the drinking liquid toward the inlet of the teat. Such backflow results from an increase in pressure inside the teat, caused by compression of the teat during drinking. The valve body prevents impurities from entering the drinking liquid with the backflowing liquid, and also prevents the backflowing liquid from escaping through the sealing surfaces of the feeding device and the connection between the feeding device and the drinking container due to the high liquid pressure.The valve body also prevents liquid from splashing out of the top of the drinking container due to the high liquid pressure generated by the suction compression.

[0005] Known suction devices have the disadvantage of a very complex design, including specially shaped teats and complicated valve bodies, so that the suction devices provide the necessary tightness and protection against backflow of drinking liquid. This complexity results, among other things, in the known suction devices being difficult to clean and sometimes requiring the use of additional tools for liquid-tight installation on the drinking bucket.

[0006] Based on this, the object of the invention is to provide a simply constructed suckling device which is easy to assemble and clean and which reliably prevents backflow of drinking liquid.

[0007] The invention solves this problem by a suckling device having the features of claim 1 and by a drinking container having the features of claim 17. Advantageous developments of the suckling device are specified in dependent claims 2 to 16. A development of the drinking container is specified in dependent claim 18.

[0008] The suckling device according to the invention, which can be connected to a drinking container, in particular a drinking bucket, has a teat, usually made of an elastic material, which can be picked up by the mouth of an animal to be suckled, for example a calf. Due to the negative pressure created during suckling, the liquid arranged in a drinking container flows through the suckling device to the outlet opening of the teat, from which the drinking liquid then emerges. In the position of use, i.e. when the suckling device is mounted on a drinking container, in which it can be used to suckle cattle, the drinking liquid enters the teat via a base body, wherein the base body is arranged with an inlet opening within the drinking container and is connected by an outlet opening to an inlet opening of the teat.

[0009] A fastening element, which is also typically used to secure the suction device to the drinking container, serves to create a fluid-tight connection between the suction device and the base body. When the suction device is assembled or in the operating position, the fastening element exerts a preload on the base body and the suction device arranged in sections between the base body and the fastening element. This—particularly due to the elastic material properties of the suction device—seals the suction device and the connection between the suction device and the drinking container.

[0010] To prevent backflow, which results in particular from the compression of the elastic teat during the drinking process and the resulting pressure within the teat, the suction device has a valve body which blocks backflow of drinking liquid in the direction of the inlet opening of the base body.

[0011] A characteristic feature of the suction device according to the invention is that the valve body is arranged in sections within the base body and the teat. For this purpose, the valve body has a base body section and a teat section, with the base body section being arranged within a recess in the base body adjacent to the outlet opening, and the teat section being arranged in the region of the inlet opening within the teat.

[0012] The recess of the base body is adapted to the base body section of the valve body and arranged adjacent to the outlet opening on the base body. The outlet opening lies in a plane spanned by the end face of the base body facing the inlet opening of the suction device and is delimited by the opening cross-section of the recess. The recess, which according to the invention borders the outlet opening in the longitudinal axis direction of the suction device and the base body and extends toward the base body, serves to coaxially accommodate the base body section within the valve body, which is arranged coaxially with the further suction device section in the region of the inlet opening within the suction device.The sectioned arrangement of the valve body within the recess of the base body and within the teat ensures in a particularly reliable manner that even in the event of a pressure increase within the teat caused by teat compression, no drinking liquid will leak from the teat device or, in the use position, from the area between the teat device and the drinking container. Appropriate tightness is also ensured in the event of a valve body failure, as a result of which the pressure increase caused by teat compression also applies behind the valve body—viewed in the return flow direction.

[0013] The inventive sucking device thus ensures, with a simple design, reliable protection against leaks in the stress situations that occur during the sucking process, particularly in the case of a pressure increase within the sucking device caused by teat compression. Furthermore, the frontal arrangement of the valve body on both the base body and the teat allows for easy assembly and disassembly of the sucking device and the sucking device on the drinking container, as well as for easy cleaning.

