Assembly with container and tamper-evident device

Abstract

The invention relates to an assembly having a container (3) which has a container opening through which a deposit can be supplied to the container (3) or can be extracted from the container (3). The container opening can be closed with closure means (27) and can be secured with a tamper-evident device (9). The tamper-evident device (9) has a securing body (10) which has a lower part (13) and an upper part (12) which is movably supported on the lower part (13). The closure piece (11) is supported on the securing body which is fixed on the immersion tube (4). On release of the tamper-evident device (9), a relative movement between the upper part (12) and the lower part (13) takes place, whereby a section of the closure piece (11) is separated and supplied to a collection chamber (21) of the lower part (13).

Description

TECHNICAL FIELD

[0001] The invention relates to an assembly having a container and a tamper-evident device.

[0002] Such containers are generally used for storing a storage good, in particular a liquid. The container generally has a container opening through which the storage good can be extracted from the container or supplied to the container. The container opening can be closed with closure means and secured against unauthorized access with a tamper-evident device.

[0003] In particular, such an assembly having a container can be a component of an extraction system. BACKGROUND

[0004] Such an extraction system is known from EP 0 977 702 B1. The extraction system is used for filling and emptying containers, in particular drums filled with a liquid chemical. The containers each have an immersion tube through which a liquid stored in the container can be extracted and through which the liquid can be supplied to the container. The extraction system has an extraction head which is connected to the immersion tube of each container.

[0005] The extraction or, if necessary, the supply of the liquid is then carried out by means of the extraction head. For this purpose, a pump is connected via the extraction head in order to carry out the extraction or supply of the liquid.

[0006] The liquid stored in the container is generally a special chemical in liquid form.

[0007] These special chemicals require, on the one hand, a high degree of purity, i.e. contaminants must be kept away from the chemicals. In addition, the special chemicals can be hazardous substances, so that for this reason an uncontrolled outflow of the liquid must be avoided.

[0008] These requirements also apply in particular to the transport of the containers. After the containers have been filled or emptied, the extraction head is removed. The container is then closed with a closure. As a tamper protection device, a tamper-evident device having a plombe is then applied to the immersion tube closed with the closure.

[0009] The known tamper-evident device has two half-shells which can be flipped over relative to one another, which are placed onto the immersion tube and then closed and connected with the plombe. As a result, the container can only be opened by breaking the plombe, so that it can be determined whether the container has been opened without authorization.

[0010] The disadvantage of such a tamper-evident device is that it protrudes far above the upper side of the immersion tube. As a result, the tamper-evident device can easily be broken off when handling the container, in particular when stacking the containers. It is furthermore disadvantageous that parts of the tamper-evident device can fall uncontrollably into the container into contact with the liquid or into the surroundings of the container when the tamper-evident device is opened and the plombe is broken. SUMMARY

[0011] It is the task of the present application to provide an improved tamper protection for a container of the type mentioned at the outset.

[0012] In order to solve this task, an assembly having a container and a tamper protection according to the application is provided. Advantageous embodiments and expedient refinements of the application are described in the subsequent description.

[0013] The application relates to an assembly having a container, which has a container opening through which a deposit can be supplied to the container or extracted from the container. The container opening can be closed using closure means and secured using a tamper protection The tamper protection has a securing body, which has a lower part and an upper part movably supported on the lower part, and a closure element, which is supported on the securing body fixed on the immersion tube. Upon deactivation of the tamper protection, a relative movement between the upper part and the lower part takes place, whereby a section of the closure element is separated and supplied to a collection chamber of the lower part.

[0014] According to a first variant of the application, the immersion tube is supported in the container, on which an extraction head of an extraction system can be connected. In order to supply a liquid forming a deposit to the container or extract the liquid from the container, the immersion tube can be closed with the extraction head removed and secured using a tamper protection.

[0015] The container according to the application thus has an immersion tube to which an extraction head of an extraction system can be connected in order to supply a liquid to the container or extract the liquid from the container.

[0016] Here, the container forms a transportable unit. In order to prevent tampering, the container is closed and secured using a tamper protection. The tamper protection according to the application has a securing body according to the application, which has a lower part for fixing on the immersion tube and an upper part movably supported relative to the lower part. For the tamper protection securing, the upper part and the lower part of the securing body are connected with a closure element.