[0014] The design of the valve body with a base body section and a suction cup section is fundamentally freely selectable. For example, the base body section and the suction cup section can have a matching outer diameter and be directly adjacent to one another. However, according to an advantageous embodiment of the invention, the base body section, forming a valve body shoulder between the base body section and the suction cup section, has a larger outer diameter than the outer diameter of the suction cup section, wherein the outer diameter of the base body section is adapted to the inner diameter of the recess, and the outer diameter of the suction cup section is adapted to the inner diameter of the suction cup in the region of the inlet opening.

[0015] According to this embodiment of the invention, the base body section has a larger outer diameter than the suction cup section, so that the base body section and the suction cup section are connected to one another via the valve body shoulder forming a circumferential stop surface. The outer diameter of the base body section is adapted to the inner diameter of the recess, so that the valve body with the base body section can be arranged in the recess of the base body with essentially no play. The outer diameter of the suction cup section, in turn, is adapted to the inner diameter of the suction cup in the region of the inlet opening, which makes it possible to arrange the suction cup circumferentially around the suction cup section, adjacent to the valve body.An adapted design of the outer diameter of the suction cup section to the inner diameter of the suction cup also includes a cross-section of the outer diameter of the suction cup section that is slightly larger than the inner diameter of the suction cup in the area of ​​the inlet opening. The design of the suction cup from an elastic material and the resulting deformability makes it possible to arrange it on the suction cup section, with the elastic restoring force of the suction cup material already creating a fluid-tight connection between the suction cup and the suction cup section.

[0016] In the operating position, the suction cup also rests annularly against the stop surface of the valve body shoulder with its circumferential end face facing the base body. This additional contact surface, extending perpendicular to the longitudinal axis, further ensures a fluid-tight arrangement of the suction cup on the valve body. Furthermore, the valve body shoulder ensures reliable positioning of the suction cup on the valve body in the intended position for the operating position in the direction in which the suction cup is pushed onto the suction cup section.

[0017] To secure the base body section of the valve body to the base body in the axial direction of the valve body, a further development of the invention provides that the base body section rests within the recess against a stop located opposite the outlet opening in the axial direction of the base body, in particular a circumferential shoulder on the base body. According to this embodiment of the invention, the recess is delimited in the longitudinal axis direction of the base body, which extends substantially perpendicular to the plane of the outlet opening, by a stop, which is formed in particular by a circumferential shoulder, against which the valve body rests with its base body section on its end face in the position of use.

[0018] This embodiment of the invention thus ensures precise positioning of the valve body on the base body, wherein the additional stop surface of the stop, in particular the circumferential shoulder, extending perpendicular to the inner surface of the recess, creates an additional sealing surface that additionally prevents fluid from escaping. Furthermore, the stop ensures precise positioning of the valve body in the longitudinal axis direction of the base body, wherein it is particularly advantageous that in this position of use the stop surface of the valve body shoulder and the end face of the base body surrounding the recess are arranged in one plane. This enables flat positioning of the end face of the suction cup facing the base body, wherein said end face rests in sections against the valve body shoulder and the end face of the base body.

[0019] This additionally increases the level of protection against liquid leakage compared to the embodiment of the invention, according to which the teat rests solely against the valve body shoulder in the area of ​​the inlet opening. The front surface of the teat runs essentially perpendicular to the inner surface of the teat, thus forming an additional sealing surface against the leakage of drinking liquid from the teat device. The preload generated by the fastening element ensures reliable contact.

[0020] According to an advantageous embodiment of the invention, the suction device, in the region of the inlet opening, rests on the end face of the base body, which defines the outlet opening and is adjacent to the recess. According to this embodiment of the invention, the suction device, with its end face facing the base body, rests on the end face of the base body in an area surrounding the recess, thereby achieving additional sealing, particularly when, according to a particularly advantageous embodiment of the invention, the suction device rests on the end face of both the valve body shoulder and the end face of the base body.

[0021] The suction cup is optionally designed in the contact area with the base body such that the end face has a cross-section which, in the position of use, enables it to bear against both the end face of the base body and the valve body shoulder. According to a particularly advantageous embodiment of the invention, the suction cup has a suction cup flange in the area of ​​the inlet opening, which has a shoulder protruding in a ring from the circumferential surface of the suction cup. The suction cup flange makes it possible to define the end face available for bearing regardless of the thickness of the suction cup wall. Furthermore, the suction cup flange makes it possible to reliably fasten the suction cup to the end face of the base body and the valve body shoulder via the fastening element, wherein the fastening element bears against the shoulder of the suction cup flange facing away from the base body and the valve body shoulder.

[0022] According to a particularly advantageous embodiment of the invention, the base body has a clamping element, in particular clamping rings, projecting from the end face facing the suction cup. In the operating position, the clamping ring presses into the end face of the suction cup and deforms it in the contact area, preferably elastically, although plastic deformation is also conceivable, in which case the clamping ring cuts into the end face facing the base body. The clamping ring increases the positional stability of the suction cup in the operating position and additionally improves the sealing.

[0023] The design of the fastening element is fundamentally freely selectable, but it must be designed in such a way that a releasable attachment of the suction cup to the base body is ensured. For example, the use of a fastening sleeve with a bayonet lock and a corresponding design of the base body for receiving such a fastening element is conceivable. According to an advantageous development of the invention, the fastening element is formed by a valve nut that is coaxial with the suction cup and the base body and has a connecting section that can be screwed onto the base body in the area of ​​the outlet opening. The valve nut has a clamping projection that projects radially toward the suction cup axis.

[0024] According to this embodiment of the invention, the valve nut has an internal thread that can be screwed onto an external thread of the base body. A projection projecting from an inner surface of the clamping nut in the direction of the longitudinal axis of the teat forms a constriction with the valve body in the region of the teat section, at which constriction the teat is preferably partially squeezed, thereby achieving particularly good sealing of the interior of the teat from the environment. Furthermore, the clamping projection, in contact with a preferably provided teat flange, allows reliable frontal contact of the teat against the base body and / or between the base body and a valve body shoulder, thereby preventing fluid leakage in a particularly reliable manner, even when high internal pressure arises due to teat compression.

[0025] According to a particularly advantageous embodiment of the invention, the valve nut is designed such that in the position of use of the suction device, the clamping projection runs coaxially to the valve body and bears in the radial direction on the circumferential surface of the suction cup and in the axial direction on the suction cup flange, which on the side facing away from the clamping projection bears in the axial direction in sections on the end face of the base body and the valve body shoulder.

[0026] According to a further embodiment of the invention, it is further provided that the valve nut has a sealing lip on its end face opposite the clamping flange, which sealing lip preferably projects in the axial direction and is particularly preferably injection-molded. According to this embodiment of the invention, the valve nut has a seal on its end face facing the base body, which seal can be brought into contact with an outer wall of the drinking bucket when the suckling device is in the position of use on the drinking bucket, whereby a reliable seal between the suckling device and the drinking bucket in the area surrounding the base body can be achieved. This embodiment of the invention makes it possible to dispense with additional sealing elements for sealing the suckling device arranged in a container opening, wherein the suckling device can be reliably secured to the drinking bucket by means of the correspondingly designed valve nut.With regard to the position of use of the suction device on the drinking bucket, the base body has a shoulder that rests on the inside of the drinking bucket, whereby a reliable clamping connection of the suction device in the container opening is achieved, whereby a correspondingly liquid-tight connection is ensured by means of the valve nut.

[0027] To mount the teat assembly on the drinking bucket, the base body is inserted into the container opening from the inside of the drinking bucket, with the base body's shoulder resting against the inside of the drinking bucket. The valve body is then inserted into the recess in the base body on the outside of the drinking bucket. The teat can be pre-attached to the valve body or can be subsequently pushed onto the teat section. The valve nut then secures the teat to the base body, and the base body to the drinking bucket.

[0028] The valve nut can have a typical hexagonal shape, but also any other polygonal contour. Particularly preferably, the valve nut has a symmetrical triangular contour, which offers particularly good handling. In particular, the triangular contour allows for the transfer of high manual force during assembly, so no additional assembly tools are required. The outer contour of the nut can have an arcuate shape. This means that the corners of the nut are connected by arcuate sections.

[0029] The valve nut is particularly preferably made of a softer plastic, in particular TPU, TPE or TPV, which offers particularly good handling due to its special haptic properties.