[0017] According to the application, the tamper protection is designed in such a way that, in order to open the tamper protection, the upper part is forced to move relative to the lower part, so that the closure element is broken, i.e. broken open. A tamper protection is thus provided, because with the broken open closure element it can be immediately recognized that an attempt has been made, in particular without authorization, to open the tamper protection and to gain unauthorized access to the container.

[0018] According to the application, a collection chamber is provided in the lower part of the safety body. Upon release of the tamper-proof device, by relative movement between the upper part and the lower part, the section of the closure piece is separated and collected in the collection chamber. Thereby, an uncontrolled falling of the section of the closure piece is avoided, in particular an undesired contact of the section with the container liquid is avoided, whereby the function of the tamper-proof device is improved and thus the function of the container secured with the tamper-proof device is improved.

[0019] Advantageously, the closure piece has an upper section and a lower section, wherein, with the tamper-proof device fixed on the dip tube, the upper section of the closure piece is supported in the receiving portion of the upper part and the lower section of the closure piece extends into the region of the collection chamber.

[0020] If the tamper-proof device is attempted to be opened with the closure piece fitted on the safety body, the lower part is separated by relative movement between the upper part and the lower part and collected in the collection chamber. The upper section remains in the receiving portion, so that also the upper section of the closure piece does not uncontrolledly detach.

[0021] Advantageously, the receiving portion is formed by a recess on the upper side of the upper part.

[0022] Here, the edge of the upper section of the closure piece lies closely against the edge of the recess of the upper part.

[0023] Thus, the upper section of the closure piece is sufficiently positionally fixed in the receiving portion, so that it remains on the upper part when the closure piece is broken.

[0024] Advantageously, upon relative movement of the upper part with respect to the lower part, the lower section is guided to mechanical separation means and is separated therefrom from the upper section.

[0025] Suitably, the mechanical separation means are formed by a stop extending into the collection chamber.

[0026] In particular, the stop consists of a web in the lower part.

[0027] This ensures that upon relative movement of the upper part with respect to the lower part, the lower section of the closure piece is structurally very simply and at the same time reliably separated.

[0028] According to an advantageous configuration, on the peripheral surface of the lower part, a discharge opening is provided, through which the separated lower section of the closure piece can be guided out, wherein, in the discharge position of the upper part with respect to the lower part, the collection chamber opens at the discharge opening. In the locked position, a locking section on the lower side of the upper part locks the discharge opening.

[0029] Thus, after removal of the safety body from the dip tube, by turning the upper part into the discharge position, the separated lower section of the closure piece can be guided out and controlledly removed via the discharge opening.

[0030] According to a first variant, the immersion tube can be closed with a closure. The tamper-proof device can be applied to the immersion tube closed with the closure.

[0031] The closure and the tamper-proof device then form a separate unit.

[0032] According to a further variant, the tamper-proof device constitutes the closure means for the immersion tube.

[0033] The tamper-proof device thus fulfils not only the function of the operational safety protection, but at the same time forms the closure for the immersion tube, so that in this case a separate closure for the immersion tube is not required.

[0034] Advantageously, the lower part of the safety body has fixing means for fixing on the immersion tube.

[0035] These fixing means match the fastening means on the immersion tube, which are likewise used for fixing the extraction head.

[0036] If the extraction head is fixed by axial displacement in order to form a form- or force-locked connection between the extraction head and the immersion tube, the tamper-proof device is advantageously fixed on the immersion tube in the same way.

[0037] According to a further variant, the extraction head is fixed screwed on the immersion tube. The protrusion is then fixed screwed on the immersion tube, expediently by means of the tamper-proof device. For this purpose, the fixing means are formed by an outer thread.

[0038] The safety body can then be fixed screwed on an inner thread of the immersion tube on the outer thread on the lower part, which is advantageously also used for fixing the extraction head.

[0039] In matching thereto, the upper part of the safety body is rotatably supported on the lower part.

[0040] The upper part and the lower part are arranged coaxially along a common axis of symmetry extending in the axial direction, wherein the upper part and the lower part are substantially rotationally symmetrical about the axis of symmetry. The axis of symmetry also forms an axis of rotation about which the upper part can be rotated relative to the lower part. When the tamper-proof device is to be unscrewed from the immersion tube, a rotation is enforced, whereby the closure is enforced to be broken, whereby a reliable operational safety protection is obtained.

[0041] According to an expedient configuration, the upper part is configured disc-shaped, an edge region of which rests on an upper edge of the immersion tube when the tamper-proof device is fixed on the immersion tube.

[0042] It is expedient here that the lower part is a rotationally symmetrical hollow body, the collection chamber opening out on the upper side of which, and the upper part supported on the lower part projects with its edge region in the radial direction beyond the peripheral surface of the lower part.

[0043] Thus, in the case of the tamper-evident device being fitted on the immersion tube, only the upper part of the flat configuration protrudes above the upper edge of the immersion tube. This is advantageous, since the tamper-evident device is thus not disturbed when handling the container and there is also no risk of the tamper-evident device becoming detached from the container.

[0044] According to a second variant of the application, the closure means can be fixed in the container opening of the container. The tamper-evident device is an integral part of the closure means.

[0045] Hazardous substances, for example special chemicals, which are preferably present in liquid form, can be stored in the container.

[0046] The container can in particular be configured in the form of a drum.

[0047] Advantageously, the closure means have a closure body which can be fixed in the container opening. The closure body has a central, hollow-cylindrical receiving portion which extends through the closure body in the axial direction, in which receiving portion the safety body of the tamper-evident device can be supported.

[0048] Thus, the safety body forming the tamper-evident device forms a component of the closure means.

[0049] In principle, the closure means can be fixed in the container opening by means of a movement. The safety body can then be correspondingly secured in the closure body by means of a movement.

[0050] It is particularly advantageous if the closure body can be fixed on the container opening by means of a screw connection.

[0051] According to one structurally advantageous configuration, a hollow-cylindrical projection with an external thread is provided which protrudes from the upper side of the container and which delimits the container opening. The closure body can be fixed on the projection.

[0052] To this end, the closure body has a hollow-cylindrical side wall. An internal thread is provided on the inside of the container, which can be screwed onto the external thread of the container.

[0053] Corresponding to the screw connection between the container opening and the closure body, an external thread is provided on the outside of the lower part of the safety body, which can be screwed into the internal thread of the delimiting receiving portion of the closure body.

[0054] Advantageously, in the case of the safety body being supported in the bore of the closure body, the upper part of the safety body is exposed on the upper side of the closure body.

[0055] Here, an external thread is provided on the outside of the lower part of the safety body, which can be screwed into the internal thread of the delimiting receiving portion of the closure body.

[0056] The completely sealed, airtight connection between the closure body and the safety body can then be achieved in a simple manner, such that a seal is provided on the underside of the edge region of the upper part, which will seal with the joint of the closure body.

[0057] Advantageously, the seal is formed by a sealing ring which surrounds in the circumferential direction of the safety body.

[0058] According to an advantageous embodiment, a receiving portion is provided on the upper side of the upper part of the safety body, on which the handling means can be supported in a torsion-proof manner.

[0059] In the case of a container which is a bucket, the handling means are advantageously configured as a sleeve wrench / bucket key.

[0060] The handling means or sleeve wrench serve to close or open the container opening by means of the closure means.

[0061] The working principle when opening the container opening is then as follows: when the handling means are manipulated, the upper part is first rotated relative to the lower part of the safety body, thereby separating the lower section of the closure. When the handling means are further manipulated, the closure is unscrewed from the container opening.

[0062] The closure means of the tamper-proof device are thus protected against manipulation. BRIEF DESCRIPTION OF DRAWINGS

[0063] The application is explained below with the aid of the drawings. The drawings show:

[0064] Figure 1 : Schematic view of an extraction system with an associated container.

[0065] Figure 2a : Immersion tube with a container having an associated closure.

[0066] Figure 2b : Immersion tube according to Figure 2a with a closure inserted.

[0067] Figure 2c : Assembly according to Figure 2b with a safety body of a tamper-proof device arranged on the immersion tube and an associated closure.

[0068] Figure 2d : Assembly according to Figure 2c with a closure arranged on the safety body.

[0069] Figure 3a : Figure 2c and 2d : First perspective view of the components of the tamper-proof device according to

[0070] Figure 3b Figure 2c 2d second perspective view of a component of the tamper-evident device.

[0071] Figure 4 cross-sectional view of the tamper-evident device according to figure 3.

[0072] Figures 5a-5e different operating stages of the tamper-evident device according to Figure 4

[0073] Figure 6 embodiment with a container in the form of a drum.