[0030] The design of the valve body such that it allows a fluid flow directed toward the outlet opening of the suction device while blocking a backflow toward the inlet opening of the base body is, in principle, freely selectable. However, according to an advantageous embodiment of the invention, the valve body comprises a valve element that is adjustable between an open position, which allows a fluid flow through the valve body toward the outlet opening, and a closed position, which blocks a fluid flow through the valve body.

[0031] According to this embodiment of the invention, the valve body has an adjustable valve element, wherein the valve element automatically moves into the open position in the case of a liquid flow in the direction of the outlet opening and automatically moves into the closed position in the case of an oppositely directed liquid flow, in which it blocks a liquid flow through the valve body.

[0032] The design of the valve element is fundamentally freely selectable, and in a particularly simple design it can be designed as a ball, for example. According to a particularly advantageous embodiment of the invention, however, the valve element is formed by a valve tappet, a valve flap or a valve diaphragm. These valve elements are characterized in that they immediately interrupt the flow of liquid in a particularly reliable manner when a backflow occurs in the direction of the inlet opening, so that contamination of the drinking liquid in the drinking bucket is effectively prevented. The valve body therefore also particularly reliably prevents any liquid from getting behind the valve body when viewed in the direction of the inlet opening.an increased fluid pressure is applied due to suction compression, so that - viewed in the direction of the inlet opening - fluid leakage through the valve body is reliably prevented in the area behind the valve body.

[0033] The design of the base body between the inlet opening, which in the position of use of the suction device on a drinking container projects into the drinking liquid inside the drinking container, and the outlet opening is fundamentally freely selectable. According to a particularly advantageous embodiment of the invention, however, the base body has a longitudinal channel extending between the inlet opening and the recess of the base body, the longitudinal axis of which channel extends through the outlet opening. According to this embodiment of the invention, the orientation of the longitudinal channel with respect to the outlet opening is selected such that the longitudinal axis of the channel intersects the outlet opening, i.e. does not extend through sections of the base body. A corresponding design of the base body enables good accessibility of the longitudinal channel for cleaning it, e.g. with a rectilinear round brush, which may beTo clean the base body, the suction device can be inserted unhindered through the outlet opening into the longitudinal channel to remove any contaminants. The longitudinal extension of the longitudinal channel, i.e., without bends or kinks, also facilitates cleaning, allowing the suction device to be easily and reliably cleaned if necessary. All contaminants are reliably removed during cleaning.

[0034] A corresponding orientation of the longitudinal channel also makes it possible to align it, with respect to the installation position, towards a drinking trough base, so that the inlet opening is directly adjacent to the base of the drinking container, thus enabling essentially complete emptying of the drinking container. The orientation of the inlet opening relative to the outlet opening is fundamentally freely selectable. However, according to a particularly advantageous embodiment of the invention, it is provided that a plane spanned by the inlet opening extends essentially perpendicular to a plane spanned by the outlet opening. This embodiment of the invention leads to an essentially parallel alignment of the inlet opening relative to the base of a drinking container - with respect to the installation position of the suction device - whereby particularly reliable emptying of the container can be achieved.

[0035] To arrange the suction device on a drinking container, in particular within a through-opening of a drinking bucket, the base body has a shoulder for engagement with the inner wall of the container. This design of the base body enables reliable positioning of the suction device within an opening in the container wall, whereby the fastening element, in particular a valve nut, reliably presses the base body against the inner wall and thus can be arranged on the inner wall of the container in a liquid-tight manner.

[0036] According to a further embodiment of the invention, it is further provided that the base body has a gripping element protruding from the rear, in particular a holding fin, which preferably extends perpendicular to the plane spanned by the inlet opening and the outlet opening. The gripping element allows a user to comfortably grip the suction device and thus easily arrange it on the drinking container and fasten it by means of a fastening element, in particular a valve nut. A fin extending - with respect to the installation position - towards the bottom of the drinking container makes it particularly easy to grip the base body and align it within the drinking container in an optimal position for removing the drinking liquid. Furthermore, the longitudinal extension of the holding fin prevents liquids from accumulating in the area of ​​the base body.