[0074] Figure 7 detail view of a partial detail of the container according to Figure 6

[0075] Figure 8 cross-sectional view of the assembly according to Figure 7

[0076] Figure 9 Figure 7 8 individual view of the safety body of the assembly according to

[0077] Figure 10 cross-sectional view of the safety body according to Figure 9

[0078] safety body according to Figure 11 Figure 9 10 DETAILED DESCRIPTION

[0079] Figure 1 An extraction system 1 is shown schematically. The extraction system 1 comprises an extraction head 2 which can be mounted on a container 3 which can be configured in particular in the form of a drum. A liquid is stored in the container 3. The liquid stored in such a container 3 is in particular a special chemical in liquid form.

[0080] The container 3 has an immersion tube 4. The immersion tube 4 is supported in a plug 5 which is located in a container opening of the container 3 and is thus firmly connected to the container 3. The longitudinal axis of the immersion tube 4 extends in the vertical direction.

[0081] The extraction head 2 serves to extract the liquid from the container 3. Equally, the extraction head can be used to fill the container 3. To this end, the extraction head 2 has a liquid interface 2a at its upper end. Connected to the liquid interface 2a is a line 6 which leads to a pump 7. The line 6 can be configured in the form of a hose.

[0082] The pump 7 is controlled by a control unit which is not shown.​​​​​​​​​​

[0083] Container 3 forms a transportable unit. To ensure the safe transport of container 3, the immersion tube 4 is secured, such as... Figures 2a to 2d As shown. The immersion tube 4 has a head 4a, and a tube body 4b is connected to the lower side of this head. To secure the container 3 for transport, when the extraction head 2 is removed from the immersion tube 4, the closure 8 is inserted into the head 4a of the immersion tube 4 and secured there, particularly by screwing. Figure 2a , Figure 2b ).

[0084] Apply the anti-opening device 9 to the thus sealed immersion tube 4. Figure 2c , 2d (See the illustration). First, the safety body 10 of the anti-opening device 9 is preferably fixed to the head 4a of the immersion tube 4 by a threaded connection. Figure 2c Then, the sealing element 11 is fixed to the locking body 10 of the anti-opening device 9, preferably by snapping it into the hole 19 in the locking body 10. Figure 2c and 2d The anti-opening device 9, constructed in this way, forms an anti-operation protection device, because the container 3 can only be opened if the seal 11 is broken beforehand.

[0085] Figure 3a , 3b The various components of the anti-opening device 9 according to the present invention are shown. Figure 4 The assembled anti-tampering device 9 is shown.

[0086] The sealing element 11 has a rotationally symmetrical, basically mushroom-shaped geometry. The sealing element 11 here has a disc-shaped upper section 11a and a lower section 11b connected thereto. The diameter of the upper section 11a is significantly larger than the diameter of the lower section 11b.

[0087] The safety body 10 consists of an upper portion 12 forming a cover and a lower portion 13 forming a bottom, the two portions having a rotationally symmetrical profile.

[0088] The upper portion 12 is substantially disc-shaped, with a protrusion 14, equipped with a locking device 14a, protruding from the lower side of the upper portion. The protrusion 14 can engage with the assembly of the lower portion 13, thereby assembling the safety body 10. The protrusion 14 constitutes a rotational support, allowing the upper portion 12 to rotate relative to the lower portion 13 about a rotation axis extending in the axial rotational direction of the safety body 10.

[0089] In addition, the locking section 16 protrudes from the lower side of the upper portion 12 and extends in the angular region of the upper portion 12.

[0090] On the outer side of the lower part 13 there is an outer thread 17 with which the safety body 10 can be screwed into the immersion tube 4. On the underside of the lower part 13 there is a recess 18 for receiving the closure 8 of the immersion tube 4.

[0091] The upper part 12 of the safety body 10 has a bore 19 into which the lower section lib of the closure 11 can be introduced. The bore 19 is located in a recess 20 on the upper side of the upper part 12, which forms a receptacle for the upper section of the closure 11. Here, the upper section 11a is supported with little play in the recess 20 Figure 2d and Figure 4 ). The lower section lib of the closure 11 projects into a collection chamber 21 of the lower part 13 of the safety body 10.

[0092] A web 22 arranged on the lower part 13 projects into this collection chamber 21.

[0093] On the peripheral surface of the lower part 13 there is a discharge opening 23 Figures 5a to 5e ). Depending on the rotational position of the upper part 12 relative to the lower part 13, the collection chamber 21 opens out at the discharge opening 23, or the closure section 16 closes the discharge opening 23.

[0094] In order to secure the container 3 for transport, the closure 8 is fitted on the immersion tube 4 Figure 2a , 2b ) and then the tamper-evident device 9 is fitted on the immersion tube 4 Figure 2c , 2d ).

[0095] With the tamper-evident device 9 fitted on the immersion tube 4, the upper part 12 of the safety body 10 rests on the upper edge of the head 4a of the immersion tube 4, while the lower part 13 of the safety body 10 lies completely in the head 4a of the immersion tube 4 Figure 4 ). As Figure 4 further shown, the upper section of the closure 11 lies in the recess 20 on the upper part 12, while the lower section of the closure 11 projects into the collection chamber 21 of the lower part 13. Figure 5a This situation is also shown.

[0096] In order to open the container 3, the safety body 10 must first be unscrewed from the head 4a of the immersion tube 4. To this end, the operator turns the upper part 12 of the safety body 10 in the opening direction. Since the upper part 12 is rotatably supported on the lower part 13, only the upper part 12 is initially turned, to be precise until the lower section lib of the closure 11 rests on one of the webs 22 Figure 5b ).

[0097] If the upper part 12 is then turned further, the lower section 1 lb detaches at the edge of the web 22, i.e. the web 22 constitutes a mechanical detachment means with a breaking edge. Figure 5c The detached lower section 1 lb of the closure 11 is shown. If the upper part 12 is then turned further, the latching section 16 rests on the web 22, so that the lower part 13 is turned together with the upper part 12 when the upper part 12 is turned further and thereby unscrews the safety body 10 from the head 4a of the immersion tube 4.

[0098] Figure 5d , 5e The safety body 10 is shown unscrewed from the immersion tube 4. Then, as shown in Figure 5d , the upper part 12 is turned relative to the lower part 13, so that the collection chamber 21 opens out at the discharge opening 23 in the extracted position. Then, as shown in Figure 5e , the lower section 1 lb of the closure 11 can be guided out and controlled removal through the discharge opening 23.

[0099] Figures 6 to 11 A variant of the assembly according to the application is shown. This assembly has a bucket 24 Figure 6 for receiving a deposit, in particular a liquid. There is a container opening on the upper side of the bucket 24 in the form of a hollow-cylindrical projection 25 with an external thread 31 projecting from the upper side of the bucket 24. As shown in Figure 6 and Figure 7 , a closure means 27 can be screwed onto the projection 25.

[0100] The closure means 27 has a closure body 28 in the form of a lid. There is an internal thread 29 on the inside of the cylindrical side wall of the closure body 28, with which the closure body 28 can be screwed onto the projection 25.

[0101] The closure body 28 has a central, axially extending hollow-cylindrical receiving part 30 in which the safety body 10 of the tamper-proof device 9 is supported.

[0102] The safety body 10 has a structure which essentially corresponds to the safety body 10 of Figures 3 to 5. Correspondingly, the safety body 10 has an upper part 12 and a lower part 13 rotatably supported in the upper part 12. The rotational support is again implemented by a projection 14. The lower part 13 has an external thread 31 which screws into an internal thread 32 of the hollow-cylindrical projection 25, thereby fixing the safety body 10 on the closure body 28 Figure 8 .

[0103] The upper part 12 of the safety body 10 projects in the axial direction beyond the lower part 13 and rests on the closure body 28. On the underside of the edge of the upper part 12, a sealing ring 33 extends annularly in its peripheral direction and seals the joint between the safety body 10 and the closure body 28 in an airtight manner.

[0104] Corresponding to the insurance body 10 in Figures 3 to 5, Figures 8 to 11 The safety body 10 also has a sealing member 11, which has an upper section 11a resting on the upper side of the upper part 12 and a lower section 11b connected thereto, the diameter of which is significantly smaller than that of the upper section.

[0105] The lower section 11b of the sealing member 11 extends into the collection chamber 21 through an opening in the upper part 12, which is open on the upper side of the lower part 13 facing the upper part 12. Similar to the embodiment shown in Figures 3 to 5, a web plate 22 provided on the lower part 13 extends into the collection chamber.

[0106] In other respects, Figures 8 to 10 The structure of the insurance body 10 is also correspondingly based on... Figures 5a to 5e The implementation method.

[0107] As from Figures 8 to 11 As can be seen, four identical recesses 34, each staggered by 90° from each other, are provided on the upper side of the upper part 12 of the safety body 10 in an outward manner.