[0037] The invention further achieves this objective by means of a drinking container, in particular a drinking bucket, with a suckling device arranged in a container opening, which is designed in the manner described above according to the invention or in a further development. The drinking container according to the invention is characterized in that, during the suckling of a livestock, liquid leakage from the drinking container or in the connection area between the suckling device and the drinking container is reliably prevented in the region of the container device.

[0038] According to a particularly advantageous embodiment of the invention, it is provided that the valve nut rests with its sealing lip on an outer wall of the drinking container in the position of use, whereby a particularly reliable seal can be achieved.

[0039] Embodiments of the invention are explained below with reference to the drawings. In the drawings: Fig. 1 shows an exploded view of a first embodiment of a suction device; Fig. 1a a sectional view of the suction device of Fig. 1; Fig. 2 shows an exploded view of a second embodiment of the suction device; Fig. 2a a sectional view of the suction device of Fig. 2; Fig. 3 shows an exploded view of a third embodiment of the suction device; Fig. 3a a sectional view of the suction device of Fig. 3; Fig. 4 a sectional view of a base body of the Fig. 1 to 3 shown suction device; Fig. 5 a sectional view of a drinking bucket with a Fig. 1 shown suction device and Fig. 6 a perspective view of the drinking bucket with sucking device.

[0040] Fig. Figure 1 shows a first embodiment of a suction device 1a in an exploded view. The suction device 1a comprises a teat 2 made of an elastic material with an outlet opening 3 and an inlet opening 4. In a Fig. 1 and in Fig. 5 and Fig. In the assembled position of use of the suckling device 1a shown in Figure 6, in which the suckling device is arranged on a drinking container 18, the suckling device 1a extends through a container opening 19 of the drinking container 18, so that an animal to be suckled can remove a drinking liquid arranged within the drinking container 18 via the outlet opening 3.

[0041] To secure the suction device 1a to the drinking container 18, the suction device 1a has a base body 5 which extends through the container opening 19 and rests on the inside with a circumferential shoulder 25 against the inner wall of the container. To secure the teat 2 to the base body 5 of the suction device 1a, a valve nut 8 is used which, in the position of use, is screwed onto an external thread 26 of the base body 5 against an outer side of the drinking container 18. In the position of use, the valve nut 8 pulls the base body with the shoulder 25 against the inner wall of the container, with the valve nut 8 resting on the outside of the drinking container 18 with a circumferential sealing lip 27 with its end face facing the base body 5.

[0042] The valve nut 8 also serves to secure the suction cup 2 to the base body 5. In the operating position, the valve nut 8 is arranged coaxially with a suction cup flange 15 located in the region of the inlet opening 4. When the valve nut 8 is mounted on the base body 5, a clamping projection 16 of the valve nut 8, projecting radially towards the suction cup 2, rests with a radially oriented contact surface on the circumferential surface of the suction cup 2 and with an end face oriented in the longitudinal axis direction of the suction cup against the end face of the suction cup flange 15, pressing it against an end face 17 of the base body 5. The valve nut 8 also causes an end face section of the suction cup flange 15 to bear against a valve body shoulder 12 of a valve body 9a.

[0043] The valve body 9a comprises a base body section 10 and a suction section 11. The base body section 10 has a cross-section adapted to the cross-section of a recess 13 of the base body 5 for backlash-free arrangement. This cross-section is larger than that of the suction section 11, so that the suction section 11 and the base body section 10 are connected to each other via a valve body shoulder 12. In the operating position, the base body section 10 is arranged within a recess 13 on the base body 5 and rests axially against a shoulder 14 within the recess 13. In the mounted position of the valve body 9a in the recess 13, the valve body shoulder 12 is substantially flush with the end face 17 of the base body 5.

[0044] In the operating position, the end face of the suction cup flange 15 facing the base body 5 rests against both the valve body shoulder 12 and the end face 17 of the base body 5. At the same time, in the operating position, the suction cup 2 is arranged coaxially with a suction cup section 11 of the valve body 9a in the region of its inlet opening 4. In the mounted position of the valve nut 8 on the base body 5, the clamping projection 16 forms a constriction with the suction cup section 11 in the radial direction, sealing the suction cup 2 against the valve body 9a.