[0108] These recesses 34 form a receiving portion for securing an operating device in the form of a socket wrench 35. Figure 11 The socket wrench 35 has four identical protrusions 36 arranged at 90° intervals on its underside, corresponding to the recess 34, with the protrusions' outlines matching the outlines of the recess 34. To secure the socket wrench 35 to the safety body 10, the protrusions of the socket wrench 35 are inserted into the recess 34 of the safety body 10, where they are supported with minimal clearance.

[0109] With the socket wrench 35 fixed to the safety body 10, the closure device 27 can be fixed in the container opening or released by rotating the socket wrench 35.

[0110] If the sealing device 27 is fixed at the container opening, it is protected against operation by the safety body 10 forming the anti-opening device 9. That is, if the sealing device 27 is opened by rotating the socket wrench 35 fixed to the safety body 10, the upper part 12 first rotates relative to the lower part 13 of the safety body 10, thereby corresponding to... Figures 5a to 5e The lower section 11b of the sealing member 11 is separated from the upper section 11a of the sealing member 11 and received in the collection chamber 21. Then, by further turning the socket wrench 35, the sealing device 27, i.e. the sealing body 28 with the safety body 10, is unscrewed from the container opening.

[0111] Corresponding to Figures 5a to 5eIn an embodiment of the application, the safety body 10 can be unscrewed around the closure body 28 after unscrewing the closure means 27. The upper part 12 can then be turned relative to the lower part 13 of the safety body 10 so that the lower section of the closure plug 11 is guided out through the discharge opening 23 and removed in a controlled manner, as shown in Figure 5e

[0112] List of reference signs

[0113] (1) extraction system

[0114] (2) extraction head

[0115] (2a) liquid interface

[0116] (3) container

[0117] (4) immersion tube

[0118] (4a) head

[0119] (4b) tube body

[0120] (5) plug

[0121] (6) line

[0122] (7) pump

[0123] (8) closure

[0124] (9) tamper-evident means

[0125] (10) safety body

[0126] (11) closure plug

[0127] (11a) upper section

[0128] (11b) lower section

[0129] (12) upper part

[0130] (13) lower part

[0131] (14) protrusion

[0132] (14a) latching means

[0133] (15) recess

[0134] (16) locking section

[0135] (17) external thread

[0136] (18) cut-out

[0137] (19) hole

[0138] (20) indentation ​

[0139] (21) collection chamber

[0140] (22) web

[0141] (23) discharge opening

[0142] (24) tub

[0143] (25) protrusion

[0144] (26) external thread

[0145] (27) closure means

[0146] (28) closure body

[0147] (29) internal thread

[0148] (30) hollow cylindrical receptacle

[0149] (31) external thread

[0150] (32) internal thread

[0151] (33) sealing ring

[0152] (34) recess

[0153] (35) socket wrench

[0154] (36) protrusion

Claims

1. An assembly having a container (3) with a container opening through which a deposit can be supplied to the container (3) or can be extracted from the container (3), wherein The container opening can be closed with a closure device (27) and can be secured with a tamper-proof device (9), characterized in that the tamper-proof device (9) has a securing body (10) with a lower part (13) and an upper part (12) movably supported on the lower part (13), and a closure element (11) supported on the securing body (10) fixed on the immersion tube (4), in the case of release of the tamper-proof device (9) a relative movement between the upper part (12) and the lower part (13) takes place, whereby a section of the closure element (11) is separated and supplied to a collection chamber (21) of the lower part (13), wherein the upper part (12) of the securing body (10) is rotatably supported on the lower part (13) about an axis of rotation extending in the axial direction of the securing body (10).

2. The assembly of claim 1, wherein, The upper part (12) is configured disk-shaped and / or the lower part (13) is a rotationally symmetrical hollow body, the collection chamber (21) opens on the upper side of the hollow body, and the upper part (12) supported on the lower part (13) protrudes in its edge region in the radial direction beyond the peripheral surface of the lower part (13).

3. The assembly of claim 1, wherein, The closure element (11) has an upper section (11a) and a lower section (11b), wherein in the case of the securing of the tamper-proof device (9) on the closure device (27) the upper section (11a) of the closure element (11) is supported in a receiving portion of the upper part (12) and the lower section (11b) of the closure element (11) extends into the region of the collection chamber (21).