[0045] Furthermore, due to its axial engagement with the teat flange 15, the clamping projection 16 presses the teat flange 15 against the valve body shoulder 12 and against the end face 17 of the base body 5 surrounding the recess 13. In the assembled position, a clamping ring 24 protruding from the end face 17 presses into the end face of the teat flange 15, thus increasing the positional stability of the teat 2 on the base body 5 and the tightness of the teat device 1a against liquid escaping from its interior. The tightness in the use position of the teat device 1a on the drinking container 18 is additionally increased by the sealing lip 27 on the valve nut 8, which protrudes in the direction of the base body 5 and rests against the outer wall of the drinking container 18 in the assembled position of the teat device 1a.

[0046] During the suckling process of the animal to be suckled, the drinking liquid arranged in the drinking container 18 passes through an inlet opening 6 of the base body 5 through a longitudinal channel 22 into the region of the recess 13 on the base body 5, from where the drinking liquid then passes through the outlet opening 7 into the teat 2. The longitudinal channel 22 runs along the base body 5 such that its longitudinal axis extends completely through the plane spanned by the outlet opening 7. This means that in its imaginary extension, the cross-section of the longitudinal channel 22 does not intersect the outer wall of the base body 5 delimiting the recess 13, thereby ensuring good accessibility of the longitudinal channel 22 for cleaning tools, e.g. a cleaning brush.

[0047] At the Fig. 4, the plane defined by the inlet opening 6 runs substantially perpendicular to the plane defined by the outlet opening 7, so that the inlet opening 6 is arranged substantially parallel to a bottom of the drinking container 18, thereby enabling good, substantially complete removal of the liquid from the drinking container 18. A gripping element arranged on the rear of the base body 5 and designed as a holding fin 21 allows for good gripping of the base body 5 and reliable alignment and mounting of the sucking device 1a on the drinking container 18 within the container opening 19.

[0048] In the Fig. 1 and Fig. In the embodiment of the sucking device 1a shown in Fig. 1a, the valve body 9a has a valve element designed as a membrane 20a, which releases a flow of the drinking liquid in the direction of the outlet opening 3 of the teat 2, but blocks an opposite flow of the drinking liquid.

[0049] Two further embodiments of the suction device 1b, 1c are shown in the Fig. 2, Fig. 2a and Fig. 3, Fig. 3a. These differ from the Fig. 1 shown suction device 1a in that the valve body 9b of the suction device 1b is formed by a flap 20b which is mounted on a holder 23 of the valve body 9b and as in the Fig. 1, the embodiment of the suction device 1a releases a liquid flow in the direction of the outlet opening, but blocks an opposite liquid flow.

[0050] In the Fig. In the embodiment of the suction device 1c shown in Figure 3, the valve body 9c has a valve tappet 20c that is adjustable in the longitudinal axis direction and also releases a fluid flow toward the outlet opening 3, but blocks an opposite fluid flow through the valve body 9c. The valve tappet 20c and the suction section 10 form a corresponding valve seat. List of reference symbols 1a, 1b, 1c Sucking device 2 suction cups 3 Exit opening 4 Entrance opening 5 basic bodies 6 Inlet opening 7 Outlet opening 8 Fastener / valve nut 9a, 9b, 9c valve body 10 Main body section 11 Suction section 12 Valve body shoulder 13 Recess 14 paragraph 15 Suction flange 16 clamping projection 17 Front face of base body 18 drinking containers 19 Container opening 20a, 20b, 20c Valve element (diaphragm, flap, tappet) 21 Handle element / holding fin 22 Longitudinal channel 23 Bracket 24 clamping ring 25 paragraph 26 external threads 27 Sealing lip