4. The assembly of claim 3, wherein, The receiving portion is formed by a recess (20) on the upper side of the upper part (12), wherein the edge of the upper section (11a) of the closure element (11) lies tightly against the edge of the upper part (12) delimiting the recess (20).

5. The assembly of claim 1, wherein, In the case of the relative movement of the upper part (12) relative to the lower part (13), the lower section (11b) of the closure element (11) is guided to a mechanical separating device and is separated there from the upper section (11a) of the closure element (11).

6. The assembly of claim 5, wherein, The mechanical separating device is formed by a stop extending into the collection chamber (21), wherein the stop is formed by a web (22) in the lower part (13).

7. The assembly of claim 1, wherein, An outlet opening (23) is provided on the peripheral surface of the lower part (13), through which the separated lower section of the closure element (11) can be guided out, wherein in the guided-out position of the upper part (12) relative to the lower part (13) the collection chamber (21) opens at the outlet opening (23), wherein in the locked position a locking section (16) on the lower side of the upper part (12) locks the outlet opening (23).

8. The assembly of claim 1, wherein, An immersion tube (4) is supported in the container (3), on which an extraction head (2) of the extraction system (1) can be coupled in order to supply or extract a liquid forming a deposit from or to the container (3), wherein the immersion tube (4) can be closed and secured with a tamper-evident device (9) in the case of removal of the extraction head (2).

9. The assembly of claim 8, wherein, The immersion tube (4) can be closed with a closure (8), and the tamper-evident device (9) can be applied to the immersion tube (4) closed with the closure (8) or the tamper-evident device (9) constitutes a closure means (27) for the immersion tube (4).

10. The assembly of claim 8, wherein, The lower part (13) of the securing body (10) has securing means for fastening on the immersion tube (4).

11. The assembly of claim 10, wherein, The securing means are formed by an external thread with which the securing body (10) can be screwed into the immersion tube (4).

12. The assembly of claim 8, wherein, When the tamper-evident device (9) is fastened on the immersion tube (4), the edge region of the upper part (12) of the securing body (10) rests on the upper edge of the immersion tube (4).

13. The assembly of claim 1, wherein, The closure means (27) can be fastened in a container opening of the container (3), and the tamper-evident device (9) is an integral part of the closure means (27).

14. The assembly of claim 13, wherein, The closure means (27) have a closure body (28) which can be fastened in the container opening, and the closure body (28) has a central, hollow-cylindrical receiving portion (30) which extends through the closure body in the axial direction, in which the securing body (10) of the tamper-evident device (9) can be supported.

15. The assembly of claim 14, wherein, The closure body (28) can be fastened on the container opening by means of a screw connection.

16. The assembly of claim 15, wherein, There is provided a hollow-cylindrical projection (25) with an external thread projecting from the upper side of the container (3), which delimits the container opening, wherein the closure body (28) can be fastened on the projection (25), and the closure body (28) has a hollow-cylindrical side wall, on the inside of which an internal thread is provided, which can be screwed on the external thread of the container (3).

17. The assembly of claim 14, wherein, An external thread is provided on the outside of the lower part (13) of the securing body (10), which can be screwed into the internal thread of the closure body (28) delimiting the hollow-cylindrical receiving portion (30).

18. The assembly of claim 14, wherein, In the case of the securing body (10) being supported in the hollow-cylindrical receiving portion (30) of the closure body (28), the upper part (12) of the securing body emerges on the upper side of the closure body (28), and / or the edge region of the upper part (12) of the securing body (10) projecting in the radial direction beyond the lower part (13) rests on the upper side of the container (3).

19. The assembly of claim 18, wherein, A seal is provided on the underside of the edge region of the upper part (12), which seals against a joint portion of the closure body (28), wherein the seal is formed by a sealing ring (33) which surrounds in the circumferential direction of the securing body (10).

20. The assembly of claim 8, wherein, A receiving portion is provided on the upper side of the upper part (12) of the safety body (10), on which a handling device can be supported in a torsion-proof manner.

21. The assembly of claim 20, wherein, In the course of handling the handling device, the upper part (12) is first rotated relative to the lower part (13) of the safety body (10), thereby separating the lower section of the closure element (11), and the closure element (27) is unscrewed from the container opening in the course of further handling of the handling device.

22. The assembly of claim 20, wherein, The container (3) is a keg (24), and the handling device is a sleeve spanner (35).

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