Claims

[1] Sucking device for connection to a drinking container, in particular a drinking bucket, with - a suction device (2) with an outlet opening (3) and an inlet opening (4), - a base body (5) with an inlet opening (6) and an outlet opening (7), - a fastening element (8) for releasably securing the suction device (2) arranged with its inlet opening (4) in the region of the outlet opening (3) of the base body (5) to the base body (5) and - a valve body (9a, 9b, 9c) releasing a fluid flow in the direction of the outlet opening (3) and blocking it in the direction of the inlet opening (6), characterized by that the valve body with - a base body section (10) within a recess (13) of the base body (5) adjacent to the outlet opening (7) and - a suction section (11) is arranged in the region of the inlet opening (4) within the suction device (2). [2] Sucking device according to claim 1, characterized by that the base body section (10) has a valve body shoulder (12) between the base body section (10) and the suction cup section (11) forming a larger outer diameter than the outer diameter of the suction cup section (11), wherein the outer diameter of the base body section (10) is adapted to the inner diameter of the recess (13) and the outer diameter of the suction cup section (11) is adapted to the inner diameter of the suction cup (2) in the region of the inlet opening (4) [3] Sucking device according to claim 1 or 2, characterized by that the base body section (10) within the recess (13) rests against a stop opposite the outlet opening (7), in particular a circumferential shoulder (14). [4] Sucking device according to one or more of the preceding claims, characterized by that the suction cup (2) rests against the valve body shoulder (12) in the area of ​​the inlet opening (4). [5] Sucking device according to one or more of the preceding claims, characterized by that the suction cup (2) in the region of the inlet opening (4) rests on the end face of an end surface (17) of the base body (5) which delimits the outlet opening (7) and is adjacent to the recess (13). [6] Sucking device according to one or more of the preceding claims, characterized by that the suction cup (2) has a suction cup flange (15) in the area of ​​the inlet opening (4). [7] Sucking device according to one or more of the preceding claims, characterized by that the base body (5) has a clamping body, in particular a clamping ring (24), protruding from the end face facing the suction cup (2). [8] Sucking device according to one or more of the preceding claims, characterized bythat the fastening element is formed by a valve nut (8) which is coaxial with the suction cup (2) and the base body (5) and which can be screwed onto the base body (5) in the region of the outlet opening (7) and which has a clamping projection (16) projecting radially in the direction of the suction cup axis. [9] Sucking device according to one or more of the preceding claims, characterized by in the position of use of the suction device (1a, 1b, 1c), the clamping projection (16) runs coaxially to the valve body (9a, 9b, 9c) and bears in the radial direction against the peripheral surface of the suction cup (2) and in the axial direction against the suction cup flange (15), which, on the side facing away from the clamping projection (16), bears in the axial direction in sections against the end face (17) of the base body (5) and against the valve body shoulder (12). [10] Sucking device according to one or more of the preceding claims, characterized bythat the valve nut (8) has a sealing lip (27) on its end face opposite the clamping flange (16), which preferably projects in the axial direction. [11] Sucking device according to one or more of the preceding claims, characterized by in that the valve body (9a, 9b, 9c) has a valve element (20a, 20b, 20c) which is adjustable between an open position releasing a liquid flow through the valve body (9a, 9b, 9c) in the direction of the outlet opening (3) and a closed position blocking a liquid flow through the valve body (9a, 9b, 9c) in the direction of the inlet opening (6). [12] Sucking device according to one or more of the preceding claims, characterized by that the valve element is formed by a valve tappet (20c), a valve flap (20b) or a valve membrane (20a). [13] Sucking device according to one or more of the preceding claims, characterized bythat the base body (5) has a longitudinal channel (22) extending between the inlet opening (6) and the recess (13), the longitudinal axis of which extends through the outlet opening (7). [14] Sucking device according to one or more of the preceding claims, characterized by that a plane spanned by the inlet opening (6) extends substantially perpendicular to a plane spanned by the outlet opening (7). [15] Sucking device according to one or more of the preceding claims, characterized by that the base body (5) has a shoulder (25) for engagement with an inner wall of the container. [16] Sucking device according to one or more of the preceding claims, characterized by that the base body (5) has a rear-projecting grip element, in particular a holding fin (21), which preferably extends perpendicular to the plane spanned by the inlet opening (6) and the outlet opening (7). [17] Drinking containers, in particular drinking buckets with a sucking device (1a, 1b, 1c) arranged in a container opening (19), characterized by that the suction device (1a, 1b, 1c) is designed according to one or more of claims 1 to 16. [18] Drinking container according to claim 17, characterized by that the valve nut (8) with its sealing lip (27) rests against an outer wall of the drinking container (18) in the position of use.

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